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BTS3900 GSM V300
Installation Guide Issue
13
Date
2010-10-30
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2010. 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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About This Document
About This Document Purpose This document describes installation of the BTS3900 cabinet, boards, modules, and cables. It also provides checklists for hardware installation.
Product Versions The following table lists the product versions related to this document. Product Name
Product Version
BTS3900 GSM
V300R008 V300R009 V100R012
Intended Audience l
Base station installation engineers
Organization 1 Changes in the BTS3900 GSM Installation Guide This chapter describes the changes in the BTS3900 GSM Installation Guide. 2 Preparing for Installation This section describes the tools and meters that need to be available before the installation. It also describes the skills and qualifications that the installation engineers must possess. 3 Information About the Installation BTS3900 cabinets can be classified into -48 V cabinet, +24 V cabinet, and +220 V cabinet. You need to familiarize yourself with the related information and clearance requirements before the cabinet installation. Issue 13 (2010-10-30)
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About This Document
4 Unpacking the Equipment You need to unpack and check the delivered equipment and ensure that all the materials are included and intact. 5 Obtaining the ESN The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). The ESN is used during the commissioning of a base station. 6 Installation Procedure The BTS3900 cabinets are delivered with boards installed. The installation procedure on site involves installing the base, installing the cabinet, and installing the cables. For the vehiclemounted cabinet, the base is not required, and the vibration isolators and dampers needs to be installed. In addition, some optional components can be installed on site as required. 7 Checking the Installed Modules and Cables The internal modules and cables are installed in the cabinet before delivery. You need to check that the modules and cables are securely connected. 8 Installing the Vibration Isolators and Dampers Four vibration isolators need to be installed at the bottom of the vehicle-mounted cabinet, and two dampers need to be installed at the back of the cabinet. 9 Installing the Base The BTS3900 cabinet must be installed on the base. The base can be installed on the concrete floor or ESD floor according to the equipment room conditions and customer requirements. 10 Installing the Cabinet The BTS3900 cabinets can be flexibly installed. In different scenarios, a single cabinet can be separately installed and two cabinets can be installed side-by-side or stacked. 11 Installing the PGND Cable and Equipotential Cable The equipotential PGND cable is used to connect the PGND bolts on the cabinets to the PGND grounding bars on site, ensuring that the cabinets are properly grounded. The equipotential cable is used to connect the PGND bolts on the cabinets, ensuring the equipotential connections between the cabinets. 12 (Optional) Installing the Modules The mandatory modules in the cabinet are already installed. The optional modules can be installed on site according to different field requirements. 13 Installing the Cables The BTS3900 cabinet is delivered with boards installed, and the internal cables are already installed. Therefore, only the external cables and cables for the optional modules need to be installed on site. 14 Installation Checklist After the cabinets and devices are all installed, you need to check the installation items, installation environment, and cable-related items. 15 Performing the Power-On Check iv
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About This Document
Before the cabinets are put into use, you need to check the power-on status of the cabinets.
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. 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.
Command Conventions The command conventions that may be found in this document are defined as follows.
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Convention
Description
Boldface
The keywords of a command line are in boldface.
Italic
Command arguments are in italics. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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About This Document
Convention
Description
[]
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.
Mouse Operations 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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Contents
Contents About This Document...................................................................................................................iii 1 Changes in the BTS3900 GSM Installation Guide..............................................................1-1 2 Preparing for Installation.........................................................................................................2-1 2.1 Preparing Tools and Meters............................................................................................................................ 2-2 2.2 Skills and Qualifications of Installation Engineers.........................................................................................2-2
3 Information About the Installation........................................................................................3-1 3.1 Hardware Structure of the BTS3900 Cabinet (-48 V).....................................................................................3-2 3.2 Hardware Structure of the BTS3900 Cabinet (+24 V)....................................................................................3-3 3.3 Hardware Structure of the BTS3900 Cabinet (220 V)....................................................................................3-4 3.4 Installation Clearance and Position Requirements..........................................................................................3-5
4 Unpacking the Equipment.......................................................................................................4-1 5 Obtaining the ESN.....................................................................................................................5-1 6 Installation Procedure...............................................................................................................6-1 7 Checking the Installed Modules and Cables........................................................................7-1 8 Installing the Vibration Isolators and Dampers .................................................................8-1 9 Installing the Base......................................................................................................................9-1 9.1 Installing the Base on the Concrete Floor.......................................................................................................9-2 9.2 Installing the Base on the ESD Floor..............................................................................................................9-5
10 Installing the Cabinet............................................................................................................10-1 10.1 Installing the Vehicle-mounted Cabinet......................................................................................................10-2 10.2 Installing a Single Cabinet Separately........................................................................................................10-3 10.3 Installing Two Cabinets Side-by-Side.........................................................................................................10-5 10.4 Stacking Two Cabinets................................................................................................................................10-6
11 Installing the PGND Cable and Equipotential Cable....................................................11-1 12 (Optional) Installing the Modules......................................................................................12-1 12.1 Installing the GPS Surge Protector..............................................................................................................12-2 12.2 Installing the DDF.......................................................................................................................................12-3 12.3 Installing the GATM and Bias-Tee.............................................................................................................12-5 Issue 13 (2010-10-30)
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13 Installing the Cables..............................................................................................................13-1 13.1 Cabling Requirements.................................................................................................................................13-2 13.2 Cable Routing Principles.............................................................................................................................13-3 13.3 Installing the Power Cables.........................................................................................................................13-4 13.3.1 Installing the Input Power Cable for the -48 V Cabinet.....................................................................13-5 13.3.2 Installing the Input Power Cable for the +24 V Cabinet....................................................................13-6 13.3.3 Installing the Input Power Cable for the 220 V Cabinet....................................................................13-7 13.4 Installing the Transmission Cables.............................................................................................................13-9 13.4.1 Installing the E1/T1 Cable................................................................................................................13-10 13.4.2 Installing the FE/GE Cable..............................................................................................................13-11 13.5 Installing the CPRI Cables Between the Cabinets....................................................................................13-11 13.6 Installing the Monitoring Signal Cable (Optional) Between Two Cabinets.............................................13-13 13.6.1 Installing the Cascading Signal Cable for the Fan Units.................................................................13-14 13.6.2 Installing the In-Position Signal Cable for the PSU (DC/DC).........................................................13-15 13.6.3 Installing the Monitoring Signal Cable for the PSU (DC/DC)........................................................13-17 13.7 Installing the Monitoring Signal Cable for the EMU................................................................................13-19 13.8 Installing the RF Jumper...........................................................................................................................13-20
14 Installation Checklist............................................................................................................14-1 15 Performing the Power-On Check........................................................................................15-1
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Figures
Figures Figure 3-1 BTS3900 cabinet (-48 V) in typical configuration.............................................................................3-2 Figure 3-2 BTS3900 cabinet (-48 V) in full configuration..................................................................................3-2 Figure 3-3 BTS3900 cabinet (+24 V) in typical configuration............................................................................3-3 Figure 3-4 BTS3900 cabinet (+24 V) in full configuration................................................................................. 3-3 Figure 3-5 BTS3900 cabinet (220 V) in typical configuration............................................................................ 3-4 Figure 3-6 BTS3900 cabinet (220 V) in full configuration..................................................................................3-4 Figure 3-7 Cabinet installation clearance requirements.......................................................................................3-5 Figure 3-8 Cabinet layout requirements...............................................................................................................3-6 Figure 3-9 Installation clearance requirements for the cabinet............................................................................3-6 Figure 5-1 Obtaining the ESN (1)........................................................................................................................5-1 Figure 5-2 Obtaining the ESN (2)........................................................................................................................5-2 Figure 6-1 Installation procedure.........................................................................................................................6-2 Figure 7-1 Internal power cables..........................................................................................................................7-2 Figure 7-2 Internal signal cables..........................................................................................................................7-4 Figure 8-1 Installation positions...........................................................................................................................8-1 Figure 8-2 Tightening screws...............................................................................................................................8-2 Figure 9-1 Positioning the cabinet........................................................................................................................9-2 Figure 9-2 Drilling a hole and installing an expansion bolt assembly.................................................................9-2 Figure 9-3 Fixing the base....................................................................................................................................9-3 Figure 9-4 Checking the base level......................................................................................................................9-4 Figure 9-5 Measuring the resistance between the adjusting bolt and the expansion bolt.................................... 9-4 Figure 9-6 Support for installing the ESD floor ..................................................................................................9-5 Figure 9-7 Drilling a hole on the ESD floor.........................................................................................................9-6 Figure 9-8 Positions of the access holes in the support and holes in the ESD floor............................................9-7 Figure 9-9 Marking the positions of the mounting holes.....................................................................................9-7 Figure 9-10 Securing the supports for installing the ESD floor...........................................................................9-8 Figure 10-1 Securing the cabinet on the plate....................................................................................................10-2 Figure 10-2 Securing the supports and dampers................................................................................................10-3 Figure 10-3 Removing the cabinet door.............................................................................................................10-4 Figure 10-4 Installing the cabinet door..............................................................................................................10-4 Figure 10-5 Installing the cabinet.......................................................................................................................10-5 Figure 10-6 Removing the connecting pieces....................................................................................................10-6 Figure 10-7 Installing the connecting pieces......................................................................................................10-6 Issue 13 (2010-10-30)
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Figures
Figure 10-8 Removing the rubber screws and connecting pieces......................................................................10-7 Figure 10-9 Removing the cover plate...............................................................................................................10-7 Figure 10-10 Securing the cabinet......................................................................................................................10-8 Figure 11-1 Installing the OT terminal in a correct way....................................................................................11-2 Figure 11-2 Installing the PGND cable for the BTS3900 cabinet (-48 V DC)..................................................11-2 Figure 11-3 Installing the PGND cable for the BTS3900 cabinet (+24 V DC).................................................11-3 Figure 11-4 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (-48 V DC)..........11-4 Figure 11-5 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (+24 V DC).........11-4 Figure 11-6 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (-48 V DC)..........11-5 Figure 12-1 Installing the support for the GPS surge protector.........................................................................12-2 Figure 12-2 Installing the GPS signal cable.......................................................................................................12-2 Figure 12-3 Installing the GPS surge protector..................................................................................................12-3 Figure 12-4 DDF cable distribution effect.........................................................................................................12-4 Figure 12-5 Installing the DDF in the BTS3900................................................................................................12-5 Figure 12-6 Cable connection ports of the straight DIN Bias-Tee.....................................................................12-6 Figure 12-7 Cable connections...........................................................................................................................12-7 Figure 12-8 Installing the straight DIN Bias-Tee...............................................................................................12-8 Figure 13-1 Cable routing in a single cabinet....................................................................................................13-4 Figure 13-2 Cable routing in stacked cabinets...................................................................................................13-4 Figure 13-3 Installing the -48 V input power cable...........................................................................................13-6 Figure 13-4 Installing the +24 V input power cable..........................................................................................13-7 Figure 13-5 Adding an OT terminals to the power cable...................................................................................13-8 Figure 13-6 220 V AC single-phase power cable..............................................................................................13-8 Figure 13-7 220 V AC three-phase power cable................................................................................................13-9 Figure 13-8 110 V AC dual-live-wire power cable............................................................................................13-9 Figure 13-9 Installing the E1/T1 cable (1).......................................................................................................13-10 Figure 13-10 Installing the E1/T1 cable (2).....................................................................................................13-10 Figure 13-11 Installing the FE/GE cable..........................................................................................................13-11 Figure 13-12 CPRI cable connections between two cabinets installed side-by-side.......................................13-12 Figure 13-13 CPRI cable connections between stacked cabinets....................................................................13-13 Figure 13-14 Connection of the signal cable between combined cabinets......................................................13-14 Figure 13-15 Connection of the signal cable between stacked cabinets..........................................................13-15 Figure 13-16 Connection of the signal cable between combined cabinets......................................................13-16 Figure 13-17 Connection of the signal cable between stacked cabinets..........................................................13-17 Figure 13-18 Connection of the signal cable between combined cabinets......................................................13-18 Figure 13-19 Connection of the signal cable between stacked cabinets..........................................................13-19 Figure 13-20 Installing RF jumpers in a single cabinet...................................................................................13-20 Figure 13-21 Installing RF jumpers in stacked cabinets..................................................................................13-21 Figure 15-1 Power-on check procedure.............................................................................................................15-2
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Tables
Tables Table 7-1 Internal power cable.............................................................................................................................7-2 Table 7-2 Internal signal cables............................................................................................................................7-4 Table 9-1 Height of the support for installing the ESD floor...............................................................................9-6 Table 11-1 Specifications of the PGND cable and equipotential cable..............................................................11-1 Table 12-1 Cable connections of the straight DIN Bias-Tee..............................................................................12-6 Table 14-1 Cabinet installation checklist...........................................................................................................14-1 Table 14-2 Installation environment checklist...................................................................................................14-1 Table 14-3 Electric connection checklist of the cabinet.....................................................................................14-2
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1
1 Changes in the BTS3900 GSM Installation Guide
Changes in the BTS3900 GSM Installation Guide This chapter describes the changes in the BTS3900 GSM Installation Guide.
13 (2010-10-30) This is the twelfth commercial release. Compared with issue 12 (2010-09-03), no information is added. Compared with issue 12 (2010-09-03), this issue incorporates the following change: Content
Change Description
About This Document
The version number changes from V300R012 to V100R012.
Compared with issue 12 (2010-09-03), no information is deleted.
12 (2010-09-03) This is the eleventh commercial release. Compared with issue 11 (2010-07-30), this issue is added with the following topic: l
13.6 Installing the Monitoring Signal Cable (Optional) Between Two Cabinets
Compared with issue 10 (2010-06-30), no information is modified. Compared with issue 11 (2010-07-30), Installing the CPRI cables between the cabinets is deleted.
11 (2010-07-30) This is the tenth commercial release. Compared with issue 10 (2010-06-30), this issue is added with the following topic: l Issue 13 (2010-10-30)
12.2 Installing the DDF Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Compared with issue 10 (2010-06-30), no information is modified. Compared with issue 10 (2010-06-30), no information is deleted.
10 (2010-06-30) This is the ninth commercial release. Compared with issue 09 (2010-05-10), no information is added. Compared with issue 09 (2010-05-10), this issue incorporates the following change: Content
Change Description
12.3 Installing the GATM and Bias-Tee
This describes the procedures and precautions for the installation of the GATM and Bias-Tee when they are used together with the DRFU.
Compared with issue 09 (2010-05-10), no information is deleted.
09 (2010-05-10) This is the eighth commercial release. Compared with issue 08 (2010-04-10), no information is added. Compared with issue 08 (2010-04-10), there are some editorial changes. Compared with issue 08 (2010-04-10), no information is deleted.
08 (2010-04-10) This is the seventh commercial release. Compared with issue 07 (2010-03-15), no information is added. Compared with issue 07 (2010-03-15), this issue incorporates the following change: Content
Change Description
13.4.1 Installing the E1/T1 Cable
The procedure for installation is modified.
Compared with issue 07 (2010-03-15), no information is deleted.
07 (2010-03-15) This is the sixth commercial release. Compared with issue 06 (2010-01-30), this issue is added with the following topic: l
3 Information About the Installation
Compared with issue 06 (2010-01-30), no information is modified. 1-2
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Compared with issue 06 (2010-01-30), no information is deleted.
06 (2010-01-30) This is the fifth commercial release. Compared with issue 05 (2009-12-30), this issue is added with the following topic: l
5 Obtaining the ESN
Compared with issue 05 (2009-12-30), this issue incorporates the following change: Content
Change Description
9.1 Installing the Base on the Concrete Floor
The base is changed.
9.2 Installing the Base on the ESD Floor
Compared with issue 05 (2009-12-30), no information is deleted.
05 (2009-12-30) This is the fourth commercial release. Compared with issue 04 (2009-09-30), no topic is added. Compared with issue 04 (2009-09-30), this issue incorporates the following change: Content
Change Description
3.4 Installation Clearance and Position Requirements
The description of vehicle-mounted cabinet is added.
6 Installation Procedure 8 Installing the Vibration Isolators and Dampers 10.1 Installing the Vehicle-mounted Cabinet
Compared with issue 04 (2009-09-30), no topic is deleted.
04 (2009-09-30) This is the third commercial release. Compared with issue 03 (2009-07-15), no information is added. Compared with issue 03 (2009-07-15), there are some editorial changes. Compared with issue 03 (2009-07-15), no information is deleted. Issue 13 (2010-10-30)
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1 Changes in the BTS3900 GSM Installation Guide
BTS3900 GSM Installation Guide
03 (2009-07-15) This is the second commercial release. Compared with issue 02 (2009-04-20), no information is added. Compared with issue 02 (2009-04-20), there are some editorial changes. Compared with issue 02 (2009-04-20), no information is deleted.
02 (2009-04-20) This is the first commercial release. Compared with issue 01 (2009-03-31), no information is added. Compared with issue 01 (2009-03-31), there are some editorial changes. Compared with issue 01 (2009-03-31), no information is deleted..
01 (2009-03-31) This is the draft release.
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2 Preparing for Installation
2
Preparing for Installation
About This Chapter This section describes the tools and meters that need to be available before the installation. It also describes the skills and qualifications that the installation engineers must possess. 2.1 Preparing Tools and Meters This section describes the tools and meters that need to be prepared before installation. 2.2 Skills and Qualifications of Installation Engineers Installation engineers must obtain related qualifications and master proper operation skills after being trained for safety precautions.
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2 Preparing for Installation
2.1 Preparing Tools and Meters This section describes the tools and meters that need to be prepared before installation. Marking pen
Phillips screwdriver (M3 to M6)
Diagonal pliers
Flat-head screwdriver (M3 to M6)
Combination wrench (capacity 32 mm)
Socket wrench
Torque wrench
Power cable crimping tool
RJ11 crimping tool
Cable cutter
Rubber mallet
Soldering iron
Wire stripper
Hammer drill (Ø16)
Heat gun
Level
Multimeter
Measuring tape
Vacuum cleaner
2.2 Skills and Qualifications of Installation Engineers Installation engineers must obtain related qualifications and master proper operation skills after being trained for safety precautions. 2-2
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Customers must meet the following requirements regarding installation engineers: l
Installation engineers must take Huawei trainings.
l
The number of installation engineers is determined based on engineering progress and installation environment. Three to five installation engineers are recommended.
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3
Information About the Installation
About This Chapter BTS3900 cabinets can be classified into -48 V cabinet, +24 V cabinet, and +220 V cabinet. You need to familiarize yourself with the related information and clearance requirements before the cabinet installation. 3.1 Hardware Structure of the BTS3900 Cabinet (-48 V) The BTS3900 cabinet (-48 V) houses the RFUs, fan box, BBU, and DCDU-01. In addition, spare space in the cabinet is available for customer equipment. 3.2 Hardware Structure of the BTS3900 Cabinet (+24 V) The BTS3900 cabinet (+24 V) houses the RFUs, fan box, BBU, DCDU-01, and PSUs (DC/DC). 3.3 Hardware Structure of the BTS3900 Cabinet (220 V) The BTS3900 cabinet (220 V) houses the RFUs, fan box, BBU, DCDU-01, PSUs (AC/DC), and PMU. 3.4 Installation Clearance and Position Requirements The installation of cabinets must meet the requirements of the proper design, practical installation, and elegant layout.
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3.1 Hardware Structure of the BTS3900 Cabinet (-48 V) The BTS3900 cabinet (-48 V) houses the RFUs, fan box, BBU, and DCDU-01. In addition, spare space in the cabinet is available for customer equipment. The BTS3900 cabinet (-48 V) can house three RFUs in typical configuration or six RFUs in full configuration. Figure 3-1 and Figure 3-2 show the BTS3900 cabinet (-48 V) in typical configuration and in full configuration respectively. Figure 3-1 BTS3900 cabinet (-48 V) in typical configuration
Figure 3-2 BTS3900 cabinet (-48 V) in full configuration
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3.2 Hardware Structure of the BTS3900 Cabinet (+24 V) The BTS3900 cabinet (+24 V) houses the RFUs, fan box, BBU, DCDU-01, and PSUs (DC/DC). The BTS3900 cabinet (+24 V) supports the 3RFU typical configuration and the 6RFU full configuration. Figure 3-3 and Figure 3-4 show the BTS3900 cabinet (+24 V) in typical configuration and in full configuration respectively. Figure 3-3 BTS3900 cabinet (+24 V) in typical configuration
Figure 3-4 BTS3900 cabinet (+24 V) in full configuration
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3.3 Hardware Structure of the BTS3900 Cabinet (220 V) The BTS3900 cabinet (220 V) houses the RFUs, fan box, BBU, DCDU-01, PSUs (AC/DC), and PMU. The BTS3900 cabinet (220 V) supports the 3RFU typical configuration and the 6RFU full configuration. Figure 3-5 and Figure 3-6 show the BTS3900 cabinet (220 V) in typical configuration and in full configuration respectively. Figure 3-5 BTS3900 cabinet (220 V) in typical configuration
Figure 3-6 BTS3900 cabinet (220 V) in full configuration
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3.4 Installation Clearance and Position Requirements The installation of cabinets must meet the requirements of the proper design, practical installation, and elegant layout.
Installation Clearance Requirements The clearance requirements for the BTS3900 cabinets are as follows: l
The cabinet can be installed with its back against the wall.
l
The cabinet can be installed with one side against the wall.
l
At least 800 mm in front of the cabinet should be reserved for maintenance.
l
At least 200 mm on top of the cabinet should be reserved for cabling.
Figure 3-7 shows the installation clearance requirements when a single cabinet is installed, two cabinets are installed side-by-side, and two cabinets are stacked. Figure 3-7 Cabinet installation clearance requirements
Cabinet Layout Requirements The layout requirements for the BTS3900 cabinets are as follows: l
The cabinets are as close to the feeder window as possible so that the feeders can be saved in length.
l
The cabinets are installed in a row in the same equipment room for easy cabling.
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l
No space is reserved for the cabinets and other devices if they are installed side-by-side.
Figure 3-8 shows the layout requirements (unit: mm) for the installation of the BTS3900 cabinets. Figure 3-8 Cabinet layout requirements
Clearance Requirements for the Vehicle Cabinet The clearance requirements for the vehicle cabinet are as follows: l
At least 800 mm in front of the cabinet is reserved.
l
At least 800 mm on top of the cabinet is reserved.
Figure 3-9 shows the installation clearance requirements for the cabinet. Figure 3-9 Installation clearance requirements for the cabinet
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3 Information About the Installation
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4 Unpacking the Equipment
4
Unpacking the Equipment
You need to unpack and check the delivered equipment and ensure that all the materials are included and intact.
Context NOTE
When transporting, lifting, or installing the equipment or components, you must: l
Prevent them from colliding with doors, walls, shelves, or other objects.
l
Wear clean gloves, and avoid touching the equipment or components with bare hands or sweat-soaked or dirty gloves.
Procedure Step 1 Check whether the total number of components in each case matches that in the packing list. If...
Then...
The total number matches that in the packing list
Go to Step 2.
The total number does not match that in the Find out the cause and report it to the local packing list Huawei office. Step 2 Check whether the packing case is in good condition. If...
Then...
The outer packing is in good condition
Go to Step 3.
The outer packing is severely damaged or Find out the cause and report it to the local soaked Huawei office. Step 3 Check the type and quantity of the equipment in the cases according to the packing list. Issue 13 (2010-10-30)
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4 Unpacking the Equipment
If...
Then...
Types and quantity of the components are Sign the packing list with the customer. in conformity with those on the packing list There is wrong delivery or shortage of components
Fill in the Cargo Shortage and Miscarriage Report and submit it.
There are damaged components
Fill in the Goods Replacement Report and submit it.
WARNING To protect the equipment and help find out the cause for any damage in the future, you need to keep the unpacked equipment and packing materials in indoor environment, take photos of the stocking environment, rusted or eroded equipment, packing case or carton, and packing materials, and then file the photos. ----End
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5 Obtaining the ESN
5
Obtaining the ESN
The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). The ESN is used during the commissioning of a base station.
Procedure Step 1 Record the ESN on the BBU. l If there is not a label on the FAN unit of the BBU, you must record the ESN and site information that is printed on a mounting ear of the BBU. Figure 5-1 shows the position of the ESN. l 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. In this case, you must take the label and record the site information on the side labeled Site, as shown in Figure 5-2. Figure 5-1 Obtaining the ESN (1)
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5 Obtaining the ESN
Figure 5-2 Obtaining the ESN (2)
Step 2 Report the ESN to the engineer for the commissioning of the base station. Step 3 Close and lock the cabinet door. ----End
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6 Installation Procedure
6
Installation Procedure
The BTS3900 cabinets are delivered with boards installed. The installation procedure on site involves installing the base, installing the cabinet, and installing the cables. For the vehiclemounted cabinet, the base is not required, and the vibration isolators and dampers needs to be installed. In addition, some optional components can be installed on site as required. Figure 6-1 shows the installation procedure.
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Figure 6-1 Installation procedure
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7
7 Checking the Installed Modules and Cables
Checking the Installed Modules and Cables The internal modules and cables are installed in the cabinet before delivery. You need to check that the modules and cables are securely connected.
Module Checklist The modules are securely connected to the cabinet, and the screws are tightened.
Cable Checklist Check whether the power cables and screws are properly and securely fixed in the cabinet by referring to Figure 7-1 and Table 7-1.
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Figure 7-1 Internal power cables
(1) -48 V cabinet
(2) +24 V cabinet
(3) AC cabinet
Table 7-1 Internal power cable SN
7-2
Cable
One end
The other end
Connector
Installation Position
Connector
Installation Position
P1 to P6
RFU Power Cable
3V3 power connector
PWR port on the RFU
Parallel terminal
Ports RFU0 to RFU5 on the DCDU-01
P7
Fan Box Power Cable
3V3 power connector
-48 V port of the fan box
Parallel terminal
FAN port on the DCDU-01
P8
BBU Power Cable
3V3 power connector
PWR port on the UPEU
Parallel terminal
BBU port on the DCDU-01
P9
DCDU-01 Power Cable
OT terminal
RTN(+) port on the DCDU-01
OT terminal
RTN(+) wiring terminal for power output of the power subrack (DC/ DC)
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7 Checking the Installed Modules and Cables
SN
Cable
One end
The other end
Connector
Installation Position
Connector
Installation Position
P10
DCDU-01 Power Cable
OT terminal
NEG(-) port on the DCDU-01
OT terminal
LOAD(-) wiring terminal for power output of the power subrack (DC/ DC)
P11
DCDU-01 Power Cable
OT terminal
RTN(+) port on the DCDU-01
OT terminal
RTN(+) wiring terminal for power output of the power subrack (AC/ DC)
P12
DCDU-01 Power Cable
OT terminal
NEG(-) port on the DCDU-01
OT terminal
LOAD1(-) or LOAD2(-) wiring terminal for power output of the power subrack (AC/ DC)
Check whether the signal cables and screws are properly and securely fixed in the cabinet by referring to Figure 7-2 and Table 7-2.
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7 Checking the Installed Modules and Cables
Figure 7-2 Internal signal cables
(1) -48 V cabinet
(2) +24 V cabinet
(3) AC cabinet
Table 7-2 Internal signal cables SN
7-4
Cable
One end
The other end
Connector
Installation Position
Connector
Installation Position
S1
Monitoring signal cable for the fan box
RJ-45
COM IN port of the fan box
RJ-45
MON0 port on the UPEU
S2
ELU signal cable
RJ-45
SENSOR port of the fan box
RJ-45
ELU
S3
Monitoring signal cable for the PSU (DC/DC)
Cord end terminal
ALM port of the power subrack (DC/ DC)
RJ-45
EXT-ALM0 port on the UPEU
S4
In-position signal cable for the PSU (DC/DC)
RJ-45
PRESENT port of the power subrack (DC/DC)
RJ-45
EXT-ALM1 port on the UPEU
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7 Checking the Installed Modules and Cables
SN
S5
Cable
Monitoring signal cable for the PMU
One end
The other end
Connector
Installation Position
Connector
Installation Position
RJ-45
RS232/ RS422 port on the PMU
RJ-45
MON1 port on the UPEU
Check and ensure the secure connections of the CPRI cables, which are installed inside the cabinets based on different configurations of the cabinets before delivery. For details about how to remove and insert the CPRI cable, see Inserting and Removing CPRI Cables.
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8 Installing the Vibration Isolators and Dampers
8
Installing the Vibration Isolators and Dampers
Four vibration isolators need to be installed at the bottom of the vehicle-mounted cabinet, and two dampers need to be installed at the back of the cabinet.
Procedure Step 1 Determine the installation positions for the vibration isolators and dampers by referring to Figure 8-1 and 3.4 Installation Clearance and Position Requirements. Figure 8-1 Installation positions
A ×2
B
310mm
1048.5mm
150.7mm
158mm
77mm
405mm
405mm
×4
Step 2 Place the plate on the vibration isolators by using a torque wrench until the tightening torque reaches 45 N·m, as shown in Figure 8-2.
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8 Installing the Vibration Isolators and Dampers
BTS3900 GSM Installation Guide
Figure 8-2 Tightening screws
----End
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9 Installing the Base
9
Installing the Base
About This Chapter The BTS3900 cabinet must be installed on the base. The base can be installed on the concrete floor or ESD floor according to the equipment room conditions and customer requirements. 9.1 Installing the Base on the Concrete Floor This section describes the procedure and precautions to be taken for installing the base on the concrete floor. 9.2 Installing the Base on the ESD Floor This section describes the procedure and precautions to be taken for installing the base on the ESD floor.
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9.1 Installing the Base on the Concrete Floor This section describes the procedure and precautions to be taken for installing the base on the concrete floor.
Procedure Step 1 Determine the position of the cabinet by referring to the marking template, as shown in Figure 9-1. Figure 9-1 Positioning the cabinet
(1) Anchor hole
(2) Concrete floor
(3) Marking template
Step 2 Drill a hole at each anchor point, and then install the expansion bolt assembly, as shown in Figure 9-2. Figure 9-2 Drilling a hole and installing an expansion bolt assembly
(1) M12x60 bolt
9-2
(2) Spring washer
(3) Flat washer
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(4) Expansion tube
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1.
Use the percussion drill with bit 16 to drill holes at the anchor points, and ensure that the depth of each hole ranges from 52 mm to 60 mm.
WARNING Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2.
Use a vacuum cleaner to clear the dust inside and around the holes. If the inter-hole spacing is too wide or too narrow, locate and drill holes again.
3.
Slightly tighten the expansion bolt, and then put the expansion bolt assembly into the hole vertically.
4.
Use a rubber mallet to hammer the expansion bolt until the expansion tube is buried into the hole.
5.
Remove the M12x60 bolt, spring washer, and flat washer from each expansion bolt assembly in sequence.
WARNING After disassembling the expansion bolt assembly, ensure that the top of the expansion tube is on the same level as the floor. Step 3 Install the base and adjust the base level. 1.
Place the insulating spacer and the base on the floor, align the mounting holes in the base and in the insulating spacers with the holes of the expansion bolts in the floor, and then use four M12x60 bolts to secure the base, as shown in Figure 9-3. Figure 9-3 Fixing the base
(1) M12x60 bolt
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(2) Spring washer
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(3) Flat washer
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9 Installing the Base (4) Insulating washer
2.
(5) Insulating spacers
-
Check and adjust the base level. Place the level on the top plane of the base to check the base level, as shown in Figure 9-4. If the bubble is not in the middle of the level, adjust the base level through the adjusting bolts. Figure 9-4 Checking the base level
(1) Adjusting bolt
(2) Level
Step 4 Test the insulation between the base and the expansion bolt. 1.
Set the multimeter to the megohm position (MΩ).
2.
Measure the resistance between the adjusting bolt and the expansion bolt, as shown in Figure 9-5. Figure 9-5 Measuring the resistance between the adjusting bolt and the expansion bolt
9-4
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9 Installing the Base
l If the resistance is less than five megohms, you can infer that the base is not insulated from the floor. Go to Step 4.3. l If the resistance is greater than or equal to five megohms, you can infer that the base is insulated from the floor. End the test. 3.
Dissemble the expansion bolt assembly, and check whether insulating washers are missed or damaged. l If insulating washers are missed or damaged, reinstall them, and then adjust the base level. l If no insulating washers are missed or damaged, check whether the multimeter is faulty or whether the setting is correct.
----End
9.2 Installing the Base on the ESD Floor This section describes the procedure and precautions to be taken for installing the base on the ESD floor.
Context Figure 9-6 shows the support for installing the ESD floor. Figure 9-6 Support for installing the ESD floor
(1) Mounting holes for the ESD floor (2) Frames
(3) Mounting hole for the concrete floor
The support for installing the ESD floor on which the cabinet is installed is of two types: support with fixed height and support with adjustable height. Table 9-1 lists the relations between the two types of supports and the height of the ESD floor.
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Table 9-1 Height of the support for installing the ESD floor Type of the Support
Height of the ESD Floor (Unit: mm)
Support with fixed height
296 to 495
Support with adjustable height
At least 120; adjustable according to the height of the floor
NOTE
Height of the ESD floor refers to the spacing between the concrete floor and the upper surface of the ESD floor.
Procedure Step 1 Determine the installation position of the cabinet on the ESD floor by referring to Installing the Cabinet on the Concrete Floor Step 1. Step 2 Drill holes on the ESD floor. 1.
Use a percussion drill with bit 16 to drill holes at the anchor points. The holes should penetrate the ESD floor, as shown in Figure 9-7. Figure 9-7 Drilling a hole on the ESD floor
WARNING Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2.
Use a vacuum cleaner to clear the dust inside and around the holes. If the inter-hole spacing is too wide or too narrow, locate and drill holes again.
Step 3 Position the support. 1.
9-6
Place the support under the ESD floor, and then use bolts to secure the ESD floor on the support temporarily, as shown in Figure 9-8. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Figure 9-8 Positions of the access holes in the support and holes in the ESD floor
(1) Mounting holes for the ESD floor
2.
(2) ESD floor (3) Mounting hole for the concrete floor
Mark the positions of the mounting holes on the concrete floor, as shown in Figure 9-9. Figure 9-9 Marking the positions of the mounting holes
(1) Mounting hole for the (2) Frames concrete floor
3.
(3) Concrete floor
(4) ESD floor
Use a measuring tape to measure the inter-hole spacing, and ensure that the four holes serve as the vertices of a rectangle.
Step 4 Drill holes at the anchor points on the concrete floor, and then install expansion bolt assemblies. For details, see Installing the Cabinet on the Concrete Floor Step 2. Step 5 Secure the support for installing the ESD floor. Use M12x60 bolts, spring washers, and flat washers to secure the support for installing the ESD floor on the concrete floor. Tighten the bolts until the fastening torque reaches 45 N·m. Figure 9-10 shows how to secure the support for installing the ESD floor. Issue 13 (2010-10-30)
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Figure 9-10 Securing the supports for installing the ESD floor
(1) M12x60 bolt
(2) Spring washer
(3) Flat washer
Step 6 Remove the bolts that are used to temporarily secure the ESD floor on the support in Step 3.1. Step 7 Refer to Installing the Cabinet on the Concrete Floor Step 3, Step 4. ----End
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10 Installing the Cabinet
10
Installing the Cabinet
About This Chapter The BTS3900 cabinets can be flexibly installed. In different scenarios, a single cabinet can be separately installed and two cabinets can be installed side-by-side or stacked. 10.1 Installing the Vehicle-mounted Cabinet This section describes the procedure and precautions to be taken for installing the vehiclemounted cabinet. 10.2 Installing a Single Cabinet Separately This section describes the procedure and precautions to be taken for installing a single cabinet on a base. 10.3 Installing Two Cabinets Side-by-Side This section describes the procedure and precautions for installing two cabinets side-by-side. 10.4 Stacking Two Cabinets This section describes the procedure and precautions for stacking two cabinets.
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10.1 Installing the Vehicle-mounted Cabinet This section describes the procedure and precautions to be taken for installing the vehiclemounted cabinet.
Procedure Step 1 Place the vehicle-mounted cabinet on the plate, and then align the cabinet with the plate. Step 2 Tighten the four M12x50 bolts until the tightening torque reaches 45 N·m, as shown in Figure 10-1. Figure 10-1 Securing the cabinet on the plate
Step 3 Use two M12x30 bolts to secure the supports and cabinet, and then use four M12 nuts to secure the supports and dampers until the tightening torque reaches 45 N·m, as shown in Figure 10-2.
10-2
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Figure 10-2 Securing the supports and dampers
----End
10.2 Installing a Single Cabinet Separately This section describes the procedure and precautions to be taken for installing a single cabinet on a base.
Context The cabinet door can be removed before the cabinet is installed for easy operations. When removing the cabinet door, disconnect the equipotential cable from the lower part of the door, and then rotate the spring pin 90° to the left and press the pin. Thus, the cabinet door can be removed, as shown in Figure 10-3.
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Figure 10-3 Removing the cabinet door
When installing the cabinet door, align the spring pin with the hole, rotate the pin to the right until it is tightly pressed by the door, and then install the equipotential cable on the door, as shown in Figure 10-4. Figure 10-4 Installing the cabinet door
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Procedure Step 1 Lift the cabinet onto the base. Step 2 Slide the cabinet along the base to ensure that the back of the cabinet is aligned with the back of the base. Use a torque wrench to tighten the two M12x50 bolts in the front of the cabinet until the fastening torque reaches 45 N·m, as shown in Figure 10-5. Figure 10-5 Installing the cabinet
----End
10.3 Installing Two Cabinets Side-by-Side This section describes the procedure and precautions for installing two cabinets side-by-side.
Procedure Step 1 Remove the connecting pieces on the top of the cabinets, as shown in Figure 10-6.
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Figure 10-6 Removing the connecting pieces
Step 2 Install the two connecting pieces on the positions shown in Figure 10-7, and then tighten the screws. Figure 10-7 Installing the connecting pieces
----End
10.4 Stacking Two Cabinets This section describes the procedure and precautions for stacking two cabinets.
Context
10-6
l
The -48 V cabinet can be stacked.
l
The +24 V cabinet cannot be stacked. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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l
Stacking 220 V cabinets are not recommended. If they have to be stacked, the cabinets must bear a high ambient temperature which is 5 degrees lower than the normal.
Procedure Step 1 Remove the rubber screws and connecting pieces from the top of the lower cabinet, and then install the installation blocks on the rear part of the cabinet top, as shown in Figure 10-8. Figure 10-8 Removing the rubber screws and connecting pieces
Step 2 Remove the cover plate from the top of the upper cabinet, as shown in Figure 10-9. Figure 10-9 Removing the cover plate
Step 3 Lift the upper cabinet onto the lower cabinet, slide the upper cabinet along the top of the lower cabinet until the backs of two cabinets are aligned. Tighten the bolts to secure the cabinet, as shown in Figure 10-10.
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Figure 10-10 Securing the cabinet
----End
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11 Installing the PGND Cable and Equipotential Cable
11
Installing the PGND Cable and Equipotential Cable
The equipotential PGND cable is used to connect the PGND bolts on the cabinets to the PGND grounding bars on site, ensuring that the cabinets are properly grounded. The equipotential cable is used to connect the PGND bolts on the cabinets, ensuring the equipotential connections between the cabinets.
Context Table 11-1 describes the specifications of the PGND cable and equipotential cable. Table 11-1 Specifications of the PGND cable and equipotential cable Cable Name
One End
The Other End
Remarks
PGND cable
OT terminal (M8)
OT terminal (M8)
Yellow and green cable, 25 mm2
Equipotential cable
OT terminal (M6)
OT terminal (M6)
Yellow and green cable, 16 mm2
Procedure Step 1 Prepare the PGND cable and equipotential cable. 1.
Prepare the cable of proper length based on the actual cable route.
2.
Add OT terminals to both ends of the cable. For details, see Assembling the OT Terminal and the Power Cable.
Step 2 Install the PGND cable and equipotential cable.
CAUTION Install the OT terminals in a correct way, as shown in Figure 11-1.
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Figure 11-1 Installing the OT terminal in a correct way
1.
Install the PGND cable for a single cabinet. l Use a PGND cable with a cross-sectional area of 25 mm2 to connect the ground point on the -48 V cabinet to an external ground bar, as shown in Figure 11-2. NOTE
The procedure for grounding the BTS3900 cabinet (AC) is the same as the procedure for grounding the BTS3900 cabinet (-48 V DC).
Figure 11-2 Installing the PGND cable for the BTS3900 cabinet (-48 V DC)
(1) OT terminal (M8)
(2) External ground bar
l Use two PGND cables with a cross-sectional area of 25 mm2 to connect the ground point on the +24 V cabinet to the external ground bar, as shown in Figure 11-3.
11-2
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Figure 11-3 Installing the PGND cable for the BTS3900 cabinet (+24 V DC)
(1) External ground bar
2.
(2) OT terminal (M8)
(3) OT terminal (M8)
Install the PGND cable and equipotential cable for two combined cabinets. l Install the PGND cable and equipotential cable for the BTS3900 cabinet (-48 V DC), as shown in Figure 11-4. NOTE
The procedure for connecting the PGND cable and equipotential cable for the BTS3900 cabinet (AC) is the same as that for the BTS3900 cabinet (-48 V DC).
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Figure 11-4 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (-48 V DC)
(1) OT terminal (M8)
(2) OT terminal (M6)
(3) OT terminal (M6)
l Install the PGND cable and equipotential cable for the BTS3900 cabinet (+24 V DC), as shown in Figure 11-5. Figure 11-5 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (+24 V DC)
(1) OT terminal (M8)
11-4
(2) OT terminal (M8)
(3) OT terminal (M6)
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(4) OT terminal (M6)
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3.
Install the PGND cable and equipotential cable for cabinets installed in stack mode, as shown in Figure 11-6. NOTE
The procedure for connecting the PGND cable and equipotential cable for the BTS3900 cabinet (AC) is the same as that for the BTS3900 cabinet (-48 V DC).
Figure 11-6 Installing the PGND cable and equipotential cable for the BTS3900 cabinets (-48 V DC)
(1) OT terminal (M8)
(2) OT terminal (M6)
(3) OT terminal (M6)
Step 3 Route the cable by referring to 13.1 Cabling Requirements. Step 4 Label the installed cables by referring to Attaching a Cable-Tying Label. ----End
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12 (Optional) Installing the Modules
12
(Optional) Installing the Modules
About This Chapter The mandatory modules in the cabinet are already installed. The optional modules can be installed on site according to different field requirements. 12.1 Installing the GPS Surge Protector This section describes the procedure and precautions to be taken for installing the GPS surge protector. 12.2 Installing the DDF The Digital Distribution Frame (DDF) cable distribution includes the distribution of alarm cables and E1/T1 cables. The cabling principle for alarm cables is left cable inlet and left cable outlet. The cabling principle for E1/T1 cables is right cable inlet and right cable outlet. The cabling principle for all cables is top cable inlet and bottom cable outlet. 12.3 Installing the GATM and Bias-Tee This describes the procedures and precautions for the installation of the GATM and Bias-Tee when they are used together with the DRFU.
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12.1 Installing the GPS Surge Protector This section describes the procedure and precautions to be taken for installing the GPS surge protector.
Procedure Step 1 Remove the connecting piece from the cabinet top, and then install the support for the GPS surge protector in the original position of the connecting piece, as shown in Figure 12-1. Figure 12-1 Installing the support for the GPS surge protector
Step 2 Link the SMA male connector of the GPS signal cable to the GPS surge protector on the USCU and the N-type connector to the support for the GPS surge protector, as shown in Figure 12-2. Figure 12-2 Installing the GPS signal cable
Step 3 Install the GPS surge protector to the support, and then connect cables, as shown in Figure 12-3. 12-2
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Figure 12-3 Installing the GPS surge protector
Step 4 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 5 Attach labels to the installed cables. For details, see Labeling Signal Cables. ----End
12.2 Installing the DDF The Digital Distribution Frame (DDF) cable distribution includes the distribution of alarm cables and E1/T1 cables. The cabling principle for alarm cables is left cable inlet and left cable outlet. The cabling principle for E1/T1 cables is right cable inlet and right cable outlet. The cabling principle for all cables is top cable inlet and bottom cable outlet.
Context l
The 1 U DDF can be installed in the reserved space in the 19-inch cabinet.
l
On the digital modules: a, b and s indicate the following positions: – a and b indicate the terminating positions of signal cables. – s indicates the terminating position of protection grounding cables.
Procedure Step 1 Connect the twisted pair cables at the side of the DDF. Connect the other end of the twisted pair cables to BBU. 1.
Insert the exposed wires of the twisted pair cables into the corresponding digital modules according to the colors or labels of the wires.
2.
Use the IDC tool to install the wires of the twisted pair cables to the terminating position of the digital modules, as shown in Figure 12-4.
Step 2 Connect the twisted pair cables at the side of the DDF. Connect the other end of the twisted pair cables to the peer equipment. Issue 13 (2010-10-30)
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1.
Insert the exposed wires of the twisted pair cables into the corresponding digital modules according to the colors or labels of the wires.
2.
Use the IDC tool to install the wires of the twisted pair cables to the terminating position of the digital modules, as shown in Figure 12-4.
Step 3 Arrange the cables on DDF, as shown in Figure 12-4. Figure 12-4 DDF cable distribution effect
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l When DDF cable distribution is complete, ensure that the unexposed part is outside the DDF box. l When the cables on both sides of the DDF box are connected, the wire connection order depends on the actual situation and ensures that wires in the same color are connected, as shown in Figure 12-4.
Step 4 Check whether floating nuts are configured on both sides of the 19-inch subrack. If not, install the floating nuts delivered with the DDF on both sides of the 19-inch subrack. Step 5 Align the DDF with the subrack, slide it into the subrack, and tighten the screws on both sides of the DDF, as shown in Figure 12-5. Figure 12-5 Installing the DDF in the BTS3900
----End
12.3 Installing the GATM and Bias-Tee This describes the procedures and precautions for the installation of the GATM and Bias-Tee when they are used together with the DRFU.
Context The Bias-Tee couples the DC power or OOK signals into the feeder. The GATM is connected to the antenna through the Bias-Tee. If the DRFU is configured, the GATM and Bias-Tee must be configured. Issue 13 (2010-10-30)
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Figure 12-6 shows the cable connection ports of the straight DIN Bias-Tee. Table 12-1 describes the cable connection of the straight DIN Bias-Tee. Figure 12-6 Cable connection ports of the straight DIN Bias-Tee
Table 12-1 Cable connections of the straight DIN Bias-Tee No.
Cable Connection
1
Connected to the feeder of the antenna system.
2
Port for the Bias-Tee and RET control signals. Connected to the ports from ANT0 to ANT5 on the GATM.
3
Connected to the PGND cable.
4
Connected to the jumper of the BTS3900L.
Figure 12-7 shows the cable connections of the GATM and the straight DIN Bias-Tee.
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Figure 12-7 Cable connections
Procedure Step 1 Connect the GND port on the straight DIN Bias-Tee to the grounding bar of the antenna through the PGND cable, and then fix the straight DIN Bias-Tee on the cable rack. Step 2 Connect the ANT port on the straight DIN Bias-Tee to the 7/8" feeder. Step 3 Connect the DC/OOK port on the Bias-Tee to the ports from ANT0 to ANT5 on the GATM through the RET control signal cable. Step 4 Connect the BTS port on the Bias-Tee to the RF output port on the RFU through the 1/2" jumper, as shown in Figure 12-8.
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Figure 12-8 Installing the straight DIN Bias-Tee
(1) Indoor grounding bar
(2) Grounding bar for the antenna
(3) 7/8" feeder
(4) 1/2" jumper
(5) RET control signal cable
(6) GATM
Step 5 Attach color rings to the RF jumper by referring to Attaching the Color Ring. ----End
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Installing the Cables
About This Chapter The BTS3900 cabinet is delivered with boards installed, and the internal cables are already installed. Therefore, only the external cables and cables for the optional modules need to be installed on site. 13.1 Cabling Requirements You must route cables according to the specified cabling requirements to prevent signal interference. 13.2 Cable Routing Principles The cables in the BTS3900 cabinet must be routed according to the cabling requirements and must be bound by using cable ties. 13.3 Installing the Power Cables This section describes the procedure and precautions to be taken for installing the external input power cable. 13.4 Installing the Transmission Cables The E1/T1 cable or FE/GE cable can be used for data transmission according to the transmission mode of the base station. 13.5 Installing the CPRI Cables Between the Cabinets The CPRI cables need to be installed between the two cabinets installed side-by-side or stacked on site. 13.6 Installing the Monitoring Signal Cable (Optional) Between Two Cabinets The monitoring signal cable in a cabinet is installed before delivery, and the monitoring signal cable between two cabinets must be installed on site. 13.7 Installing the Monitoring Signal Cable for the EMU The monitoring signal cable for the EMU transmits monitoring signals from the EMU to the BBU3900. 13.8 Installing the RF Jumper The RF jumper connects the RFU to the antenna system for signal exchange between the base station and the antenna system.
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13.1 Cabling Requirements You must route cables according to the specified cabling requirements to prevent signal interference.
General Cabling Requirements The bending radius of the cables must meet the following specifications: l
The bending radius of the 7/8'' feeder must be more than 250 mm, and that of the 5/4'' feeder must be more than 380 mm.
l
The bending radius of the 1/4'' jumper must be more than 35 mm. The bending radius of the super-flexible 1/2'' jumper must be more than 50 mm, and that of the ordinary 1/2'' jumper must be more than 127 mm.
l
The bending radius of the power cable or PGND cable must be at least five times the diameter of the cable.
l
The bending radius of the optical cable must be at least 20 times the diameter of the optical cable.
l
The bending radius of the E1/T1 cable must be at least five times the diameter of the cable.
l
The bending radius of the signal cable must be at least five times the diameter of the cable.
The cables must be bound as follows: l
Different types of cables must be separately routed at least 30 mm and cannot be entangled.
l
The cables must be bound tightly and neatly. The jackets of the cables are not damaged.
l
The cable ties must face the same direction, and those at the same horizontal line must be in a straight line. Extra length of cable ties must be cut off.
l
Labels or nameplates must be attached to the cables after they are installed.
The cables must be routed in category as follows: l
Different types of cables must be separately routed.
l
Different types of cables cannot be crossed.
l
Different types of cables must be routed in parallel or separated by special objects.
Special Cabling Requirements Cabling requirements for power cables are as follows: l
The -48 V power cables should be bound together.
l
The +24 V power cables should be bound together.
l
The power cable must be separately bound from transmission cables and signal cables.
l
Multiple power cables must be bound when routed.
l
Positions for routing the power cables must meet requirements of the engineering design.
l
If the length of the power cable is insufficient, replace the cable rather than adding connectors or soldering joints to lengthen the cable.
Cabling requirements for PGND cables are as follows: 13-2
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l
The PGND cables for the base station must be connected to the same ground bar.
l
The PGND cables must be buried in the ground or routed indoors. They should not be routed overhead before they are led into the equipment room.
l
The exterior of the coaxial wire and shielding layer of the shielded cable must have proper electrical contact with the metal surface of the connected equipment.
l
The PGND cable and signal cable cannot be bound or entangled. A certain distance must be reserved between them to prevent interference from each other.
l
Fuses or switches cannot be installed on the PGND cables.
l
Other devices cannot be used for the electrical connection of the PGND cables.
l
All the metal parts in the housing of the equipment must be reliably connected to the ground terminal.
Cabling requirements for E1 cables are as follows: l
The E1 cable cannot cross the power cable, PGND cable, or RF cable when routed. If the transmission cable is routed with the power cable, PGND cable, and RF cable in parallel, the spacing between them must be greater than 30 mm.
l
The E1 cables must be neatly and elegantly routed and securely bound with cable ties.
l
Extra length of E1 cables must be reserved when they are curved.
Cabling requirements for the optical cables are as follows: l
Do not stretch the optical cables, step on the cables, or place heavy objects on the cables. Keep the cables away from sharp objects to prevent damage to the fibers.
l
When the optical cables are routed, the extra length of the cables must be coiled around special devices, such as a fiber coiler.
l
When coiling the optical cables, apply the strength evenly. Do not bend the cables with force, thus preventing any damage to the fibers.
l
Cover the optical connectors that are not in use with dustproof caps.
13.2 Cable Routing Principles The cables in the BTS3900 cabinet must be routed according to the cabling requirements and must be bound by using cable ties.
Route the cables in a single cabinet l
Route the PGND cable along the left interior of the cabinet.
l
Route the six jumpers on the left along the left interior of the cabinet.
l
Route the external input power cable along the left interior of the cabinet.
l
Route the six jumpers on the right along the right interior of the cabinet.
l
Route the transmission cables along the right interior of the cabinet.
l
Route the monitoring signal cables close to the CPRI cables.
Figure 13-1 shows the cable routing in a single cabinet.
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Figure 13-1 Cable routing in a single cabinet
(1) PGND cable
(2) Jumper on the left
(3) Input power cable
(4) Jumper on the right
(5) Transmission cable
-
Route the cables in stacked cabinets l
Route and bind the cables by referring to "Route the cables in a single cabinet".
l
The 12 jumpers in the upper cabinet are directly led out.
Figure 13-2 shows the cable routing in stacked cabinets. Figure 13-2 Cable routing in stacked cabinets
(1) PGND cable
(2) Jumper on the left
(3) Input power cable
(4) Jumpers in the upper cabinet
(5) Jumper on the right
(6) Transmission cable
13.3 Installing the Power Cables This section describes the procedure and precautions to be taken for installing the external input power cable. 13.3.1 Installing the Input Power Cable for the -48 V Cabinet 13-4
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The input power cable for the -48 V cabinet connects the wiring terminals for the input power cable on the DCDU-01 to the external power equipment. The cable feeds -48 V DC power into the BTS3900 cabinet. 13.3.2 Installing the Input Power Cable for the +24 V Cabinet The input power cable for the +24 V cabinet connects the power system (DC/DC) to the external power equipment. The cable feeds +24 V DC power into the BTS3900 cabinet. 13.3.3 Installing the Input Power Cable for the 220 V Cabinet The input power cable for the 220 V cabinet feeds external AC power into the BTS3900 cabinet.
13.3.1 Installing the Input Power Cable for the -48 V Cabinet The input power cable for the -48 V cabinet connects the wiring terminals for the input power cable on the DCDU-01 to the external power equipment. The cable feeds -48 V DC power into the BTS3900 cabinet.
Context The cross-section area of the -48 V power cable is 16 mm2.
Procedure Step 1 Measure the distance between the DCDU-01 and the external power equipment according to the actual cable route, and then prepare power cables of a proper length. NOTE
Reserve an extra length of 300 mm when preparing the input power cables. Thus, the power cables can be led out from the upper cabinet if two cabinets are stacked in the case of capacity expansion.
Step 2 Make an M6 OT terminal at each end of the power cable. For details, see Assembling the OT Terminal and the Power Cable. Step 3 Remove the protecting hood from the terminal block of the DCDU-01. Step 4 Connect the blue cable to the wiring terminal labeled NEG(-) and black cable to the wiring terminal labeled RTN(+). NOTE
When two -48 V cabinets are stacked, the external power equipment supplies power to the upper and lower cabinets.
Step 5 Use a screwdriver to tighten the screws on the wiring terminals. Step 6 Install the protecting hood, and then use a screwdriver to tighten the screws. Figure 13-3 shows the installation procedure.
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Figure 13-3 Installing the -48 V input power cable
Step 7 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 8 Attach labels to the installed cables. For details, see Attaching a Cable-Tying Label. ----End
13.3.2 Installing the Input Power Cable for the +24 V Cabinet The input power cable for the +24 V cabinet connects the power system (DC/DC) to the external power equipment. The cable feeds +24 V DC power into the BTS3900 cabinet.
Context The cross-section area of the +24 V power cable is 25 mm2.
Procedure Step 1 Measure the distance between the wiring terminal of the power subrack (DC/DC) and the external power equipment according to the actual cable route, and then prepare power cables of a proper length. NOTE
Reserve an extra length of 300 mm when preparing the input power cables. Thus, the power cables can be led out from the upper cabinet if two cabinets are stacked in the case of capacity expansion.
Step 2 Make an M6 OT terminal at each end of the power cable. For details, see Assembling the OT Terminal and the Power Cable. Step 3 Use a Phillips screwdriver to remove the screws from the protecting hood for the wiring terminals of the power subrack (DC/DC), and then remove the protecting hood. 13-6
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Step 4 Connect the two red cables to the wiring terminals labeled + and two black cables to the wiring terminals labeled -. Step 5 Use a screwdriver to tighten the screws on the wiring terminals. Step 6 Install the protecting hood, and then use a screwdriver to tighten the screws. Figure 13-4 shows the installation procedure. Figure 13-4 Installing the +24 V input power cable
Step 7 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 8 Attach labels to the installed cables. For details, see Attaching a Cable-Tying Label. ----End
13.3.3 Installing the Input Power Cable for the 220 V Cabinet The input power cable for the 220 V cabinet feeds external AC power into the BTS3900 cabinet.
Context l
The 220 V cabinet supports three types of AC power input: 220 V AC single-phase, 220 V AC three-phase, and 110 V AC dual-live-wire.
l
The cross-section area of the 220 V AC single-phase power cable is 6 mm2. The crosssection area of the 220 V AC three-phase power cable is 2.5 mm2. The cross-section area of the 110 V dual-live-wire power cable is 6 mm2.
Procedure Step 1 Measure the distance between the wiring terminal of the power subrack (AC/DC) and the external power equipment according to the actual cable route, and then prepare power cables of a proper length. Issue 13 (2010-10-30)
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Reserve an extra length of 300 mm when preparing the input power cables. Thus, the power cables can be led out from the upper cabinet if two cabinets are stacked in the case of capacity expansion.
Step 2 Make an M6 OT terminal at each end of the power cable. For details, see Assembling the OT Terminal and the Power Cable.
DANGER When adding OT terminals to the power cable, do not expose the metal wires, as shown in Figure 13-5.
Figure 13-5 Adding an OT terminals to the power cable
Step 3 Connect the corresponding input powers according to field requirements. 1.
Install the 220 V AC single-phase input power cable. That is, connect the live wire to the wiring terminal labeled L1 in the power subrack (AC/DC) and neutral wire to the wiring terminal labeled N1, as shown in Figure 13-6. Figure 13-6 220 V AC single-phase power cable
2.
13-8
Install the 220 V AC three-phase input power cable. That is, remove the short-circuiting cable from the wiring terminals of the power subrack (AC/DC), connect the three live wires to the wiring terminals labeled L1, L2, and L3, and then connect the neutral wire to the wiring terminal labeled N1, as shown in Figure 13-7.
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Figure 13-7 220 V AC three-phase power cable
3.
Install the 110 V AC input power cable. That is, connect the live wire to the wiring terminal labeled L1 in the power subrack (AC/DC) and neutral wire to the wiring terminal labeled N1, as shown in Figure 13-8. Figure 13-8 110 V AC dual-live-wire power cable
Step 4 Connect the other end of the power cable to the external power equipment. Step 5 Use a screwdriver to tighten the screws on the wiring terminals. Step 6 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 7 Attach labels to the installed cables. For details, see Attaching a Cable-Tying Label. ----End
13.4 Installing the Transmission Cables The E1/T1 cable or FE/GE cable can be used for data transmission according to the transmission mode of the base station. 13.4.1 Installing the E1/T1 Cable If the cabinet needs to communicate with transmission equipment through the E1/T1 cable, the E1/T1 cable needs to be installed. 13.4.2 Installing the FE/GE Cable Issue 13 (2010-10-30)
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If the cabinet needs to communicate with transmission equipment through the FE/GE cable, the FE/GE cable needs to be installed.
13.4.1 Installing the E1/T1 Cable If the cabinet needs to communicate with transmission equipment through the E1/T1 cable, the E1/T1 cable needs to be installed.
Prerequisite Ensure that both ends of the E1 cable are disconnected. Then, weld connectors to the bare wires at one end of the E1 cable all at once.
Procedure Step 1 Install the E1/T1 cable. 1.
If the UTRP is not configured, link the DB26 male connector of the E1/T1 cable to the port labeled E1/T1 on the GTMU, as shown in Figure 13-9. Figure 13-9 Installing the E1/T1 cable (1)
2.
If the UTRP is configured, link the DB26 male connectors of the E1/T1 cables to the ports labeled E1/T1 (0-3) and E1/T1 (4-7) on the UTRP, and then tighten the screws, as shown in Figure 13-9. Figure 13-10 Installing the E1/T1 cable (2)
Step 2 Route the E1/T1 cable along the cable trough on the right of the cabinet, and then use cable ties to bind the cable. 13-10
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Step 3 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Attach labels to the installed cables by referring to Attaching an L-Shaped Label. ----End
13.4.2 Installing the FE/GE Cable If the cabinet needs to communicate with transmission equipment through the FE/GE cable, the FE/GE cable needs to be installed.
Context The FE/GE cable is a shielded straight-through cable. It has an RJ-45 connector at each end.
Procedure Step 1 Connect the FE/GE cable to the port labeled FE0 on the GTMU, as shown in Figure 13-11. Figure 13-11 Installing the FE/GE cable
Step 2 Route the FE/GE cable along the cable trough on the right of the cabinet, and then use cable ties to bind the cable. Step 3 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Attach labels to the installed cables by referring to Attaching an L-Shaped Label. ----End
13.5 Installing the CPRI Cables Between the Cabinets The CPRI cables need to be installed between the two cabinets installed side-by-side or stacked on site.
Procedure Step 1 Install the CPRI cables between the cabinets installed side-by-side. 1.
Install the cabinets side-by-side by referring to 10.3 Installing Two Cabinets Side-bySide.
2.
The main cabinet is placed on the left, and the extension cabinet is placed on the right. Figure 13-12 shows the CPRI cable connections between two cabinets.
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For details about how to remove and insert the CPRI cable, see Inserting and Removing CPRI Cables.
Figure 13-12 CPRI cable connections between two cabinets installed side-by-side
Step 2 Install the CPRI cables between the stacked cabinets.
13-12
1.
Stack the cabinets by referring to 10.4 Stacking Two Cabinets.
2.
The main cabinet is placed on the bottom, and the extension cabinet is placed on the main cabinet. Figure 13-13 shows the CPRI cable connections between two cabinets.
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Figure 13-13 CPRI cable connections between stacked cabinets
Step 3 Route the CPRI cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Attach labels to the installed cables by referring to Attaching an L-Shaped Label. ----End
13.6 Installing the Monitoring Signal Cable (Optional) Between Two Cabinets The monitoring signal cable in a cabinet is installed before delivery, and the monitoring signal cable between two cabinets must be installed on site. 13.6.1 Installing the Cascading Signal Cable for the Fan Units The cascading signal cable for the fan units must be installed on site for combined or stacked cabinets. Issue 13 (2010-10-30)
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13.6.2 Installing the In-Position Signal Cable for the PSU (DC/DC) The in-position signal cable for the PSU (DC/DC) between the combined or stacked cabinets must be installed on site. 13.6.3 Installing the Monitoring Signal Cable for the PSU (DC/DC) The monitoring signal cable for the PSU (DC/DC) between the combined cabinets or stacked cabinets must be installed on site.
13.6.1 Installing the Cascading Signal Cable for the Fan Units The cascading signal cable for the fan units must be installed on site for combined or stacked cabinets.
Procedure Step 1 Install the cascading signal cable for the fan units in the scenario of cabinet combination. 1.
Install the cabinets side-by-side by referring to 10.3 Installing Two Cabinets Side-bySide.
2.
The primary cabinet is positioned on the left, and the secondary cabinet is positioned on the right. Connect one end of the cascading signal cable to the COM_OUT port on the primary cabinet, and connect the other end of the cascading signal cable to the COM_IN port on the secondary cabinet, as shown in Figure 13-14. Figure 13-14 Connection of the signal cable between combined cabinets
Step 2 Install the cascading signal cable for the fan units between the stacked cabinets.
13-14
1.
Install cabinets in stack mode by referring to 10.4 Stacking Two Cabinets.
2.
The primary cabinet is placed under the secondary cabinet. Connect one end of the signal cable to the COM_OUT port on the primary cabinet, and connect the other end of the signal cable to the COM_IN port on the secondary cabinet, as shown in Figure 13-14.
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Figure 13-15 Connection of the signal cable between stacked cabinets
Step 3 Route the cables by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Label the installed cables by referring to Attaching an L-Shaped Label. ----End
13.6.2 Installing the In-Position Signal Cable for the PSU (DC/DC) The in-position signal cable for the PSU (DC/DC) between the combined or stacked cabinets must be installed on site.
Procedure Step 1 Install the in-position signal cable for the PSU (DC/DC) between the combined cabinets. 1.
Install the cabinets side-by-side by referring to 10.3 Installing Two Cabinets Side-bySide.
2.
The primary cabinet is positioned on the left, and the secondary cabinet is positioned on the right. Connect one end of the signal cable to the EXT-ALM0 port on the UPEU or UEIU
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in the primary cabinet, and connect the other end of the signal cable to the PRESENT port of the DC/DC power system in the secondary cabinet, as shown in Figure 13-16. Figure 13-16 Connection of the signal cable between combined cabinets
Step 2 Install the in-position signal cable for the PSU (DC/DC) between the stacked cabinets.
13-16
1.
Install the cabinets in stack mode by referring to 10.4 Stacking Two Cabinets.
2.
The primary cabinet is stacked under the secondary cabinet. Connect one end of the signal cable to the EXT-ALM1 port on the UPEU or UEIU in the primary cabinet, and connect the other end of the signal cable to the PRESENT port of the DC/DC power system in the secondary cabinet, as shown in Figure 13-16.
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Figure 13-17 Connection of the signal cable between stacked cabinets
Step 3 Route the cables by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Label the installed cables by referring to Attaching an L-Shaped Label. ----End
13.6.3 Installing the Monitoring Signal Cable for the PSU (DC/DC) The monitoring signal cable for the PSU (DC/DC) between the combined cabinets or stacked cabinets must be installed on site.
Procedure Step 1 Install the monitoring signal cable for the PSU (DC/DC) between the combined cabinets. 1.
Install the cabinets side-by-side by referring to 10.3 Installing Two Cabinets Side-bySide.
2.
The primary cabinet is positioned on the left, and the secondary cabinet is positioned on the right. Connect the RJ-45 connector on one end of the monitoring signal cable to the
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EXT-ALM0 port on the UPEU in the primary cabinet, and connect the other end of the monitoring signal cable through interconnection terminals to the ALM port of the DC/DC power system in the secondary cabinet, as shown in Figure 13-18. Figure 13-18 Connection of the signal cable between combined cabinets
Step 2 Install the monitoring signal cable for the PSU (DC/DC) between the stacked cabinets.
13-18
1.
Install the cabinets in stack mode by referring to 10.4 Stacking Two Cabinets.
2.
The primary cabinet is stacked under the secondary cabinet. Connect one end of the monitoring signal cable to the EXT-ALM0 port on the UPEU in the primary cabinet, and connect the other end of the monitoring signal cable through interconnection terminals to the ALM port of the DC/DC power system in the secondary cabinet, as shown in Figure 13-18.
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Figure 13-19 Connection of the signal cable between stacked cabinets
Step 3 Route the cables by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Label the installed cables by referring to Attaching an L-Shaped Label. ----End
13.7 Installing the Monitoring Signal Cable for the EMU The monitoring signal cable for the EMU transmits monitoring signals from the EMU to the BBU3900.
Procedure Step 1 Insert the RJ-45 connector at one end of the monitoring signal cable for the EMU into the port labeled MON1 on the UPEU in the BBU3900.
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Step 2 Link the DB9 male connector at the other end of the monitoring signal cable for the EMU to the port labeled RS485 on the EMU, and then tighten the screws. Step 3 Route the cable by referring to 13.1 Cabling Requirements and 13.2 Cable Routing Principles. Step 4 Attach labels to the installed cables by referring to Attaching an L-Shaped Label. ----End
13.8 Installing the RF Jumper The RF jumper connects the RFU to the antenna system for signal exchange between the base station and the antenna system.
Procedure Step 1 Lead the RF jumpers into the cabinet through the cable holes, and the route the jumpers by referring to 13.2 Cable Routing Principles. NOTE
Reserve an extra length of 300 mm when preparing the RF jumper according to the actual cable route. Thus, the jumper can be led out from the upper cabinet if two cabinets are stacked during capacity expansion.
Step 2 Link the DIN connectors of the RF jumpers to the ports labeled ANT on the panels of the RFUs. Figure 13-20 shows the RF jumper connections in a single cabinet, and Figure 13-21 shows the RF jumper connections in stacked cabinets. Figure 13-20 Installing RF jumpers in a single cabinet
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13 Installing the Cables
Figure 13-21 Installing RF jumpers in stacked cabinets
Step 3 Use a torque wrench to tighten the DIN connector until the fastening torque reaches 25 N·m to 35 N·m. Step 4 Attach color rings by referring to Color Ring for the Antenna System and Attaching the Color Ring. NOTE
Check and ensure the secure connections of the Inter-RFU RF signal cables, which are installed inside the cabinets based on different configurations of the cabinets before delivery.
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14 Installation Checklist
14
Installation Checklist
After the cabinets and devices are all installed, you need to check the installation items, installation environment, and cable-related items.
Checking the Cabinet Installation Table 14-1 describes the cabinet installation checklist. Table 14-1 Cabinet installation checklist 1
The base is securely installed.
2
All the bolts, especially those for electrical connections, are tightened. Both the spring washer and the flat washer are installed in a correct sequence.
3
The surface of the cabinet is neat and clean.
4
The cabinet meets the dustfree requirement.
5
The paint on the surface is satisfactory. The surface where the paint had flaked off has been repainted.
6
All labels, tags, and nameplates are correct, legible, and complete.
Installation Environment Checklist Table 14-2 describes the installation environment checklist. Table 14-2 Installation environment checklist
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1
No redundant tapes or cable ties are left on the cables.
2
No tapes, tails of cable ties, paper, or packing bags are left inside or outside the cabinet.
3
All the items around the cabinet are neat, clean, and intact.
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14 Installation Checklist
Electric Connection Checklist Table 14-3 describes the electric connection checklist of the cabinet. Table 14-3 Electric connection checklist of the cabinet
14-2
1
All self-made PGND cables are copper-based with the proper wire diameters. No breaking device such as switch and fuse is allowed for the electric connection of the grounding system. No short circuit is allowed. Each terminal on the grounding bar can be connected with only one wiring terminal of the PGND cable.
2
The redundant part of the power cable or PGND cable is stripped off rather than coiled.
3
The lugs at both ends of the power cable or PGND cable are securely soldered or crimped.
4
The bare wires and the OT terminals are coated with heat-shrinkable tubes.
5
The flat washer and the spring washer are well mounted on all OT terminals.
6
All cables are connected securely and reliably. Pay special attention to the communication cable connections and cable connections at the bottom of the cabinet.
7
The cables are neatly and tightly bound. The cable ties are evenly spaced and face the same direction.
8
The power cable, PGND cable, feeder, optical cable and the E1/T1/FE signal cable are bound separately with a spacing of larger than 30 mm.
9
The cable layout facilitates maintenance and future capacity expansion. And the bending radius of the cables meets the requirements.
10
All the labels at both ends of the cables are legible.
11
The extra length of each indoor cable tie is cut, and the cut surface is smooth without sharp edges. An extra length of 3 mm to 5 mm is reserved for each outdoor cable tie.
12
The idle connectors of the cables are properly protected.
13
The connectors of the RF cables are fixed in position to avoid false connection that may cause an abnormal voltage standing wave ratio (VSWR).
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BTS3900 GSM Installation Guide
15 Performing the Power-On Check
15
Performing the Power-On Check
Before the cabinets are put into use, you need to check the power-on status of the cabinets. Figure 15-1 shows the power-on check procedure.
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15 Performing the Power-On Check
Figure 15-1 Power-on check procedure
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