BTS3900L (Ver.C)
Hardware Description Issue
07
Date
2012-02-25
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Technologies Co., Ltd. Address:
Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China
Website:
http://www.huawei.com
Email:
[email protected]
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BTS3900L (Ver.C) Hardware Description
About This Document
About This Document Purpose This document provides reference for planning and deploying the BTS3900L (Ver.C) (referred to as BTS3900L) cabinet. It describes the structure and components of a BTS3900L cabinet. This document also describes the specifications and installation positions of cables.
Product Versions The following table lists the product versions related to this document. Product Name
Product Version
BTS3900L (Ver.C)
V100R004C00
BTS3900L (Ver.C) GSM
V100R013C00
BTS3900L (Ver.C) WCDMA
V200R013C00
BTS3900L (Ver.C) LTE
V100R003C00
Intended Audience This document is intended for: l
System engineers
l
Base station installation engineers
l
Site maintenance engineers
Organization 1 Changes in the BTS3900L (Ver.C) Hardware Description This chapter describes the changes in the BTS3900L (Ver.C) Hardware Description. 2 Exterior of the BTS3900L Cabinet The BTS3900L cabinet is a vertical cabinet designed in compliance with the IEC297 standard. Issue 07 (2012-02-25)
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BTS3900L (Ver.C) Hardware Description
About This Document
3 BTS3900L Hardware Configuration This chapter describes the cabinet configuration, power configuration, and monitoring configuration of the BTS3900L and provides references for site planning and deployment. 4 BTS3900L Components BTS3900L components consist of the BBU3900, RFU, DCDU-11A, fan box, ELU and optional modules. 5 BTS3900L Cables This section describes the BTS3900L cables. The BTS3900L cables consist of the PGND cable, power cable, transmission cable, CPRI cable, signal cable, and RF cable.
Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol
Description Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury. Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation, which if not avoided, could result in equipment damage, data loss, performance degradation, or unexpected results. Indicates a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement important points of the main text.
General Conventions The general conventions that may be found in this document are defined as follows.
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Convention
Description
Times New Roman
Normal paragraphs are in Times New Roman.
Boldface
Names of files, directories, folders, and users are in boldface. For example, log in as user root.
Italic
Book titles are in italics.
Courier New
Examples of information displayed on the screen are in Courier New.
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BTS3900L (Ver.C) Hardware Description
About This Document
Command Conventions The command conventions that may be found in this document are defined as follows. Convention
Description
Boldface
The keywords of a command line are in boldface.
Italic
Command arguments are in italics.
[]
Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... }
Optional items are grouped in braces and separated by vertical bars. One item is selected.
[ x | y | ... ]
Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected.
{ x | y | ... }*
Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected.
[ x | y | ... ]*
Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.
GUI Conventions The GUI conventions that may be found in this document are defined as follows. Convention
Description
Boldface
Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.
>
Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.
Keyboard Operations The keyboard operations that may be found in this document are defined as follows. Format
Description
Key
Press the key. For example, press Enter and press Tab.
Key 1+Key 2
Press the keys concurrently. For example, pressing Ctrl+Alt +A means the three keys should be pressed concurrently.
Key 1, Key 2
Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.
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The mouse operations that may be found in this document are defined as follows.
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Action
Description
Click
Select and release the primary mouse button without moving the pointer.
Double-click
Press the primary mouse button twice continuously and quickly without moving the pointer.
Drag
Press and hold the primary mouse button and move the pointer to a certain position.
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BTS3900L (Ver.C) Hardware Description
Contents
Contents About This Document.....................................................................................................................ii 1 Changes in the BTS3900L (Ver.C) Hardware Description.....................................................1 2 Exterior of the BTS3900L Cabinet..............................................................................................4 3 BTS3900L Hardware Configuration...........................................................................................5 3.1 Module Configurations in the Cabinet...............................................................................................................6 3.2 Power System of the BTS3900L........................................................................................................................7 3.2.1 Configurations of the Upper-Level Circuit Breakers and Power Cables..................................................8 3.2.2 Power Distribution...................................................................................................................................11 3.3 BTS3900L Monitoring System........................................................................................................................12 3.3.1 BBU Monitoring Port..............................................................................................................................12 3.3.2 Monitoring Principles of the Cabinet......................................................................................................13 3.3.3 Customized Alarm Inputs........................................................................................................................14 3.4 Transmission Board Configurations.................................................................................................................17
4 BTS3900L Components...............................................................................................................20 4.1 BBU3900 Equipment.......................................................................................................................................22 4.1.1 BBU3900.................................................................................................................................................22 4.1.2 BBU3900 Components............................................................................................................................23 4.2 DRFU................................................................................................................................................................76 4.3 GRFU................................................................................................................................................................80 4.4 WRFU...............................................................................................................................................................84 4.5 WRFUd.............................................................................................................................................................88 4.6 MRFU...............................................................................................................................................................91 4.7 MRFUd.............................................................................................................................................................95 4.8 MRFUe.............................................................................................................................................................99 4.9 MRFU V3.......................................................................................................................................................102 4.10 LRFU............................................................................................................................................................106 4.11 LRFUe..........................................................................................................................................................109 4.12 DCDU-11A...................................................................................................................................................113 4.13 Fan Assembly...............................................................................................................................................114 4.14 ELU..............................................................................................................................................................116 4.15 GATM..........................................................................................................................................................117 Issue 07 (2012-02-25)
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Contents
5 BTS3900L Cables.......................................................................................................................119 5.1 List of BTS3900L Cables...............................................................................................................................121 5.2 Cable Connections..........................................................................................................................................125 5.2.1 Power Cable Connections......................................................................................................................125 5.2.2 Transmission Cable Connections..........................................................................................................127 5.2.3 CPRI Cable Connections.......................................................................................................................161 5.2.4 Monitoring Signal Cable Connections..................................................................................................177 5.2.5 RF Cable Connections...........................................................................................................................179 5.3 PGND Cables.................................................................................................................................................201 5.4 Power Cable....................................................................................................................................................202 5.4.1 Input Power Cables for the Cabinet.......................................................................................................202 5.4.2 BBU Power Cable.................................................................................................................................203 5.4.3 Power Cable for the FAN Box..............................................................................................................203 5.4.4 RFU Power Cable..................................................................................................................................204 5.4.5 GATM Power Cable..............................................................................................................................205 5.5 Transmission Cable........................................................................................................................................206 5.5.1 E1/T1 Cable...........................................................................................................................................206 5.5.2 FE/GE Cable..........................................................................................................................................209 5.5.3 FE/GE Fiber Optic Cable......................................................................................................................210 5.5.4 Interconnection Cable Between the FE Electrical Ports........................................................................211 5.5.5 Interconnection Cable Between FE Optical Ports.................................................................................211 5.6 CPRI Electrical Cable.....................................................................................................................................212 5.7 Signal Cable....................................................................................................................................................212 5.7.1 Monitoring Signal Cable for the Fan Box.............................................................................................212 5.7.2 Fan Box Cascade Signal Cable..............................................................................................................213 5.7.3 Monitoring Signal Cable for the EMU..................................................................................................214 5.7.4 BBU Alarm Cable.................................................................................................................................215 5.7.5 GPS Clock Signal Cable........................................................................................................................216 5.7.6 Signal Cable for the ELU......................................................................................................................217 5.7.7 Monitoring Signal Cable for the GATM...............................................................................................217 5.8 RF Cable.........................................................................................................................................................218 5.8.1 RF Jumper..............................................................................................................................................218 5.8.2 Inter-RFU RF Signal Cable...................................................................................................................219
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1 Changes in the BTS3900L (Ver.C) Hardware Description
Changes in the BTS3900L (Ver.C) Hardware Description This chapter describes the changes in the BTS3900L (Ver.C) Hardware Description.
07 (2012-02-25) This is the seventh commercial release. Compared with issue 06 (2011-11-30), no content is added. Compared with issue 06 (2011-11-30), this issue incorporates the following changes: Content
Change Description
WMPT
Add the transmission specifications of the boards.
UTRP GTMU LMPT GTMU
Modified the status description of LEDs on the panel of the GTMU.
UBRI
Modified the status description of LEDs on the panel of the UBRI.
UTRP
Modified the status description of LEDs on the panel of the UTRP.
UPEU
Added the description of the power of the UPEU.
Compared with issue 06 (2011-11-30), no content is deleted.
06 (2011-11-30) This is the sixth commercial release. Issue 07 (2012-02-25)
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Compared with issue 05 (2011-09-30), this issue adds the following change: l
3.4 Transmission Board Configurations
Compared with issue 05 (2011-09-30), no content is modified. Compared with issue 05 (2011-09-30), no content is deleted.
05 (2011-09-30) This is the fifth commercial release. Compared with issue 04 (2011-08-30), no content is added. Compared with issue 04 (2011-08-30), this issue incorporates the following changes: Content
Change Description
5.2.4 Monitoring Signal Cable Connections
Updated the figure of monitoring signal cable connections.
GTMU
Corrected the description of the E1 bypass function.
UTRP
Modified the description of DIP switches.
Compared with issue 04 (2011-08-30), no content is deleted.
04 (2011-08-30) This is the fourth commercial release. Compared with issue 03 (2011-06-25), this issue adds the following changes: l
4.9 MRFU V3
l
RF Cable Connections for MRFU V3
Compared with issue 03 (2011-06-25), this issue incorporates the following changes: Content
Change Description
WBBP
Added the baseband transfer capacity of the WBBP.
Transmission Cable Connections in the GSM+LTE Base Station in CoTransmission Mode
Updated the figure about transmission cable connections for a GSM+LTE base station in co-transmission mode.
Transmission Cable Connection in the UMTS+LTE Base Station in CoTransmission Mode
Updated the figure about transmission cable connections for a UMTS+LTE base station in co-transmission mode.
Compared with issue 03 (2011-06-25), no content is deleted. Issue 07 (2012-02-25)
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03 (2011-06-25) This is the third commercial release. Compared with issue 02 (2011-05-25), no content is added. Compared with issue 02 (2011-05-25), this issue incorporates the following change: Content
Change Description
4.8 MRFUe
The short description is modified.
Compared with issue 02 (2011-05-25), no content is deleted.
02 (2011-05-25) This is the second commercial release. Compared with issue 01 (2011-04-30), no content is added. Compared with issue 01 (2011-04-30), this issue incorporates the following change: Content
Change Description
3.2.1 Configurations of the Upper-Level Circuit Breakers and Power Cables
The contents of some upper circuit breaker are added.
Compared with issue 01 (2011-04-30), no content is deleted.
01 (2011-04-30) This is the first commercial release. Compared with issue Draft A (2011-01-30), no content is added. Compared with issue Draft A (2011-01-30), this issue incorporates the following changes: Topic
Change Description
4.13 Fan Assembly
The contents of fan box is modified.
DCDU-11A
The option of 2 x 80A is added.
Compared with issue Draft A (2011-01-30), no content is deleted.
Draft A (2011-01-30) This is the Draft release. Issue 07 (2012-02-25)
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BTS3900L (Ver.C) Hardware Description
2 Exterior of the BTS3900L Cabinet
2
Exterior of the BTS3900L Cabinet
The BTS3900L cabinet is a vertical cabinet designed in compliance with the IEC297 standard. Figure 2-1 shows the exterior and dimension of the BTS3900L cabinet. Figure 2-1 Exterior and dimension of the BTS3900L Cabinet
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3 BTS3900L Hardware Configuration
BTS3900L Hardware Configuration
About This Chapter This chapter describes the cabinet configuration, power configuration, and monitoring configuration of the BTS3900L and provides references for site planning and deployment. 3.1 Module Configurations in the Cabinet This section describes the principles and scenarios for configuring a BTS3900L cabinet. 3.2 Power System of the BTS3900L The BTS3900L supports -48 V DC power supply. 3.3 BTS3900L Monitoring System The BTS3900L monitoring system monitors all boards and components in the cabinet. If any board or component is faulty, an alarm is reported automatically. The alarm signals are collected both inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can be monitored. 3.4 Transmission Board Configurations In different modes, different transmission boards can be configured for E1/T1 or FE signal transmission.
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3.1 Module Configurations in the Cabinet This section describes the principles and scenarios for configuring a BTS3900L cabinet.
Configuration Principles Table 3-1 describes the principles for configuring a BTS3900L cabinet. Table 3-1 Configuration principles Module
Optional or Mandatory
Maximum Number of Modules Configured in a Cabinet
Remarks
BBU
Mandatory
2
l When only one BBU is configured, the BBU is installed in the upper part of the cabinet. l When two BBUs are configured, the BBU installed in the upper part of the cabinet is BBU0, and the BBU installed in the lower part of the cabinet is BBU1.
RFU
Mandatory
12
-
Fan box
Mandatory
2
-
DCDU-11A
Mandatory
2
The number is subject to the number of the BBUs.
RFU filler panel
Optional
-
To ensure proper ventilation of the cabinet, the slot in the RFU subrack that is not installed with an RFU must be installed with a filler panel.
Transmission equipment
Optional
-
l The transmission equipment must be able to work properly at a temperature higher than 55 C. l The transmission equipment is installed at the bottom of the cabinet. When the GATM is required, it is preferentially installed at the bottom of the cabinet, and the transmission equipment is installed on top of the GATM.
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Cabinet Configurations Figure 3-1 shows the configuration of a BTS3900L cabinet. Figure 3-1 Cabinet configurations
(1) RFU
(2) FAN unit
(3) Air inlet
(4) DCDU-11A
(5) BBU
(6) Cabling space
(7) Installation space for the transmission equipment
-
NOTE
Space for installing the transmission equipment is 4 U. When BBU1 is required, it occupies a 2 U space.
3.2 Power System of the BTS3900L The BTS3900L supports -48 V DC power supply. Table 3-2 lists the input voltage scope supported by the BTS3900L.
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Table 3-2 DC input voltage scope supported by the BTS3900L Power Supply
Rated Voltage
-48 V DC
-38.4 V DC to -57 V DC
3.2.1 Configurations of the Upper-Level Circuit Breakers and Power Cables This section describes the recommended configurations of the upper-level circuit breaker and power cables for the BTS3900L. The recommended configurations are based on a scenario where a base station is fully configured and where the output power of the base station reaches the peak value. The power requirements for the customer equipment in the cabinet are also considered.
BTS3900L DC Cabinet In the -48 V DC power supply scenario, the recommended configurations of the upper-level circuit breakers and power cables for the BTS3900L are listed in Table 3-3. NOTE
l All power cables must comply with local standards. l P is short for Pole, indicating the number of switches simultaneously controlled by a pole.
Table 3-3 Recommended configurations of the upper-level circuit breakers and power cables for the BTS3900L DC cabinet Configuration(1)(2) (9)(10)
l Seven to twelve high-power RFUs (radio frequency units) (6)
Minimum Circuit Breaker Configuration Required by Customer Equipment(3)(4)(5)
Power Cable(8)
Remark
4 x 80 A/1P (default)
4 x 16 mm2 for the DC power input from two DCDU-11As.
≤ 15 m
2 x 160 A/1P
2 x 35 mm2 LSZH (low smoke zero halogen) for the DC power input from two DCDU-11As.
4 x 63 A/1P
4 x 16 mm2 for the DC power input from two DCDU-11As.
l Two BBUs
l Seven to twelve low-power RFUs (7)
l Two BBUs
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Configuration(1)(2) (9)(10)
l Seven to twelve low-power RFUs
Minimum Circuit Breaker Configuration Required by Customer Equipment(3)(4)(5)
Power Cable(8)
2 x 80 A/1P
2 x 16 mm2 for the DC power input from two DCDU-11As.
2 x 80 A/1P
2 x 16 mm2 for the DC power input from two DCDU-11As.
3 x 80 A/1P
3 x 16 mm2 for the DC power input from two DCDU-11As, one of which is connected to two circuit breakers and the other DCDU-11A is connected to one circuit breaker.
2 x 80 A/1P (Restricted)(11)
2 x 16 mm2 for the DC power input from one DCDU-11A.
2 x 63 A/1P
2 x 16 mm2 for the DC power input from two DCDU-11As.
l One to two BBUs l One to six highpower RFUs l zero to two BBUs
Remark
l The maximum configuration of one subrack is three RFUs. l One to six highpower RFUs l zero to two BBUs l A subrack is allowed to configure with more than three RFUs.
l One to six highpower RFUs l One BBU l The maximum of six RFUs are configured in one subrack. l One to six lowpower RFUs l One to two BBUs l The maximum configuration of one subrack is three RFUs..
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Configuration(1)(2) (9)(10)
l One to six lowpower RFUs
Minimum Circuit Breaker Configuration Required by Customer Equipment(3)(4)(5)
Power Cable(8)
3 x 63 A/1P
3 x 16 mm2 for the DC power input from two DCDU-11As, one of which is connected to two circuit breakers and the other DCDU-11A is connected to one circuit breaker.
2 x 80 A/1P
2 x 16 mm2 for the DC power input from two DCDU-11As, one of which is connected to two circuit breakers and the other DCDU-11A is connected to one circuit breaker
2 x 63 A/1P (Restricted)(11)
2 x 16 mm2 for the DC power input from one DCDU-11A
l one to two BBUs l A subrack can be configured with more than three RFUs.
l One to six lowpower RFUs l One BBU
Remark
l The maximum of six RFUs are configured in one subrack.
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(1) If both high-power RFUs and low-power RFUs exist in the same base station, the power configuration for high-power RFUs will apply for the base station. (2) If possible, it is suggested to configure the base station with the power configuration for maximum high-power RFUs so as to satisfy all scenarios. If the power configuration has to be in accordance with actual scenarios, the circuit breaker and power cables need to be upgraded in case of base station extension. (3) The power configuration applicable for the scenarios with higher power consumption is also applicable for the scenarios with lower power consumption. (4) The circuit breakers for high load capability are applicable to those for low load capability. The sequence of load capability for circuit breakers is: 1 x 160A > 2 x 80A > 2 x 63A > 1 x 100A > 1 x 80A > 1 x 63A. (5) The power consumption of inner transmission is ignored for the circuit breakers of indoor macro base station. (6) High-power RFUs include: LRFUe, WRFUd, and MRFUd. (7) Low-power RFUs include: DRFU, GRFU, WRFU, MRFU, CRFU, LRFU. and MRFU V3. (8) If two external power inputs are supplied, the following requirements must be met: l
The two power inputs must be supplied by the same power cabinet.
l
The circuit breakers used for the two power inputs have the same model and specifications.
l
The power cables for the two power inputs must have the same cross-sectional area and length.
l
When powering on the base station, turn on the two circuit breakers of power input before turning on the circuit breakers for all the RFUs. When powering off the base station, turn off the circuit breakers for all the RFUs before turning off the two circuit breakers of power input.
(9) One DCDU-11A can supply a maximum of three power inputs for two BBUs. The cabinet can be configured with a maximum of two BBUs, one with power consumption of 650 W and the other with power consumption of 360 W. If an additional DCDU-11A is configured, the cabinet can be configured with two BBUs both with power consumption of 650 W. (10) If two BBU3900s are configured, the second BBU3900 shall obtain power from a power cabinet outside of the DCDU-11A in the base station that the second BBU3900 installed.
(11) The power cables for the fan unit or BBU must be reconnected. For details, see the BTS3900L (Ver.C) Installation Guide.
3.2.2 Power Distribution This section describes the power distribution mode of the BTS3900L cabinet. The external power equipment supplies -48 V DC power to the DCDU-11A of the BTS3900L cabinet, and the DCDU-11A feeds power to each module in the cabinet. Figure 3-2 shows the principles of the power distribution.
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Figure 3-2 Power distribution of the BTS3900
3.3 BTS3900L Monitoring System The BTS3900L monitoring system monitors all boards and components in the cabinet. If any board or component is faulty, an alarm is reported automatically. The alarm signals are collected both inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can be monitored.
3.3.1 BBU Monitoring Port The BBU houses the UPEU and UEIU for monitoring. Each board has two Boolean input ports and two RS485 input ports, and each Boolean input port receives four Boolean inputs. Figure 3-3 shows the slot assignment for the UPEU and UEIU.
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Figure 3-3 Slot assignment for the UPEU and UEIU
Table 3-4 lists the ports on the UPEU and UEIU. Table 3-4 Ports on the UPEU and UEIU Slot
Board
Port
Connector
Quantity
Description
Slot19
UPEU
EXT-ALM0
RJ45 connector
1
Port for Boolean inputs 0 to 3
EXT-ALM1
RJ45 connector
1
Port for Boolean inputs 4 to 7
MON0
RJ45 connector
1
Port for RS485 input 0
MON1
RJ45 connector
1
Port for RS485 input 1
EXT-ALM0
RJ45 connector
1
Port for Boolean inputs 0 to 3
EXT-ALM1
RJ45 connector
1
Port for Boolean inputs 4 to 7
MON0
RJ45 connector
1
Port for RS485 input 0
MON1
RJ45 connector
1
Port for RS485 input 1
Slot18
UEIU (optional)
3.3.2 Monitoring Principles of the Cabinet A monitoring board is connected to the MON port on the BBU. It collects the alarms of all components and reports the alarms to the BBU by using the RS485 serial bus. For details about the monitoring ports on the FMU, see FMU. Issue 07 (2012-02-25)
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Two BBUs are required in an evolution from a single-mode or dual-mode scenario as shown in Figure 1 to a triple-mode scenario as shown in Figure 2 or in a new triple-mode scenario as shown in Figure 2. The BBU installed in the upper part of the cabinet is BBU0, and the BBU installed in the lower part of the cabinet is BBU1. In a triple-mode scenario, all the monitoring equipment is connected to BBU0. The monitoring principles of the triple-mode scenario are the same as the dual-mode scenario. NOTE
The BBU 0 is main BBU, and the BBU 1 is extension BBU.
If any device in the figure is not configured at the site, neither need its cable to be installed. Figure 3-4 Monitoring system for the BTS3900L cabinet (triple-mode scenario)
NOTE
For details about how to monitor the EMU, please refer to 3.3.3 Customized Alarm Inputs.
3.3.3 Customized Alarm Inputs Customized alarms must be reported to the BBU. The customized alarms are reported to the BBU by any of the following methods: l
The alarms are collected by the UPEU or UEIU in the BBU.
l
The alarms are collected by the EMU.
For details about the configuration of the customized alarms, see the related initial configuration guide. Issue 07 (2012-02-25)
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Monitoring Board Configuration The configurations of the monitoring boards in the BTS3900L depend on the number of customized alarms, as listed in Table 3-5. Table 3-5 Configuration of monitoring boards in the BTS3900L Number of Dry Contact Alarm Inputs
Monitoring Board
None
UPEU
1 to 16
UPEU+UEIU
17 to 32
UPEU+UEIU+EMU
NOTE
l If backup power is required for the BBU, two UPEUs are configured instead of UPEU+UEIU. l The analog values can be monitored only by the EMU. l The EMU with sensors can be configured according to site requirements.
Customized Alarms Collected by the UPEU or UEIU Each UPEU or UEIU in the BBU supports eight Boolean signal inputs. The UPEU+UEIU or a maximum of two UPEUs can be configured for a BBU to receive 16 Boolean signal inputs. This method can be used for the configuration of less than 16 customized alarm inputs. The method to collect customized alarms by the UPEU or UEIU is shown in Figure 3-5.
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Figure 3-5 Customized alarms collected by the UPEU or UEIU
Customized Alarms Collected by the EMU If there are more than 16 Boolean signal inputs, the EMU can be configured for the BTS3900. Each EMU supports 32 Boolean signal inputs and two RS485 signal inputs, the cable connections are shown in Figure 3-6.
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Figure 3-6 Customized alarms collected by the EMU
3.4 Transmission Board Configurations In different modes, different transmission boards can be configured for E1/T1 or FE signal transmission. Table 3-6 lists the transmission modes supported by the boards working in different modes. Table 3-6 Transmission modes supported by the boards Transmissi on Mode
Board
GSM/ UMTS Mode
Port
Port Capacity
Fullduplex or Halfduplex
ATM over E1/T1
WMPT
UMTS
1
Four channels
Full-duplex
UTRP3
UMTS
2
Eight channels
Full-duplex
GTMU/ GTMUb
GSM
1
Four channels
Full-duplex
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Transmissi on Mode
TDM over E1/T1
Transmissio n over FE/ GE optical cable
Transmissio n over FE/ GE electrical cable
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Board
GSM/ UMTS Mode
Port
Port Capacity
Fullduplex or Halfduplex
WMPT
UMTS
1
Four channels
Full-duplex
UTRP4
UMTS
2
Eight channels
Full-duplex
UTRPb4
LTE
2
Eight channels
Full-duplex
GTMU/ GTMUb
GSM
1
Four channels
Full-duplex
UTRPb4
GSM
1
Four channels
Full-duplex
GTMU/ GTMUb
GSM
1
10 Mbit/s and 100 Mbit/s
Full-duplex
LMPT
LTE
2
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
WMPT
UMTS
1
10 Mbit/s and 100 Mbit/s
Full-duplex
UTRP2
UMTS
2
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
GTMU/ GTMUb
GSM
1
10 Mbit/s and 100 Mbit/s
Full-duplex
LMPT
LTE
2
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
WMPT
UMTS
1
10 Mbit/s and 100 Mbit/s
Full-duplex
UTRP9
UMTS
4
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
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l The GTMU/GTMUb is mandatory for the GSM mode. When the channels of the E1/T1 signals are more than four, the UTRPb4 must be configured for E1/T1 signal transmission. l The WMPT is mandatory for the UMTS mode. When the channels of the E1/T1 signals are more than four, the UTRP3 or UTRP4 must be configured for E1/T1 signal transmission. When the transmission rate for the FE optical cable is higher than 100 Mbit/s, the UTRP2 must be configured. When the transmission rate for the FE electrical cable is more than 100 Mbit/s, the UTRP9 must be configured. l The transmission over FE/GE optical cable is recommended for the LMPT.
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4
BTS3900L Components
About This Chapter BTS3900L components consist of the BBU3900, RFU, DCDU-11A, fan box, ELU and optional modules. 4.1 BBU3900 Equipment This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 and their panels, functions, indicators, ports, and engineering specifications. 4.2 DRFU Double radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GO scenario. 4.3 GRFU GSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GO scenario. 4.4 WRFU WCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UO scenario. 4.5 WRFUd WCDMA Radio Frequency Unit Type D (WRFUd) is an RF unit of WCDMA radio filter and applies to UO scenario. 4.6 MRFU Multi-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL. 4.7 MRFUd Multi-Mode Radio Frequency Unit Type D (MRFUd) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL. 4.8 MRFUe Multi-Mode Radio Frequency Unit Type E (MRFUe) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL. 4.9 MRFU V3 Multi-Mode Radio Frequency Unit V3 (MRFU V3) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL. Issue 07 (2012-02-25)
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4.10 LRFU LTE Radio Frequency Unit (LRFU) is an RF unit of LTE FDD (Frenquency Division Duplex) and applies to LTE Only scenario. 4.11 LRFUe LTE Radio Frequency Unit Type E (LRFUe) is an RF unit of LTE FDD (Frenquency Division Duplex) and applies to LO scenario. 4.12 DCDU-11A The DCDU-11A provides DC power to all components in the cabinet. 4.13 Fan Assembly A fan assembly consists of a fan tray, four fans, and an FMU. 4.14 ELU The Electronic Label Unit (ELU) reports the cabinet type information. 4.15 GATM The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.
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4.1 BBU3900 Equipment This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 and their panels, functions, indicators, ports, and engineering specifications. The BBU3900 performs the following functions: l
Provides ports for communication between the base station and the BSC or RNC.
l
The GTMU provides CPRI ports for communication between the BBU and the RFUs.
l
Provides USB ports. A USB flash drive can be inserted into the USB port to perform the automatic base station upgrade during software installation and data configuration.
l
Provides an OM channel between the base station and the LMT or the M2000 to operate and maintain the base station.
l
Processes uplink and downlink data.
l
Manages the entire dual-mode system in terms of OM and signaling processing.
l
Provides the system clock.
4.1.1 BBU3900 The BBU3900, which has a case structure, is 19 inches wide and 2 U high. The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm x (3.39 in. x 17.4 in. x 12.2 in.) (H x W x D), as shown in Figure 4-1. Figure 4-1 BBU3900
The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). It is used during base station commissioning. l
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If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mounting ear of the BBU, as shown in Figure 4-2.
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Figure 4-2 ESN (1)
l
If there is no label on the FAN unit of the BBU, the ESN is printed on a mounting ear of the BBU, as shown in Figure 4-3. Figure 4-3 ESN (2)
4.1.2 BBU3900 Components This describes the boards and module of the BBU3900 in terms of their configuration principles, functions, ports, LEDs, and DIP switches.
Slot Assignment of the BBU3900 This section describes slot assignment of the BBU3900 in the GSM Only (hereinafter referred to as GO), UMTS Only (hereinafter referred to as UO), LTE Only (hereinafter referred to as LO), GSM+UMTS (hereinafter referred to as GU), GSM+LTE (hereinafter referred to as GL), UMTS+LTE (hereinafter referred to as UL), (GSM+UMTS)+(LTE Only) (hereinafter referred to as GU+LO), (GSM+LTE)+(UMTS Only) (hereinafter referred to as GL+UO) scenarios.
Slots of the BBU3900 The slot assignment of the BBU3900 in GO mode, BBU3900 in GU mode, BBU3900 in UO mode, BBU3900 in LO mode, BBU3900 in GL mode, BBU3900 in UL mode, BBU3900 in GU +LO mode, and BBU3900 in GL+UO mode are the same, as shown in Figure 4-4. Issue 07 (2012-02-25)
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Figure 4-4 Slots of the BBU3900
BBU3900 Working in GO Mode Table 4-1 describes the principles for configuring the boards in the BBU3900 working in GO mode. Table 4-1 Principles for configuring the boards in the BBU3900 working in GO mode Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
GTMU
Mandatory
1
Slots 5 and 6
It is configured only in slot 6 (with slots 5 and 6 occupied).
FAN
Mandatory
1
Slot 16
It is configured only in slot 16.
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is preferentially configured in slot 19.
USCU
Optional
1
Slot 0 or 1
It is preferentially configured in slot 1. The 1 U GPS/ GLONASS receiver is configured in slot 1 (with slots 0 and 1 occupied).
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UTRP
Optional
1
Slot 0 or 4
It is preferentially configured in slot 4.
UEIU
Optional
1
Slot 18
-
UBRI
Optional
1
Slot 2
-
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Figure 4-5 shows the typical configurations of the BBU3900 working in GO mode. Figure 4-5 Typical configurations of the BBU3900 working in GO mode
BBU3900 Working in UO Mode Table 4-2 describes the principles for configuring the boards in the BBU3900 working in UO mode. Table 4-2 Principles for configuring the boards in the BBU3900 working in UO mode
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Board
Optional or Mandatory
Maximum Quantity
Slot
Remarks
WMPT
Mandatory
2
Slot 6 or 7
A single WMPT is preferentially configured in slot 7.
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BTS3900L (Ver.C) Hardware Description
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Board
Optional or Mandatory
Maximum Quantity
Slot
Remarks
WBBP
Mandatory
6
Slots 0 to 5
It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 2, 4, or 5. If a WBBPd is required, it is installed, in descending order of priority, in slot 3 or 2. If five or more WBBPs are required, ensure that two WBBPs are installed in slots 2 and 3. At least one of the two WBBPs is WBBPd.
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FAN
Mandatory
1
Slot 16
It is configured only in slot 16.
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is preferentially configured in slot 19.
UEIU
Optional
1
Slot 18
-
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BTS3900L (Ver.C) Hardware Description
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Board
Optional or Mandatory
Maximum Quantity
Slot
Remarks
UTRP
Optional
4
Slot 0, slot 1, slot 4, and slot 5
It is installed, in descending order of priority, in slot 4, 5, 0, or 1.
USCU
Optional
1
Slot 1 or 0
The USCU is preferentially configured in slot 1. The 1 U GPS/ GLONASS receiver is configured in slot 1 (with slots 0 and 1 occupied).
Figure 4-6 shows the typical configurations of the BBU3900 working in UO mode. Figure 4-6 Typical configuration of the BBU3900 in UO mode
BBU3900 Working in LO Mode Table 4-3 describes the principles for configuring the boards in the BBU3900 working in LO mode. Table 4-3 Principles for configuring the boards in the BBU3900 working in LO mode
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
LMPT
Mandatory
2
Slot 6 or 7
A single LMPT is configured in slot 7.
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
LBBP
Mandatory
6
Slots 0 to 5
A single LBBP is preferentially configured in slot 3. The priorities of slot assignment are as follows: slot 3, slot 2, slot 1, slot 0, slot 4, slot 5.
FAN
Mandatory
1
Slot 16
It is configured only in slot 16.
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is configured only in slot 19.
UEIU
Optional
1
Slot 18
-
UTRP
Optional
1
Slot 4 or 5
It is preferentially configured in slot 4.
USCU
Optional
1
Slot 0, 1, 4, or 5
A single USCU is preferentially configured in slot 5. A USCU that occupies 1 U space is configured in slots 5 and 4. If slots 4 and 5 are occupied, a single USCU is configured in slot 1. In this situation, a USCU that occupies 1 U space is configured in slots 1 and 0.
Figure 4-7 shows the typical configurations of the BBU3900 working in LO mode.
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Figure 4-7 Typical configurations of the BBU3900 working in LO mode
BBU3900 Working in GU Mode Table 4-4 describes the principles for configuring the boards in the BBU3900 working in GU mode. Table 4-4 Principles for configuring the boards in the BBU3900 working in GU mode
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
WMPT
Mandatory
1
Slot 7
It is configured only in slot 7.
GTMU
Mandatory
1
Slots 5 and 6
It is configured only in slot 6 (with slots 5 and 6 occupied).
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BTS3900L (Ver.C) Hardware Description
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
WBBP
Mandatory
5
Slots 0 to 4
It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is preferentiall y configured in slot 3 or 2 in descending order of priority. l If no more CPRI ports are required, the WBBP is preferentiall y configured in slot 3, 2, 0, 1, or 4 in descending order of priority. If a WBBPd is required, it is preferentially configured in slot 3 or 2 in descending order of priority. If five or more WBBPs are required, ensure that two WBBPs are installed in slots 2 and 3. At least, one of the two WBBPs is WBBPd.
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FAN
Mandatory
1
Slot 16
It is configured only in slot 16.
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is configured only in slot 19.
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BTS3900L (Ver.C) Hardware Description
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
UEIU
Optional
1
Slot 18
-
UTRP
Optional
2
Slot 0 or 4
It is preferentially configured in slot 4. The slot priority of the GO UTRP is higher than that of the UO UTRP.
USCU
Optional
1
Slot 0 or 4
It is preferentially configured in slot 4.
UBRI
Optional
1
Slot 2
-
Figure 4-8 shows the typical configurations of the BBU3900 working in GU mode. Figure 4-8 Typical configurations of the BBU3900 working in GU mode
BBU3900 Working in GL Mode Table 4-5 describes the principles for configuring the boards in the BBU3900 working in GL mode. Table 4-5 Principles for configuring the boards in the BBU3900 working in GL mode
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
LMPT
Mandatory
1
Slot 7
It is configured only in slot 7.
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BTS3900L (Ver.C) Hardware Description
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Board
Optional/ Mandatory
Maximum Quantity
Installation Slot
Remarks
GTMU
Mandatory
1
Slots 5 and 6
It is configured only in slot 6 (with slots 5 and 6 occupied).
LBBP
Mandatory
5
Slots 0 to 4
It is preferentially configured in slot 3. The priorities of slot assignment are as follows: slot 3, slot 2, slot 1, slot 0, slot 4
FAN
Mandatory
1
Slot 16
It is configured only in slot 16.
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is configured only in slot 19.
UEIU
Optional
1
Slot 18
-
UTRP
Optional
2
Slot 0 or 4
It is preferentially configured in slot 4, 0, or 1 in descending order of priority. The slot priority of the GO UTRP is higher than that of the LO UTRP.
USCU
Optional
1
Slot 0 or 4
It is preferentially configured in slot 1. The 1 U GPS/ GLONASS receiver is configured in slot 1 (with slots 0 and 1 occupied).
UBRI
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Optional
1
Slot 2
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Figure 4-9 shows the typical configurations of the BBU3900 working in GL mode. Figure 4-9 Typical configuration of the BBU3900 working in GL mode
BBU3900 Working in UL Mode Table 4-6 describes the principles for configuring the boards in the BBU3900 working in UL mode. Table 4-6 Principles for configuring the boards in the BBU3900 working in UL mode
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Board
Optional or Mandatory
Maximum Quantity
Slot
Remarks
LMPT
Mandatory
1
Slot 6
It is configured only in slot 6.
WMPT
Mandatory
1
Slot 7
It is configured only in slot 7.
LBBP
Mandatory
5
Slot 0, 1, 2, 4, or 5
A single LBBP is configured only in slot 2. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 2, 0, 1, 4, or 5.
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BTS3900L (Ver.C) Hardware Description
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Board
Optional or Mandatory
Maximum Quantity
Slot
Remarks
WBBP
Mandatory
4
Slot 0, 1, 3, 4, or 5
A single WBBP is configured only in slot 3. If more LBBPs are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 4, or 5. If a WBBPd is required, it is configured only in slot 3.
FAN
Mandatory
1
Slot 16
Configured only in slot 16
UPEU
Mandatory
2
Slot 18 or 19
A single UPEU is configured only in slot 19.
UEIU
Optional
1
Slot 18
-
UTRP
Optional
2
Slot 4 or slot 5
It is preferentially configured in slot 4. The slot priority of the UO UTRP is higher than that of the LO UTRP.
USCU
Optional
1
Slot 4 or slot 5
It is preferentially configured in slot 4.
Figure 4-10 shows the typical configurations of the BBU3900 working in UL mode.
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Figure 4-10 Typical configuration of the BBU3900 working in UL mode
BBU3900 Working in GU+LO Mode BBU3900 Working in GU Mode shows the configuration principles of the boards in the BBU3900 working in GU mode. BBU3900 Working in LO Mode shows the configuration principles of the boards in the BBU3900 working in LO mode.
BBU3900 Working in GL+UO Mode BBU3900 Working in GL Mode shows the configuration principles of the boards in the BBU3900 working in GL mode. BBU3900 Working in UO Mode shows the configuration principles of the boards in the BBU3900 working in UO mode.
GTMU The GSM Transmission &Timing & Management Unit for BBU (GTMU) is the basic transmission and control function entity of the BBU. It provides the reference clock, maintenance port, and external alarm collection port, monitors the power, control and manage the entire BTS.
Specifications of the GTMU The GTMU is classified into two types: GTMU and GTMUb. Table 4-7 lists the specifications of the GTMU and GTMUb. Table 4-7 Specifications of the GTMU
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Board
Mode
Transmissi on Mode
Port
Port Capacity
Full/HalfDuplex
GTMU/ GTMUb
GSM
TDM over E1/T1
1
Four channels
Full-duplex
Transmissio n over FE/ GE optical cable
1
10 Mbit/s and 100 Mbit/s
Full-duplex
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BTS3900L (Ver.C) Hardware Description
4 BTS3900L Components
Board
Mode
Transmissi on Mode
Port
Port Capacity
Full/HalfDuplex
Transmissio n over FE/ GE electrical cable
1
10 Mbit/s and 100 Mbit/s
Full-duplex
Panel Figure 4-11 and Figure 4-12 show the panels of the GTMU and GTMUb. Figure 4-11 GTMU panel
Figure 4-12 GTMUb panel
Functions The GTMU performs the following functions: l
Controls, maintains, and operates the base station.
l
Supports fault management, configuration management, performance management, and security management.
l
Monitors the fans and power modules.
l
Provides and manages the clock source of the base station in centralized mode.
l
Provides the clock output for test.
l
Provides the FE port for maintenance on the OM system.
l
Supports transmission through four E1s and two FEs.
l
Provides CPRI ports for communication between the BBU and the RF units.
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Indicator Table 4-8 describes the indicators on the GTMU. Table 4-8 Indicators on the GTMU Indicator
Color
Status
Description
RUN
Green
Steady on
The board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is running properly.
On for 2s and off for 2s
The base station is disconnected from the base station controller.
On for 0.125s and off for 0.125s
Software is being upgraded or loaded from the USB flash drive.
Steady on
An alarm is generated, indicating a fault.
Steady off
There is no fault.
Steady on
The board works in the active state.
Steady off
The board works in the standby state.
ALM
ACT
Red
Green
Besides the preceding three indicators, there are some other indicators on the board, which are used for indicating the connection status of the FE optical port, FE electrical port, CPRI port, commissioning Ethernet port. They are near the corresponding ports and have no silkscreen. Table 4-9 describes the indicators. Table 4-9 Indicators for ports
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Indicator
Color
Status
Description
LIU0 to LIU3
Green
Steady on
The link is in the idle state or a local alarm is generated.
On for 1s and off for 1s
An E1/T1 remote alarm is generated.
Steady off
The link is functional.
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Indicator
Color
Status
Description
CPRI0 to CPRI5
Red/green
Steady green
The inter-BBU transmission link is normal.
Steady red
An optical module fails to receive signals because the optical module is faulty or the fiber optic cable is broken.
Blinking red (on for 1s and off for 1s)
The interconnection link is out of lock because there is mutual lock between the BBU cases or mismatched data rate over QSFP ports. You are advised to check the system configuration to locate the fault.
ETH
Green (LINK indicator on the left)
Orange (ACT indicator on the right)
FE0
Green (LINK indicator on the left)
Orange (ACT indicator on the right)
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Steady off
The QSFP module cannot be detected, or the optical module is powered off.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
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Indicator
Color
FE1 (on the GTMUb)
Green (LINK indicator on the left)
Green (ACT indicator on the right)
Status
Description
Steady off
No data is being transmitted or received.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
M_S (on the GTMUb)
-
-
This is the indicator for the reserved port.
EXT (on the GTMUb)
-
-
This is the indicator for the reserved port.
Port Table 4-10 describes the ports on the GTMU. Table 4-10 Ports on the GTMU
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Silkscreen
Connector
Description
CPRI0 to CPRI5
SFP female connector
Data transmission port interconnected to the RFU. It supports the input and output of optical and electrical transmission signals.
EXT (on the GTMUb)
SFP female connector
Reserved
ETH
RJ45 connector
Local maintenance and commissioning port
FE0
RJ45 connector
Connected to the routers in the equipment room through FE cables to transmit network information
FE1
DLC connector
Connected to the routers in the equipment room through optical cables to transmit network information
USB
USB connector
Used for automatic software upgrade through the USB disk
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Silkscreen
Connector
Description
TST
USB connector
Providing reference clock for the test instruments
E1/T1 port
DB26 female connector
Used for four E1/T1 inputs and outputs between the GTMU and the UELP or between BSCs
The RST button on the panel of the GTMU is used for resetting the board.
DIP Switch On the GTMU, there are five DIP switches, each of which has four bits. DIP switches S1 and S2 need to be set jointly. The functions of the five DIP switches are as follows: l
S1 is used to set the E1 resistance. Table 4-11 provides details on the DIP switch.
l
S2 is used to set the grounding mode of E1/T1 transmission cables. Table 4-12 provides details on the DIP switch.
l
S3 is reserved.
l
S4 is used to determine whether to enable E1 bypass. Table 4-13 provides details on the DIP switch.
l
S5 is used for timeslot settings when the E1 bypass is selected. Table 4-14 provides details on the DIP switch.
Table 4-11 Description on S1 DIP Switch
DIP Status 1
2
3
4
S1
ON
ON
OFF
OFF
The E1 resistance is set to 75 ohm.
OFF
ON
OFF
OFF
The E1 resistance is set to 120 ohm.
ON
OFF
OFF
OFF
The T1 resistance is set to 100 ohm.
Description
Others
Unavailable
NOTE
Bits 3 and 4 of S1 should be kept the factory settings, without any manual setting onsite. The out-of-factory state should be OFF. If the bits are ON, set them to OFF.
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Table 4-12 Description on S2 DIP Switch
DIP Status
Description
1
2
3
4
S2
OFF
OFF
OFF
OFF
All the bits are set to OFF by default in all modes.
ON
ON
ON
ON
When the four E1 RX links in 75 ohm have errors, all the bits of S2 must be set to ON to rectify the faults on the E1 links.
Others
Unavailable
Table 4-13 Description on S4 DIP Switch
DIP Status
Description
1
2
3
4
S4
ON
ON
ON
ON
Supporting E1 bypass
OFF
OFF
OFF
OFF
Not supporting E1 bypass
Others
Unavailable
Table 4-14 Description on S5
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DIP Switch
DIP Status 1
2
3
4
S5
ON
ON
ON
ON
Not supporting E1 bypass
OFF
ON
ON
OFF
Supporting E1 bypass for two cascaded base stations
ON
OFF
ON
OFF
Supporting E1 bypass for three cascaded base stations
OFF
OFF
ON
OFF
Supporting E1 bypass for four cascaded base stations
Description
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DIP Switch
DIP Status
Description
1
2
3
4
ON
ON
OFF
OFF
Supporting E1 bypass for five cascaded base stations
OFF
ON
OFF
OFF
Supporting E1 bypass for six cascaded base stations
WMPT The WCDMA main processing & transmission unit (WMPT) processes signals for the BBU3900 and manages resources for other boards in the BBU3900.
Specifications of the WMPT Table 4-15 lists the transmission capabilities of the WMPT. Table 4-15 Transmission capabilities of the WMPT Board
Transmission Mode
Port
Port Capacity
Full/HalfDuplex
WMPT
ATM over E1/ T1 or IP over E1/T1
1
Four channels
Full-duplex
Transmission over FE/GE optical cable
1
100 Mbit/s and 1000 Mbit/s
Full-duplex
Transmission over FE/GE electrical cable
1
100 Mbit/s and 1000 Mbit/s
Full-duplex
Panel Figure 4-13 shows the WMPT. Figure 4-13 WMPT
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Functions The WMPT performs the following functions: l
Performs OM functions such as configuration management, equipment management, performance monitoring, signaling processing, and active and standby switchover, and provides OM channel to communicate with the LMT or M2000.
l
Provides reference clock for the system.
l
Processes signaling and manages resources for other boards in the BBU3900.
l
Provides USB ports. A USB flash drive that stores required software and configuration data can be inserted into the USB port to perform the automatic base station upgrade.
l
Provides a 4-channel E1 port over ATM or IP.
l
Provides an FE electrical port and an FE optical port over IP.
Indicator Table 4-16 describes the indicators on the WMPT panel. Table 4-16 Indicators on the WMPT panel Silkscreen
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply.
On for 1s and off for 1s
The board is functioning properly according to the configuration.
On for 0.125s and off for 0.125s
The board is being loaded or configured, the board is not started, or the board is running properly.
Steady off
There is no fault.
Steady on
A hardware alarm is generated on the board.
Steady on
The board serves as an active board.
Steady off
The board serves as a standby board.
ALM
ACT
Red
Green
In addition to the preceding three indicators, there are six indicators on the board, which indicate the connection status of the FE optical port, FE electrical port, and debugging port. The six Issue 07 (2012-02-25)
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indicators do not have silkscreen on the WMPT panel, whereas they are at both sides of the corresponding ports, as shown in Figure 4-14. Figure 4-14 Indicators for the ports on the WMPT
Table 4-17 lists the indicators on the board. Table 4-17 Ports and Indicators Indicator
Color
Status
Description
Indicators for the FE1 optical port
Green (LINK)
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Green (ACT)
Indicators for the FE0 electrical port
Green (LINK)
Yellow (ACT)
Indicators for the ETH port
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Green (LINK)
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Indicator
Color
Status
Description
Yellow (ACT)
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Port Table 4-18 describes the ports on the panel of the WMPT. Table 4-18 Ports on the panel of the WMPT Silkscreen
Connector
Description
E1/T1 port
DB26 connector
E1/T1 port
FE0
RJ45 connector
FE electrical port
FE1
SFP connector
FE optical port
GPS
SMA connector
Reserved
ETH
RJ45 connector
Commissioning
USB
USB connector
USB loading port
TST
USB connector
USB commissioning port
RST
-
Reset button
DIP Switch The WMPT has two DIP switches. SW1 is used to set the work mode of the E1/T1 signal cable, and SW2 is used to set the resistance of the four E1/T1 signal cables in different modes. Figure 4-15 shows the DIP switch settings of the WMPT.
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Figure 4-15 DIP switch settings of the WMPT
Table 4-19 and Table 4-20 list the DIP switch settings of the WMPT. Table 4-19 Settings of the DIP switch SW1 on the WMPT DIP Switch SW1
DIP Status
Description
1
2
3
4
ON
ON
OFF
OFF
T1
OFF
OFF
ON
ON
The E1 resistance is set to 120 ohm.
ON
ON
ON
ON
The E1 resistance is set to 75 ohm.
Others
Unavailable
Table 4-20 Settings of the DIP switch SW2 on the WMPT DIP Switch
DIP Status 1
2
3
4
SW2
OFF
OFF
OFF
OFF
Balanced
ON
ON
ON
ON
Unbalanced
Description
Others
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Unavailable
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LMPT The LTE main processing & transmission unit (LMPT) manages the entire eNodeB system in terms of O&M and signaling processing and provides system clock for the BBU3900.
Specifications of the LMPT Table 4-21 lists the specifications of the LMPT. Table 4-21 Specifications of the LMPT Board
Mode
Transmissi on Mode
Port
Port Capacity
Full/HalfDuplex
LMPT
LTE
Transmissio n over FE/ GE optical cable
2
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
Transmissio n over FE/ GE electrical cable
2
10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s
Full-duplex
Panel Figure 4-16 shows the LMPT. Figure 4-16 LMPT
Functions The LMPT has the following functions: l
Enabling configuration management, device management, performance monitoring, signaling processing, and radio source management
l
Controls all boards in the system
l
Providing the system clock
l
Enabling signal exchange between the eNodeB and MME/S-GW
Indicator There are three LEDs on the panel of the LMPT. Table 4-22 describes the LEDs on the LMPT. Issue 07 (2012-02-25)
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Table 4-22 LEDs on the panel of the LMPT Identifier
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is running properly.
On for 0.125s and The board is being loaded, off for 0.125s the board is not started, or the board is running properly. ALM
ACT
Red
Green
Steady on
An alarm is reported, indicating a fault in the board.
Steady off
The board is working properly.
On for 1s and off for 1s
An alarm is generated, and the alarm may be caused by an associated board or port fault. Therefore, you must locate the fault before replacing the board.
Steady on
The board serves as an active board.
Steady off
The board serves as a standby board.
On for 0.125s and The OML link is off for 0.125s disconnected. On for 1s and off for 1s
The board is being tested, such as an RRU Voltage Standing Wave Ratio (VSWR) test through a USB disk. When an upgrade through a USB disk is implemented, the ACT LED does not blink.
Besides the preceding three LEDs, some other LEDs used for indicating the connection status of the FE optical port, FE electrical port, commissioning Ethernet port have no silkscreen on the board. They are near the ports. Table 4-23 describes the LEDs.
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Table 4-23 Ports and LEDs Identifier
Color
Status
Description
SFP0 and SFP1
Green (LINK)
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Steady on
The connection is set up successfully.
Steady off
No connection is set up.
Blinking
Data is being transmitted or received.
Steady off
No data is being transmitted or received.
Orange (ACT)
ETH
Orange (ACT)
Green (LINK)
FE/GE0 to FE/GE1
Green (LINK)
Orange (ACT)
Port Table 4-24 describes the ports on the panel of the LMPT.
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Table 4-24 Ports on the panel of the LMPT Identifier
Connector
Quantity
Purpose
SFP0 and SFP1
LC
2
FE/GE optical port connecting to the transmission equipment or gateway equipment
USB
USB
1
Software loading
TST
USB
1
Test port
ETH
RJ45 connector
1
Commissioning
FE/GE0 to FE/GE1
RJ45 connector
2
FE/GE electrical port connecting to the transmission equipment or gateway equipment
GPS
SMA connector
1
GPS port
RST
-
1
Resetting the BBU3900
NOTE
SFP0 and FE/GE0 ports on the LMPT are used for one GE input. Therefore, they are not used simultaneously. SFP1 and FE/GE1 ports on the LMPT are used for another GE input. Therefore, they are not used simultaneously.
WBBP The WCDMA BaseBand Processing Unit (WBBP) in the BBU3900 processes baseband signals.
Panel The WBBP has three types of panels, as shown in Figure 4-17, Figure 4-18, and Figure 4-19. Figure 4-17 Panel of the WBBPa
Figure 4-18 Panel of the WBBPb
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Figure 4-19 Panel of the WBBPd
Functions The WBBP performs the following functions: l
Provides CPRI ports for communication with RF modules, and supports CPRI ports in 1 +1 backup mode.
l
Processes uplink and downlink baseband signals.
l
The WBBPd supports interference cancellation (IC) within the board.
l
The WBBPd installed in slot 2 or slot 3 supports the IC function of uplink data.
Table 4-25 describes the specifications of the WBBP. NOTE
The baseband board in slot 2 or slot 3 could transfer the received CPRI data to other boards.
Table 4-25 Specifications of the WBBP Board
Number of Cells
Number of UL CEs
Number of DL CEs
Baseband Transfer Capacity
WBBPa
3
128
256
N/A
WBBPb1
3
64
64
Twelve 1T2R cells
WBBPb2
3
128
128
Twelve 1T2R cells
WBBPb3
6
256
256
Twelve 1T2R cells
WBBPb4
6
384
384
Twelve 1T2R cells
WBBPd1
6
64
64
192
192
Twenty-four 1T2R cells
256
256
384
384
256
256
WBBPd2
WBBPd3
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NOTE
There are two CE specifications for the WBBPd1 and WBBPd2 as controlled by the license and parameters.
Indicator There are three indicators on the panel of the WBBP. Table 4-26 describes the indicators on the WBBP and their status. Table 4-26 Indicators on the panel of the WBBP and their status Silkscreen
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply.
On for 1s and off for 1s
The board is functioning properly according to the configuration.
On for 0.125s and off for 0.125s
The board is being loaded or configured, the board is not started, or the board is running in a safety version.
Steady on
An alarm is generated, and the board must be replaced.
On for 1s and off for 1s
An alarm is generated, and the alarm may be caused by another faulty board or port. Therefore, you need to locate the fault before deciding whether to replace the board.
Steady off
There is no fault.
Steady off
The board serves as an active board.
Steady on
The board is in the non-active mode, not activated, not configured, or is manually blocked. Therefore, it does not provide any services.
On for 1s and off for 1s
The power supply for the board is insufficient.
ALM
ACT
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Green
Red
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The WBBPa or WBBPb provides three indicators indicating the status of Small Form-factor Pluggable (SFP) links, and the indicators are below the SFP ports. The WBBPd provides six indicators indicating the status of SFP links, and the indicators are above the SFP ports. Table 4-27 describes the indicators. Table 4-27 Indicators indicating the status of the CPRI ports Silkscreen
Color
Status
Description
CPRIx
Red and green
Steady green
The CPRI link is functioning properly.
Steady red
An optical module fails to receive signals because the optical module is faulty or the optical cable is broken.
Blinking red (on for 0.125s and off for 0.125s)
The RF module connected to the CPRI link has a hardware fault.
Blinking red (on for 1s and off for 1s)
The CPRI link is out of lock because of mutual lock of dualmode clock sources or mismatched data rate over CPRI ports (you are advised to check the system configuration to check the fault) or VSWR alarms are reported on the RF module on the CPRI link because the USB flash drive is under test.
Steady off
The SFP module cannot be detected, or the optical module is powered off.
Port Table 4-28 describes the three CPRI ports on the panel of the WBBPa and WBBPb.
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Table 4-28 Ports on the WBBPa and WBBPb panels Silkscreen
Connector
Description
CPRIx
SFP female connector
Data transmission port interconnected to the RF module. It supports the input and output of optical and electrical transmission signals.
Table 4-29 describes the six CPRI ports on the panel of the WBBPd. Table 4-29 Ports on the WBBPd panel Silkscreen
Connector
Description
CPRI0, CPRI1, CPRI2, CPRI3/ EIH0, CPRI4/EIH1, CPRI5/EIH2
SFP female connector
Data transmission port interconnected to the RF module. It supports the input and output of optical and electrical transmission signals.
LBBP The LTE BaseBand Processing Unit (LBBP) in the BBU3900 processes baseband signals.
Panel The LBBP has two types of panels, as shown in Figure 4-20 and Figure 4-21. Figure 4-20 Panel of the LBBPb
Figure 4-21 Panel of the LBBPc
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The LBBPb is applicable only to the LTE FDD scenario, and the LBBPc is applicable both to the LTE FDD and LTE TDD scenarios.
Functions The LBBP has the following functions: l
Processes uplink and downlink baseband signals.
l
Provides CPRI ports for communication with RF modules.
Table 4-30 lists the specifications of the LBBP that is used in the LTE FDD scenario. Table 4-30 Specifications of the LBBP Board
Number of Cells
Cell Bandwidth
Antenna Configuration
LBBPb
3
10 MHz
One 2T2R channel
1
20 MHz
One 2T2R channel
1
10 MHz
One 4T4R channel
3
20 MHz
One 2T2R channel
3
10 MHz
One 4T4R channel
1
20 MHz
One 4T4R channel
LBBPc
Table 4-31 lists the specifications of the LBBP that is used in the LTE TDD scenario. Table 4-31 Specifications of the LBBP Board
Number of Cells
Cell Bandwidth
Antenna Configuration
LBBPc
3
20 MHz
One 2T2R channel
3
10 MHz
One 4T4R channel
1
20 MHz
One 4T4R channel
1
10 MHz or 20 MHz
One 8T8R channel
Indicator There are three indicators on the panel of the LBBP. Table 4-32 describes the indicators on the LBBP.
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Table 4-32 Indicators on the LBBP Silkscreen
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is running properly.
On for 0.125s and off for 0.125s
The board is being loaded or configured, the board is not started, or the board is running in a safety version.
Steady on
An alarm is generated, and the board must be replaced.
On for 1s and off for 1s
An alarm is generated, and the alarm may be caused by another faulty board or port. Therefore, you must locate the fault before replacing the board.
Steady off
There is no fault.
Steady on
The board has been activated and is providing services.
Steady off
The board is not activated (manually blocked or not configured). Therefore, it does not provide any services.
ALM
ACT
Red
Green
As listed in Table 4-33, the LBBP provides six indicators indicating the status of the SFP links. The indicators are positioned above the SFP ports.
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Table 4-33 Indicators indicating the status of the SFP links Silkscreen
Color
Status
Description
TX RX
Red and green
Steady green
The CPRI link is functioning properly.
Steady red
An optical module fails to receive signals because the optical module is faulty or the optical cable is broken.
Blinking red (on for 0.125s and off for 0.125s)
The RF module connected to the CPRI link has a hardware fault.
Blinking red (on for 1s and off for 1s)
The CPRI link is out of lock because there is mutual lock between dual-mode clock sources or mismatched data rate over CPRI ports (you are advised to check the system configuration to locate the fault), or under the USB flash drive testing conditions, VSWR alarms are reported on the RRU connected to the CPRI link.
Steady off
The SFP module cannot be detected, or the optical module is powered off.
Port Table 4-34 describes the six CPRI ports on the panel of the LBBP.
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Table 4-34 Ports on the LBBP Silkscreen
Connector
Quantity
Description
CPRI0 to CPRI5
SFP female connector
6
Connecting to the RF modules for transmitting service data, clock signals, and synchronization information
FAN The FAN unit for the BBU3900 controls the speed of fans and monitors the temperature of the fan unit. It reports the status of the fans and fan unit, and dissipates heat from the BBU.
Panel The FAN units fall into two types: FAN and FANc, as shown in Figure 4-22 and Figure 4-23. Figure 4-22 FAN
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Figure 4-23 FANc
NOTE
There is a FANc silkscreen on the FANc while the FAN has no such silkscreen.
Functions The FAN unit performs the following functions: l
Controls the fan speed.
l
Reports the status, temperature, and in-position signal of the fans to the main control processing unit.
l
Monitors the temperature at the air intake vent.
l
Dissipates heat.
l
The FANc provides a read-write electronic label.
Indicator There is only one indicator on the panel of the FAN unit, which indicates the operating status of the fans. Table 4-35 describes the indicator. Table 4-35 Indicator on the panel of the FAN unit Silkscreen
Color
Status
Description
STATE
Green
On for 0.125s and off for 0.125s
The module is not registered, and no alarm is reported.
On for 1s and off for 1s
The module is working.
Steady off
No alarm is generated.
On for 1s and off for 1s
The module is reporting alarms.
Red
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UPEU The Universal Power and Environment Interface Unit (UPEU) for the BBU3900 converts -48 V DC or +24 V DC power into +12 V DC.
Panel The UPEU is classified into three types: Universal Power and Environment Interface Unit Type A (UPEUa), Universal Power and Environment Interface Unit Type B (UPEUb), and Universal Power and Environment Interface Unit Type C (UPEUc). The UPEUa and UPEUc convert -48 V DC power into +12 V DC, and the UPEUb converts +24 V DC power into +12 V DC. Figure 4-24, Figure 4-25, and Figure 4-26 show the panels of the UPEUa, UPEUb, and UPEUc, respectively. Figure 4-24 UPEUa panel
(1) BBU power switch
(2) 7W2 connector
Figure 4-25 UPEUb panel
(1) BBU power switch
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(2) 7W2 connector
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Figure 4-26 UPEUc panel
(1) BBU power switch
(2) 3V3 connector
NOTE
The UPEUc has a silkscreen "UPEUc" indicating its board type on it, whereas the UPEUa and UPEUb do not have such a silkscreen indicating their board types. The UPEUa and UPEUb, however, can be distinguished by the silkscreens "-48 V" and "+24 V" on them.
Functions The UPEU performs the following functions: l
Converts -48 V DC or +24 V DC power into +12 V DC, which is the operating voltage of the boards.
l
Provides two ports with each transmitting one RS485 signal and two ports with each transmitting four Boolean signals. The Boolean signals can only be dry contact or Open Collector (OC) signals.
Table 4-36 describes the specifications of the UPEU. Table 4-36 Specifications of the UPEU
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Board
Output Power
Backup Mode
UPEUa
The output power of a UPEUa is 300 W.
1+1 backup
UPEUc
The output power of a UPEUc is 360 W, and the output power of two UPEUc boards is 650 W.
1+1 backup
UPEUa+UPEUc
The total output power of a UPEUa and a UPEUc is 360 W.
-
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BTS3900L (Ver.C) Hardware Description
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After the UPEUc is replaced by the UPEUa, the base station power consumption data monitored by the network management system will change. The power consumption data does not only depend on the output power but also on the data collection method. The UPEUc and UPEUa use different methods for power consumption data collection. Therefore, the decrease in the power consumption shown in the network management system after the UPEUc is replaced by the UPEUa does not necessarily reflect the actual decrease of power consumption.
Indicator The UPEU has one indicator, which indicates the operating status of the UPEU. Table 4-37 describes the indicator. Table 4-37 Indicator on the UPEU panel Silkscreen
Color
Status
Description
RUN
Green
Steady on
The board is functional.
Steady off
There is no power supply, or the board is faulty.
Port The UPEU provides two RS485 signal ports, each transmitting one RS485 signal, and two Boolean signal ports, each transmitting four Boolean signals. Figure 4-27 shows the slots in the BBU. Figure 4-27 Slots in the BBU
Table 4-38 describes the ports on the panel of the UPEU. Table 4-38 Description on the ports
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Slot
Silkscree n
Connecto r
Quantity
Description
Slot 19
+24 V or -48 V
3V3
1
Introducing +24 V or -48 V DC power
EXTALM0
RJ45 connector
1
Port for Boolean inputs 0 to 3
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Slot
Slot 18
Silkscree n
Connecto r
Quantity
Description
EXTALM1
RJ45 connector
1
Port for Boolean inputs 4 to 7
MON0
RJ45 connector
1
Port for RS485 input 0
MON1
RJ45 connector
1
Port for RS485 input 1
+24 V or -48 V
3V3
1
Introducing +24 V or -48 V DC power
EXTALM0
RJ45 connector
1
Port for Boolean inputs 0 to 3
EXTALM1
RJ45 connector
1
Port for Boolean inputs 4 to 7
MON0
RJ45 connector
1
Port for RS485 input 0
MON1
RJ45 connector
1
Port for RS485 input 1
UEIU The Universal Environment Interface Unit (UEIU) of the BBU3900 transmits monitoring signals and alarm signals from external devices to the main control board.
Panel Figure 4-28 shows the panel of the UEIU. Figure 4-28 Panel of the UEIU
Functions The UEIU performs the following functions: Issue 07 (2012-02-25)
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l
Provides two ports with each transmitting one RS485 signal.
l
Provides two ports with each transmitting four Boolean signals. The Boolean signals can only be dry contact or OC signals.
l
Transmits monitoring signals and alarm signals from external devices to the main control board.
Port The UEIU is configured in slot 18 and provides two RS485 signal ports, each transmitting one RS485 signal, and two Boolean signal ports, each transmitting four Boolean signals. Table 4-39 describes the ports on the panel of the UEIU. Table 4-39 Ports on the panel of the UEIU Slot
Silkscre en
Connect or
Quanti ty
Description
Slot 18
EXTALM0
RJ45 connector
1
Port for Boolean inputs 0 to 3
EXTALM1
RJ45 connector
1
Port for Boolean inputs 4 to 7
MON0
RJ45 connector
1
Port for RS485 input 0
MON1
RJ45 connector
1
Port for RS485 input 1
USCU This section describes the Universal Satellite card and Clock Unit (USCU).
Specifications of the USCU The USCU is classified into three types, as shown in Table 4-40. Table 4-40 Specifications of the USCU Board
Mode
Supported Satellite Card
USCUb11
LTE
N/A
SRAN USCUb12
GSM
RT single-satellite card
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Board
Mode
Supported Satellite Card
USCUb21
GSM
K161 dual-satellite card
UMTS LTE
Panel There are three types of USCU: USCUb11, USCUb12, and USCUb13, as shown in Figure 4-29 and Figure 4-30. The USCUb11 and USCUb12 have the same exterior. Figure 4-29 USCUb11 and USCUb12 panel
Figure 4-30 USCUb21 panel
(1) GPS port
(2) RGPS port
(3) TOD port
(4) M-1PPS port
(5) BITS port
Functions The USCU has the following functions: l
The USCUb11 provides ports to communicate with the RGPS (for example the reused equipment of the customer) and BITS equipment. It does not support GPS signals.
l
The USCUb12 performs time synchronization or obtains accurate clock signals from the transmission equipment. It does not support RGPS signals.
l
The USCUb21 provides ports to communicate with the BITS and TOD equipment. It supports GPS and GLONASS signals but does not support RGPS signals.
Indicator Table 4-41 and Table 4-43 describe the indicators on the USCU. Issue 07 (2012-02-25)
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Table 4-41 Indicators on the USCU Indicator
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is running properly.
On for 0.125s and off for 0.125s
Software is being loaded to the board, or the board is not configured.
Steady off
The board is running properly, and no alarm is generated.
Steady on
An alarm is generated, and the board must be replaced.
On for 1s and off for 1s
An alarm is generated, and the alarm may be caused by an associated board or port fault. Therefore, you must locate the fault before replacing the board.
Steady on
The serial port for communication between the USCU and the main control board is enabled.
Steady off
The serial port for communication between the USCU and the main control board is disabled.
ALM
ACT
Red
Green
The ALM indicator in GSM mode has different statuses from the ACT indicator on other boards, as listed in Table 4-42. Table 4-42 Indicators on the USCU
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Indicator
Color
Status
Description
ALM
Red
Steady off
The board is running properly, and no alarm is generated.
On for 1s and off for 1s
An alarm is generated, and the alarm may be caused by an associated board or port fault. Therefore, you must locate the fault before replacing the board.
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Table 4-43 Indicators on the TOD port Color
Description
Default Configuration
Green
If the indicator is steady on, the TOD port is configured as an input port.
The green indicator of the TOD0 port is off, and the yellow indicator of the TOD0 port is on.
Yellow
If the indicator is steady on, the TOD port is configured as an output port.
The yellow indicator of the TOD1 port is Off, and the green indicator of the TOD1 port is On.
Port Table 4-44 describes the ports on the USCU. Table 4-44 Ports on the USCU Port
Connector
Description
GPS
SMA coaxial connector
The GPS ports on the USCUb12 and USCUb21 receive GPS signals. The GPS port on the USCUb11 is reserved. It cannot receive GPS signals.
RGPS port
PCB welded wiring terminal
The RGPS port on the USCUb11 receives RGPS signals. The RGPS ports on the USCUb12 and USCUb21 are reserved. They cannot receive RGPS signals.
TOD0 port
RJ45 connector
Receiving or transmitting 1PPS+TOD signals
TOD1 port
RJ45 connector
Receiving or transmitting 1PPS+TOD signals, and receiving TOD signals from the M1000
BITS port
SMA coaxial connector
Receiving BITS clock signals, supporting adaptive input of 2.048 MHz and 10 MHz clock reference source
M-1PPS port
SMA coaxial connector
Receiving 1PPS signals from the M1000
UTRP The Universal Transmission Processing unit (UTRP) is an extended transmission board in the BBU3900. It provides ports connecting to transmission equipment.
Specifications of the UTRP Table 4-45 describes the specifications of the UTRP. Issue 07 (2012-02-25)
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Table 4-45 Specifications of the UTRP Board
Sub-board/Board Type
Port
Mode
UTRP2
UEOC
Two FE/GE optical ports
UMTS
UTRP3
UAEC
Eight ATM over E1/ T1 ports
UMTS
UTRP4
UIEC
Eight IP over E1/T1 ports
UMTS
UTRPb4
Without a sub-board
Four TDM over E1/ T1 ports
GSM
UTRPb4
Without a sub-board
Eight IP over E1/T1 ports
LTE
UTRP6
UUAS
One unchannelized STM-1/OC-3 port
UMTS
UTRP9
UQEC
Four FE/GE electrical ports
UMTS
Panel Figure 4-31 shows the panel of the UTRP2. Figure 4-31 Panel of the UTRP2 (with two optical ports)
Figure 4-32 shows the panel of the UTRP3 and UTRP4. Figure 4-32 Panel of the UTRP3 and UTRP4 (with eight E1/T1 channels)
Figure 4-33 shows the panel of the UTRPb4 in GSM mode. Issue 07 (2012-02-25)
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Figure 4-33 Panel of the UTRPb4 (GSM)
Figure 4-34 shows the panel of the UTRPb4 in LTE mode. Figure 4-34 Panel of the UTRPb4 (LTE)
Figure 4-35 shows the panel of the UTRP6. Figure 4-35 Panel of the UTRP6 (with one STM-1 channel)
Figure 4-36 shows the panel of the UTRP9. Figure 4-36 Panel of the UTRP9 (with four electrical ports)
Functions The UTRP performs the following functions: l
Provides extended E1/T1 ports to connect to transmission equipment, supporting ATM, TDM, and IP.
l
Provides electrical and optical transmission ports to connecting to transmission equipment.
l
Supports cold backup.
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Remark The GTMUa cannot be used together with the UTRPc.
Indicator Table 4-46 describes the indicators on the panel of the UTRP. Table 4-46 Indicators on the panel of the UTRP Silkscreen
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is working as configured.
On for 0.125s and off for 0.125s
The board is not configured or data is being loaded.
On for 2s and off for 2s
The board works in offline mode or is being tested.
On or blinking quickly
An alarm is reported, indicating a fault in the board.
Steady off
There is no fault.
On for 2s and off for 2s
A minor alarm is reported.
On for 1s and off for 1s
A major alarm is reported.
On for 0.125s and off for 0.125s
A critical alarm is reported.
Steady on
The board serves as an active board.
Steady off
The board serves as a standby board.
ALM
ACT
Red
Green
The RUN and ALM indicators on the UTRPb4 board in GSM mode have different status from the RUN and ALM indicators on other boards, as listed in Table 4-48. Issue 07 (2012-02-25)
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Table 4-47 Indicators on the panel of the UTRP Silkscreen
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is faulty.
On for 1s and off for 1s
The board is working as configured.
On for 2s and off for 2s
The board is out of communication with the main control board.
On or blinking quickly
An alarm is reported, indicating a fault in the board.
Steady off
There is no fault.
ALM
Red
The ACT indicator on the UTRPb4 board in GSM mode has different status from the ACT indicator on other boards, as listed in Table 4-48. Table 4-48 Status of the ACT indicator on the UTRPb4 board in GSM mode Status of the ACT Indicator
Before the Configuration Takes Effect
Steady on
None of the E1 ports or more than one E1 ports in GSM mode are functional.
On for 0.125s and off for 0.125s
Only one E1 port in GSM mode is functional.
Each Ethernet port on the UTRP2 and UTRP9 corresponds to two indicators indicating the status of the current links, as listed in Table 4-49. Table 4-49 Indicators for the Ethernet ports on the UTRP2 and UTRP9
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Silkscreen
Color
Status
Description
LINK
Green
Steady on
The link is connected properly.
Steady off
The link is not connected properly.
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Silkscreen
Color
Status
Description
ACT
Orange
Blinking
Data is being transmitted or received on the link.
Steady off
No data is being transmitted or received on the link.
Port Table 4-50 describes the ports on the UTRP2. Table 4-50 Ports on the panel of the UTRP2 (with 2 optical ports) Silkscreen
Port Type
Quantity
Connector
FE/GE0 to FE/GE1
FE/GE optical port
2
SFP connector
The UTRP3, UTRP4, and UTRPb4 have the same ports, as listed in Table 4-51. Table 4-51 Ports on the panel of the UTRP3, UTRP4, and UTRPb4 (with 8 E1/T1 ports) Silkscreen
Port Type
Quantity
Connector
E1/T1 port
E1/T1 port
2
DB26 connector
Table 4-52 lists the ports on the UTRP6. Table 4-52 Ports on the panel of the UTRP6 (with one STM-1 channel) Silkscreen
Port Type
Quantity
Connector
STM-1/OC-3
STM-1/OC-3
1
SFP connector
Table 4-53 lists the ports on the UTRP9. Table 4-53 Ports on the panel of the UTRP9 (with four electrical ports)
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Silkscreen
Port Type
Quantity
Connector
FE/GE0 to FE/GE3
FE/GE electrical port
4
RJ45 connector
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DIP Switch There is no DIP switch on the UTRP2, UTRP6, and UTRP9. There are three DIP switches on the UTRP3, UTRP4, and UTRPb4. SW1 and SW2 are used to set whether to ground the receiver end of the E1, whereas SW3 is used to set the impedance of the E1 cable. Figure 4-37 shows the DIP switches on the UTRP3 and UTRP4. Figure 4-38 shows the DIP switches on the UTRPb4. Figure 4-37 DIP switches on the UTRP3 and UTRP4
Figure 4-38 DIP switches on the UTRPb4
Table 4-54, Table 4-55, and Table 4-56 list the settings of the DIP switches on the UTRP. Table 4-54 Settings of SW1 on the UTRP DIP Switch SW1
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DIP Status
Description
1
2
3
4
OFF
OFF
OFF
OFF
Balanced
ON
ON
ON
ON
Unbalanced
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DIP Switch
DIP Status 1
Description 2
3
4
Others
Unavailable
Table 4-55 Settings of SW2 on the UTRP DIP Switch
DIP Status
Description
1
2
3
4
SW2
OFF
OFF
OFF
OFF
Balanced
ON
ON
ON
ON
Unbalanced
Others
Unavailable
CAUTION SW1 and SW2 are set to OFF by default. SW1 corresponds to No.4 to No.7 E1 channels. SW2 corresponds to No.0 to No.3 E1 channels.
Table 4-56 Settings of SW3 on the UTRP DIP Switch
DIP Status 1
2
3
4
SW3
OFF
OFF
ON
ON
T1
ON
ON
OFF
OFF
The E1 resistance is set to 120 ohm.
ON
ON
ON
ON
The E1 resistance is set to 75 ohm.
Description
Others
Unavailable
UBRI The Universal Baseband Radio Interface Board (UBRI) provides extended CPRI optical or electrical ports to implement convergence, distribution, and multi-mode transmission on the CPRI. Issue 07 (2012-02-25)
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Panel Figure 4-39 shows the panel of the UBRI. Figure 4-39 UBRI panel
Functions The UBRI has the following functions: l
Provides extended CPRI electrical or optical ports.
l
Performs convergence, distribution, and multi-mode transmission on the CPRI.
Indicator Table 4-57 describes the indicators on the panel of the UBRI. Table 4-57 Indicators on the panel of the UBRI Indicator
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the board is faulty.
Steady off
There is no power supply, or the board is in the alarm status.
On for 1s and off for 1s
The board is functioning and communicating with the main control board properly.
On for 2s and off for 2s
The board is out of communication with the main control board.
ON or blinking at a high frequency
The board is in the alarm status.
Steady off
No alarm is generated.
Steady on
The board works properly.
ALM
ACT
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Red
Green
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Indicator
Color
Status
Description
Steady off
The board is not working.
The UBRI provides six indicators indicating the status of the CRRI links. The indicators are above the SFP ports. Table 4-58 describes the meanings of the indicators. Table 4-58 Indicators indicating the status of the CPRI ports Label
Color
Status
Description
CPRIx
Red/green
Steady green
The CPRI port is configured and the CPRI link is functioning properly.
Steady red
The CPRI port is configured but the optical module cannot be detected.
Port Table 4-59 describes the ports on the panel of the UBRI. Table 4-59 Ports on the panel of the UBRI Label
Connector
Quantity
Description
CPRI0 to CPRI5
SFP female connector
6
Connecting the BBU and the RF module
4.2 DRFU Double radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GO scenario.
Panel Figure 4-40 shows the DRFU panel.
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Figure 4-40 DRFU panel
Function The DRFU performs modulation, demodulation, data processing, and combining and dividing for baseband signals and radio frequency (RF) signals. In addition, the DRFU provides the following functions: l
Converts the direct frequency conversion technology, modulates the baseband signals for the GSM TX band. After filtering and amplification, the baseband signals are transmitted to the antenna system through the duplexer.
l
Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to a baseband unit (BBU) for further processing.
l
Performs power control.
l
Performs reverse power detection.
l
Synthesizes frequencies and tests loops.
l
Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
A DRFU consists of a high-speed interface unit, signal processing unit, power amplifier, and dual-duplexer. Figure 4-41 shows the logical structure of the DRFU.
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Figure 4-41 Logical structure of the DRFU
Indicators There are six indicators on the DRFU panel, indicating its operating status. Table 4-60 describes the status of the indicators on the DRFU. Table 4-60 Status of the Indicators on the DRFU Indicator
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
Steady on
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
Steady on
The module works properly with the TX channel enabled.
ALM
ACT
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Red
Green
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Indicator
VSWR
CPRI0
CPRI1
Color
Red
Red and green
Red and green
Status
Description
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
Steady on
The VSWR alarm is generated on the ANT1 port.
Blinking (on for 1s and off for 1s)
The VSWR alarm is generated on the ANT2 port.
Blinking (on for 0.125s and off for 0.125s)
The VSWR alarm is generated on the ANT1 and ANT2 ports.
Off
No VSWR alarm is generated.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The small form-factor pluggable (SFP) module is not properly installed, or the optical module is powered off.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-61 describes the ports on the DRFU. Table 4-61 Ports on the DRFU
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Port Type
Silkscreen on the Port
Connector Type
Description
Port for transceiving RF signals
ANT1
DIN female connector
Connects to the antenna system.
ANT2
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Port Type
Silkscreen on the Port
Connector Type
Description
CPRI port
CPRI0
SFP female connector
Connects to a lower-level radio frequency unit (RFU) during the cascading.
CPRI1 Interconnecti on port for receiving RF signals
Power supply port
RX1/IN
Connects to the BBU, or an upper-level RFU in the cascading mode. QMA female connector
Receives the diversity signals in the antenna channel 1.
RX1/OUT
Transmits the diversity signals in the antenna channel 1.
RX2/IN
Receives the diversity signals in the antenna channel 2.
RX2/OUT
Transmits the diversity signals in the antenna channel 2.
PWR
3V3 power connector
Feeds in power.
4.3 GRFU GSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GO scenario.
Panel GRFUs fall into three types: GRFU V1, GRFU V2, and GRFU V2a. The three types of GRFUs can be identified by their labels. As shown in Figure 4-42, there is "V0" or "V1" on the label of a GRFU V1, there is "V2" on the label of a GRFU V2, and there is "V2a" on the label of a GRFU V2a.
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Figure 4-42 GRFU panel
Function A GRFU performs modulation and demodulation between baseband signals and radio frequency (RF) signals, processes data, and combines and divides signals. In addition,the GRFU has the following functions: l
Converts the direct frequency conversion technology, modulates the baseband signals for the GSM TX band. After filtering and amplification, the baseband signals are transmitted to the antenna system through the duplexer.
l
Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After an amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the baseband unit (BBU) for further processing.
l
Provides power control and VSWR detection.
l
Performs reverse power detection.
l
Synthesizes frequencies and tests loops.
l
Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principles A GRFU consists of a high-speed interface unit, signal processing unit, power amplifier, and dual-duplexer. Figure 4-43 shows the logical structure of the GRFU. Issue 07 (2012-02-25)
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Figure 4-43 Logical structure of the GRFU
Indicators The six indicators on the GRFU panel indicate the operating status of the GRFU. Table 4-62 describes the indicators on the GRFU panel. Table 4-62 Indicators on the GRFU Panel Indicato r
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
Steady on
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
Steady on
The module works properly with the TX channel enabled.
ALM
ACT
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Red
Green
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Indicato r
VSWR
CPRI0
CPRI1
Color
Red
Red and green
Red and green
Status
Description
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
Steady on
The VSWR alarm is generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
A VSWR alarm is generated on the ANT_RXB port.
Blinking (on for 0.125s and off for 0.125s)
The VSWR alarm is generated on the ANT_TX/RXA and ANT_RXB port.
Off
No VSWR alarm is generated.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The small form-factor pluggable (SFP) module is not properly installed, or the optical module is powered off.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-63 describes the ports on the GRFU panel. Table 4-63 Ports on the GRFU Panel
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Port Type
Silkscree n
Connector Type
Description
RF port
ANT_RX B
DIN connector
Connects to the antenna system
ANT_TX/ RXA
DIN connector
Connects to the antenna system
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Port Type
Silkscree n
Connector Type
Description
CPRI port
CPRI0
SFP female connector
Connects to the BBU, or an upper-level RFU in the cascading mode
CPRI1
SFP female connector
Connects to a lower-level RFU during the cascading
Interconnectio n port for receiving RF signals
RX_INB
QMA female connector
Receives the diversity signals
RX_OUT A
QMA female connector
Transmits the main signals
Power supply port
PWR
3V3 power connector
Feeds in power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
4.4 WRFU WCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UO scenario.
Panel Figure 4-44 shows the panel of the WRFU.
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Figure 4-44 Panel of the WRFU
Functions The functions of the WRFU are as follows: l
Implements the direct frequency conversion technique in the transmit channel. The baseband signals are modulated to WCDMA RF signals. After being filtered and amplified or being combined, the RF signals are transmitted through the duplex filter to the antenna for radio transmission.
l
Receives UL RF signals from the antenna system and then down-converts the received signals to IF signals. After amplification, analog-to-digital conversion, digital downconversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the BBU for further processing.
l
Implements power control and Voltage Standing Wave Ratio (VSWR) detection
l
Provides reverse power detection
l
Provides frequency synthesis and loopback test
l
Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms
l
Supports 40 W (2 carriers) and 80 W (4 carriers) power outputs
Principle The WRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit. Figure 4-45 shows the principle of the WRFU. Issue 07 (2012-02-25)
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Figure 4-45 Principle of the WRFU
LEDs Table 4-64 describes the LEDs on the WRFU panel. Table 4-64 LEDs on the MRFU panel Label RUN
ALM
ACT
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Color Green
Red
Green
State
Description
ON
There is power supply, but the module breaks down or is verifying the software version.
OFF
The module works properly.
Blinking (on for 1s and off for 1s)
The module is loading software.
Blinking (on for 0.125s and off for 0.125s)
There is no power supply, or the module breaks down.
ON
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
OFF
No alarm (excluding VSWR alarms) is generated.
ON
The module works properly with the TX channel enabled.
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
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Label VSWR
CPRI0
CPRI1
Color Red
Red/Green
Red/Green
State
Description
ON (red)
VSWR-related alarms are generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
VSWR-related alarms are generated on the ANT/RXB port.
Blinking (on for 0.125s and off for 0.125s)
VSWR-related alarms are generated on both the ANT_TX/RXA and ANT/ RXB ports.
OFF (red)
No VSWR alarm is generated.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
OFF
The SFP is out of position, or the optical module is powered off.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
OFF
The SFP is out of position, or the optical module is powered off.
Ports Table 4-65 describes the ports on the WRFU panel. Table 4-65 Ports on the WRFU panel Port
Label
Connector
Description
RF port
ANT_RXB
DIN connector
RF RX port for connecting to the antenna system
ANT_TX/ RXA
DIN connector
RF TX/RX port for connecting to the antenna system
CPRI0
SFP female connector
Connected to the BBU, or the upper-level WRFU during the cascading
CPRI1
SFP female connector
Connected to the lower-level WRFU during the cascading
CPRI
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Port
Label
Connector
Description
Interconnectio n port for RF RX signals
RX_INB
QMA female connector
Receives the diversity signals.
RX_OUTA
QMA female connector
Transmits the main signals.
Power supply socket
PWR
3V3 power connector
Feeding power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
4.5 WRFUd WCDMA Radio Frequency Unit Type D (WRFUd) is an RF unit of WCDMA radio filter and applies to UO scenario.
Panel Figure 4-46 shows a WRFUd panel. Figure 4-46 WRFUd panel
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Functions The functions of the WRFUd are as follows: l
Implements the direct frequency conversion technique in the TX channel. The baseband signals are modulated to WCDMA RF signals. After being filtered and amplified or being combined, the RF signals are transmitted through the duplex filter to the antenna for radio transmission.
l
Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the BBU for further processing.
l
Implements power control and Voltage Standing Wave Ratio (VSWR) detection.
l
Performs reverse power detection.
l
Synthesizes frequencies and loop tests.
l
Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principle The WRFUd consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 4-47 shows the logical structure of the WRFUd. Figure 4-47 Logical structure of the WRFUd
LEDs Table 4-66 describes the LEDs on the WRFUd panel.
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Table 4-66 LEDs on the WRFUd panel LED
Color
Status
Description
RUN
Green
On
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Off
The module is loading software.
Blinking (on for 0.125s and off for 0.125s)
There is no power supply, or the module breaks down.
On
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
On
The module works properly with the TX channel enabled.
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
On
VSWR-related alarms are generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
VSWR-related alarms are generated on the ANT_TX/RXB port.
Blinking (on for 0.125s and off for 0.125s)
VSWR-related alarms are generated on both the ANT_TX/RXA and ANT_TX/ RXB ports.
Off
No VSWR-related alarm is generated.
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
ALM
ACT
VSWR
CPRI0
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Red
Green
Red
Red and green
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LED
Color
Status
Description
CPRI1
Red and green
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-67 describes the ports on the WRFUd panel. Table 4-67 Ports on the WRFUd panel Port
Label
Connector
Description
RF port
ANT_TX/ RXB
DIN connector
RF TX/RX port for connecting to the antenna system
ANT_TX/ RXA
DIN connector
CPRI0
SFP female connector
Port for connecting to the BBU, or the upper-level WRFUd during the cascading
CPRI1
SFP female connector
Port for connecting to the lower-level WRFUd during the cascading
Interconnectio n port for receiving RF signals
RX_INB
QMA female connector
Input port of diversity signals in the antenna channel
RX_OUTA
QMA female connector
Output port of diversity signals in the antenna channel
Power supply socket
PWR
3V3 power connector
Socket for feeding power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
CPRI port
4.6 MRFU Multi-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.
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Panel MRFUs fall into three types: MRFU V1, MRFU V2, and MRFU V2a. The three types of MRFUs can be identified by their labels. As shown in Figure 4-48, there is "V0" or "V1" on the label of a MRFU V1, there is "V2" on the label of a MRFU V2, and there is "V2a" on the label of a MRFU V2a. Figure 4-48 MRFU Panel
Function The functions of MRFU are as follows: l
Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals and then transmits the signals to the antenna through the duplexer.
l
Receives radio frequency (RF) signals from the antenna system, down-converts the signals to IF signals, and then transmits them to the baseband unit (BBU) after an amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC).
l
Performs power control.
l
Provides Voltage Standing Wave Ration (VSWR) detection.
l
Supplies power to the tower mounted amplifier (TMA) and controls the remote electrical tilt (RET) antenna.
l
Controls Digital Predistortion (DPD) based on feedback signals.
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l
Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principles A MRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplexer. Figure 4-49 shows the principle of the MRFU. Figure 4-49 Principle of the MRFU
Indicators Table 4-68 describes the indicators on the MRFU. Table 4-68 Indicators on the MRFU Indicato r
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
Steady on
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
ALM
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Red
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Indicato r
ACT
VSWR
CPRI0
CPRI1
Color
Green
Red
Red and green
Red and green
Status
Description
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
Steady on
The MRFU works properly with the TX channel enabled.
Blinking (on for 1s and off for 1s)
The MRFU works properly with the TX channel disabled.
Steady on
The VSWR alarm is generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
A VSWR alarm is generated on the ANT_RXB port.
Blinking (on for 0.125s and off for 0.125s)
The VSWR alarm is generated on the ANT_TX/RXA and ANT_RXB port.
Off
No VSWR alarm is generated.
Steady green
The CPRI link is available.
Steady red
The optical module fails to receive signals.
Blinking red (on for 1s and off for 1s)
The reception of the optical module is abnormal, and an alarm is generated.
Off
The small form-factor pluggable (SFP) module is not properly installed, or the optical module is powered off.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-69 describes the ports on the MRFU.
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Table 4-69 Port on the MRFU Port Type RF port
Silkscreen
Connector Type
Description
ANT_RXB
DIN connector
RF RX port for connecting to the antenna system
ANT_TX/ RXA
DIN connector
RF TX/RX port for connecting to the antenna system
CPRI0
SFP female connector
Connects to the BBU
CPRI1
SFP female connector
Connects to the BBU
Interconnectio n port for receiving RF signals
RX_INB
QMA female connector
Receives the diversity signals
RX_OUTA
QMA female connector
Transmits the main signals
Power supply port
PWR
3V3 power connector
Feeding -48 V DC power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
CPRI port
4.7 MRFUd Multi-Mode Radio Frequency Unit Type D (MRFUd) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.
Panel Figure 4-50 shows a MRFUd panel.
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Figure 4-50 MRFUd panel
Functions The functions of the MRFUd are as follows: l
Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals or combines the signals, and then transmits the signals to the antenna through the duplexer.
l
Receives RF signals from the antenna system, down-converts the signals to IF signals, and performs amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and digital automatic gain control (DAGC), and then transmits the signals to the BBU for further processing.
l
Performs power control.
l
Provides Voltage Standing Wave Ration (VSWR) detection.
l
Supplies power to the TMA and controls the RET antenna.
l
Controls Digital Predistortion (DPD) based on feedback signals.
l
Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principle The MRFUd consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 4-51 shows the logical structure of the MRFUd. Issue 07 (2012-02-25)
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Figure 4-51 Logical structure of the MRFUd
LEDs Table 4-70 describes the LEDs on the MRFUd panel. Table 4-70 LEDs on the MRFUd panel LED
Color
Status
Description
RUN
Green
On
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
On
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
On
The module works properly with the TX channel enabled.
ALM
ACT
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Red
Green
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LED
VSW R
CPRI 0
CPRI 1
Color
Red
Red and green
Red and green
Status
Description
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
On
VSWR-related alarms are generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
VSWR-related alarms are generated on the ANT_TX/RXB port.
Blinking (on for 0.125s and off for 0.125s)
VSWR-related alarms are generated on both the ANT_TX/RXA and ANT_TX/ RXB ports.
Off
No VSWR-related alarm is generated.
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-71 describes the ports on the MRFUd panel. Table 4-71 Ports on the MRFUd panel Port
Label
Connector
Description
RF port
ANT_TX/ RXB
DIN connector
RF TX/RX port for connecting to the antenna system
ANT_TX/ RXA
DIN connector
CPRI0
SFP female connector
CPRI port
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Port for connecting to the BBU
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Port
Label
Connector
Description
CPRI1
SFP female connector
Port for connecting to the BBU
Interconnectio n port for receiving RF signals
RX_INB
QMA female connector
Input port for diversity RX
RX_OUTA
QMA female connector
Output port for main RX
Power supply socket
PWR
3V3 power connector
Socket for feeding -48 V DC power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
4.8 MRFUe Multi-Mode Radio Frequency Unit Type E (MRFUe) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.
Panel Figure 4-52 shows a MRFUe panel. Figure 4-52 MRFUe panel
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Functions The functions of the MRFUe are as follows: l
Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals or combines the signals, and then transmits the signals to the antenna through the duplexer.
l
Receives RF signals from the antenna system, down-converts the signals to IF signals, and performs amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and digital automatic gain control (DAGC), and then transmits the signals to the BBU for further processing.
l
Performs power control.
l
Provides Voltage Standing Wave Ration (VSWR) detection.
l
Supplies power to the TMA and controls the RET antenna.
l
Controls Digital Predistortion (DPD) based on feedback signals.
l
Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principle The MRFUe consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 4-53 shows the logical structure of the MRFUe. Figure 4-53 Logical structure of the MRFUe
LEDs Table 4-72 describes the LEDs on the MRFUe panel.
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Table 4-72 LEDs on the MRFUe panel LE D
Color
Status
Description
RU N
Green
On
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
On
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
On
The module works properly with the TX channel enabled.
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
On
VSWR-related alarms are generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
VSWR-related alarms are generated on the ANT/RXB port.
Blinking (on for 0.125s and off for 0.125s)
VSWR-related alarms are generated on both the ANT_TX/RXA and ANT/RXB ports.
Off
No VSWR-related alarm is generated.
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
AL M
ACT
VS WR
CPR I0
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Red
Green
Red
Red and green
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LE D
Color
Status
Description
CPR I1
Red and green
On (green)
The CPRI link is available.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-73 describes the ports on the MRFUe panel. Table 4-73 Ports on the MRFUe panel Port
Label
Connector
Description
RF port
ANT/ RXB
DIN connector
RF RX port for connecting to the antenna system
ANT_T X/RXA
DIN connector
RF TX/RX port for connecting to the antenna system
CPRI0
SFP female connector
Port for connecting to the BBU
CPRI1
SFP female connector
Port for connecting to the BBU
Interconnection port for receiving RF signals
RX_IN B
QMA female connector
Input port for diversity RX
RX_OU TA
QMA female connector
Output port for main RX
Power supply socket
PWR
3V3 power connector
Socket for feeding -48 V DC power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
CPRI port
4.9 MRFU V3 Multi-Mode Radio Frequency Unit V3 (MRFU V3) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.
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Panel Figure 4-54 shows a MRFU V3 panel. Figure 4-54 MRFU V3 Panel
Function The functions of MRFU V3 are as follows: l
Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals and then transmits the signals to the antenna through the duplexer.
l
Receives radio frequency (RF) signals from the antenna system, down-converts the signals to IF signals, and then transmits them to the baseband unit (BBU) after an amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Automatic Gain Control (AGC).
l
Performs power control.
l
Provides Voltage Standing Wave Ration (VSWR) detection.
l
Performs reverse power detection.
l
Synthesizes frequencies.
l
Controls Digital Predistortion (DPD) based on feedback signals.
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l
Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from loss of synchronization, and detects alarms.
Principles A MRFU V3 consists of the high-speed interface unit, signal processing unit, power amplifier, and duplexer. Figure 4-55 shows the principle of the MRFU V3. Figure 4-55 Principle of the MRFU V3
Indicators Table 4-74 describes the indicators on the MRFU V3. Table 4-74 Indicators on the MRFU V3 Indica tor
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the module breaks down or is verifying the software version.
Blinking (on for 1s and off for 1s)
The module works properly.
Blinking (on for 0.125s and off for 0.125s)
The module is loading software.
Off
There is no power supply, or the module breaks down.
Steady on
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
ALM
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Red
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Indica tor
ACT
VSWR
CPRI0
CPRI1
Color
Green
Red
Red and green
Red and green
Status
Description
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
Steady on
The module works properly with the TX channel enabled.
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
Steady on
The VSWR alarm is generated on the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
A VSWR alarm is generated on the ANT/ RXB port.
Blinking (on for 0.125s and off for 0.125s)
The VSWR alarm is generated on the ANT_TX/RXA and ANT/RXB port.
Off
No VSWR alarm is generated.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Steady green
The CPRI link is available.
Steady red
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is not properly installed, or the optical module is powered off.
Ports Table 4-75 describes the ports on the MRFU V3.
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Table 4-75 Port on the MRFU V3 Port Type
Silkscreen
Connector Type
Description
Port for transceiving RF signals
ANT_RXB
DIN connector
Connects to the antenna system.
ANT_TX/ RXA
DIN connector
CPRI port
CPRI0
SFP female connector
Connects to the BBU.
CPRI1
SFP female connector
Connects to the BBU.
Interconnectio n port for receiving RF signals
RX_INB
QMA female connector
Receives the diversity signals.
RX_OUTA
QMA female connector
Transmits the main signals.
Power supply port
PWR
3V3 power connector
Feeds in power.
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning.
4.10 LRFU LTE Radio Frequency Unit (LRFU) is an RF unit of LTE FDD (Frenquency Division Duplex) and applies to LTE Only scenario.
Panel Figure 4-56 shows the panel of the LRFU.
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Figure 4-56 Panel of the LRFU
Functions The LRFU processes uplink and downlink services and controls and monitors internal boards or modules. Figure 4-57 shows the logical structure of the LRFU. Figure 4-57 Logical structure of the LRFU
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LEDs Table 4-76 describes the LEDs on the panel of the LRFU. Table 4-76 LEDs on the LRFU Label
Color
Status
Description
RUN
Green
On
There is power supply, but the module breaks down or is verifying the software version.
Off
The module works properly.
Blinking (on for 1s and off for 1s)
The module is loading software.
Blinking (on for 0.125s and off for 0.125s)
There is no power supply, or the module breaks down.
On
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
On
The module works properly (TX channel enabled).
Blinking (on for 1s and off for 1s)
The module is running (TX channel disabled).
On (red)
A VSWR-related alarm is generated at the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
A VSWR-related alarm is generated at the ANT_TX/RXB port.
Blinking (on for 0.125s and off for 0.125s)
A VSWR-related alarm is generated at the ANT_TX/RXA and ANT_TX/ RXB ports.
Off (red)
No VSWR alarm is generated.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
ALM
ACT
VSWR
CPRI0
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Red
Green
Red
Red/Green
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Label
CPRI1
Color
Red/Green
Status
Description
Off
The SFP module is out of position, or the optical module is powered off.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is out of position, or the optical module is powered off.
Port Table 4-77 describes the ports on the panel of the LRFU. Table 4-77 Ports on the panel of the LRFU Port
Label
Connector
Description
RF port
ANT_T X/RXB
DIN connector
RF TX/RX port for connecting to the antenna system
ANT_T X/RXA
DIN connector
CPRI0
SFP female connector
Used for the connection to the BBU. CPRI0 port and CPRI1 port work in mutual backup mode.
CPRI1
SFP female connector
Used for the connection to the BBU. CPRI1 port and CPRI0 port work in mutual backup mode.
Power supply socket
PWR
3V3 power connector
Used for feeding -48 V DC input power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
CPRI port
4.11 LRFUe LTE Radio Frequency Unit Type E (LRFUe) is an RF unit of LTE FDD (Frenquency Division Duplex) and applies to LO scenario.
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Panel Figure 4-58 shows the panel of the LRFUe. Figure 4-58 Panel of the LRFUe
Functions The LRFUe processes uplink and downlink services and controls and monitors internal boards or modules. Figure 4-59 shows the logical structure of the LRFUe.
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Figure 4-59 Logical structure of the LRFUe
LEDs Table 4-78 describes the LEDs on the panel of the LRFUe. Table 4-78 LEDs on the LRFUe Label
Color
Status
Description
RUN
Green
On
There is power supply, but the module breaks down or is verifying the software version.
Off
The module works properly.
Blinking (on for 1s and off for 1s)
The module is loading software.
Blinking (on for 0.125s and off for 0.125s)
There is no power supply, or the module breaks down.
On
Alarms (excluding VSWR alarms) are generated, and the module must be replaced.
Blinking (on for 1s and off for 1s)
Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.
Off
No alarm (excluding VSWR alarms) is generated.
On
The module works properly with the TX channel enabled.
ALM
ACT
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Red
Green
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Label
VSWR
CPRI0
CPRI1
Color
Red
Red/Green
Red/Green
Status
Description
Blinking (on for 1s and off for 1s)
The module works properly with the TX channel disabled.
On (red)
A VSWR-related alarm is generated at the ANT_TX/RXA port.
Blinking (on for 1s and off for 1s)
A VSWR-related alarm is generated at the ANT_TX/RXB port.
Blinking (on for 0.125s and off for 0.125s)
A VSWR-related alarm is generated at the ANT_TX/RXA and ANT_TX/ RXB ports.
Off (red)
No VSWR alarm is generated.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is out of position, or the optical module is powered off.
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is abnormal, and an alarm is generated.
Blinking red (on for 1s and off for 1s)
The CPRI link has a loss-of-lock error.
Off
The SFP module is out of position, or the optical module is powered off.
Port Table 4-79 describes the ports on the panel of the LRFUe. Table 4-79 Ports on the panel of the LRFUe Port
Label
Connector
Description
RF port
ANT_TX/ RXB
DIN connector
RF TX/RX port for connecting to the antenna system
ANT_TX/ RXA
DIN connector
RX_INB
QMA female connector
Interconnecti on port for Issue 07 (2012-02-25)
Input port for diversity RX
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Port
Label
Connector
Description
receiving RF signals
RX_OUTA
QMA female connector
Output port for main RX
CPRI port
CPRI0
SFP female connector
Used for the connection to the BBU. CPRI0 port and CPRI1 port work in mutual backup mode.
CPRI1
SFP female connector
Used for the connection to the BBU. CPRI1 port and CPRI0 port work in mutual backup mode.
Power supply socket
PWR
3V3 power connector
Used for feeding -48 V DC input power
Monitoring port
MON
RJ45 connector
Port for monitoring and commissioning
4.12 DCDU-11A The DCDU-11A provides DC power to all components in the cabinet.
Functions The DCDU-11A performs the following functions: l
Supports one -48 V DC input of 160 A or two -48 V DC inputs of 80 A.
l
Supports ten -48 V DC outputs of 25 A.
l
Supplies power to all componets in the cabinet.
Panel Figure 4-60 shows a DCDU-11A panel. Figure 4-60 DCDU-11A panel
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Ports Table 4-80 describes wiring terminals, ports, and switches on the DCDU-11A panel. Table 4-80 Wiring terminals, ports, and switches on the DCDU-11A panel Port Type
Label
Connector
Description
Power input wiring terminal
NEG(-)
OT terminal
Negative power input wiring terminal
RTN(+) Power output port
LOAD0 to LOAD9
Positive power input wiring terminal tool-less female power connector (pressfit type)
Power output ports: Ports LOAD0 to LOAD5 supply power to RFU0 to RFU5. Port LOAD6 supplies power to the fan box. Ports LOAD7 and LOAD8 supply power to the BBU. Port LOAD9 serves as a standby output port.
SW0 to SW9
Power switch
-
The power switches SW0 to SW9 control the ports LOAD0 to LOAD9 respectively, controlling the power supplies to the BBU3900, RFUs, and fan box.
4.13 Fan Assembly A fan assembly consists of a fan tray, four fans, and an FMU.
Exterior of the Fan Assembly Figure 4-61 shows the exterior of a fan assembly.
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Figure 4-61 Exterior of the Fan Assembly
(1) Fan
(2) Fan tray
(3) FMU
Function of the Fan Assembly The fan assembly performs the following functions: l
Provides forced ventilation and heat dissipation for the cabinet.
l
Monitors the temperature.
l
Supports fan speed adjustment based on temperature or controlled by the BBU.
l
Stops the fans when the ambient temperature is low.
FMU Figure 4-62 shows the ports on the FMU board. Figure 4-62 Ports on the FMU board
Table 4-81 and Table 4-82 describes the LEDs and Ports on the FMU board. Issue 07 (2012-02-25)
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Table 4-81 LEDs on the FMU board LED
Color
Status
Meaning
RUN
Green
Blinking (on for 0.125s and off for 0.125s)
The unit is functional but fails to communicate with the BBU or upperlevel FMU.
Blinking (on for 1s and off for 1s)
The unit is functional and is communicating with the BBU or upper-level FMU.
Off
There is no power supply, or the module is faulty.
Blinking (on for 1s and off for 1s)
The module is reporting alarms.
Off
No alarm is generated.
ALM
Red
Table 4-82 Ports on the FMU board Port Type
Label
Connector Type
Description
Power port
-48 V
3V3 power connector
The port is used to introduce the -48 V DC power supply.
Sensor port
SENSOR
RJ45 connector
The port is connected to the ELU.
Communicatio n port
COM OUT
RJ45 connector
The port is connected to the lower-level FMU.
COM IN
RJ45 connector
The port is connected to the BBU or upper-level FMU.
4.14 ELU The Electronic Label Unit (ELU) reports the cabinet type information.
Structure Figure 4-63 shows the structure of an ELU.
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Figure 4-63 Structure of an ELU
4.15 GATM The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.
Panel Figure 4-64 shows the GATM panel. Figure 4-64 GATM panel
Function The GATM has the following functions: l
Controls the RET antenna.
l
Supplies power to the TMA.
l
Reports the RET control signal alarms.
l
Monitors the current from the feeder. NOTE
The GATM cannot support the TMA and RET antenna simultaneously.
LED On the GATM there are three LEDs, which indicate the operating status of the GATM. Table 4-83 describes the LEDs on the GATM. Issue 07 (2012-02-25)
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Table 4-83 LEDs on the GATM LED
Color
Status
Description
RUN
Green
ON for 2s and OFF for 2s
The power supply is normal, but the communication with the BBU incurs faults.
ON for 1s and OFF for 1s
The module is functional and communicates with the BBU properly.
OFF
There is no power supply, or the module is faulty.
ON
The AISG link is available.
OFF
The AISG link is unavailable.
Blinking irregularly
The AISG link is in transmission state.
ON
An alarm is generated, such as an overcurrent alarm.
OFF
The module is functional.
ACT
ALM
Green
Red
Port ID There are eight ports on the GATM, of which six are used to supply power to the TMA or transmit the RET control signals, one is used to connect the GATM to the BBU, and one is used as an extended RS485 port. In addition, there is also a -48 V DC power supply socket. Table 4-84 describes the ports and socket on the GATM. Table 4-84 Ports and socket on the GATM
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Port ID
Connector
Function
ANT0 to ANT5
SMA female connector
Providing power and transmitting control signals for the RET antenna
COM1
RJ45 connector
Connecting to the BBU
COM2
RJ45 connector
Serving as an extended RS485 port for connecting to other devices
-48 V
3V3 power connector
Feeding -48 V DC power
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5
BTS3900L Cables
About This Chapter This section describes the BTS3900L cables. The BTS3900L cables consist of the PGND cable, power cable, transmission cable, CPRI cable, signal cable, and RF cable. NOTE
The colors of cables vary according to the countries and areas where Huawei products are delivered. If cables are purchased at local markets, the colors of the cables must comply with the rules and regulations.
5.1 List of BTS3900L Cables The BTS3900L cables include PGND cables, power cables, transmission cables, CPRI electrical cable, signal cables, and RF cables. 5.2 Cable Connections The power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cables in a cabinet must be connected on the basis of separate cable connection principles. 5.3 PGND Cables The PGND cables are used to ensure proper grounding of the cabinet and the modules in the cabinet. 5.4 Power Cable This section describes the power cable of the BTS3900L, which consists of the power cables for the BTS3900L cabinet, BBU3900, Fan box, and RFU. 5.5 Transmission Cable This describes the BTS3900L transmission cable, which consists of the E1 cable, FE cable, FE Optical Cable, Cable Between two FE Electrical Ports, and Cable Between two FE Optical Ports. 5.6 CPRI Electrical Cable The CPRI electrical cable enables high speed communication between the BBU3900 and the RFU. 5.7 Signal Cable This section describes the BTS3900L signal cable, which consists of monitoring signal cable for the FAN unit, monitoring signal cable for the EMU, BBU alarm cable, GPS signal cable, and signal cable for the ELU. 5.8 RF Cable Issue 07 (2012-02-25)
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This section describes the BTS3900L RF cable, which consists of the RF jumper and inter-RFU RF signal cable.
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5.1 List of BTS3900L Cables The BTS3900L cables include PGND cables, power cables, transmission cables, CPRI electrical cable, signal cables, and RF cables.
PGND Cables and Power Cables The PGND cables and power cables are listed in Table 5-1. Table 5-1 PGND cables and power cables Category
Cables to be installed onsite
Cables installed before delivery
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Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installation Position
OT terminal
Ground terminal on the cabinet
OT terminal
External ground bar
5.4.1 Input Power Cables for the Cabinet
OT terminal
NEG (-) and RTN (+) wiring terminals on the DCDU-11A
OT terminal
External power equipment
5.3 PGND Cables
OT terminal
PGND terminals on the modules
OT terminal
PGND terminal inside the cabinet
Power Cable for the RFU
3V3 power connector
PWR port on the RFU
Parallel terminal
Ports LOAD0 to LOAD5 on the DCDU-11A
Power Cable for the Fan Box
3V3 power connector
-48V port on the fan box
Parallel terminal
LOAD6 port on the DCDU-11A
Power Cable for the BBU
3V3 power connector
PWR port on the UPEU
Parallel terminal
LOAD7 port and LOAD8 port on the DCDU-11A
5.3 PGND Cables (PGND cable for the cabinet)
(PGND cable for the modules)
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Category
Cable
Power Cable for the GATM
One End
The Other End
Connector
Installatio n Position
Connector
Installation Position
3V3 power connector
-48V port on the GATM
Parallel terminal
LOAD9 port on the DCDU-11A
Transmission Cables The transmission cables are listed in Table 5-2. Table 5-2 Transmission cables Category
Cables to be installed onsite
Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
5.5.1 E1/T1 Cable
DB26 male connector
E1/T1 port on the GTMU, WMPT, or UTRP
Bare wire
External transmission equipment
5.5.2 FE/GE Cable
RJ45 connector
FE0 port on the GTMU, WMPT, LMPT, or UTRP
RJ45 connector
External transmission equipment
5.5.3 FE/GE Fiber Optic Cable
LC connector
SFP0 port or SFP1 port on the GTMU, WMPT, LMPT, or UTRP
l FC connecto r
External transmission equipment
l SC connecto r l LC connecto r
Cables installed before delivery
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5.5.4 Interconnec tion Cable Between the FE Electrical Ports
RJ45 connector
FE0 port on the GTMU
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RJ45 connector
FE0 port on the WMPT
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Category
Cable
5.5.5 Interconnec tion Cable Between FE Optical Ports
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
LC connector
FE1 port on the GTMU
LC connector
FE1 port on the WMPT
CPRI Electrical Cable The CPRI electrical cable is listed in Table 5-3. Table 5-3 CPRI electrical cable Category
Cables installed before delivery
Cable
5.6 CPRI Electrical Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
SFP20 male connector
Ports CPRI0 to CPRI5 on the GTMU, WBBP, or LMPT
SFP20 male connector
CPRI0 port or CPRI1 port on the RFU
Signal Cables The signal cables are listed in Table 5-4 Table 5-4 Signal cables Category
Cables to be installed onsite
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Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
5.7.3 Monitoring Signal Cable for the EMU
DB9 male connector
RS485 port on the EMU
RJ45 connector
MON1 port on the UPEU or UEIU
5.7.4 BBU Alarm Cable
RJ45 connector
EXT-ALM0 port on the UPEU or UEIU
RJ45 connector
External alarm device
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Category
Cables installed before delivery
Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
5.7.5 GPS Clock Signal Cable
SMA male connector
GPS port on the USCU
Type N female connector
GPS surge protector
5.7.2 Fan Box Cascade Signal Cable
RJ45 connector
COM OUT port on the upper-level fan box
RJ45 connector
COM IN port on the lower-level fan box
5.7.1 Monitoring Signal Cable for the Fan Box
RJ45 connector
COM IN port on the fan box
RJ45 connector
MON0 port on the UPEU or UEIU
5.7.6 Signal Cable for the ELU
RJ45 connector
Electronic Labeling Unit (ELU)
RJ45 connector
SENSOR port on the fan box
5.7.7 Monitoring Signal Cable for the GATM
RJ45 connector
COM1 port on the GATM
RJ45 connector
MON0 port or MON1 port on the UPEU
NOTE The upperlevel fan box communicat es with the BBU directly.
NOTE The lowerlevel fan box communicat es with the BBU by means of the upper-level fan box.
RF Cables The RF cables are listed in Table 5-5.
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Table 5-5 RF cables Category
Cable
One End
The Other End
Connector
Installatio n Position
Connector
Installatio n Position
Cables to be installed onsite
5.8.1 RF Jumper
DIN elbow male connector
RF port on the panel of the RFU
DIN straight male connector
Antenna system
Cables installed before delivery
5.8.2 InterRFU RF Signal Cable
QMA elbow male connector
RX OUT port on the panel of the RFU
QMA elbow male connector
RX IN port on another RFU panel
5.2 Cable Connections The power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cables in a cabinet must be connected on the basis of separate cable connection principles.
5.2.1 Power Cable Connections This section describes the power cable connections of a BTS3900L cabinet. The BTS3900L cabinet can work only in -48 V DC power supply scenario. Figure 5-1 shows the power cable connections of a BTS3900L cabinet in full configuration.
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Figure 5-1 Power cable connections
Table 5-6 describes the power cables. Table 5-6 Power cables SN
Description
P31, P32, P41, and P42
For details, see Input Power Cable for the Cabinet.
P0 to P5
For details, see Power Cable for the RFU.
P10 to P15
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P6 and P16
For details, see Power Cable for the Fan Box.
P7 and P8
For details, see Power Cable for the BBU.
P19
For details, see Power Cable for the GATM.
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5.2.2 Transmission Cable Connections The base station supports the GSM only, UMTS only, LTE only, GSM+UMTS, GSM+LTE, and UMTS+LTE modes. In different modes, board configurations and transmission cable connections are different.
Transmission Cable Connections in the GSM Only Base Station In a GSM base station, the E1/T1 cable, FE/GE Ethernet cable, or FE/GE optical cable can be used for data transmission.
Transmission over the E1 Cable Figure 5-2 shows the transmission cable connections when the E1/T1 cable is used for data transmission in a GSM only base station where only the GTMU is configured as the transmission board in the BBU3900. Figure 5-2 E1/T1 cable connections
Table 5-7 describes the cable connections. Table 5-7 E1/T1 cable connections Cable Number
Cable Description
T1
See 5.5.1 E1/T1 Cable.
Figure 5-3 shows the transmission cable connections when the E1/T1 cable is used for data transmission in a GSM only base station where the GTMU and UTRP4 are configured as transmission boards in the BBU3900. Figure 5-3 E1/T1 cable connections
Table 5-8 describes the cable connections. Issue 07 (2012-02-25)
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Table 5-8 E1/T1 cable connections Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
Transmission over the FE Cable Figure 5-4 shows the transmission cable connections when the FE/GE Ethernet cable is used for data transmission. Figure 5-4 FE/GE Ethernet cable connections
Table 5-9 describes the cable connections. Table 5-9 FE/GE Ethernet cable connections Cable Number
Cable Description
T1
See 5.5.2 FE/GE Cable.
Figure 5-5 shows the transmission cable connections when the FE/GE optical cable is used for data transmission. Figure 5-5 FE/GE optical cable connections
Table 5-10 describes the cable connections. Table 5-10 FE/GE optical cable connections
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Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
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Transmission Cable Connections in the UMTS Only Base Station In a UMTS base station, the E1/T1 cable, FE/GE Ethernet cable, or FE/GE optical cable can be used for data transmission.
Transmission over the E1 Cable Figure 5-6 shows the transmission cable connections when only the E1/T1 cable is used for data transmission in a base station where only the WMPT is configured in the BBU. Figure 5-6 E1/T1 cable connections (1)
Table 5-11 describes the cable connections. Table 5-11 E1/T1 cable connections (1) Cable Number
Cable Description
T1
See 5.5.1 E1/T1 Cable.
Figure 5-7 shows the transmission cable connections when only the E1/T1 cable is used for data transmission in a base station where only the WMPT and UTRP3/UTRP4 is configured in the BBU. Figure 5-7 E1/T1 cable connections (2)
Table 5-12 describes the cable connections. Table 5-12 E1/T1 cable connections (2) Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
Transmission over the FE Cable Figure 5-8 shows the transmission cable connections when only the FE/GE Ethernet cable is used for data transmission in a base station where only the WMPT is configured in the BBU. Issue 07 (2012-02-25)
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Figure 5-8 FE/GE Ethernet cable connections (1)
Table 5-13 describes the cable connections. Table 5-13 FE/GE Ethernet cable connections (1) Cable Number
Cable Description
T1
See 5.5.2 FE/GE Cable.
Figure 5-9 shows the transmission cable connections when only the FE/GE Ethernet cable is used for data transmission in a base station where only the WMPT and UTRP9 is configured in the BBU. Figure 5-9 FE/GE Ethernet cable connections (2)
Table 5-14 describes the cable connections. Table 5-14 FE/GE Ethernet cable connections (2) Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
Figure 5-10 shows the transmission cable connections when only the FE/GE optical cable is used for data transmission in a base station where only the WMPT is configured in the BBU. Figure 5-10 FE/GE optical cable connections (1)
Table 5-15 describes the cable connections. Issue 07 (2012-02-25)
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Table 5-15 FE/GE optical cable connections (1) Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
Figure 5-11 shows the transmission cable connections when only the FE/GE optical cable is used for data transmission in a base station where only the WMPT and UTRP2 is configured in the BBU. Figure 5-11 FE/GE optical cable connections (2)
Table 5-16 describes the cable connections. Table 5-16 FE/GE optical cable connections (2) Cable Number
Cable Description
T1 and T2
See 5.5.3 FE/GE Fiber Optic Cable.
Transmission Cable Connections in the LTE Only Base Station In an LTE only base station, the E1/T1 cable or FE/GE optical cable can be used for data transmission.
Transmission over the E1/T1 Cable When the E1/T1 cable is used for data transmission, the UTRP is required. Figure 5-12 shows the transmission cable connections. Figure 5-12 E1/T1 cable connections
Table 5-17 describes the cable connections.
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Table 5-17 E1/T1 cable connections Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
Transmission over the FE/GE Cable When an LTE only base station uses FE/GE transmission, the FE/GE optical cable is usually used for data transmission. Figure 5-13 shows the transmission cable connections. Figure 5-13 FE/GE optical cable connections
Table 5-18 describes the cable connections. Table 5-18 FE/GE optical cable connections Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
Figure 5-14 shows the transmission cable connections for a GSM only base station when the FE/GE Ethernet cable is used for data transmission. Figure 5-14 FE/GE Ethernet cable connections
Table 5-19 describes the cables. Table 5-19 FE/GE Ethernet cable connections
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Cable No.
Cable Description
T1
For details, see FE Surge Protection Transfer Cable.
T2
For details, see 5.5.2 FE/GE Cable.
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Transmission Cable Connections for a GSM+UMTS Base Station in Common Transmission Mode When a GSM+UMTS base station works in co-transmission mode, TDM co-transmission or IP co-transmission can be used. Based on the IP co-transmission, the GSM+UMTS base station can implement route backup. That is, four FE ports on the GTMU and LMPT panels are used. Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports of the other type are connected to the transport network.
TDM Common Transmission Figure 5-15 shows the transmission cable connection for a GSM+UMTS base station in TDM common transmission mode when the E1/T1 port on the GTMU serves as the shared port to connect to the BSC and RNC. The GTMU communicates with the WMPT using the backplane to implement TDM common transmission. Figure 5-15 Transmission cable connection for a GSM+UMTS base station in TDM common transmission mode (1)
Table 5-20 describes the cable. Table 5-20 Transmission cable for a GSM+UMTS base station in TDM common transmission mode (1) SN
Description
T1
For details, see 5.5.1 E1/T1 Cable.
Figure 5-16 shows the transmission cable connection for a GSM+UMTS base station in TDM common transmission mode when the E1/T1 port on the GSM UTRP serves as the shared port to connect to the BSC and RNC. The GSM UTRP communicates with the WMPT using the backplane to implement TDM common transmission. NOTE
Note that the E1/T1 ports on the GTMU and the WMPT can also be used for data transmission independently, but the corresponding cable connections are not shown here.
Figure 5-16 Transmission cable connection for a GSM+UMTS base station in TDM common transmission mode (2)
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Table 5-21 describes the cable. Table 5-21 Transmission cable for a GSM+UMTS base station in TDM common transmission mode (2) SN
Description
T1
For details, see 5.5.1 E1/T1 Cable.
IP Over E1 Common Transmission Figure 5-17 shows the transmission cable connections for a GSM+UMTS base station in IP common transmission mode when the E1/F1 port on the UMTS UTRP serves as the shared port to connect to the BSC and RNC, and the FE/GE electrical ports on the GTMU and the WMPT are interconnected to implement IP common transmission. NOTE
IP common transmission can also be implemented by interconnecting the FE/GE optical ports on the GTMU and the WMPT. The transmission cable connections are similar to Figure 5-17, which are not described here.
Figure 5-17 Transmission cable connections for a GSM+UMTS base station in IP over E1 common transmission mode (1)
Table 5-22 describes the cables. Table 5-22 Transmission cables for a GSM+UMTS base station in IP over E1 common transmission mode (1) SN
Description
T1
For details, see 5.5.1 E1/T1 Cable.
T2
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
Figure 5-18 shows the transmission cable connections for a GSM+UMTS base station in IP common transmission mode when the FE/GE electrical port on the WMPT serves as the shared port to connect to the BSC and RNC, and the FE/GE optical ports on the GTMU and the WMPT are interconnected to implement IP common transmission. Figure 5-18 Transmission cable connections for a GSM+UMTS base station in IP over E1 common transmission mode (2)
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Table 5-23 describes the cables. Table 5-23 Transmission cables for a GSM+UMTS base station in IP over E1 common transmission mode (2) SN
Description
T1
For details, see 5.5.2 FE/GE Cable.
T2
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
IP Over FE Common Transmission Figure 5-19 shows the transmission cable connections for a GSM+UMTS base station in IP cotransmission mode when the FE/GE optical port of the UMTS UTRP2 is used as the shared ports for data transmission, and the FE/GE optical ports of the GTMU and the UMTS UTRP2 are interconnected to implement IP co-transmission. Figure 5-19 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission mode (1)
Table 5-24 describes the cables. Table 5-24 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission mode (1) SN
Description
T1
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
Figure 5-20 shows the transmission cable connections for a GSM+UMTS base station in IP cotransmission mode when the WMPT FE/GE optical port is used as the shared port for data transmission, and the FE/GE electrical ports of the GTMU and the WMPT are interconnected to implement IP co-transmission.
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Figure 5-20 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission mode (2)
Table 5-25 describes the cables. Table 5-25 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission mode (2) SN
Description
T1
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
Route Backup Mode with IP Common Transmission In a GSM+UMTS base station, the route backup mode with IP common transmission has the following characteristics: l
IP transmission is applied. The GTMU and WMPT are connected to the BSC and RNC respectively using the active channel.
l
The GTMU and the WMPT are interconnected using FE ports on their panels.
l
If the active channel is faulty, the standby channel takes over. After the active channel is restored, the route is switched back to the active one.
l
The bandwidth required by UMTS services is larger than the processing capability of the GSM standard transport network. Therefore, when the standby channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed.
In a GSM+UMTS base station, the route backup mode with IP common transmission has the following limitations: l
The route backup function is not applicable when the base station uses the IP over E1 common transmission.
l
The route backup mode is not applicable to the ports on the UTRPs for GSM or UMTS transmission. It is applicable only to the ports on the GTMU and WMPT panels.
l
In route backup mode, the FE ports of one type on the GTMU and WMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the BSC and the RNC.
Figure 5-21 shows the transmission cable connections for a GSM+UMTS base station in route backup mode with IP common transmission when the FE optical ports on the GTMU and WMPT are interconnected and the FE electrical ports on the two boards are connected to the BSC and RNC. Issue 07 (2012-02-25)
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Figure 5-21 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the BSC and RNC
Table 5-26 describes the cables. Table 5-26 Transmission cables with FE optical ports for interconnection and FE electrical ports connected to the BSC and RNC SN
Description
T1 and T2
For details, see 5.5.2 FE/GE Cable.
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Figure 5-22 shows the transmission cable connections for a GSM+UMTS base station in route backup mode with IP common transmission when the FE electrical ports on the GTMU and WMPT are interconnected and the FE optical ports on the two boards are connected to the BSC and RNC. Figure 5-22 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the BSC and RNC
Table 5-27 describes the cables. Table 5-27 Transmission cables with FE electrical ports for interconnection and FE optical ports connected to the BSC and RNC
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SN
Description
T1 and T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
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Transmission Cable Connections in a GSM+UMTS Base Station in Separate Transmission Mode When a GSM+UMTS base station works in separate transmission mode, separate transmission links can be configured for the GSM side and UMTS side. This section describes only two typical manners of the transmission cable connections in separate transmission mode.
GSM E1/T1+UMTS E1/T1 Figure 5-23 shows the transmission cable connections when the E1/T1 cables are used for data transmission on both the GSM and UMTS sides when a GSM+UMTS base station works in separate transmission mode. Figure 5-23 E1/T1 cable connections in separate transmission mode
Table 5-28 describes the cable connections. Table 5-28 E1/T1 cable connections in separate transmission mode Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
GSM FE/GE+UMTS FE/GE Figure 5-24 shows the transmission cable connections when the FE/GE Ethernet cables are used for data transmission on both the GSM and UMTS sides when a GSM+UMTS base station works in separate transmission mode. Figure 5-24 FE/GE cable connections in separate transmission mode (1)
Table 5-29 describes the cable connections. Table 5-29 FE/GE cable connections in separate transmission mode (1)
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Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
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Figure 5-25 shows the transmission cable connections when the FE/GE optical cables are used for data transmission on both the GSM and UMTS sides when a GSM+UMTS base station works in separate transmission mode. Figure 5-25 FE/GE cable connections in separate transmission mode (2)
Table 5-30 describes the cable connections. Table 5-30 FE/GE cable connections in separate transmission mode (2) Cable Number
Cable Description
T1 and T2
See 5.5.3 FE/GE Fiber Optic Cable.
Transmission Cable Connections in the GSM+UMTS Base Station in Route Backup Transmission Mode A GSM+UMTS base station implements IP co-transmission based on the interconnection between the FE ports (optical or electrical type) on the GTMU and WMPT panels. Based on the co-transmission, route backup can be implemented. That is, four FE ports on the GTMU and WMPT panels are used. Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports of the other type are connected to the BSC and RNC. In a GSM+UMTS base station, the route backup transmission mode has the following characteristics: l
IP transmission is applied. The GTMU and WMPT are connected to the BSC or RNC through the primary channel respectively.
l
The GTMU and the WMPT are interconnected through FE ports on their panels.
l
If the primary channel is faulty, the secondary channel takes over. After the primary channel is restored, the route is switched back to the primary one.
l
The bandwidth required by UMTS services is larger than the processing capability of the GSM standard transport network. Therefore, when the secondary channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed.
In a GSM+UMTS base station, the following limitations on the route backup transmission mode apply: l
The route backup function is not applicable when the base station uses the IP over E1 transmission.
l
The route backup transmission mode is not applicable on the ports on the UTRPs for GSM and UMTS transmission. It is applicable only on the ports on the GTMU and WMPT panels.
l
In route backup transmission mode, the FE ports of one type on the GTMU and WMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the BSC and the RNC.
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FE Optical Ports for Interconnection and FE Electrical Ports Connected to the Transport Network Figure 5-26 shows the transmission cable connections for a GSM+UMTS base station in route backup transmission mode when the FE optical ports on the GTMU and WMPT are interconnected and the FE electrical ports on the two boards are connected to the BSC and RNC. Figure 5-26 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network
Table 5-31 describes the cable connections. Table 5-31 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
T3
See 5.5.5 Interconnection Cable Between FE Optical Ports.
FE Electrical Ports for Interconnection and FE Optical Ports Connected to the Transport Network Figure 5-27 shows the transmission cable connections for a GSM+UMTS base station in route backup transmission mode when the FE electrical ports on the GTMU and WMPT are interconnected and the FE optical ports on the two boards are connected to the BSC and RNC. Figure 5-27 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network
Table 5-32 describes the cable connections.
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Table 5-32 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network Cable Number
Cable Description
T1 and T2
See 5.5.3 FE/GE Fiber Optic Cable.
T3
See 5.5.4 Interconnection Cable Between the FE Electrical Ports.
Transmission Cable Connections in the GSM+LTE Base Station in CoTransmission Mode A GSM+LTE base station implements IP over E1 and IP over FE/GE co-transmission based on the interconnection between the FE ports (optical or electrical type) on the GTMU and LMPT panels. Based on the co-transmission, route backup can be implemented. That is, four FE ports on the GTMU and LMPT panels are used. Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports of the other type are connected to the transport network.
IP Over E1 Common Transmission Figure 5-28 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE optical port on the LMPT is interconnected to the FE/GE optical port on the GTMU. Figure 5-28 Transmission cable connections for a GSM+LTE base station in IP over E1 common transmission mode (1)
Table 5-33 describes the cables. Table 5-33 Transmission cables for a GSM+LTE base station in IP over E1 common transmission mode (1) SN
Description
T1 and T2
For details, see 5.5.1 E1/T1 Cable.
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Figure 5-29 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE electrical port on the LMPT is interconnected to the FE/GE electrical port on the GTMU. Issue 07 (2012-02-25)
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Figure 5-29 Transmission cable connections for a GSM+LTE base station in IP over E1 common transmission mode (2)
Table 5-34 describes the cables. Table 5-34 Transmission cables for a GSM+LTE base station in IP over E1 common transmission mode (2) SN
Description
T1 and T2
For details, see 5.5.1 E1/T1 Cable.
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
IP Over FE/GE Common Transmission Figure 5-30 shows the transmission cable connections for a GSM+LTE base station when the FE/GE optical port on the LMPT is connected to the transmission equipment and the FE/GE electrical port on the LMPT is interconnected to the FE/GE electrical port on the GTMU. Figure 5-30 Transmission cable connections for a GSM+LTE base station in IP over FE/GE common transmission mode (1)
Table 5-35 describes the cables. Table 5-35 Transmission cables for a GSM+LTE base station in IP over FE/GE common transmission mode (1)
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SN
Description
T1
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
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Figure 5-31 shows the transmission cable connections for a GSM+LTE base station when the FE/GE electrical port on the LMPT is connected to the transmission equipment and the FE/GE optical port on the LMPT is interconnected to the FE/GE optical port on the GTMU. Figure 5-31 Transmission cable connections for a GSM+LTE base station in IP over FE/GE common transmission mode
Table 5-36 describes the cables. Table 5-36 Transmission cables for a GSM+LTE base station in IP over FE/GE common transmission mode SN
Description
T1
For details, see 5.5.2 FE/GE Cable.
T2
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Route Backup Mode with IP Common Transmission In a GSM+LTE base station, the route backup transmission mode has the following characteristics: l
IP transmission is applied. The GTMU and LMPT are connected to the transport network through the primary channel.
l
The GTMU and the LMPT are interconnected through FE ports on their panels.
l
If the primary channel is faulty, the secondary channel takes over. After the primary channel is restored, the route is switched back to the primary one.
l
The bandwidth required by LTE services is larger than the processing capability of the GSM standard transport network. Therefore, when the secondary channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed.
In a GSM+LTE base station, the following limitations on the route backup transmission mode apply: l
The route backup function is not applicable when the base station uses the IP over E1 transmission.
l
The route backup transmission mode is not applicable on the ports on the UTRPs for GSM and LTE transmission. It is applicable only on the ports on the GTMU and LMPT panels.
l
In route backup transmission mode, the FE ports of one type on the GTMU and LMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the transport network.
Figure 5-32 shows the transmission cable connections for a GSM+LTE base station in route backup mode with IP common transmission when the FE electrical ports on the GTMU and Issue 07 (2012-02-25)
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LMPT are interconnected and the FE optical ports on the two boards are connected to the base station controller. Figure 5-32 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the base station controller
Table 5-37 describes the cables. Table 5-37 Transmission cables with FE electrical ports for interconnection and FE optical ports connected to the base station controller SN
Description
T1 and T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
FE Optical Ports for Interconnection and FE Electrical Ports Connected to the BSC and RNC Figure 5-33 shows the transmission cable connections for a GSM+LTE base station in route backup mode with IP common transmission when the FE optical ports on the GTMU and LMPT are interconnected and the FE electrical ports on the two boards are connected to the base station controller. Figure 5-33 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the base station controller
Table 5-38 describes the cables. Table 5-38 Transmission cables with FE optical ports for interconnection and FE electrical ports connected to the base station controller
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SN
Description
T1 and T2
For details, see 5.5.2 FE/GE Cable. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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SN
Description
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Transmission Cable Connections in the GSM+LTE Base Station in Separate Transmission Mode When a GSM+LTE base station works in separate transmission mode, separate transport links can be configured for the GSM side and LTE side. This section describes two typical manners of the transmission cable connections in separate transmission mode.
GSM E1/T1+LTE FE/GE Figure 5-34 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port (providing four E1s/T1s) on the GTMU is used for data transmission on the GSM side and the FE/GE electrical port is used for data transmission on the LTE side. Figure 5-34 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (1)
Table 5-39 describes the cable connections. Table 5-39 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (1) Cable Number
Cable Description
T1
See 5.5.1 E1/T1 Cable.
T2
See 5.5.2 FE/GE Cable.
Figure 5-35 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port (providing four E1s/T1s) on the GTMU is used for data transmission on the GSM side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-35 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (2)
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Table 5-40 describes the cable connections. Table 5-40 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (2) Cable Number
Cable Description
T1
See 5.5.1 E1/T1 Cable.
T2
See 5.5.3 FE/GE Fiber Optic Cable.
Figure 5-36 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port (providing four E1s/T1s) on the GTMU and the E1/T1 port (providing four E1s/T1s) on the UTRP are used for data transmission on the GSM side and the FE/GE electrical port is used for data transmission on the LTE side. Figure 5-36 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (1)
Table 5-41 describes the cable connections. Table 5-41 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (1) Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.2 FE/GE Cable.
Figure 5-37 shows the transmission cable connections for a GSM+LTE base station when the E1/T1 port (providing four E1s/T1s) on the GTMU and the E1/T1 port (providing four E1s/T1s) on the UTRP are used for data transmission on the GSM side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-37 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (2)
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Table 5-42 describes the cable connections. Table 5-42 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (2) Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.3 FE/GE Fiber Optic Cable.
GSM FE/GE+LTE FE/GE Figure 5-38 shows the transmission cable connections for a GSM+LTE base station in separate transmission mode when the FE/GE electrical ports are used for data transmission on both the GSM and LTE sides. Figure 5-38 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (1)
Table 5-43 describes the cable connections. Table 5-43 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (1) Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
Figure 5-39 shows the transmission cable connections for a GSM+LTE base station when the FE/GE electrical port is used for data transmission on the GSM side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-39 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (2)
Table 5-44 describes the cable connections. Issue 07 (2012-02-25)
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Table 5-44 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (2) Cable Number
Cable Description
T1
See 5.5.2 FE/GE Cable.
T2
See 5.5.3 FE/GE Fiber Optic Cable.
Transmission Cable Connections in the GSM+LTE Base Station in Route Backup Transmission Mode A GSM+LTE base station implements IP co-transmission based on the interconnection between the FE ports (optical or electrical type) on the GTMU and LMPT panels. Based on the cotransmission, route backup can be implemented. That is, four FE ports on the GTMU and LMPT panels are used. Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports of the other type are connected to the transport network. In a GSM+LTE base station, the route backup transmission mode has the following characteristics: l IP transmission is applied. The GTMU and LMPT are connected to the transport network through the primary channel. l The GTMU and the LMPT are interconnected through FE ports on their panels. l If the primary channel is faulty, the secondary channel takes over. After the primary channel is restored, the route is switched back to the primary one. l The bandwidth required by LTE services is larger than the processing capability of the GSM standard transport network. Therefore, when the secondary channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed. In a GSM+LTE base station, the following limitations on the route backup transmission mode apply: l The route backup function is not applicable when the base station uses the IP over E1 transmission. l The route backup transmission mode is not applicable on the ports on the UTRPs for GSM and LTE transmission. It is applicable only on the ports on the GTMU and LMPT panels. l In route backup transmission mode, the FE ports of one type on the GTMU and LMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the transport network.
FE Optical Ports for Interconnection and FE Electrical Ports Connected to the Transport Network Figure 5-40 shows the transmission cable connections for a GSM+LTE base station in route backup transmission mode when the FE optical ports on the GTMU and LMPT are interconnected and the FE electrical ports on the two boards are connected to the transport network. Figure 5-40 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network
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Table 5-45 describes the cable connections. Table 5-45 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
T3
See 5.5.5 Interconnection Cable Between FE Optical Ports.
FE Electrical Ports for Interconnection and FE Optical Ports Connected to the Transport Network Figure 5-41 shows the transmission cable connections for a GSM+LTE base station in route backup transmission mode when the FE electrical ports on the GTMU and LMPT are interconnected and the FE optical ports on the two boards are connected to the transport network. Figure 5-41 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network
Table 5-46 describes the cable connections. Table 5-46 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network Cable Number
Cable Description
T1 and T2
See 5.5.3 FE/GE Fiber Optic Cable.
T3
See 5.5.4 Interconnection Cable Between the FE Electrical Ports.
Transmission Cable Connection in the UMTS+LTE Base Station in CoTransmission Mode A UMTS+LTE base station implements IP co-transmission based on the interconnection between the FE ports on the WMPT and LMPT panels. Based on the co-transmission, route backup and hybrid transmission can be implemented.
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IP Over E1 Common Transmission Figure 5-42 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE optical port on the LMPT is interconnected to the FE/GE optical port on the WMPT. Figure 5-42 Transmission cable connections for a UMTS+LTE base station in IP over E1 common transmission mode (1)
Table 5-47 describes the cables. Table 5-47 Transmission cables for a UMTS+LTE base station in IP over E1 common transmission mode (1) SN
Description
T1 and T2
For details, see 5.5.1 E1/T1 Cable.
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Figure 5-43 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE electrical port on the LMPT is interconnected to the FE/GE electrical port on the WMPT. Figure 5-43 Transmission cable connections for a UMTS+LTE base station in IP over E1 common transmission mode (2)
Table 5-48 describes the cables. Table 5-48 Transmission cables for a UMTS+LTE base station in IP over E1 common transmission mode (2)
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SN
Description
T1 and T2
For details, see 5.5.1 E1/T1 Cable. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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SN
Description
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
IP Over FE/GE Common Transmission Figure 5-44 shows the transmission cable connections for a UMTS+LTE base station when the FE/GE optical port on the LMPT is connected to the transmission equipment and the FE/GE electrical port on the LMPT is interconnected to the FE/GE electrical port on the WMPT. Figure 5-44 Transmission cable connections for a UMTS+LTE base station in IP over FE/GE common transmission mode (1)
Table 5-49 describes the cables. Table 5-49 Transmission cables for a UMTS+LTE base station in IP over FE/GE common transmission mode (1) SN
Description
T1
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
Figure 5-45 shows the transmission cable connections for a UMTS+LTE base station when the FE/GE electrical port on the LMPT is connected to the transmission equipment and the FE/GE optical port on the LMPT is interconnected to the FE/GE optical port on the WMPT. Figure 5-45 Transmission cable connections for a UMTS+LTE base station in IP over FE/GE common transmission mode
Table 5-50 describes the cables.
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Table 5-50 Transmission cables for a UMTS+LTE base station in IP over FE/GE common transmission mode SN
Description
T1
For details, see 5.5.2 FE/GE Cable.
T2
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Route Backup Mode with IP Common Transmission In route backup mode, the FE ports of one type (either optical or electrical ports) on the WMPT and LMPT are interconnected, and the FE ports of the other type (either optical or electrical ports) on the two boards are connected to the transmission equipment. In a UMTS+LTE base station, the route backup transmission mode has the following characteristics: l
IP transmission is applied. The WMPT and LMPT are connected to the transport network through the primary channel.
l
The WMPT and the LMPT are interconnected through FE ports on their panels.
l
If the primary channel is faulty, the secondary channel takes over. After the primary channel is restored, the route is switched back to the primary one.
l
The bandwidth required by LTE services is larger than the processing capability of the UMTS standard transport network. Therefore, when the secondary channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed.
In a UMTS+LTE base station, the following limitations on the route backup transmission mode apply: l
The route backup function is not applicable when the base station uses the IP over E1 transmission.
l
The route backup transmission mode is not applicable on the ports on the UTRPs for UMTS and LTE transmission. It is applicable only on the ports on the WMPT and LMPT panels.
l
In route backup transmission mode, the FE ports of one type on the WMPT and LMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the transport network.
Figure 5-46 shows the transmission cable connections for a UMTS+LTE base station in route backup mode with IP common transmission when the FE electrical ports on the WMPT and LMPT are interconnected and the FE optical ports on the two boards are connected to the transmission equipment. Figure 5-46 Transmission cable connections for a UMTS+LTE base station in route backup mode with IP common transmission (1)
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Table 5-51 describes the cables. Table 5-51 Transmission cables for a UMTS+LTE base station in route backup mode with IP common transmission (1) SN
Description
T1 and T2
For details, see 5.5.3 FE/GE Fiber Optic Cable.
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
Figure 5-47 shows the transmission cable connections for a UMTS+LTE base station in route backup mode with IP common transmission when the FE optical ports on the WMPT and LMPT are interconnected and the FE electrical ports on the two boards are connected to the transmission equipment. Figure 5-47 Transmission cable connections for a UMTS+LTE base station in route backup mode with IP common transmission (2)
Table 5-52 describes the cables. Table 5-52 Transmission cables for a UMTS+LTE base station in route backup mode with IP common transmission (2) SN
Description
T1 and T2
For details, see 5.5.2 FE/GE Cable.
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
Hybrid Transmission In hybrid transmission mode, the UMTS E1/T1 port and LTE FE/GE port serve as shared ports to connect to the transmission equipment. The E1/T1 port is used to transmit the services with high QoS requirements, such as CS services; and the FE/GE port is used to transmit the services with low QoS requirements, such as PS services. The UMTS E1/T1 port and the LTE FE/GE port are used for data transmission in a UMTS+LTE base station in hybrid transmission mode. When the UMTS FE/GE port and the LTE FE/GE port are used for data transmission, hybrid transmission is not applicable. Issue 07 (2012-02-25)
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Figure 5-48 shows the transmission cable connections in hybrid transmission mode (UMTS E1/ T1 port + LTE FE/GE optical port). Figure 5-48 Transmission cable connections in hybrid transmission mode (1)
Table 5-53 describes the cables. Table 5-53 Transmission cables in hybrid transmission mode (1) SN
Description
T1
For details, see 5.5.3 FE/GE Fiber Optic Cable.
T2
For details, see 5.5.1 E1/T1 Cable.
T3
For details, see 5.5.4 Interconnection Cable Between the FE Electrical Ports.
Figure 5-49 shows the transmission cable connections in hybrid transmission mode (UMTS E1/ T1 port + LTE FE/GE electrical port). Figure 5-49 Transmission cable connections in hybrid transmission mode (2)
Table 5-54 describes the cables. Table 5-54 Transmission cables in hybrid transmission mode (2)
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SN
Description
T1
For details, see 5.5.2 FE/GE Cable.
T2
For details, see 5.5.1 E1/T1 Cable.
T3
For details, see 5.5.5 Interconnection Cable Between FE Optical Ports.
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Transmission Cable Connection in the UMTS+LTE Base Station in Separate Transmission Mode When a UMTS+LTE base station works in separate transmission mode, separate transport links can be configured for the UMTS side and the LTE side. This section describes two typical manners of the transmission cable connections in separate transmission mode.
UMTS E1/T1+LTE FE/GE Figure 5-50 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port (providing four E1s/T1s) on the WMPT is used for data transmission on the UMTS side and the FE/GE electrical port is used for data transmission on the LTE side. Figure 5-50 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (1)
Table 5-55 describes the cable connections. Table 5-55 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (1) Cable Number
Cable Description
T1
See 5.5.2 FE/GE Cable.
T2
See 5.5.1 E1/T1 Cable.
Figure 5-51 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port (providing four E1s/T1s) on the WMPT is used for data transmission on the UMTS side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-51 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (2)
Table 5-56 describes the cable connections.
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Table 5-56 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (2) Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
T2
See 5.5.1 E1/T1 Cable.
Figure 5-52 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port (providing eight E1s/T1s) on the UTRP3 or UTRP4 is used for data transmission on the UMTS side and the FE/GE electrical port is used for data transmission on the LTE side. Figure 5-52 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (1)
Table 5-57 describes the cable connections. Table 5-57 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (1) Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.2 FE/GE Cable.
Figure 5-53 shows the transmission cable connections for a UMTS+LTE base station when the E1/T1 port (providing eight E1s/T1s) on the UTRP3 or UTRP4 is used for data transmission on the UMTS side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-53 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (2)
Table 5-58 describes the cable connections. Issue 07 (2012-02-25)
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Table 5-58 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (2) Cable Number
Cable Description
T1 and T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.3 FE/GE Fiber Optic Cable.
UMTS FE/GE+LTE FE/GE Figure 5-54 shows the transmission cable connections for a UMTS+LTE base station in separate transmission mode when the FE/GE ports are used for data transmission on both the UMTS and LTE sides. Figure 5-54 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (1)
Table 5-59 describes the cable connections. Table 5-59 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (1) Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
Figure 5-55 shows the transmission cable connections for a UMTS+LTE base station when the FE/GE electrical port is used for data transmission on the UMTS side and the FE/GE optical port is used for data transmission on the LTE side. Figure 5-55 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (2)
Table 5-60 describes the cable connections.
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Table 5-60 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (2) Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
T2
See 5.5.2 FE/GE Cable.
Transmission Cable Connection in the UMTS+LTE Base Station in Route Backup Transmission Mode A UMTS+LTE base station implements IP co-transmission based on the interconnection between the FE ports (optical or electrical type) on the WMPT and LMPT panels. Based on the co-transmission, route backup can be implemented. That is, four FE ports on the WMPT and LMPT panels are used. Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports of the other type are connected to the transport network. In a UMTS+LTE base station, the route backup transmission mode has the following characteristics: l
IP transmission is applied. The WMPT and LMPT are connected to the transport network through the primary channel.
l
The WMPT and the LMPT are interconnected through FE ports on their panels.
l
If the primary channel is faulty, the secondary channel takes over. After the primary channel is restored, the route is switched back to the primary one.
l
The bandwidth required by LTE services is larger than the processing capability of the UMTS standard transport network. Therefore, when the secondary channel is used, the Quality of Service (QoS) of only high-priority data flows can be guaranteed.
In a UMTS+LTE base station, the following limitations on the route backup transmission mode apply: l
The route backup function is not applicable when the base station uses the IP over E1 transmission.
l
The route backup transmission mode is not applicable on the ports on the UTRPs for UMTS and LTE transmission. It is applicable only on the ports on the WMPT and LMPT panels.
l
In route backup transmission mode, the FE ports of one type on the WMPT and LMPT panels are interconnected. The FE ports of the other type on the two boards are connected to the transport network.
FE Optical Ports for Interconnection and FE Electrical Ports Connected to the Transport Network Figure 5-56 shows the transmission cable connections for a UMTS+LTE base station in route backup transmission mode when the FE optical ports on the WMPT and LMPT are interconnected and the FE electrical ports on the two boards are connected to the transport network.
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Figure 5-56 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network
Table 5-61 describes the cable connections. Table 5-61 Transmission cable connections with FE optical ports for interconnection and FE electrical ports connected to the transport network Cable Number
Cable Description
T1 and T2
See 5.5.2 FE/GE Cable.
T3
See 5.5.5 Interconnection Cable Between FE Optical Ports.
FE Electrical Ports for Interconnection and FE Optical Ports Connected to the Transport Network Figure 5-57 shows the transmission cable connections for a UMTS+LTE base station in route backup transmission mode when the FE electrical ports on the WMPT and LMPT are interconnected and the FE optical ports on the two boards are connected to the transport network. Figure 5-57 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network
Table 5-62 describes the cable connections. Table 5-62 Transmission cable connections with FE electrical ports for interconnection and FE optical ports connected to the transport network
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Cable Number
Cable Description
T1 and T2
See 5.5.3 FE/GE Fiber Optic Cable.
T3
See 5.5.4 Interconnection Cable Between the FE Electrical Ports.
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Transmission Cable Connection in the UMTS+LTE Base Station in Hybrid Transmission Mode A UMTS+LTE base station implements IP co-transmission based on the interconnection between the FE ports on the WMPT and LMPT panels. Based on the co-transmission, hybrid transmission can be implemented. That is, the UMTS E1/T1 port and LTE FE/GE port are used as shared ports for data transmission. The E1/T1 port is used to transmit the services with high QoS requirements, such as CS services. The FE/GE port is used to transmit the services with low QoS requirements, such as PS services. The UMTS E1/T1 port and the LTE FE/GE port are used for data transmission in a UMTS+LTE base station in hybrid transmission. When the UMTS FE/GE port and the LTE FE/GE port are used for data transmission, hybrid transmission is not applicable.
UMTS E1/T1 Port and LTE FE/GE Electrical Port for Data Transmission Figure 5-58 shows the transmission cable connections for a UMTS+LTE base station in hybrid transmission mode when the UMTS E1/T1 port and the LTE FE/GE electrical port are used for data transmission. Figure 5-58 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTE FE/GE electrical port)
Table 5-63 describes the cable connections. Table 5-63 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTE FE/GE electrical port) Cable Number
Cable Description
T1
See 5.5.2 FE/GE Cable.
T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.5 Interconnection Cable Between FE Optical Ports.
UMTS E1/T1 Port and LTE FE/GE Optical Port for Data Transmission Figure 5-59 shows the transmission cable connections for a UMTS+LTE base station in hybrid transmission mode when the UMTS E1/T1 port and the LTE FE/GE optical port are used for data transmission. Figure 5-59 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTE FE/GE optical port)
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Table 5-64 describes the cable connections. Table 5-64 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTE FE/GE optical port) Cable Number
Cable Description
T1
See 5.5.3 FE/GE Fiber Optic Cable.
T2
See 5.5.1 E1/T1 Cable.
T3
See 5.5.4 Interconnection Cable Between the FE Electrical Ports.
5.2.3 CPRI Cable Connections The CPRI cables are connected in star or chain topology. In star topology, each RFU is connected to the BBU separately. In chain topology, the RFUs are cascaded before connected to the BBU.
CPRI Cable Connections for a GSM Only Base Station Figure 5-60 and Figure 5-61 show the CPRI cable connections of the DRFU/GRFU. Figure 5-60 Star topology
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Figure 5-61 Chain topology
CPRI Cable Connections for a UMTS Only Base Station Figure 5-62 shows the star topology of the WRFUs over CPRI ports when the WRFUs work in single-band mode and support not more than three sectors in a base station with MIMO not supported. Figure 5-62 Star topology over CPRI ports
When the WRFUs work in single-band mode and support not more than three sectors (two WRFUs for each sector) in a base station with MIMO supported, or when the bandwidth and carriers are expanded, the CPRI ports are connected in chain topology, as shown in Figure 5-63 and Figure 5-64. Issue 07 (2012-02-25)
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Figure 5-63 Chain topology over CPRI ports
Figure 5-64 Chain topology over CPRI ports on the WBBPd
CPRI Cable Connections for an LTE Only Base Station Figure 5-65 shows the CPRI cable connections in the 3 x 10 MHz 2T2R configuration.
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Figure 5-65 CPRI cable connections in the 3 x 10 MHz 2T2R configuration
Figure 5-66 shows the CPRI cable connections in the 3 x 20 MHz 2T2R configuration. Figure 5-66 CPRI cable connections in the 3 x 20 MHz 2T2R configuration
Figure 5-67 shows the CPRI cable connections in the 3 x 10 MHz 4T4R configuration.
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Figure 5-67 CPRI cable connections in the 3 x 10 MHz 4T4R configuration
Figure 5-68 shows the CPRI cable connections in the 3 x 20 MHz 4T4R configuration. Figure 5-68 CPRI cable connections in the 3 x 20 MHz 4T4R configuration
CPRI Cable Connections for a GSM+UMTS Base Station CPRI Cable Connections in the Co-Module GSM+UMTS Base Station When the MRFUs support not more than three sectors, one WBBPb is configured. When the MRFUs support more than three sectors, two WBBPbs or one WBBPd are configured. When the MRFUs work in single-band mode and support three sectors, the CPRI ports are connected in dual-star topology, as shown in Figure 5-69 and Figure 5-70.
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Figure 5-69 Dual-star topology over CPRI ports (1)
Figure 5-70 Dual-star topology over CPRI ports (2)
When the MRFUs work in single-band mode and support more than three sectors, the CPRI ports are connected in dual-star topology, as shown in Figure 5-71 and Figure 5-72. Figure 5-71 Dual-star topology over CPRI ports (3)
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Figure 5-72 Dual-star topology over CPRI ports (4)
CPRI Cable Connections in the Co-Cabinet GSM+UMTS Base Station When a GSM+UMTS base station works in co-cabinet mode, the base station supports a maximum of 12 RFUs. Figure 5-73 and Figure 5-74 show the CPRI cable connections in a base station in co-cabinet mode. Figure 5-73 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/ GRFUs (1)
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Figure 5-74 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/ GRFUs (2)
When the MRFUs work in dual-mode and support three sectors and when the WRFU support three sectors in a base station with MIMO not supported, the CPRI cables are connected in the manner shown in Figure 5-75.
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Figure 5-75 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (1)
When the MRFUs work in dual-mode and support three sectors and when the WRFU support three sectors in a base station with MIMO supported, the CPRI cables are connected in the manner shown in Figure 5-76. Figure 5-76 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (2)
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When the MRFUs work in dual-mode and support three sectors, and the number of DRFUs/ GRFUs is more than three, the UBRI is required. In this case, the CPRI cables are connected in the manner shown in Figure 5-77. Figure 5-77 CPRI cable connections in a co-cabinet base station with MRFUs and DRFUs/ GRFUs
CPRI Cable Connections for a GSM+LTE Base Station CPRI Cable Connections in the Co-Module GSM+LTE Base Station The MRFUs working in GSM+LTE mode are connected in the dual-star topology, as shown in Figure 5-78.
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Figure 5-78 Dual-star topology over CPRI ports
CPRI Cable Connections in the Co-Cabinet GSM+UMTS Base Station Figure 5-79 shows the CPRI cable connections in a base station in co-cabinet mode. Figure 5-79 CPRI cable connections in co-cabinet mode
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CPRI Cable Connections for a UMTS+LTE Base Station The WRFUs and LRFUs in a UMTS+LTE base station use the same CPRI cable connection as the RFUs in a UMTS only base station and LTE only base station respectively, as shown in Figure 5-80. Figure 5-80 CPRI port connection principles
CPRI Cable Connections for a GU+LO Base Station CPRI Cable Connections for a 6GU+3UO+3LO Base Station Figure 5-81 shows the CPRI cable connections for a base station configured with six GSM +UMTS RFUs, three UMTS only RFUs, and three LTE only RFUs.
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Figure 5-81 CPRI cable connections for a base station configured with six GSM+UMTS RFUs, three UMTS only RFUs, and three LTE only RFUs
CPRI Cable Connections for a 6GU+3GO+3LO Base Station Figure 5-82 shows the CPRI cable connections for a base station configured with six GSM +UMTS RFUs, three GSM only RFUs, and three LTE only RFUs.
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Figure 5-82 CPRI cable connections for a base station configured with six GSM+UMTS RFUs, three GSM only RFUs, and three LTE only RFUs
CPRI Cable Connections for a 3GO+3UO (MIMO)+3LO Base Station Figure 5-83 shows the CPRI cable connections for a base station configured with three GSM only RFUs, three UMTS only RFUs (supporting MIMO), and three LTE only RFUs.
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Figure 5-83 CPRI cable connections for a base station configured with three GSM only RFUs, three UMTS only RFUs (supporting MIMO), and three LTE only RFUs
CPRI Cable Connections for a GL+UO Base Station CPRI Cable Connections for a 6GL+3UO (MIMO) Base Station Figure 5-84 shows the CPRI cable connections for a base station configured with six GSM+LTE RFUs and three UMTS only RFUs (supporting MIMO).
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Figure 5-84 CPRI cable connections for a base station configured with six GSM+LTE RFUs and three UMTS only RFUs (supporting MIMO)
CPRI Cable Connections for a 3GO+6GL+3UO Base Station Figure 5-85 shows the CPRI cable connections for a base station configured with three GSM only RFUs, six GSM+LTE RFUs, and three UMTS only RFUs.
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Figure 5-85 CPRI cable connections for a base station configured with three GSM only RFUs, six GSM+LTE RFUs, and three UMTS only RFUs
5.2.4 Monitoring Signal Cable Connections This section describes the signal cable connections of a BTS3900L cabinet. By default, the BTS3900L cabinet is installed with one BBU, supporting a maximum of 16 dry contact alarm inputs and four RS485 monitoring signal inputs. Figure 5-86 shows the signal cable connections of a BTS3900L cabinet. The signal cable connections for two BBUs in triple mode are the same as those for a single BBU in single mode or dual mode. This document uses the configuration of a single BBU as an example.
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Figure 5-86 Signal cable connections of a BTS3900L cabinet
Table 5-65 describes the signal cables of a BTS3900L cabinet. Table 5-65 Signal cables of a BTS3900L cabinet
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SN
Description
S1
For details, see 5.7.1 Monitoring Signal Cable for the Fan Box.
S2
For details, see 5.7.6 Signal Cable for the ELU.
S3
For details, see 5.7.2 Fan Box Cascade Signal Cable.
S4,S5
For details, see 5.7.7 Monitoring Signal Cable for the GATM.
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5.2.5 RF Cable Connections This section describes the RF cable connections for various types of RF modules.
RF Cable Connections for DRFUs The DRFU supports two carriers. The following description is based on the RF cable connections for DRFUs with a single sector.
Cable Connections in 1T2R Mode With one RX channel and two TX channels, the following items are configured for one carrier: l
A pair of dual-polarized antennas
l
One DRFU
Figure 5-87 describes the RF cable connections. Figure 5-87 Cable connections in 1T2R mode (1)
With one RX channel and two TX channels, the following items are configured for two carriers: l
A pair of dual-polarized antennas
l
One DRFU
Figure 5-87 shows the RF cable connections. With one RX channel and two TX channels, the following items are configured for four carriers: Issue 07 (2012-02-25)
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l
A pair of dual-polarized antennas
l
Two DRFUs
Figure 5-88 describes the RF cable connections. Figure 5-88 Cable connections in 1T2R mode (2)
Cable Connections in 2T2R Mode With two RX channels and two TX channels, the following items are configured for one carrier: l
A pair of dual-polarized antennas
l
One DRFU
Figure 5-87 shows the RF cable connections. With two RX channels and two TX channels, the following items are configured for two carriers: l
A pair of dual-polarized antennas
l
Two DRFUs
Figure 5-88 shows the RF cable connections.
RF Cable Connections for GRFUs The GRFU supports six carriers. The following description is based on the RF cable connections for GRFUs with a single sector. The GRFU supports only the 1T2R configuration. Issue 07 (2012-02-25)
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Cable Connections with Three Carriers The following items are configured for three carriers: l
A pair of dual-polarized antennas
l
One GRFU
Figure 5-89 describes the RF cable connections. Figure 5-89 Cable connections with three carriers
Cable Connections with Nine Carriers The following items are configured for nine carriers: l
A pair of dual-polarized antennas
l
Two GRFUs
Figure 5-90 describes the RF cable connections.
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Figure 5-90 Cable Connections with Nine Carriers
Cable Connections with 14 Carriers The following items are configured for 14 carriers: l
Two pairs of dual-polarized antennas
l
Three GRFUs
Figure 5-91 describes the RF cable connections.
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Figure 5-91 Cable connections with 14 carriers
Cable Connections with 24 Carriers The following items are configured for 24 carriers: l
Two pairs of dual-polarized antennas
l
Four GRFUs
Figure 5-92 describes the RF cable connections.
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Figure 5-92 Cable connections with 24 carriers
RF Cable Connections for WRFUs The WRFU supports four carriers. The following description is based on the RF cable connections for WRFUs with a single sector.
Cable Connections in 1T2R Mode With one RX channel and two TX channels, the following items are configured for one to four carriers: l
A pair of dual-polarized antennas
l
One WRFU
Figure 5-93 describes the RF cable connections.
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Figure 5-93 Cable connections in 1T2R mode (1)
With one RX channel and two TX channels, the following items are configured for five to eight carriers: l
A pair of dual-polarized antennas
l
Two WRFUs
Figure 5-94 describes the RF cable connections.
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Figure 5-94 Cable connections in 1T2R mode (2)
Cable Connections in 2T2R Mode With two RX channels and two TX channels, the following items are configured for one to four carriers: l
A pair of dual-polarized antennas
l
Two WRFUs
Figure 5-94 shows the RF cable connections.
Cable Connections in 2T4R Mode With two RX channels and four TX channels, the following items are configured for one to four carriers: l
Two pairs of dual-polarized antennas
l
Two WRFUs
Figure 5-95 describes the RF cable connections.
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Figure 5-95 Cable connections in 2T4R mode
Cable Connections in 2x2 MIMO Mode The base station in UMTS only mode supports 2x2 MIMO. Figure 5-94 shows the cable connections.
RF Cable Connections for WRFUd The WRFUd supports a maximum of six carriers. The following description is based on the RF cable connections for WRFUds with a single sector.
Cable Connections in 2T2R Mode With two RX channels and two TX channels, the following items are configured for one to four carriers: l
A pair of dual-polarized antennas
l
One WRFUd
Figure 5-96 shows the RF cable connections.
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Figure 5-96 Cable connections in 2T2R (I)
With two RX channels and two TX channels, the following items are configured for five to eight carriers: l
A pair of dual-polarized antennas
l
Two WRFUds.
Cable Connections in 4T4R Mode With four RX channels and four TX channels, the following items are configured for one to four carriers: l
Two pairs of dual-polarized antennas
l
Two WRFUds
Figure 5-97 shows the RF cable connections.
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Figure 5-97 Cable connections in 4T4R mode (II)
RF Cable Connections for LRFUs The LRFU supports a single carrier. The following description is based on the RF cable connections for LRFUs supporting a single sector. The LRFU supports only the 2T2R configuration.
RF Cable Connections in 2T2R Mode In 2T2R mode, the following items are configured: l
A dual-polarized antenna
l
An LRFU
Figure 5-98 shows RF cable connections.
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Figure 5-98 RF cable connections in 2T2R mode
RF Cable Connections in 4T4R mode In 4T4R mode, the following items are configured: l
Two dual-polarized antennas
l
Two LRFUs
Figure 5-99 shows RF cable connections.
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Figure 5-99 RF cable connections in 4T4R mode
RF Cable Connections for LRFUe The LRFUe supports one carrier. The following description is based on the RF cable connections for LRFUes with a single sector.
Cable Connections in 2T2R Mode With two RX channels and two TX channels, the following items are configured for one to four carriers: l
A pair of dual-polarized antennas
l
One LRFUe
Figure 5-100 shows the RF cable connections.
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Figure 5-100 Cable connections in 2T2R (I)
Cable Connections in 4T4R Mode With four RX channels and four TX channels, the following items are configured for one to four carriers: l
Two pairs of dual-polarized antennas
l
Two LRFUes
Figure 5-101 shows the RF cable connections.
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Figure 5-101 Cable connections in 4T4R mode (II)
RF Cable Connections for MRFUs The MRFU supports six carriers. The following description is based on the RF cable connections for MRFUs supporting a single sector. The MRFU supports only the 1T2R configuration.
RF Cable Connections in G3U1 mode When three GSM carriers and one UMTS carrier are configured, the following items are required: l
A dual-polarized antenna
l
An MRFU
Figure 5-102 shows RF cable connections.
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Figure 5-102 RF cable connections in G3U1 mode
RF Cable Connections in G9U1 mode When nine GSM carriers and one UMTS carrier are configured, the following items are required: l
A dual-polarized antenna
l
Two MRFUs
Figure 5-103 shows RF cable connections.
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Figure 5-103 RF cable connections in G9U1 mode
RF Cable Connections in G2U2 Mode When two GSM carriers and two UMTS carriers are configured, the following items are required: l
A dual-polarized antenna
l
An MRFU
Figure 5-102 shows RF cable connections.
RF Cable Connections in G6U2 Mode When six GSM carriers and two UMTS carriers are configured, the following items are required: l
A dual-polarized antenna
l
Two MRFUs
Figure 5-103 shows RF cable connections.
RF Cable Connections in G4L1 MIMO Mode When the MRFU works in LTE 2T2R MIMO mode, with four GSM carriers and one LTE carrier configured, the following items are required: l
A dual-polarized antenna
l
Two MRFUs
Figure 5-103 shows RF cable connections. Issue 07 (2012-02-25)
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RF Cable Connections in G8L1 MIMO Mode When the MRFU works in LTE 2T2R MIMO mode, with eight GSM carriers and one LTE carrier configured, the following items are required: l
A dual-polarized antenna
l
Two MRFUs
Figure 5-103 shows RF cable connections.
RF Cable Connections for MRFUd The MRFUd supports a maximum of eight GSM carriers, six UMTS carriers, or two LTE carriers. The following description is based on the RF cable connections for MRFUds with a single sector.
Cable Connections in 2T2R Mode With two RX channels and two TX channels, the following items are configured: l
A pair of dual-polarized antennas
l
One MRFUd
Figure 5-104 shows the RF cable connections. Figure 5-104 Cable connections in 2T2R
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Cable Connections in 4T4R Mode With four RX channels and four TX channels, the following items are configured: l
Two pairs of dual-polarized antennas
l
Two MRFUds
Figure 5-105 shows the RF cable connections. Figure 5-105 Cable connections in 4T4R mode
RF Cable Connections for MRFUe The MRFUe supports a maximum of eight GSM carriers, four UMTS carriers, or two LTE carriers. The following description is based on the RF cable connections for MRFUes with a single sector.
Cable Connections in 1T2R Mode With two RX channels and one TX channel, the following items are configured: l
A pair of dual-polarized antennas
l
One MRFUe
Figure 5-106 shows the RF cable connections.
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Figure 5-106 Cable connections in 1T2R
Cable Connections in 2T4R Mode With four RX channels and two TX channels, the following items are configured: l
Two pairs of dual-polarized antennas
l
Two MRFUes
Figure 5-107 shows the RF cable connections.
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Figure 5-107 Cable connections in 2T4R mode (II)
RF Cable Connections for MRFU V3 In single mode, the MRFU V3 supports a maximum of six GSM carriers, four UMTS carriers, or two LTE carriers. In GU or GL dual mode, the MRFU V3 supports a maximum of six carriers. The following description is based on the RF cable connections for MRFU V3s with a single sector.
Cable Connections in 1T2R Mode With two RX channels and one TX channel, the following items are configured: l
A pair of dual-polarized antennas
l
One MRFU V3
Figure 5-108 shows the RF cable connections.
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Figure 5-108 Cable connections in 1T2R
Cable Connections in 2T4R Mode With four RX channels and two TX channels, the following items are configured: l
Two pairs of dual-polarized antennas
l
Two MRFU V3s
Figure 5-109 shows the RF cable connections.
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Figure 5-109 Cable connections in 2T4R mode (II)
5.3 PGND Cables The PGND cables are used to ensure proper grounding of the cabinet and the modules in the cabinet.
PGND Cable for the Cabinet The PGND cable for the cabinet is green and yellow with a cross-sectional area of 25 mm2. Figure 5-110 shows the PGND cable for the cabinet. Figure 5-110 PGND cable for the cabinet
(1) OT terminal (25 mm2, M8)
PGND Cable for the Modules The PGND cable for the modules is green and yellow with a cross-sectional area of 6 mm2. Figure 5-111 shows the PGND cable for the modules. Issue 07 (2012-02-25)
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Figure 5-111 PGND cable for the modules
(1) OT terminal (6 mm2, M4)
5.4 Power Cable This section describes the power cable of the BTS3900L, which consists of the power cables for the BTS3900L cabinet, BBU3900, Fan box, and RFU.
5.4.1 Input Power Cables for the Cabinet The input power cable is used to feed -48 V DC power into the BTS3900L cabinet.
Exterior Figure 5-112 shows the input power cables for the cabinet. Figure 5-112 Input power cables for the cabinet
(1) OT terminal
Description Table 5-66 shows the input power cables for the cabinet. Table 5-66 Input power cables for the cabinet
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Cable
Color
Cross-Sectional Area
Aperture of the OT Terminal
Input power cables for the cabinet
Blue
35 mm2 for 1 X 160A
M8 M6
Black
16 mm2 for 2 X 80A
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The input power cables consists of two pairs of cables, with each pair containing a blue wire and a black wire.
5.4.2 BBU Power Cable Through a BBU power cable, the DCDU-11A feeds -48 V DC power into a BBU.
Exterior Figure 5-113 shows a BBU power cable. Figure 5-113 BBU power cable
(1) 3V3 power connector
(2) Tool-less female power connector (pressfit type)
Pin Assignment Table 5-67 describes the pin assignment for the wires of the BBU power cable. Table 5-67 Pin assignment for the wires of the BBU power cable Wire
X1 End
X2 End
Color Most Area
Other Area
W1
A3
B1
Black
Blue
W2
A1
B2
Blue
Grey
5.4.3 Power Cable for the FAN Box The power cable for the FAN box feeds -48 V DC power into the fan box.
Exterior Figure 5-114 shows a power cable for the fan box. Issue 07 (2012-02-25)
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Figure 5-114 Power cable for the fan box
(1) 3V3 power connector
(2) Tool-less female power connector (pressfit type)
Pin Assignment Table 5-68 describes the pin assignment for the wires of the power cable for the fan box. Table 5-68 Pin assignment for the wires of the power cable for the fan box Wire
X1 End
X2 End
Color Most Area
Other Area
W1
A3
B1
Black
Blue
W2
A1
B2
Blue
Grey
5.4.4 RFU Power Cable The RFU power cable feeds -48 V DC power into the RFU.
Exterior Figure 5-115 shows an RFU power cable. Figure 5-115 RFU power cable
(1) 3V3 power connector
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(2) Tool-less female power connector (pressfit type)
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Pin Assignment Table 5-69 describes the pin assignment for the wires of the RFU power cable. Table 5-69 Pin assignment for the wires of the RFU power cable Wire
X1 End
X2 End
Color Most Area
Other Area
W1
A3
B1
Black
Blue
W2
A1
B2
Blue
Grey
5.4.5 GATM Power Cable The GATM power cable feeds -48 V DC power into the GATM.
Exterior Figure 5-116 shows a GATM power cable. Figure 5-116 GATM power cable
(1) 3V3 power connector
(2) Tool-less female power connector (pressfit type)
Pin Assignment Table 5-70 describes the pin assignment for the wires of the GATM power cable. Table 5-70 Pin assignment for the wires of the GATM power cable Wire
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X1 End
X2 End
Color Most Area
Other Area
W1
A1
B2
Blue
Grey
W2
A3
B1
Black
Blue
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5.5 Transmission Cable This describes the BTS3900L transmission cable, which consists of the E1 cable, FE cable, FE Optical Cable, Cable Between two FE Electrical Ports, and Cable Between two FE Optical Ports.
5.5.1 E1/T1 Cable An E1/T1 cable transmits baseband signals from BBU to the external transmission equipment.
Exterior The E1/T1 cable is of three types: 75-ohm E1 coaxial cable, 120-ohm E1 twisted pair cable, and 120-ohm T1 twisted pair cable. One end of the E1 cable is a DB26 male connector. The connector at the other end of the cable is prepared on site based on site requirements. Figure 5-117 shows an E1/T1 cable. Figure 5-117 E1/T1 signal cable
(1) DB26 male connector
Table 5-71 lists different types of 75 ohm E1 coaxial cables. Table 5-71 Different types of 75 ohm E1 coaxial cables Cable
One End
The Other End
75 ohm E1 coaxial cable
DB26 male connector
L9 male connector L9 female connector SMB female connector BNC male connector SMZ male connector SMZ female connector
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Pin Assignment Table 5-72, Table 5-73, and Table 5-74 describe the pin assignment for the wires of the E1/T1 cable. NOTE
In Table 5-72, "Tip" refers to a wire in the E1 coaxial cable and "Ring" refers to an external conductor of the cable.
Table 5-72 Pin assignment for the wires of the 75-ohm E1 coaxial cable Pin on the DB26 Male Connector
Type
Coaxial Unit No.
Wire Label
X1.1
Tip
1
RX1+
X1.2
Ring
X1.3
Tip
X1.4
Ring
X1.5
Tip
X1.6
Ring
X1.7
Tip
X1.8
Ring
X1.19
Tip
X1.20
Ring
X1.21
Tip
X1.22
Ring
X1.23
Tip
X1.24
Ring
X1.25
Tip
X1.26
Ring
RX13
RX2+ RX2-
5
RX3+ RX3-
7
RX4+ RX4-
2
TX1+ TX1-
4
TX2+ TX2-
6
TX3+ TX3-
8
TX4+ TX4-
Table 5-73 Pin assignment for the wires of the 120-ohm E1 twisted pair cable
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Pin on the DB26 Male Connector
Wire Color
Wire Type
Wire Label
X.1
Blue
Twisted pair
RX1+
X.2
White
X.3
Orange
RX1Twisted pair
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Pin on the DB26 Male Connector
Wire Color
X.4
White
X.5
Green
X.6
White
X.7
Brown
X.8
White
X.19
Gray
X.20
White
X.21
Blue
X.22
Red
X.23
Orange
X.24
Red
X.25
Green
X.26
Red
Wire Type
Wire Label RX2-
Twisted pair
RX3+ RX3-
Twisted pair
RX4+ RX4-
Twisted pair
TX1+ TX1-
Twisted pair
TX2+ TX2-
Twisted pair
TX3+ TX3-
Twisted pair
TX4+ TX4-
Table 5-74 Pin assignment for the wires of the 100-ohm T1 twisted pair cable
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Pin on the DB26 Male Connector
Wire Color
Wire Type
Wire Label
X.1
Blue and white
Twisted pair
RX1+
X.2
White and blue
X.3
Orange and white
X.4
White and orange
X.5
Green and white
X.6
White and green
X.7
Brown and white
X.8
White and brown
X.19
Gray and white
X.20
White and gray
X.21
Blue and red
X.22
Red and blue
RX1Twisted pair
RX2+ RX2-
Twisted pair
RX3+ RX3-
Twisted pair
RX4+ RX4-
Twisted pair
TX1+ TX1-
Twisted pair
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TX2+ TX2-
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Pin on the DB26 Male Connector
Wire Color
Wire Type
Wire Label
X.23
Orange and red
Twisted pair
TX3+
X.24
Red and orange
X.25
Green and red
X.26
Red and green
TX3Twisted pair
TX4+ TX4-
5.5.2 FE/GE Cable The FE/GE cable connects the BBU to the external transmission equipment through routing equipment. It transmits baseband signals. NOTE
The maximum transmission distance of an FE/GE cable is 100 m (328.08 ft).
Exterior The FE/GE cable is a shielded straight-through cable, which has an RJ45 connector at each end. Figure 5-118 shows an FE/GE cable. Figure 5-118 FE/GE cable
(1) RJ45 connector
Pin Assignment Table 5-75 describes the pin assignment for the wires of the FE/GE cable. Table 5-75 Pin assignment for the wires of the FE/GE cable
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Pin on the RJ45 Connector
Wire Color
Wire Type
Pin on the RJ45 Connector
X1.2
Orange
Twisted pair
X2.2
X1.1
White and orange
X1.6
Green
X2.1 Twisted pair
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Pin on the RJ45 Connector
Wire Color
X1.3
White and green
X1.4
Blue
X1.5
White and blue
X1.8
Brown
X1.7
White and brown
Wire Type
Pin on the RJ45 Connector X2.3
Twisted pair
X2.4 X2.5
Twisted pair
X2.8 X2.7
5.5.3 FE/GE Fiber Optic Cable An FE/GE fiber optic cable transmits optical signals between the BBU3900 and the transmission equipment. This cable is optional.
Exterior The FE/GE fiber optic cable has an LC connector at one end and an FC connector, SC connector, or LC connector at the other end, as shown in Figure 5-119, Figure 5-120, Figure 5-121. Figure 5-119 FE/GE fiber optic cable (with the FC and LC connectors)
Figure 5-120 FE/GE fiber optic cable (with the SC and LC connectors)
Figure 5-121 FE/GE fiber optic cable (with the LC connectors)
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CAUTION To connect a BBU3900 and a transmission device by using FE/GE optical fiber patch cords, adhere to the following rules: l
The TX port on the BBU3900 must be connected to the RX port on the transmission equipment.
l
The RX port on the BBU3900 must be connected to the TX port on the transmission equipment.
5.5.4 Interconnection Cable Between the FE Electrical Ports This cable connects the FE electrical ports on the GTMU and WMPT to achieve co-transmission in IP mode.
Exterior The interconnection cable between the FE electrical ports has an RJ45 connector at each end, as shown in Figure 5-122. Figure 5-122 Interconnection cable between FE electrical ports
(1) RJ45 connector
5.5.5 Interconnection Cable Between FE Optical Ports This cable connects the FE optical ports on the GTMU and WMPT to achieve co-transmission in IP mode.
Exterior The interconnection cable between the FE optical ports has an LC connector at each end, as shown in Figure 5-123. Figure 5-123 Interconnection cable between FE optical ports
(1) LC connector
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5.6 CPRI Electrical Cable The CPRI electrical cable enables high speed communication between the BBU3900 and the RFU.
Exterior The CPRI electrical cable is an SFP high speed transmission cable that has an SFP20 male connector at each end, as shown in Figure 5-124. Figure 5-124 CPRI electrical cable
5.7 Signal Cable This section describes the BTS3900L signal cable, which consists of monitoring signal cable for the FAN unit, monitoring signal cable for the EMU, BBU alarm cable, GPS signal cable, and signal cable for the ELU.
5.7.1 Monitoring Signal Cable for the Fan Box The monitoring signal cable for the fan box is used for the BBU to monitor the running status of the fan box.
Exterior Figure 5-125 shows the monitoring signal cable for the fan box. Figure 5-125 Monitoring signal cable for the fan box
(1) RJ45 connector
Pin Assignment Table 5-76 describes the pin assignment for the wires of the monitoring signal cable for the fan box. Issue 07 (2012-02-25)
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Table 5-76 Pin assignment for the wires of the monitoring signal cable for the fan box X1 End
X2 End
Color
Type
X1.1
X2.1
White
Twisted pair cable
X1.2
X2.2
Orange
X1.3
X2.3
White
X1.6
X2.6
Green
X1.5
X2.5
White
X1.4
X2.4
Blue
X1.7
X2.7
White
X1.8
X2.8
Brown
Twisted pair cable
Twisted pair cable
Twisted pair cable
5.7.2 Fan Box Cascade Signal Cable Fan box cascade signal cable is used to connect two fan boxes.
Structure Figure 5-126 shows the fan box cascade signal cable. Figure 5-126 Fan box cascade signal cable
(1) RJ45 connector
Pin Assignment Table 5-77 describes the pin assignment of the fan box cascade signal cable. Table 5-77 Pin assignment of the fan box cascade signal cable
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X1 End
X2 End
Color
Type
X1.1
X2.1
White
Twisted pair cable
X1.2
X2.2
Orange
X1.3
X2.3
White
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X1 End
X2 End
Color
X1.6
X2.6
Green
X1.5
X2.5
White
X1.4
X2.4
Blue
X1.7
X2.7
White
X1.8
X2.8
Brown
Type
Twisted pair cable
Twisted pair cable
5.7.3 Monitoring Signal Cable for the EMU The monitoring signal cable for the EMU transmits monitoring signals from the EMU to the BBU.
Exterior Figure 5-127 shows the monitoring signal cable for the EMU. Figure 5-127 Monitoring signal cable for the EMU
(1) RJ45 connector
(2) DB9 male connector
Pin Assignment Table 5-78 describes the pin assignment for the wires of the monitoring signal cable for the EMU. Table 5-78 Pin assignment for the wires of the monitoring signal cable for the EMU
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Pin on the RJ-45 Connector
Pin on the DB9 Male Connector
Wire Color
Wire Type
Label
X1.1
X2.3
White
Twisted pair
TX+
X1.2
X2.7
Orange
X1.5
X2.6
White
X1.4
X2.2
Blue
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TXTwisted pair
RXRX+
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5.7.4 BBU Alarm Cable A BBU alarm cable transmits alarm signals from external alarm equipment to a BBU.
Exterior The BBU alarm cable has an RJ45 connector at each end, as shown in Figure 5-128. One RJ45 connector at one end, however, may be removed and an appropriate terminal may be added according to the field requirements. Figure 5-128 BBU alarm cable
(1) RJ45 connector
Pin Assignment Table 5-79 shows the wire sequence of the BBU alarm cable. Table 5-79 Pin assignment for the wires of the BBU alarm cable BBU Alarm Port
Pin on the RJ45 Connecto r
Wire Color
Wire Type
Pin on the RJ45 Connecto r
Description
EXTALM1
X1.1
White and orange
Twisted pair
X2.1
Boolean input 4+
X1.2
Orange
X2.2
Boolean input 4- (GND)
X1.3
White and green
X2.3
Boolean input 5+
X1.6
Green
X2.6
Boolean input 5- (GND)
X1.5
White and blue
X2.5
Boolean input 6+
X1.4
Blue
X2.4
Boolean input 6- (GND)
X1.7
White and brown
X2.7
Boolean input 7+
X1.8
Brown
X2.8
Boolean input 7- (GND)
X1.1
White and orange
X2.1
Boolean input 0+
EXTALM0 Issue 07 (2012-02-25)
Twisted pair
Twisted pair
Twisted pair
Twisted pair
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BBU Alarm Port
Pin on the RJ45 Connecto r
Wire Color
X1.2
Orange
X1.3
White and green
X1.6
Green
X1.5
White and blue
X1.4
Blue
X1.7
White and brown
X1.8
Brown
Wire Type
Twisted pair
Twisted pair
Twisted pair
Pin on the RJ45 Connecto r
Description
X2.2
Boolean input 0+ (GND)
X2.3
Boolean input 1+
X2.6
Boolean input 1- (GND)
X2.5
Boolean input 2+
X2.4
Boolean input 2- (GND)
X2.7
Boolean input 3+
X2.8
Boolean input 3- (GND)
5.7.5 GPS Clock Signal Cable The GPS clock signal cable is used to transmit GPS clock signals from the GPS antenna system to the BBU. The GPS clock signals serve as the clock reference of the BBU. This cable is optional.
Exterior The GPS clock signal cable has an SMA male connector at one end and an N-type female connector at the other end, as shown in Figure 5-129. Figure 5-129 GPS clock signal cable
(1) SMA male connector
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(2) N-type female connector
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5.7.6 Signal Cable for the ELU The signal cable for the ELU is used to report the cabinet type information detected by the ELU to the fan box.
Exterior Figure 5-130 shows the signal cable for the ELU. Figure 5-130 Signal cable for the ELU
(1) RJ45 connector
Pin Assignment Table 5-80 describes the pin assignment for the wires of the signal cable for the ELU. Table 5-80 Pin assignment for the wires of the signal cable for the ELU X1 End
X2 End
Wire Color
Wire Type
X1.1
X2.1
White
Twisted pair
X1.2
X2.2
Orange
X1.3
X2.3
White
X1.6
X2.6
Green
X1.5
X2.5
White
X1.4
X2.4
Blue
X1.7
X2.7
White
X1.8
X2.8
Brown
Twisted pair
Twisted pair
Twisted pair
5.7.7 Monitoring Signal Cable for the GATM This cable connects the BBU and GATM, enabling the BBU to transmit control signals to the GATM and enabling the GATM to report alarms to the BBU.
Structure Figure 5-131 shows the monitoring signal cable for the GATM. Issue 07 (2012-02-25)
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Figure 5-131 Monitoring signal cable for the GATM
(1) RJ45 connector
Pin Assignment Table 5-81 describes the pin assignment for the wires of the monitoring signal cable for the GATM. Table 5-81 Pin assignment for the wires of the monitoring signal cable for the GATM X1 End
X2 End
Wire Color
Wire Type
X1.1
X2.1
White
Twisted pair
X1.2
X2.2
Orange
X1.3
X2.3
White
X1.6
X2.6
Green
X1.5
X2.5
White
X1.4
X2.4
Blue
X1.7
X2.7
White
X1.8
X2.8
Brown
Twisted pair
Twisted pair
Twisted pair
5.8 RF Cable This section describes the BTS3900L RF cable, which consists of the RF jumper and inter-RFU RF signal cable.
5.8.1 RF Jumper The RF jumper connects the RFU and the feeder of the antenna system for signal exchange between the base station and the antenna system.
Exterior Figure 5-132 shows an RF jumper. Issue 07 (2012-02-25)
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Figure 5-132 RF jumper
(1) DIN straight male connector
(2) DIN elbow male connector
NOTE
Macro base stations use super-flexible 1/2-inch jumpers.
5.8.2 Inter-RFU RF Signal Cable The inter-RFU RF signal cable is used for transmitting the received diversity signals between two RFUs. The cable connects the RX IN port on one RFU and the RX OUT port on another RFU.
Structure Figure 5-133 shows the inter-RFU RF signal cable. Figure 5-133 Inter-RFU RF signal cable
(1) QMA elbow male connector
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