Nokia LTE Maintaining

Nokia Networks

LTE Radio Access, Rel. FDD-LTE 15A, Operating Documentation, Issue 02 Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware DN09182513 Issue 02 Approval Date 2015-06-17

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

The information in this document applies solely to the hardware/software product ("Product") specified herein, and only as specified herein. This document is intended for use by Nokia Solutions and Networks' customers ("You") only, and it may not be used except for the purposes defined in the agreement between You and Nokia Solutions and Networks ("Agreement") under which this document is distributed. No part of this document may be used, copied, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Solutions and Networks. If you have not entered into an Agreement applicable to the Product, or if that Agreement has expired or has been terminated, You may not use this document in any manner and You are obliged to return it to Nokia Solutions and Networks and destroy or delete any copies thereof. The document has been prepared to be used by professional and properly trained personnel, and You assume full responsibility when using it. Nokia Solutions and Networks welcome Your comments as part of the process of continuous development and improvement of the documentation. This document and its contents are provided as a convenience to You. Any information or statements concerning the suitability, capacity, fitness for purpose or performance of the Product are given solely on an "as is" and "as available" basis in this document, and Nokia Solutions and Networks reserves the right to change any such information and statements without notice. Nokia Solutions and Networks has made all reasonable efforts to ensure that the content of this document is adequate and free of material errors and omissions, and Nokia Solutions and Networks will correct errors that You identify in this document. But, Nokia Solutions and Networks' total liability for any errors in the document is strictly limited to the correction of such error(s). Nokia Solutions and Networks does not warrant that the use of the software in the Product will be uninterrupted or error-free. NO WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF AVAILABILITY, ACCURACY, RELIABILITY, TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS MADE IN RELATION TO THE CONTENT OF THIS DOCUMENT. IN NO EVENT WILL NOKIA SOLUTIONS AND NETWORKS BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT, EVEN IN THE CASE OF ERRORS IN OR OMISSIONS FROM THIS DOCUMENT OR ITS CONTENT. This document is Nokia Solutions and Networks' proprietary and confidential information, which may not be distributed or disclosed to any third parties without the prior written consent of Nokia Solutions and Networks. Nokia is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only. Copyright © 2015 Nokia Solutions and Networks. All rights reserved.

Important Notice on Product Safety This product may present safety risks due to laser, electricity, heat, and other sources of danger. Only trained and qualified personnel may install, operate, maintain or otherwise handle this product and only after having carefully read the safety information applicable to this product. The safety information is provided in the Safety Information section in the "Legal, Safety and Environmental Information" part of this document or documentation set. Nokia Solutions and Networks is continually striving to reduce the adverse environmental effects of its products and services. We would like to encourage you as our customers and users to join us in working towards a cleaner, safer environment. Please recycle product packaging and follow the recommendations for power use and proper disposal of our products and their components. If you should have questions regarding our Environmental Policy or any of the environmental services we offer, please contact us at Nokia Solutions and Networks for any additional information.

2

DN09182513

Issue: 02

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Table of Contents This document has 17 pages Summary of changes..................................................................... 6 1

Performing routine maintenance tasks...........................................7

2

Checking the FCOA door or roof locks........................................ 12

3 3.1

Painting Flexi Multiradio BTS hardware....................................... 13 Introduction to painting Flexi Multiradio BTS hardware................13

3.2

Preparing Flexi Multiradio BTS hardware for painting..................13

3.3

Repair painting............................................................................. 14 Recoating..................................................................................... 17

3.4

Issue: 02

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Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

List of Figures

4

Figure 1

LMP IP plug installed............................................................................8

Figure 2

LMP port IP cap not reinstalled after maintenance...............................8

Figure 3

Connector IP boot correctly installed firmly in place.............................9

Figure 4

Connector IP boot incorrectly installed (IP seals not firmly in place on any edge)..............................................................................................9

Figure 5

Connector IP boot incorrectly installed (not pushed all the way in).... 10

Figure 6

Cable installed without IP boot........................................................... 10

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Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

List of Tables

Issue: 02

Table 1

Releases covered by the document..................................................... 6

Table 2

Original colors of Flexi Multiradio BTS hardware............................... 14

Table 3

Recommended paints for repair painting............................................15

Table 4

Teknos recommendations for spraying...............................................15

Table 5

Akzo Nobel recommendations for spraying........................................16

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Summary of changes

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Summary of changes Changes between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues. This document is common for all Radio Access Technologies (RAT). You may find here information about solutions that are not available or supported in a specific SW release or RAT. Table RAT releases covered by the document lists all SW releases covered by the content of this document. For features supported in your SW release, see respective feature documentation chapter in the system library. Table 1

Releases covered by the document

Product

Release

GSM/EDGE (BSS)

RG30 (BSS), RG40 (BSS)

WCDMA RAN

RU40, RU50, RU50 EP1, WCDMA 16

Long Term Evolution

RL50, RL60, RL70, FDD LTE15A

TD LTE

RL35TD, RL45TD, RL55TD, TD LTE15A

Changes between issue 01A (2015-02-06) and issue 02 (2015-06-17) • Document title edited. • Information about Release 4 RRH plastic covers added to chapter Introduction to painting Flexi Multiradio BTS hardware.

Changes between issue 01 (2014-09-16) and issue 01A (2015-02-06) • FMSA and FMSB information has been removed because of hardware phase out. • A note has been added to Introduction to painting Flexi Multiradio BTS hardware. • Chapter Performing routine maintenance tasks has been modified. First issue of the document Maintaining Flexi Multiradio Base Station Hardware has been created as a merger of two different, technology-specific documents:

• •

6

Maintaining Flexi Multiradio BTS WCDMA Hardware Maintaining Flexi Multiradio BTS Hardware

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Performing routine maintenance tasks

1 Performing routine maintenance tasks Follow this procedure during routine site visits to ensure that the base station remains in a good condition. Purpose The Flexi BTS design itself is maintenance-free and therefore has no specified regular maintenance intervals.

1

Check whether the maintenance straps inside the module covers are damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

2

Check the fans and air circulation. For modules with fans, keep the fans free of leaves and debris. When cleaning the fans, first remove the power connector from the fan or disable power to the module (depending on the variant). For all modules, keep air inlets and outlets free of obstructions to maintain proper air circulation and prevent overheating of the BTS. Keep the BTS environment clean of dust.

3

Check the connector seals. Check the connector seals visually. Replace worn or broken seals.

4

Make sure that all connector IP seals, plugs and boots are connected correctly.

•

Issue: 02

The LMP port or any unpopulated connector openings have IP protection

DN09182513

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Performing routine maintenance tasks

•

8

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Figure 1

LMP IP plug installed

Figure 2

LMP port IP cap not reinstalled after maintenance

IP seals are firmly fitted around all edges of the IP boot

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Issue: 02

Performing routine maintenance tasks

Figure 3

Connector IP boot correctly installed firmly in place

Figure 4

Connector IP boot incorrectly installed (IP seals not firmly in place on any edge)

DN09182513

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Performing routine maintenance tasks

Figure 5

•

Connector IP boot incorrectly installed (not pushed all the way in)

Ensure that cables and connectors are fitted with IP boots. Figure 6

10

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Cable installed without IP boot

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Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Performing routine maintenance tasks

5

Check the antenna line and transmission cable connectors.

6

Check the module fixing screws. Check the tightness of the module fixing screws. For RRH, also check the tightness of the solar shield fixing screws. Tighten all loose screws and replace all damaged or missing screws

Issue: 02

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Checking the FCOA door or roof locks

Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

2 Checking the FCOA door or roof locks Purpose Check the Flexi Cabinet for Outdoor (FCOA) door or roof locks during site visits.

1

Lubricate the door or roof locks if required. Any oil (aerosol) not including graphite, silicon or teflon can be used for lubricating the locks.

12

2

If the outdoor cabinet is operating in temperatures below 0°C (32°F), lubricate each lock with a light, non-freezing spray lubricant.

3

Apply lubricating oil to moving parts of the lock assembly, and within the lock cylinder by applying oil to the key and inserting it in the cylinder repeatedly.

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Painting Flexi Multiradio BTS hardware

3 Painting Flexi Multiradio BTS hardware 3.1 Introduction to painting Flexi Multiradio BTS hardware The original paint for Flexi Multiradio BTS hardware is a polyester powder coating. Repainting, which is done with liquid paint, and renewal of polyester powder coating is primarily needed in the following cases:

• • •

Change of color is desired. The surface has become dirty and/or lost its original color. Painted surfaces have been damaged. NOTICE: Spraying is allowed only for a de-energized BTS.

Repair painting is not needed for reliability or corrosion resistance reasons. Do not perform repair painting on plastic parts as the parts have been dyed throughout.

RRH optimum performance is guaranteed when the RRH solar shield or plastic cover is in standard color.

Risk of personal injury. Plastic cover is always required on Release 4 RRH during indoor and outdoor operation for IEC/UL 60950-1 safety compliance.

3.2 Preparing Flexi Multiradio BTS hardware for painting All areas to be painted have to be thoroughly cleaned of grease and dirt beforehand. Washing with an emulgating washing agent or thinner is recommended. Also, all general detergents that do not contain acids or strong alkalic agents may be used. Organic solvents such as aromatic agents, glycol, ketone, ester, and halogen hydrocarbon should be avoided. Check the paint manufacturer's instructions for temperatures of detergents and surfaces. To improve the adhesion of new paint, grind the entire area to be painted by sanding or with a piece of steel wool. All areas that are not meant to be painted have to be carefully protected. In principle, only originally painted areas are allowed to be painted over. When the painting method is spraying, all air inlets and outlets must be covered. For Remote Radio Heads, IP seals must be in place during the painting and replaced with new ones afterwards. Thickness of the original paint is typically 70 µm at the minimum, and therefore priming is not required for repair painting.

Issue: 02

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Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

3.3 Repair painting Repair painting is not needed for reliability or corrosion resistance reasons.

Do not perform repair painting on plastic parts as the parts have been dyed throughout. In general, the polyester powder coatings are robust with all common paint types. Ideal adhesion and weatherproofness are obtained with the recommended paint types (twocomponent polyurethane or two-component acrylic paint), and thorough cleaning and painting procedure according to this instruction. Small repairs can be done with spray bottles, however, due to a greater amount of diluent the adhesion is not ideal. Small repairs can also be done with a paint brush or a piece of foam plastic. That method makes it possible to achieve a surface that looks like original structured coating. If larger areas or exterior of the cabinet are desired to be painted, using an airless HVLP (high volume with low pressure) or conventional air pressure sprayer is recommended. They will provide very good adhesion and even covering with the recommended paints. Special attention must then be paid to protecting of all areas that are not meant to be painted. Recommended colors and paints are presented in the following tables. The outer metal parts of Flexi Multiradio BTS hardware are originally painted with polyester powder paint. Original color codes are listed in Table 2: Original colors of Flexi Multiradio BTS hardware. Table 2

Original colors of Flexi Multiradio BTS hardware

Description

Color code (Natural Color System)

Nearest Munsell code

Light gray cabinets FCIA

NCS S 1502-R

H = 9,5R, V = 8,2 C = 0,5

Gray cabinets FCIA

NCS S 4502-R

H = 8,5RP, V = 5,9 and C = 0,5

Remote Radio Heads RAL 70471)

-

Dark gray cabinets FCOA,

-

RAL 7012

Plastics parts, FCOS

Gloss is within the range of 7 - 13% according to ISO 2813, 60° providing a matt finish.

1)

14

Not all Remote Radio Head variants are painted

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Table 3

Painting Flexi Multiradio BTS hardware

Recommended paints for repair painting

Base paint/Manufacturer

Hardener

Diluent

-

TEKNODUR two-component 190/Teknos Winter Oy polyurethane

TEKNODUR 100

TEKNODUR SOLV, TEKNOSOLV 9521 or TEKNOSOLV 9526

Mixing ratio by volume:

4 parts

-

1 part

10-20%

-

Akzo Nobel Sikkens Autocryl/Akzo Nobel Coatings BV

two-component acrylic paint

Autocryl Hardener MS20, MS30, MS40, MS50 or MS60

1.2.3 Thinner Fast

Mixing ratio by volume:

10 parts

-

5 parts

1 part

Table 4

Teknos recommendations for spraying

Paint:

TEKNODUR 190

Notes

Airless sprayer

0.011- 0.013"

• • •

10 - 20%

Do not use universal diluent or thinner, since they may contain alcohol which will react with the hardener.

Nozzle size Dilution

TEKNODUR SOLV

Diluent

Conventional spray

1.4 - 1.8 mm

• • • •

Nozzle size Dilution

20 - 30%

Thinner

18 - 30 s

• •

Issue: 02

Paint type

TEKNODUR SOLV

Viscosity, DIN 4 Application conditions

+5°C (+41°F)

Temperature (min.) Relative humidity

below 80%

Best results at room temperature.

Film thickness

40 µm

-

Theoretical spreading rate

12.5 m2/l

-

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Maintaining Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Hardware

Table 5

Akzo Nobel recommendations for spraying

Paint:

Akzo Nobel Sikkens Autocryl

Notes

HVLP spray gun top feed

1.3 - 1.6 mm

-

• • • •

Nozzle size Spraying pressure

max 0.7 bar

Dilution

1.2.3 Thinner Fast

5 - 7.5 %

Diluent

HVLP spray gun bottom feed

• • • •

1.5 - 1.7 mm

-

max 0.7 bar

Nozzle size Spraying pressure

5 - 7.5 %

Dilution

1.2.3 Thinner Fast

Diluent

Conventional spray top feed

1.2 - 1.5 mm/3 - 4 bar

• • •

Nozzle size/pressure

5 - 7.5 %

Dilution Thinner

1.2.3 Thinner Fast

Conventional spray bottom feed

1.4- 1.6 mm/3 - 4 bar

• • •

Nozzle size/pressure

5 - 7.5 %

Dilution Thinner

1.2.3 Thinner Fast

-

-

Viscosity, DIN Cup 4 (at +20°C (+68°F))

16 - 17 s

-

Application conditions

+10°C (+50°F)

+20°C (+68°F) optimum

• •

below 80%

50% optimum

Film thickness

50 µm

-

Theoretical spreading rate

18 m2/l

-

Temperature (min.) Relative humidity

More detailed painting instructions are available from paint suppliers.

16

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Painting Flexi Multiradio BTS hardware

3.4 Recoating Recoating can be done when it is necessary to replace the original color with a different one, for example, when required by the premise owner. Using the same paint types (with a suitable color) for recoating as for repair painting is recommended. The following must be taken into account when painting:

• • • • • • • • •

Issue: 02

Flexi units must be removed from the cabinet or casing before painting. Elastomeric parts (such as cable entries) must be masked during the painting process. Grounding points must be masked and not painted over. When painting a Remote Radio Head, the IP seals must be in place and replaced after the painting. Gore vents must be masked. For recoating plastic parts, use suitable paints for the used material. See the recycling marking for material details. Painting of any plastic parts must be performed in a clean indoor environment only (for example, in a car paintshop). Do not paint the cables. Black color should be avoided in cases where the BTS can be located in direct sunlight.

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Nokia Networks

LTE Radio Access, Rel. FDDLTE 15A, Operating Documentation, Issue 02 Replacing Flexi Multiradio Base Station Units DN09182525 Issue 04A Approval Date 2015-09-22

Replacing Flexi Multiradio Base Station Units

The information in this document applies solely to the hardware/software product ("Product") specified herein, and only as specified herein. This document is intended for use by Nokia Solutions and Networks' customers ("You") only, and it may not be used except for the purposes defined in the agreement between You and Nokia Solutions and Networks ("Agreement") under which this document is distributed. No part of this document may be used, copied, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Solutions and Networks. If you have not entered into an Agreement applicable to the Product, or if that Agreement has expired or has been terminated, You may not use this document in any manner and You are obliged to return it to Nokia Solutions and Networks and destroy or delete any copies thereof. The document has been prepared to be used by professional and properly trained personnel, and You assume full responsibility when using it. Nokia Solutions and Networks welcome Your comments as part of the process of continuous development and improvement of the documentation. This document and its contents are provided as a convenience to You. Any information or statements concerning the suitability, capacity, fitness for purpose or performance of the Product are given solely on an "as is" and "as available" basis in this document, and Nokia Solutions and Networks reserves the right to change any such information and statements without notice. Nokia Solutions and Networks has made all reasonable efforts to ensure that the content of this document is adequate and free of material errors and omissions, and Nokia Solutions and Networks will correct errors that You identify in this document. But, Nokia Solutions and Networks' total liability for any errors in the document is strictly limited to the correction of such error(s). Nokia Solutions and Networks does not warrant that the use of the software in the Product will be uninterrupted or error-free. NO WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF AVAILABILITY, ACCURACY, RELIABILITY, TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS MADE IN RELATION TO THE CONTENT OF THIS DOCUMENT. IN NO EVENT WILL NOKIA SOLUTIONS AND NETWORKS BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT, EVEN IN THE CASE OF ERRORS IN OR OMISSIONS FROM THIS DOCUMENT OR ITS CONTENT. This document is Nokia Solutions and Networks' proprietary and confidential information, which may not be distributed or disclosed to any third parties without the prior written consent of Nokia Solutions and Networks. Nokia is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only. Copyright © 2015 Nokia Solutions and Networks. All rights reserved.

f

Important Notice on Product Safety This product may present safety risks due to laser, electricity, heat, and other sources of danger. Only trained and qualified personnel may install, operate, maintain or otherwise handle this product and only after having carefully read the safety information applicable to this product. The safety information is provided in the Safety Information section in the "Legal, Safety and Environmental Information" part of this document or documentation set.

Nokia Solutions and Networks is continually striving to reduce the adverse environmental effects of its products and services. We would like to encourage you as our customers and users to join us in working towards a cleaner, safer environment. Please recycle product packaging and follow the recommendations for power use and proper disposal of our products and their components. If you should have questions regarding our Environmental Policy or any of the environmental services we offer, please contact us at Nokia Solutions and Networks for any additional information.

2

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Replacing Flexi Multiradio Base Station Units

Table of Contents This document has 106 pages Summary of changes..................................................................... 9 1

Disconnecting cables................................................................... 10

2 2.1

Replacing module fans.................................................................13 Replacing module fans from the back..........................................13 Replacing module fans from the front.......................................... 14

2.2 2.3 2.4

Replacing sheet metal fan carrier................................................ 18

2.5

Replacing module fans for RF Module (FXxx) ............................ 29

3 3.1

Replacing modules.......................................................................44 Replacing RF Module...................................................................44

3.1.1

3.1.2.2

Replacing faulty RF Module......................................................... 44 Replacing Single and Dual RF Modules with 3-sector RF Module.. 47 Replacing Single and Dual RF Modules with Flexi Multiradio RF Module FRGT...............................................................................47 Reusing Flexi 3U Casing + FMCA (Front and Back Cover)......... 50

3.2

Replacing System Module........................................................... 51

3.3

Replacing transmission sub-module............................................ 55

3.4 3.5

Replacing Flexi Power Distribution and Fuses (FPFx) Submodule. 59 Replacing Flexi Power Module (FPMA)....................................... 66

3.6

Replacing FPMA power sub-modules..........................................68

3.6.1 3.6.2

Replacing AC/DC sub-module (FPAA).........................................68 Replacing battery sub-module (FPBA/FPBB).............................. 70

4

Replacing Remote Radio Head (RRH)........................................ 72

5

Replacing RRH solar shield or plastic cover................................ 76

6

Replacing Flexi System External Alarm Module (FSEB)............. 78

7

Replacing Flexi System External OVP FSES with FSEP.............79

8

HW replacement/upgrade............................................................ 92

9 9.1

Returning faulty units................................................................... 93 Packing in a spare unit package.................................................. 94

9.2

Extra shipping package................................................................94

9.3 9.4

Loading into a container...............................................................95 Loading onto a pallet....................................................................96

10

Torque values...............................................................................98

3.1.2 3.1.2.1

Issue: 04A

Replacing plastic fan carrier.........................................................23

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11 11.1

Appendix LED indications............................................................ 99 System Module LED indications.................................................. 99

11.2

RF Module and Remote Radio Head (RRH) LED indications....100

11.3

Flexi Power sub-module (FPAA and FPBA/FPBB) LED indications ................................................................................................... 103 Flexi Power DC/DC Module (FPDA) LED indications................ 105

11.4

4

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Replacing Flexi Multiradio Base Station Units

List of Figures

Issue: 04A

Figure 1

Detaching the cable connector seal................................................... 10

Figure 2

Disconnecting power cable................................................................. 11

Figure 3

Disconnecting the Ethernet cable....................................................... 11

Figure 4

Disconnecting the optical transceiver................................................. 12

Figure 5

Replacing module fan from the back.................................................. 13

Figure 6

Removing module core.......................................................................15

Figure 7

Removing fan plate sub-assembly..................................................... 16

Figure 8

Installing new fan plate sub-assembly................................................17 Re-

Figure 9

installing module core................................................................... 17

Figure 10

Position of the fan connector and screws...........................................30

Figure 11

Remove the screws............................................................................ 31

Figure 12

Pull the fan plate out...........................................................................31

Figure 13

Removing the fan connector in 60 W RF Module...............................32

Figure 14

Removing the fan connector in 80 W RF Module...............................32

Figure 15

Remove the fan assembly.................................................................. 33

Figure 16

Position of the fan connector and screws...........................................34

Figure 17

Remove the screws............................................................................ 34

Figure 18

Pull the fan plate out...........................................................................35

Figure 19

Removing the fan connector in 60 W RF Module...............................36

Figure 20

Removing the fan connector in 80 W RF Module...............................36

Figure 21

Remove the fan assembly.................................................................. 37

Figure 22

Aligning the arrows and connecting the fan connector in 60 W RFM..... 38

Figure 23

Aligning the arrows and connecting the fan connector in 80 W RFM..... 38

Figure 24

Slide the new fan assembly................................................................39

Figure 25

Proper Alignment of guide holes........................................................ 39

Figure 26

Aligning the arrows and connecting the fan connector in 60 W RFM..... 41

Figure 27

Aligning the arrows and connecting the fan connector in 80 W RFM..... 41

Figure 28

Slide the new fan assembly................................................................42

Figure 29

Proper Alignment of guide holes........................................................ 42

Figure 30

Replacing RF Module......................................................................... 45

Figure 31

DC cable.............................................................................................48

Figure 32

Optical port......................................................................................... 49

Figure 33

FRGT..................................................................................................50

Figure 34

FMCA A.206 front cover welding points............................................. 50

Figure 35

Regular file with end size 5 mm x 20 mm...........................................51

Figure 36

Each ultrasonic welding point loosened separately............................51

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Replacing Flexi Multiradio Base Station Units

6

Figure 37

Replacing System Module..................................................................53

Figure 38

Replacing transmission sub-module...................................................56

Figure 39

Pulling the module out of the casing...................................................59

Figure 40

Removing the cable tie from the fan carrier........................................60

Figure 41

Removing the cable tie from DC power cable tie point.......................61

Figure 42

Disconnecting DC power cable.......................................................... 61

Figure 43

Loosening FPFx screws from System Module................................... 62

Figure 44

Removing FPFx submodule............................................................... 62

Figure 45

Location of the FCM-FPF connection card.........................................63

Figure 46

Fixing FPFx submodule to System Module........................................ 63

Figure 47

Connecting DC power cable...............................................................64

Figure 48

Fixing DC power cable....................................................................... 64

Figure 49

Connecting and fixing the cable to fan carrier.................................... 65

Figure 50

Inserting System Module into casing..................................................65

Figure 51

Installing the System Module casing front cover................................ 66

Figure 52

Changing the FPAA fan airflow direction (AcBel)............................... 69

Figure 53

Changing the FPAA fan airflow direction (Efore)................................ 70

Figure 54

Securing RRH with lifting hook........................................................... 73

Figure 55

Disconnecting the cables on the module............................................74

Figure 56

RRH solar shield.................................................................................76

Figure 57

Disconnecting FSES cabling.............................................................. 79

Figure 58

Installing FSEP enclosure.................................................................. 80

Figure 59

Connecting FSEP grounding cable to plinth.......................................81

Figure 60

Removing 3-pole DC IP boot..............................................................82

Figure 61

Wrapping tape around shielded DC cable.......................................... 82

Figure 62

Wrapping extra tape around DC cable............................................... 83

Figure 63

Inserting DC power cable to IP boot...................................................83

Figure 64

Removing narrow end of IP boot........................................................ 84

Figure 65

Properly secured shielded DC cable (left) and non-shielded DC cable (right).................................................................................................. 85

Figure 66

Connecting DC feeder cable wires..................................................... 85

Figure 67

Fixing IP boot screw........................................................................... 86

Figure 68

Example of conduit usage.................................................................. 87

Figure 69

Fixing DC feeder cable to cable entry................................................ 88

Figure 70

Connecting 2-pole DC interface......................................................... 89

Figure 71

Connecting FSEP alarm cable........................................................... 90

Figure 72

Two versions of "ATTENTION!!!" warning labels and their Chinese translations......................................................................................... 93

Figure 73

"Delivery box" label allows shipping without extra package............... 93

Figure 74

Use spare part packaging to return faulty units.................................. 94

Figure 75

Correct procedure for packing the shipping box.................................95

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Replacing Flexi Multiradio Base Station Units

Issue: 04A

Figure 76

Container for larger shipments........................................................... 96

Figure 77

Pallet shipment................................................................................... 97

Figure 78

System Module LED positions............................................................99

Figure 79

Flexi Power Module AC/DC sub-module (FPAA) LED..................... 104

Figure 80

Flexi Power Battery sub-module (FPBA/FPBB) LED....................... 105

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Replacing Flexi Multiradio Base Station Units

List of Tables

8

Table 1

RAT releases covered by the document...............................................9

Table 2

Torque values for the BTS.................................................................. 98

Table 3

System Module LEDs (from left to right).............................................99

Table 4

RF Module unit status LED indications.............................................101

Table 5

RRH unit status LED indications...................................................... 102

Table 6

2x40 W RRH TX Status LED............................................................103

Table 7

Flexi Power Module AC/DC sub-module (FPAA) LED indications... 104

Table 8

Flexi Power Battery sub-module (FPBA/FPBB) LED indications..... 105

Table 9

Flexi Power DC/DC Module (FPDA) LED indications.......................106

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Summary of changes

Summary of changes Changes between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues. This document is common for all Radio Access Technologies (RAT). You may find here information about solutions that are not available or supported in a specific SW release or RAT. Table RAT releases covered by the document lists all SW releases covered by the content of this document. For features supported in your SW release, see respective feature documentation chapter in the system library. Table 1

RAT releases covered by the document

Product

Release

GSM/EDGE (BSS)

RG30 (BSS), RG40 (BSS)

WCDMA RAN

RU40, RU50, RU50 EP1, WCDMA 16

Long Term Evolution

RL50, RL60, RL70, FDD LTE15A

Changes between issues 04 (2015-07-21) and 04A (2015-09-22) New chapter: Replacing Flexi System External OVP FSES with FSEP

Changes between issues 03 (2015-06-17) and 04 (2015-07-21) Updated chapters: Replacing System Module

•

Notice on replacing Extension System Module updated.

Changes between issues 02 (2015-02-06) and 03 (2015-06-17) Updated chapters: Replacing Single and Dual RF Modules with 3-sector RF Module

•

Entire chapter updated.

Replacing RRH solar shield or plastic cover

•

Issue: 04A

Information about plastic covers added.

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1 Disconnecting cables Purpose Disconnecting cables might be needed when, for example, changing configurations, recommissioning or replacing modules. NOTICE: Optical fibre cables are fragile. Be careful when disconnecting any cables.

1

Remove any cable ties.

2

Detach the cable connector seal from the module mechanics. Grip the connector seal by the stiffened end of the seal (the end connected to the connector) as shown in the Figure Detaching the cable connector seal. Figure 1

10

Detaching the cable connector seal

3

To ease pulling out the connector seal, drop a dribble of water on the cable (on the edge of the seal).

4

Hold the cable with one hand and pull the seal backwards with your other hand so that the connector is exposed.

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5

Disconnecting cables

If you are disconnecting an optical cable or a power cable, push the locking clips all the way down and hold the clips. Then pull the connector out carefully. See Figure Disconnecting power cable for details. Figure 2

Disconnecting power cable

If the locking clip is hard to push down, push the connector slightly toward the module, and then push the clip down. The optical cable has a locking clip on the top of the connector, and the power cable has locking clips on either side of the connector.

6

If you are disconnecting the Ethernet cable, simultaneously push the locking clip all the way down and pull back. Figure 3

Issue: 04A

Disconnecting the Ethernet cable

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Disconnecting cables

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7

If you are disconnecting an optical transceiver, first turn the locking ring into a horizontal position and then pull the optical transceiver out. Figure 4

12

Disconnecting the optical transceiver

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Replacing module fans

2 Replacing module fans 2.1 Replacing module fans from the back Purpose If a module fan fails, it must be replaced with a new one. Replacing the fan from the back of the module requires a back access and a minimum of 200 mm (7.87 in) maintenance space behind the BTS (for stacks larger than 6U, 500 mm (19.69 in.) with side access). If there is not enough space for replacing the fans from the back, the fans can also be replaced from the front. See section Replacing module fans from the front in this document for more detailed instructions. These instructions show how to replace the module fans if you have a sheet metal fan carrier. If you have a plastic fan carrier, see section Replacing plastic fan carrier in this document. Before you start CAUTION! Risk of personal injury. Do not touch the fans.

NOTICE: The modules might be damaged if operated for a long time in the upper ambient temperature range. Replace a faulty unit as soon as possible. Summary Figure 5

Issue: 04A

Replacing module fan from the back

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

1

Shut down the module, if necessary. It is also possible to replace the fans during operation. Shutting down is the recommended option.

2

Connect the ESD wrist strap to your wrist and then to the plinth.

3

Detach the module back cover. Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

4

Disconnect the fan cables.

5

Detach the screws and the fan plate from the module core.

6

Remove the fan plate.

7

Install the new fan plate and connect the fan cable. Make sure that the IP sealing is in place.

8

Reinstall the module back cover.

2.2 Replacing module fans from the front Purpose If a module fan fails, it must be replaced with a new one. Modules can be replaced from the front of the base station by pulling out the module core. The module core can be pulled out without dismounting the module stack. These instructions show how to replace the module fans if you have a sheet metal fan carrier. If you have a plastic fan carrier, see section Replacing plastic fan carrier in this document. Before you start NOTICE: The modules might be damaged if operated for a long time in the upper ambient temperature range. Replace a faulty unit as soon as possible. NOTICE: The fans might break if the module core rests on the fans when it is out of the casing. Do not rest the core on the fans.

14

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Replacing module fans

Check whether the maintenance straps inside the module covers are damaged when opening the covers for maintenance purposes. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

1

If you are replacing an RF Module fan, see Replacing RF Module for instructions how to remove the module core from the casing.

2

If you are replacing a System Module fan, see Replacing System Module for instructions how to remove the module core from the casing.

3

Disconnect the module front panel cables. Figure 6

Issue: 04A

Removing module core

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Replacing module fans

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4

Loosen the cable entry screws and remove the cable entries.

5

Detach module fixing screws.

6

Pull out the module core from the casing.

7

Disconnect the fan cables. Figure 7

Removing fan plate sub-assembly

7

8

16

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Replacing module fans

8

Remove the fan plate sub-assembly from the fan carrier.

9

Install the new fan plate sub-assembly to the fan carrier. Figure 8

Installing new fan plate sub-assembly

10

9

DN70555217

10 Connect the fan cable. Make sure that the IP sealing is properly in place.

11 Insert the core in the module casing. Figure 9

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Re-installing module core

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

12 Fix the core to the casing with screws. Tighten the screws to 5 Nm (3.69 ft lbs).

13 Install cable entries.

14 Connect the cables to the module front panel.

15 Reroute and coil up the cabling.

16 Turn the power back on. Make sure that the LED is lit, and that the fan is rotating and nothing is obstructing it.

2.3 Replacing sheet metal fan carrier Purpose The fan carrier must be replaced when it is damaged. Before you start The cables located between RF Module filter and power amplifier must never be disconnected. Make sure not to damage those cables while performing the replacement procedure.

1

Disconnect the fan cables.

1

2

18

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Replacing module fans

2

Remove the fan plate sub-assembly from the fan carrier.

3

Cut the cable ties holding the fan cable and detach the connector.

3

4

Detach the connection sink from the fan carrier. Press the two latches on the top of the connection sink and pull upwards.

4

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

5

Rotate the connection sink slightly and pull it out.

5

6

Detach the fan carrier screws (4 x M4) and the fan carrier from the module core.

6

6

6

20

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7

Replacing module fans

Install the fan carrier to the module core. Fix with four M4 screws. Tighten to 2.2 Nm (1.62 ft lbs).

7

7

7

8

Install the connection sink to the new fan carrier.

8

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Replacing module fans

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9

Connect the connector and fix with a cable tie.

9

10 Install the new fan plate sub-assembly to the fan carrier. Fix with four M5 screws. Tighten to 3.0 Nm (2.21 ft lbs).

11 10

22

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11 Connect the fan cable.

2.4 Replacing plastic fan carrier Purpose The fan carrier must be replaced when it is damaged. Before you start The cables located between RF Module filter and power amplifier must never be disconnected. Make sure not to damage those cables while performing the replacement procedure.

1

Disconnect the fan cables.

2 1

3

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

2

Cut the cable ties.

3

Detach the fan plate sub-assembly from the fan carrier.

4

Cut the cable tie from the back.

4

5

Detach the connector from the back.

6

Detach the connection sink from the fan carrier.

5

Press the two latches on the top of the connection sink and pull upwards.

24

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Replacing module fans

6

7

Rotate the connection sink slightly and pull it out.

7

8

Detach the fan carrier screws (4 x M4) and the fan carrier from the module core. Note that the 3-sector RF Module fan carrier is only attached with two screws.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

8

8

8

9

Install the fan carrier to the module core. Fix with four M4 screws. Tighten to 1.0 Nm (0.74 ft lbs).

26

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Replacing module fans

9

9

9

10 Install the connection sink to the new fan carrier.

10

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Replacing module fans

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11 Connect the connector.

12 11

DN70422945

12 Fix with a cable tie.

13 Install the new fan plate sub-assembly to the fan carrier. Apply plastic friendly adhesive (or thread locking compound, for example Loctite 243) over the screws before installing the fans. Tighten the screws to 1.0 Nm (0.74 ft lbs).

14 15

13

28

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Replacing module fans

14 Fix the fan cable with cable ties.

15 Connect the fan cable.

2.5 Replacing module fans for RF Module (FXxx) Purpose If a module fan fails or becomes degraded, replace it with a new one. In stack, wall, pole and Flexi Cabinet for Indoor (FCIA) installation, fans can be replaced from the back of the module if there is enough space behind the BTS. For information on the required clearances for maintenance, see Module clearances or FCIA clearances and anchoring holes in Flexi Multiradio Base Station Installation Site Requirements. When removing fans from the back of FCIA, you need to remove the back panel. For instructions, see Removing the back panel of FCIA for fan maintenance in Maintaining Flexi Cabinet for Indoor. When removing fans from the back, make sure you have a screwdriver that fits the clearance. For example, if the clearance is 300 mm (11.8 in.), the screwdriver should be shorter than 300 mm (11.8 in.). If there is not enough space for replacing the fans from the back, you can also replace the fans from the front. In this case you need to disable power to the module and pull it out from the casing or cabinet. For instructions on how to remove the module, see Replacing RF Module (FXxx). In Flexi Cabinet for Outdoor (FCOA), fans are replaced from the front. Note that when replacing fans, an alarm indicating a broken fan may be seen. After you have replaced the fan, the alarm is cancelled. Before you start Shut down the module before replacing fans. See instructions in Replacing RF Module (FXxx). CAUTION! Risk of personal injury. Do not touch the rotating fans.

NOTICE: Risk of damage to equipment. The modules may be damaged if operated for a long time in the upper ambient temperature range. Replace a faulty unit as soon as possible.

Removing the fan assembly of RF Module 1

Block the TRXs associated with the module that has the faulty fan assembly, with Flexi BTS Site Manager. If Baseband or Antenna Hopping is used, block the entiresector. Alternatively, you can request to lock the TRXs/sector/BCF from the BSC.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

When the object is blocked with the Flexi BTS Site Manager, the BTS waits until the maximum timeout for the BSC to transfer calls before changing the LED status to indicate that the sector is locked. 2

Connect the ESD wrist strap.

3

Wait for the RF Module Status LED to change to a blinking green state, which indicates traffic has been blocked.

4

Disable power to the module with the Flexi BTS Site Manager. See Disabling and enabling power with the 2G Flexi BTS Site Manager.

5

If this is a pole, wall, stack, or FCIA installation with back maintenance access, remove the back cover or back wall.

6

If back maintenance access is not available, remove the module. Note that if this is a pole, wall, or stack installation, you will need to also remove the front covers and cable entries before removing the module.

7

Detach the six M4 screws on the fan assembly. Figure 10

30

Position of the fan connector and screws.

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Figure 11

8

Remove the screws

Pull the fan plate out. Figure 12

9

Replacing module fans

Pull the fan plate out

Removing the fan connector. Depending on the module type perform the following:

•

Issue: 04A

For 60 W RF Module variants, twist the fan connector counter-clockwise and gently pull it out to disconnect it from the RF module.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

Figure 13

•

Removing the fan connector in 60 W RF Module

For 80 W RF Module variants, pull the connector apart. Figure 14

Removing the fan connector in 80 W RF Module

Do not twist the connectors.

32

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Replacing module fans

10 Remove the fan assembly. Figure 15

Remove the fan assembly

Steps

1

Block the TRXs associated with the module that has the faulty fan assembly, with Flexi BTS Site Manager. If Baseband or Antenna Hopping is used, block the entiresector. Alternatively, you can request to lock the TRXs/sector/BCF from the BSC. When the object is blocked with the Flexi BTS Site Manager, the BTS waits until the maximum timeout for the BSC to transfer calls before changing the LED status to indicate that the sector is locked.

2

Connect the ESD wrist strap.

3

Wait for the RF Module Status LED to change to a blinking green state, which indicates traffic has been blocked.

4

Disable power to the module with the Flexi BTS Site Manager. See Disabling and enabling power with the 2G Flexi BTS Site Manager.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

5

If this is a pole, wall, stack, or FCIA installation with back maintenance access, remove the back cover or back wall.

6

If back maintenance access is not available, remove the module. Note that if this is a pole, wall, or stack installation, you will need to also remove the front covers and cable entries before removing the module.

7

34

Detach the six M4 screws on the fan assembly. Figure 16

Position of the fan connector and screws.

Figure 17

Remove the screws

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8

Pull the fan plate out. Figure 18

9

Replacing module fans

Pull the fan plate out

Removing the fan connector. Depending on the module type perform the following:

•

Issue: 04A

For 60 W RF Module variants, twist the fan connector counter-clockwise and gently pull it out to disconnect it from the RF module.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

Figure 19

•

Removing the fan connector in 60 W RF Module

For 80 W RF Module variants, pull the connector apart. Figure 20

Removing the fan connector in 80 W RF Module

Do not twist the connectors.

36

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Replacing module fans

10 Remove the fan assembly. Figure 21

Remove the fan assembly

Installing the fan assembly of RF Module 1

Align the arrows on the fan connector and the RF Module fan connector and push the connector. Depending on the module type perform the following:

•

Issue: 04A

For 60 W RF Module variants, align the arrows of the new fan module's fan connector and the RF Module's fan connector, and push the connector in. The connector will make a 'click' sound when connected.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

Figure 22

•

For 80 W RF Module variants, align the arrow of the new fan assembly connector with the arrow of the existing module fan connector. Push the connectors together until you hear a 'click' sound. Figure 23

2

Aligning the arrows and connecting the fan connector in 60 W RFM

Aligning the arrows and connecting the fan connector in 80 W RFM

Slide the new fan assembly in the module. Make sure that the fan cables do not block the airflow.

38

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Figure 24

Replacing module fans

Slide the new fan assembly

Use the guide holes to make sure the plate is properly aligned. Figure 25

Proper Alignment of guide holes

3

Tighten the six screws.

4

If the module was removed, reinstall the module and its cables.

5

Enable power to the module with the Flexi BTS Site Manager. See Disabling and enabling power with the 2G Flexi BTS Site Manager.

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Replacing module fans

Replacing Flexi Multiradio Base Station Units

6

Check that the new fans start to rotate.

7

Check that the fan alarm (which was activated when the faulty fan module was removed) is cancelled from Flexi BTS Site Manager.

8

Unblock the TRXs or sector with Flexi BTS Site Manager. Alternatively, if the TRXs or sector were locked from the BSC, request to unlock them from the BSC.

9

Re-install any removed cable entries, covers, or back wall.

Steps

1

Align the arrows on the fan connector and the RF Module fan connector and push the connector. Depending on the module type perform the following:

•

40

For 60 W RF Module variants, align the arrows of the new fan module's fan connector and the RF Module's fan connector, and push the connector in. The connector will make a 'click' sound when connected.

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Figure 26

•

Aligning the arrows and connecting the fan connector in 60 W RFM

For 80 W RF Module variants, align the arrow of the new fan assembly connector with the arrow of the existing module fan connector. Push the connectors together until you hear a 'click' sound. Figure 27

2

Replacing module fans

Aligning the arrows and connecting the fan connector in 80 W RFM

Slide the new fan assembly in the module. Make sure that the fan cables do not block the airflow.

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Replacing Flexi Multiradio Base Station Units

Figure 28

Slide the new fan assembly

Use the guide holes to make sure the plate is properly aligned.

t

Figure 29

Proper Alignment of guide holes

3

Tighten the six screws.

4

If the module was removed, reinstall the module and its cables.

5

Enable power to the module with the Flexi BTS Site Manager. See Disabling and enabling power with the 2G Flexi BTS Site Manager.

42

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Replacing module fans

6

Check that the new fans start to rotate.

7

Check that the fan alarm (which was activated when the faulty fan module was removed) is cancelled from Flexi BTS Site Manager.

8

Unblock the TRXs or sector with Flexi BTS Site Manager. Alternatively, if the TRXs or sector were locked from the BSC, request to unlock them from the BSC.

9

Issue: 04A

Re-install any removed cable entries, covers, or back wall.

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Replacing modules

Replacing Flexi Multiradio Base Station Units

3 Replacing modules 3.1 Replacing RF Module 3.1.1 Replacing faulty RF Module Purpose If an RF Module fails and you have done troubleshooting, the RF Module core must be replaced with a new one. The module core can be pulled out from the casing and replaced without dismounting the module stack. Before you start The RF Module core can be replaced without shutting down the BTS; the System Module and the remaining RF Modules remain functional during the operation. Depending on the failure type, it is recommended that the module is run down with the BTS Site Manager. Even when an RF Module is faulty or has been blocked as a result of operator's activity, the RF Module fans might still work.

NOTICE: Installing and commissioning of BTS products must be performed by an expert familiar with electronic devices, to avoid damage caused by improper handling.

WARNING! Risk of electric shock. Before turning RF power on, RF ports should be terminated by nominal 50Ω load (for example, feeder with antenna). However, if these conditions are not met, the plastic caps that are delivered within the unused RF ports should remain in place. The plastic caps isolate RF power from the environment, and thus provide electric shock security in case RF power is accidentally on. Summary

44

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Figure 30

1

Replacing modules

Replacing RF Module

Loosen the screws and remove the module front cover (if installed). Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

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Replacing modules

Replacing Flexi Multiradio Base Station Units

2

Connect the ESD wrist strap to your wrist and then to the plinth.

3

Run down the faulty RF Module with the BTS Site Manager.

4

Switch off the faulty RF Module fuse on the System Module front panel.

5

Disconnect the cables on the RF Module front panel.

w

NOTICE: Optical fibre cables and cable connectors are sensitive. Keep optical fibre cables and cable connectors clean.

6

Pull aside all the cabling routed in front of the RF Module to be replaced, if any.

7

Loosen the cable entry screws and remove the cable entries.

8

Detach the module fixing screws.

9

Pull out the module core from the casing.

CAUTION! Risk of personal injury. The module core is hot. Do not remove the module core until it has cooled down.

CAUTION! Risk of personal injury. The module is heavy. Take care when lifting the module.

10 Insert the new core in the module casing.

11 Fix the core to the casing with screws and tighten to 5 Nm (3.69 ft lbf).

12 Install the cable entries and tighten the screws.

13 Install the optical transceiver to the RF Module.

14 Connect the cables to the RF Module front panel as instructed in the Cabling Flexi Multiradio BTS [technology] document. a) Connect the antenna cables. b) Connect the optical cable. c) Connect the internal power cable.

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Replacing modules

15 Reroute and coil up the cabling.

16 Push the connector seals firmly in place.

17 Check that the connectors are properly connected.

18 Switch on the RF Module fuse on the System Module front panel.

19 Commission the BTS with the BTS Site Manager.

3.1.2 Replacing Single and Dual RF Modules with 3-sector RF Module 3.1.2.1 Replacing Single and Dual RF Modules with Flexi Multiradio RF Module FRGT Purpose The following instructions show how to replace 1+1+1 with 2xFRGC stack configuration with FRGT. These instructions are applicable to other 3-sector modules.

1

Block the cells.

2

Shut down the BTS.

3

Disconnect the optical cables and optical transceivers from RFM1 and RFM2.

4

Disconnect the DC cables from RFM1 and RFM2.

5

Disconnect the antenna feeders from RFM1 and RFM2.

6

Disconnect the grounding cables from RFM1 and RFM2.

7

Loosen the fastening screws and remove the RF Modules from their casings.

8

Install FRGT in a free 3U casing. For more information, see Reusing Flexi 3U casing + FMCA (front and back cover).

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9

Insert the IP boot to the DC cable prior to connecting it.

10 Connect the DC supply cable. FRGT requires an AWG10 size DC supply cable as a minimum. An AWG12-sized DC supply cable assembly 994808A was delivered with Flexi Dual and Single RF Modules. It cannot be used with FRGT. The following options can be used for FRGT DC voltage supply in stack configurations:

• •

FPCC 472823A.202 (AWG10 - 2 meters): DC Cable assembly, one end with a multi-beam connector, other end open. DC cable assembly 995281B (AWG10 - 2 meters): Both ends with multi-beam connectors (one of them needs to be cut off).

Figure 31

DC cable

11 Connect the grounding cable.

12 Install the existing optical transceivers (SFP) and connect optical cables. Note that the FRGT optical port angle is flipped 180 degrees compared to Flexi Rel 1 and Rel 2 RF Modules. Existing optical cables and optical transceiver (SFP) modules can be reused on FRGT installation for the 3GB OBSAI link.

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Figure 32

Replacing modules

Optical port

13 Connect the antenna feeders.

14 Fasten the IP seals for the DC cable and optical connection. Optical transceiver (SFP) angle is 180 degrees different compared to Flexi Rel 1 and Rel 2 RF Modules. A pre-bent optical cable turns to the right, and the optical cable needs routing outside the front cover. Bending radiuses for D7 mm and D5 mm optical cables are 70 mm (2.76 in) and 50 mm (1.97 in) respectively.

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Figure 33

FRGT

15 Switch on the BTS and recommission it.

3.1.2.2 Reusing Flexi 3U Casing + FMCA (Front and Back Cover) Purpose The following instructions show how to modify an FMCA front cover to correspond to the FMCA A.207 version by removing the air deflector plate. Before you start Flexi Multiradio RF Module FRGT can be installed inside a 19-inch rack without a casing. In a stand-alone 19-inch rack installation, front and back covers must be installed for safety purposes. A casing is required to mount the rear cover. Therefore, Flexi Module Casing (EMHA) for 3 height units (3U) 470316A is required for installation. In modernization cases Flexi Multiradio RF Module FRGT can be installed inside existing Flexi 3U casing versions. Existing RF cable entries can be reused for FRGT installation. An existing front cover need to be modified. The air deflector plate is ultrasonic welded to the front cover. There are six welding points on the front cover. Figure 34

50

FMCA A.206 front cover welding points

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Replacing modules

For air deflector plate removal, use a regular file or similar kind of blunt end tool, which end size is approximately 5 mm x 20 mm (0.2 in x 0.79 in). Do not use a screwdriver, because the end size is too narrow and it can create sharp corners on the front cover. Figure 35

Regular file with end size 5 mm x 20 mm

1

Place the file end close to the air deflector ultrasonic welding point.

2

Loosen the ultrasonic welding point with a sharp hit to the file handle. Each ultrasonic welding point needs to be loosened separately. Figure 36

Each ultrasonic welding point loosened separately

3

Remove the air deflector plate.

4

Ensure that there are no sharp corners, which could damage the cables, on the front cover.

Flexi 3U Mounting Covers Front/Back FMCA version 470239A.207 and EDGE Mechanical 3U Unit EMHA version 470316A.209 include a front cover without an air deflector plate.

3.2 Replacing System Module Purpose If the System Module fails, the module core must be replaced with a new one. The module core can be pulled out from the casing and replaced without dismounting the module stack. Before you start The BTS must be shut down when the System Module is replaced.

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If the System Module to be replaced acts as the Extension System Module, it can be hot swapped.

NOTICE: When replacing the Extension System Module with a Module of a different capacity (for example, when replacing the FSME with the FSMD), do the following: 1.

Remove the current Extension System Module.

2. 3.

Perform Site Reset using the Site Manager. Remove the unit in Site Manager.

4. 5.

Insert the new Extension System Module. Perform the BTS reset.

Take a commissioning file backup before replacing the module. Summary

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Figure 37

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1

Block the BTS with the BTS Site Manager.

2

Shut down the BTS by switching off all the fuses on the System Module.

3

Disconnect the DC power mains breaker.

4

Connect the ESD wrist strap to your wrist and then to the plinth.

5

If the front panel cover is installed, loosen the screws and remove the module front panel cover. Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

6

Disconnect the cables in the System Module front panel.

7

Loosen the cable entry screws and remove the cable entries.

8

Detach the module fixing screws.

9

Pull the module core out of the casing.

10 Disconnect the power cable.

11 Uninstall the transmission sub-module. Make sure that the FCM-FTM connection card is in place at the new module core. For additional information on how to uninstall and install the transmission submodule, see Replacing transmission sub-module in this document.

12 Install the transmission sub-module to the new module core.

13 Connect the power cable to the FPFA or FPFB sub-module (depending on your System Module version) of the new System Module core. Check that the polarity is correct. Connect the wires to the V48N- and V48RTN+ connectors according to the markings on the cable. NOTICE: Risk of power supply failure and, in rare cases, of short circuit. Check that the polarity is correct according to the markings on the cable.

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14 Insert the new core in the module casing.

15 Fix the core to the casing with screws and tighten to 5 Nm (3.69 ft lbs).

16 Install the cable entries and tighten the screws.

17 Install the optical transceivers to the System Module.

18 Connect the cables to the System Module front panel.

19 Reroute and coil up the cabling.

20 Push the connector seals firmly in place.

21 Check that the connectors are properly connected.

22 Switch on the DC mains power.

23 Restart and commission the BTS.

3.3 Replacing transmission sub-module Purpose If the transmission sub-module fails, or the transmission sub-module type changes, the transmission sub-module needs to be replaced with a new one. A faulty FTIA, FTIB, FTJA or FTLB transmission sub-module must be returned to Nokia Hardware Services (HWS) without the SFP transceiver units. When replacing transmission sub-modules, the FCM-FTM connection card and the screws are not part of HWS returned or repaired units. Before you start The BTS must be shut down when the transmission sub-module is replaced. Take a commissioning file backup before replacing the module. It is recommended that the transmission sub-module be replaced in dry and clean conditions. NOTICE: If the transmission sub-module is hot swapped, it should be inserted to the System Module with factory settings or the transmission sub-module should be recommissioned without connectivity to the transport network.

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Summary Figure 38

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Replacing transmission sub-module

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1

Block the BTS with the BTS Site Manager.

2

Connect the ESD wrist strap to your wrist and then to the plinth.

3

Shut down the BTS by switching off all the fuses on the System Module.

4

Disconnect the DC power mains breaker.

5

If the front panel cover is installed, loosen the screws and remove the module front panel cover. Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

6

Disconnect the cables on the System Module front panel (if needed).

7

Disconnect the transmission cables.

8

Loosen the cable entry screws and remove the cable entries.

9

Detach the module fixing screws.

10 Pull out the module core from the casing.

11 Loosen the 4 x M5 screws and detach the transmission sub-module. Make sure that the FCM-FTM connection card stays in system module.

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12 Check that the FCM-FTM connection card on the System Module is straight.

13 Align the new transmission sub-module with the two guide pins in the System Module, and push the sub-module in place.

14 If your transmission sub-module is FTOA, install the optical transceiver (delivered with the new unit).

15 If your transmission sub-module is FTIA, FTIB or FTJA and you use an optical GE interface, move the optical transceiver (SFP module) from the old unit to the new unit or replace the transceiver with a new one (not included in the delivery). For specifications of suitable SFP modules, see Ethernet Small Form-factor Pluggable (SFP) transceivers in the Flexi Multiradio BTS WCDMA Transmission Description document.

16 Fix the transmission sub-module with 4 x M5 screws and tighten to 4 Nm (2.95 ft lbs).

17 Insert the module core inside the module casing.

18 Fix the core to the casing with screws and tighten to 5 Nm (3.69 ft lbs).

19 Install the cable entries and tighten the screws.

20 Reconnect the disconnected transmission cables.

21 Reconnect the disconnected cables to the System Module front panel (if needed). If using optical cables, do not bend them to a radius smaller than the minimum radius of 75 mm (3 in). Make sure that there is no dust or other dirt on the optical connector. If necessary, clean the connector with a special optical cleaner.

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22 Check that the connectors are properly connected.

23 Push the connector seals firmly in place.

24 Switch on the DC mains power.

25 Restart and reconfigure the BTS.

3.4 Replacing Flexi Power Distribution and Fuses (FPFx) Submodule Purpose The following instructions show how to replace a faulty FPFA/FPFB submodule. Before you start Remove the System Module front cover, disconnect the necessary cables, and remove the external cable entries. WARNING! Risk of electric shock. Shut down the BTS before replacing the FPFx submodule. If the FPMA is in use, switch the FPAA and FPBA/FPBB to standby mode (the LED color will turn yellow). If the external rectifier or battery is in use, turn it off.

1

Pull the System Module core out of the casing. Figure 39

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2

Remove the cable tie from the fan carrier and disconnect the cable from the fan carrier connection sink. Figure 40

60

Removing the cable tie from the fan carrier

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3

Remove the cable tie from the DC power cable tie point. Figure 41

4

Removing the cable tie from DC power cable tie point

Disconnect the DC power cable. Figure 42

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Disconnecting DC power cable

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5

Loosen the screws that fix the FPFA/FPFB to the module core and remove the FPFA/FPFB. FPFA and FPFB v. 103 or older has four screws. FPFB v. 104 or later has three screws. Keep the screws as you will need them to reinstall the new FPFx submodule.

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Figure 43

Loosening FPFx screws from System Module

Figure 44

Removing FPFx submodule

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6

Make sure that the FCM-FPF connection card is in place on the System Module. Figure 45

7

Replacing modules

Location of the FCM-FPF connection card

Install the FPFA/FPFB and fix the screws. Tighten to 4.3 Nm (3.17 ft lbs). FPFA and FPFB v. 103 or older has four screws. FPFB v. 104 or later has three screws. Figure 46

8

Fixing FPFx submodule to System Module

Connect the DC power cable to the FPFx. Tighten the screws to 5.0 Nm (3.69 ft lbs). For more detailed instructions, see Connecting external power feed in the Cabling Flexi Multiradio BTS [technology] document.

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Figure 47

9

Fix the DC power cable to the cable tie point with a cable tie. Figure 48

64

Connecting DC power cable

Fixing DC power cable

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10 Connect the cable to the fan carrier and fix the cable to the fan carrier with a cable tie. Figure 49

Connecting and fixing the cable to fan carrier

11 Insert the module core into the casing. Figure 50

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12 Connect the necessary cables, and install the System Module casing front cover. Figure 51

Installing the System Module casing front cover

3.5 Replacing Flexi Power Module (FPMA) Purpose To replace the FPMA casing, in case it has been damaged, follow the steps below. NOTICE: Switch off the BTS before performing this procedure. Take a commissioning file backup before replacing the module. Before you start DANGER! Danger of lethal voltages. Switch off the AC power breaker before connecting the AC cable. DANGER! Danger of lethal voltages. If battery modules (FPBA/FPBB) are used, make sure to turn them off before switching off the AC power.

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1

Connect the ESD wrist strap to your wrist and then to the plinth.

2

Remove the FPMA module front and back covers. Check whether the maintenance straps inside the module covers are damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

3

Switch off the power of the FPBA/FPBB and FPAA. Switch off the power of the FPBA/FPBB and FPAA with the ON/OFF switch. The LED indicator for the FPBA/FPBB unit has to be stable yellow.

4

Make sure the base station has no voltage by switching off the AC feed to the FPMA with the site switch. Check by measurement that there is no voltage at the terminals.

5

Open the AC power connection plate.

6

Disconnect the AC and DC cables of the FPAA. For detailed instructions, see section Replacing AC/DC sub-module (FPAA).

7

Disconnect the DC and alarm cables (if used) of the FPBA/FPBB. For detailed instructions, see section Replacing battery sub-modules (FPBA/FPBB).

8

Remove the FPAA and FPBA/FPBB from the FPMA.

9

Change the casing of the FPMA.

10 Install the FPAA and FPBA/FPBB to their original location. For detailed instructions, see sections Replacing AC/DC sub-module (FPAA) and Replacing battery sub-modules (FPBA/FPBB).

11 Reconnect the AC and alarm cables. a) Reconnect the FPAA cables. For detailed instructions, see section Replacing AC/DC sub-module (FPAA). b) Reconnect the FPBA/FPBB cables. For detailed instructions, see section Replacing battery sub-modules (FPBA/FPBB).

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12 Check that the connectors are properly connected.

13 Push the connector seals firmly in place.

14 Switch the AC power feed ON. The LED indicator for FPAA should turn yellow.

15 Turn on the FPAAs by pushing the power switch for one second.

16 Switch on the power of the FPBA/FPBB. Switch on the power of the FPBA/FPBB with the ON/OFF switch. The LED indicator for FPBA/FPBB should turn green, or blink in green. This is because initially the battery checks its charge and might even load for a while. It should be stable green once the load is completed.

17 Check that all modules start up properly.

18 Install the FPMA module front and back covers. Expected outcome The base station is ready to be commissioned.

3.6 Replacing FPMA power sub-modules 3.6.1 Replacing AC/DC sub-module (FPAA) Before you start It is recommended that power is switched off from the AC mains breaker. However, there can still be hazardous voltage in case batteries are used.

1

Remove the FPMA module front cover. Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

68

2

Switch off the power from the FPAA stand-by switch.

3

Remove the ingress protection plate.

4

Pull out the AC terminal plate.

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5

Disconnect the AC cable of the faulty FPAA.

6

Disconnect the alarm cable, if used.

7

Disconnect the DC cable.

8

Remove the FPAA screws (2 pcs).

9

Replace the FPAA with a new one. If you are installing FPMA in a third-party cabinet, it may be necessary to change the FPAA cooling fan airflow direction from back-to-front to front-to-back. This is possible with FPAA 470140A.204 version. See the steps below on how to do this on Efore and AcBel FPAAs. a) Remove the fan fixing screws. b) Flip the fan so that the fan label is visible. c) Fix the fan fixing screws back. Figure 52

Changing the FPAA fan airflow direction (AcBel)

2

3 1

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Figure 53

Changing the FPAA fan airflow direction (Efore)

1

2

1

1

1

3

10 Fix the screws.

11 Re-connect the cables. a) Re-connect the AC cables. b) Re-connect the alarm cables. c) Reconnect the DC cables. Make sure that the LED is yellow at this point.

12 Re-install the ingress protection plate.

13 Turn on the unit by pushing the power switch for one second. Make sure that the LED is stable green.

14 Install the FPMA module front cover.

3.6.2 Replacing battery sub-module (FPBA/FPBB) Before you start The FPBA/FPBB is a Lithium-Ion battery and its transportation is classified as dangerous. Therefore only an approved brand-new UN class 9 package can be used for transportation of the FPBA/FPBB unit. An opened package cannot be used. An approved package can be ordered from the Nokia Service Center. If there are any visible damages in the FPBA/FPBB unit, it cannot be transported at all. In that case, contact the Nokia Service Center for assistance. Make sure you replace the right type of Li-Ion battery. Do not install the FPBA and FPBB in parallel.

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WARNING! Risk of battery explosion. A too-rapid discharge of a lithium battery can result in overheating of the battery, rupture, and even explosion. Transport the Flexi Power Battery sub-module (FPBA/FPBB) unit according to the International Dangerous Goods Regulations.

1

Remove the FPMA module front cover. Check whether the maintenance strap inside the cover is damaged. Make sure there are no visual defects. Replace worn or damaged maintenance straps.

2

Switch off the power from the FPBA/FPBB stand-by switch.

3

Disconnect the DC cable from the faulty FPBA/FPBB.

4

Disconnect the alarm cable.

5

Remove the FPBA/FPBB screws (2 pcs).

6

Replace the FPBA/FPBB with a new one.

7

Fix the screws.

8

Re-connect the cables. a) Re-connect the alarm cable. Connect the alarm cable between FPAA and FPBA/FPBB. b) Re-connect the DC cable. Make sure that the LED is yellow at this point.

9

Check that the connectors are properly connected.

10 Push the connector seals firmly in place.

11 Turn on the unit by pushing the power switch for one second. The LED is blinking slowly green as the FPBA/FPBB goes into the charging mode. Once the FPBA/FPBB is fully charged (approx. 8 hours), the LED is stable green.

12 Install the FPMA module front cover.

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Replacing Remote Radio Head (RRH)

Replacing Flexi Multiradio Base Station Units

4 Replacing Remote Radio Head (RRH) Purpose If a module fails and you have carried out troubleshooting, replace the module with a new one. For troubleshooting instructions and alarm information, see Troubleshooting Flexi Multiradio BTS LTE. Never replace a module because of the alarms unless you have followed the troubleshooting instructions given in the Troubleshooting Flexi Multiradio BTS LTE document. The module needs to be removed also when you are replacing a FPAC/FPAD/FPAE mounted on the back of the module. Replace the module without causing interference to the surrounding network. CAUTION! Risk of personal injury. The module is heavy. Take care when lifting the module. Before you start Make sure you have the configuration-specific instructions available for checking how to re-connect the cables. If the faulty RRH has an FPAC/FPAD/FPAE, it is recommended that you remove the FPAC/FPAD/FPAE after the faulty RRH has been lowered to the ground. Install the FPAC/FPAD/FPAE on the new RRH on the ground before lifting it.

1

Notify the appropriate personnel and block the TRXs.

2

Connect the ESD wrist strap (2x40 W RRH).

3

Wait for the module status LED to change to a blinking green state, which indicates traffic has been blocked.

4

Disable power to the module. If FPAC/FPAD/FPAE is used, disconnect the AC power input cable from the AC power source.

5

Secure the lifting hook (or other mechanism) in the lifting point so that the RRH weight will be supported when the fixing bolts are removed. If you are replacing a FHDB/FHEB/FHEF/FHEG and leaving the mounting brackets installed, then secure the lifting hook on the module handle. Always follow local safety regulations for lifting modules.

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Figure 54

6

Replacing Remote Radio Head (RRH)

Securing RRH with lifting hook

Disconnect the cables on the module and cable tie point plate. Keep the optical transceiver(s) for the new module Make sure the cables are secured near the RRH location before removing them from the cable tie point plate. This will prevent the cables from falling and make access easier after replacement. If you are replacing a FHDB/FHEB/FHEF/FHEG and leaving the mounting brackets installed, then do not remove the cables from the cable tie point plate.

If you are replacing an FHDB/FHEB/FHEF/FHEG, re-install the DC protective cover. It is required for shipping.

For Release 4 RRH variants, the lower bracket is not removed when replacing the module. Do not remove the cables from the cable tie point plate.

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Figure 55

7

Replacing Flexi Multiradio Base Station Units

Disconnecting the cables on the module

Loosen the four M8 fixing bolts. Keep the bolts for later use. If you are replacing a FHDB/FHEB/FHEF/FHEG and leaving the mounting brackets installed, then remove the module from the mounting brackets by loosening the M5 screws on the sides. If you are replacing a Release 4 RRH variant, leave the lower mounting bracket installed. Replacement units are shipped with the upper bracket installed only.

8

Lower the faulty RRH to the ground. Lift the RRH to the pole using the lifting point. CAUTION! Risk of personal injury. The RRH is heavy. Take care when lifting the RRH.

9

Lift the new RRH on the pole.

10 Tighten the fixing bolts to 20 Nm (14.75 ft-lb).

11 Release the cable tie point plate by undoing the screw if applicable. Applicable for 2x40 RRH configuration only.

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Replacing Remote Radio Head (RRH)

12 Fix the two screws on the cable tie point plate if applicable. Applicable for 2x40 RRH configuration only.

13 Fix the DC cable clamp on the cable tie point plate if applicable.

14 Connect the cables.

15 Enable power to the module.

16 Unblock the TRXs or the sector with Flexi BTS Site Manager.

17 Verify that the replaced module is operational. See Troubleshooting Flexi Multiradio BTS LTE.

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Replacing RRH solar shield or plastic cover

Replacing Flexi Multiradio Base Station Units

5 Replacing RRH solar shield or plastic cover Purpose The solar shield or plastic cover is required at all times during RRH operation. If the solar shield or plastic cover is damaged, it can be replaced. CAUTION! Risk of personal injury. Plastic cover is always required on Release 4 RRH during indoor and outdoor operation for IEC/UL 60950-1 safety compliance. Figure 56

RRH solar shield

RRH solar shield

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Replacing RRH solar shield or plastic cover

Take care to ensure that you do not drop the RRH solar shield or plastic cover after the screws are removed.

1

Remove the four M6 (Torx size T30) screws (for 2x40 W RRH) or M5 screws (for 2x60 W RRH) or four M8 screws (for Release 4 RRH). Keep the screws for later use.

2

Remove the damaged solar shield or plastic cover.

3

Install the new solar shield or plastic cover.

4

Tighten the four M6 screws (for 2x40 W RRH) or M5 screws (for 2x60 W RRH) or four M8 screws (for Release 4 RRH). Tighten the screws as follows:

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Replacing Flexi System External Alarm Module (FSEB)

Replacing Flexi Multiradio Base Station Units

6 Replacing Flexi System External Alarm Module (FSEB) Purpose If a module fails and you have carried out troubleshooting, replace the module with a new one. When replacing the Flexi System External Alarm Module (FSEB), some alarms might be seen (depending on user-defined settings). The alarms are to be canceled once you have replaced the module.

78

1

Connect the ESD wrist strap.

2

Disconnect the cables on the module.

3

Loosen the screws on the module.

4

Pull out the module.

5

Install the new module.

6

Check that jumper X1103 is properly set.

7

Connect the cables.

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Replacing Flexi System External OVP FSES with FSEP

7 Replacing Flexi System External OVP FSES with FSEP These instructions show how to replace a Flexi System External OVP (FSES) 472285A with Flexi System External OVP (FSEP) 473246A.

1

Disconnect FSES cabling following the steps below: Figure 57

Disconnecting FSES cabling

d

c

a

b

a) Turn off DC input power and cut off the FSES DC input cable by the cable gland. The cable is reused for the FSEP installation. b) Disconnect the FSES grounding cable. Alternatively, you can disconnect the grounding cable from the plinth. Note that the FSEP has a factory-installed grounding cable. c) Disconnect the FSES alarm cable. The cable is reused for the FSEP installation. d) Cut the FSES DC output cable. The cable is reused for the FSEP installation.

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2

Remove the faulty FSES enclosure.

3

Install the new FSEP enclosure. Figure 58

4

Replacing Flexi Multiradio Base Station Units

Installing FSEP enclosure

Connect the factory-installed grounding cable (994815) to the plinth. Tighten to 2.0 - 2.5 Nm (1.5 - 1.8 ft-lb).

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Connecting FSEP grounding cable to plinth

Radio Mod

Figure 59

Replacing Flexi System External OVP FSES with FSEP

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5

Remove the IP boot from the 3-pole DC interface. Figure 60

6

Replacing Flexi Multiradio Base Station Units

Removing 3-pole DC IP boot

Take the 3-pole DC cable that was connected to FSES and do the following: a) If necessary, strip the DC cable about 10 cm (4 in) and wrap tape around GND mesh and cable sheath neck. Figure 61

Wrapping tape around shielded DC cable

b) Wrap extra tape around the exposed wires to avoid breaking the IP boot.

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Figure 62

Replacing Flexi System External OVP FSES with FSEP

Wrapping extra tape around DC cable

c) Insert the taped end of the DC feeder cable into the IP boot. Figure 63

Inserting DC power cable to IP boot

When using a thick cable, the narrow end of the IP boot can be removed using scissors. Use a single cut to get a clean cut surface. See Figure 64: Removing narrow end of IP boot for details. The IP boot takes a single cable sheath with a maximum size of 35 mm2 (2 AWG) to the IP boot. For supported cable diameters, see Figure 64: Removing narrow end of IP boot. NOTICE: The IP boot edge must be smooth. No crack in the edge is allowed, as it breaks the IP protection.

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Figure 64

Replacing Flexi Multiradio Base Station Units

Removing narrow end of IP boot

Cable diameter 20.1 - 25.0 mm cut with scissors in one go Cable diameter 15.1 - 20.0 mm cut with scissors in one go Cable diameter 10.1 - 15.0 mm cut with scissors in one go Cable diameter 6.0 - 10.0 mm (no cutting need)

d) Remove the extra tape from the DC cable. Keep the tape around the GND mesh and cable sheath neck to protect the IP boot from sharp edges.

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Figure 65

Replacing Flexi System External OVP FSES with FSEP

Properly secured shielded DC cable (left) and non-shielded DC cable (right)

For DC feeder cable details, see Feederless site and Distributed site solution requirements in the Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Installation Site Requirements document. 7

Connect the wires to the screw terminal. Tighten to 3.0 Nm (2.21 ft-lb). Figure 66

+

Connecting DC feeder cable wires

GND

-

Pay attention to the markings (V48N (-), V48RTN (+) and GND) on the FSEP lid to ensure correct polarity. If you have a shielded DC cable, connect the shielding to the terminal marked with GND. Note that the FSEP grounding cable has to be connected to the plinth.

8

Fix the IP boot in place and fix the screw. Tighten to max. 2.0 Nm (1.5 ft-lb). Bend the IP boot to the side to make it easier to fix the screw.

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Figure 67

86

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Fixing IP boot screw

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Replacing Flexi System External OVP FSES with FSEP

On sites where birds or rodents are a concern, it is recommended that exposed cables and DC terminal seals are protected with conduit. Use any suitable standard conduit for that purpose. Make sure that the conduit is securely locked in position as close to the IP seals as possible. If you use optional Flexi Side Covers (FMHA/FMTA), also protect any cabling coming out the side cover kit with conduit. The below figure is an example and shows conduit connected to the FSEP EAC interface. Figure 68

9

Example of conduit usage

Depending on your cable routing, fix the DC power cable to the cable entry with a cable tie. To ensure the FSEP DC feeder cable proper strain relief, also fix the DC feeder cable firmly to the surrounding structure of the Flexi module, as close as possible to the input connection.

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Figure 69

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Fixing DC feeder cable to cable entry

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10 Connect the 2-pole DC interface following the steps below: Figure 70

Connecting 2-pole DC interface

a) Remove the IP boot from the 2-pole DC interface. b) Strip the DC power cable (that was cut in step 1) about 7 cm (2.76 in) and wrap tape around the exposed wires to avoid breaking the IP boot. c) Remove the narrow end of the IP boot using scissors. Use a single cut so that you get a clean cut surface. d) Insert the taped end of the DC cable into the IP boot and remove the tape from the DC cable. e) Connect the wires to the screw terminal and tighten to 3.0 Nm (2.21 ft-lb). Pay attention to the polarity markings on the DC terminal. f) Fix the IP boot in place and fix the screw. Tighten to max. 2.0 Nm (1.5 ft-lb). On sites where birds or rodents are a concern, it is recommended that exposed cables and DC terminal seals are protected with conduit. Use any suitable standard conduit for that purpose. Make sure that the conduit is securely locked in position as close to the IP seals as possible. If you use optional Flexi Side Covers (FMHA/FMTA), also protect any cabling coming out the side cover kit with conduit.

11 Connect the other end of the DC cable as required by your configuration:

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• • •

Replacing Flexi Multiradio Base Station Units

FPFD PDU DC input port (limited to 80A current loads) System Module (FSMF) front panel DC input port (optional FPFD PDU not installed) RF Module front panel or RRH: DC input port.

Make sure that the IP boot is installed properly on the System Module or RF Module front panel. 12 If applicable, connect the alarm cable (that was earlier connected to FSES) to FSEP following the steps below: FSES alarm output is Normally Open type while FSEP alarm output is Normally Closed. After replacing a FSES with a FSEP, the alarms need to be reconfigured using the BTS Site Manager. Figure 71

Connecting FSEP alarm cable

a) Remove the IP seal from the FSEP EAC interface. b) Wrap tape around the exposed alarm cable wires to protect the IP boot. c) Insert the alarm cable to the IP boot included in the FSEP accessory bag and remove the tape. d) Pull out the pluggable terminal block. e) Connect the wires to the screw terminals. Tighten to 0.25 Nm (0.18 ft-lb). Make sure that the polarity is correct in order for the external alarms to work. f) Push the pluggable terminal block back in place. g) Fix the IP boot in place.

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On sites where birds or rodents are a concern, it is recommended that exposed cables and DC terminal seals are protected with conduit. Use any suitable standard conduit for that purpose. Make sure that the conduit is securely locked in position as close to the IP seals as possible. If you use optional Flexi Side Covers (FMHA/FMTA), also protect any cabling coming out the side cover kit with conduit. h) Connect the other end of the alarm cable either to the EAC port on the System Module front panel or to Flexi System External Alarm (FSEB). For RF Module and RRH external alarm interface connections, use pre-defined EAC cables. See chapter EAC cables in Flexi Multiradio Base Station and Flexi Multiradio 10 Base Station Optional Items Description for a list of available cables. 13 Reconfigure the alarms using the BTS Site Manager. FSES alarm output is Normally Open type while FSEP alarm output is Normally Closed.

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HW replacement/upgrade

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8 HW replacement/upgrade License files are tied to certain target identifiers of network elements. Broken HW may have an impact on the license files depending on whether the unit stores the license files or the target identifier of the network element:

• • •

If a unit (for instance, RF Module) that does not store the license files and does not contain the target identifier of the network element is swapped, there is no impact on the licenses. If a unit that stores the license files is swapped, copies of the old license files must be redistributed to the network element. If a unit that contains the target identifier of the network element is swapped, new license files must be created and distributed to the network element. The old licenses are not needed anymore and can be released back to the pool by using the pool substitute process. License pools have to be always available so that new licenses files can be delivered to the NE immediately when HW has been replaced.

Pool substitute process Pool substitute process releases the license files that were tied to a broken Target Identifier back to the pool for further usage. See the following steps if System Module is broken. Changing a transmission submodule does not affect licensing. The pool substitute process includes the following steps: 1. A Pool substitute request file including a reason code is generated by using the NetActTM Network Licence Manager application. 2. Substitute request file is imported to the Nokia Licence Generator. 3. Pool Substitute Permission File is created with the Nokia Licence Generator. 4. Pool Substitute Permission File is imported to the NetActTM Cluster of the broken HW. 5. Licenses related to the broken HW are released. The same substitute processes are also applied in case of a typing error in target identifier information in NetActTM (that is, a wrong target for the license is selected). The broken HW and error cases are separated by reason codes in the NetActTM Network Licence Manager application as well as in the files that are generated in the NetActTM Regional Cluster and delivered to LG.

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Returning faulty units

9 Returning faulty units If a faulty module is returned, it needs to be properly packed to avoid transportation damages. A Nokia unit package must be used for the returnable unit if such is available. Labels on Nokia boxes provide guidance on packing and shipping the unit. Unit boxes with "ATTENTION!!!" warning labels must always be packed into additional shipping boxes or shipped in a container/pallet.

Figure 72

Two versions of "ATTENTION!!!" warning labels and their Chinese translations

Unit boxes with "DELIVERY BOX" labels can be shipped without any extra packaging or pallet. Figure 73

"Delivery box" label allows shipping without extra package

Extreme care must be taken when a Nokia unit is returned in packaging not supplied by Nokia. If provided, carry handles located at the front of the unit must be used to transport the unit. Under no circumstances is the unit to be set down with the fan assembly coming into contact with the ground. Do not place the unit on the ground with the weight of the unit being supported on the fan. If the unit needs to be placed on the ground without the Nokia supplied package, it needs to be carefully placed down on its level side using both hands.

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9.1 Packing in a spare unit package The best way to ship units for repair is to use the spare unit packaging. Pack the faulty unit into the spare unit packaging in the same way as the spare unit was originally packed. Check the labels whether the package requires extra packaging or a pallet for shipping. Figure 74

Use spare part packaging to return faulty units

9.2 Extra shipping package Unit boxes with "ATTENTION!!!" warnings labels must always be packed into additional shipping boxes or shipped in a container/pallet. A unit package is placed into a shipping box and cushioning is used to protect the unit package. Package cushioning must surround all sides of the unit package.

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Figure 75

Returning faulty units

Correct procedure for packing the shipping box

9.3 Loading into a container For larger or heavier shipments it is recommended to use containers for packing several units into one shipment to provide best possible protection. Support the goods to prevent unwanted movement inside the container. Use only one type of filling material for each container.

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Figure 76

Container for larger shipments

9.4 Loading onto a pallet Palletized loads are not recommended. It is recommended to use containers whenever possible. In case pallets are the only available option, place big and/or heavy boxes at the bottom of the load with small and/or lighter boxes on the top. Stacks need to stand straight to ensure stability. The recommended maximum height for a pallet shipment is 1.5 meters (4.92 ft).

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A shipment needs to be secured with a stretch film that binds the load and protects it against dirt and rain. Figure 77

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Torque values

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10 Torque values Nokia strongly recommends the following torque values for the various different bolts and screws (assuming that lubricant has been applied). Use these values unless stated otherwise. Table 2

Torque values for the BTS

Bolt/Screw Type

DIN

Size

Torque

TORX head screw cylinder head

7985 F1-60

M3

0.7 - 1.0 Nm

TORX head screw cylinder head

7985 F1-60

TORX head screw cylinder head

7985 F1-60

TORX head PT 5x10 mm

WN1452

5x10 mm

2.0 Nm (1.48 ft-lb)

TORX head screw cylinder head

7985 F1-60

M8

10.0 Nm

Hexagon head screw (cabinet fixing)

933-12-70

Allen screw

912-A2-70

(0.52 - 0.74 ft-lb) M4

1.2 - 1.6 Nm (0.89 - 1.18 ft-lb)

M5

2.0 - 2.5 Nm (1.48 - 1.84 ft-lb)

(7.38 ft-lb) M12

49.0 Nm (36.14 ft-lb)

M8

8.0 - 10.0 Nm (5.90 - 7.38 ft-lb)

Nut

934 A2

M5

3.7 Nm (2.73 ft-lb)

Nut (cabinet fixing)

934 A2

M12

49.0 Nm (36.14 ft-lb)

98

FPKA/FPKC screw

933

M8x20

20.0 Nm (14.75 ftlb)

Fan fixing screws, plastic

-NA-

M4

0.7 Nm

Fan fixing screws, metal

-NA-

(0.52 ft-lb) M4

1.2 Nm (0.89 ft-lb)

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Appendix LED indications

11 Appendix LED indications 11.1 System Module LED indications The System Module has seven tri-color LEDs on the front panel to indicate the operational status of the module and all fault conditions during operation. See Figure 78: System Module LED positions for the System Module LEDs. Figure 78

System Module LED positions

The FPFA has four and the FPFB five additional LEDs on its front panel. The LED indications of the System Module are listed and explained in Table 3: System Module LEDs (from left to right). It is recommended that you read the information on the LED indications carefully. A blinking red LED does not always require removing the module. Table 3

System Module LEDs (from left to right)

LED

Color

FSMC/FSMD/FSME only: FPFB status (one LED for internal and each external power output)

• • • •

Yellow: Stand-by, output disabled Green: Normal operation, output enabled

Fan status

• •

Red: Fan fault Green: Fan OK

System Module status

•

Red: Module self-test or reset (LED red for < 5 seconds) or major alarm or critical alarm Red, blinking: Minor alarm

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Red: Fault, output disabled Yellow, blinking: Remote controlled, output disabled

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Table 3

System Module LEDs (from left to right) (Cont.)

LED

Color

• • • •

Yellow: Stand-by or blocked Yellow, blinking: SW download or configuration ongoing, module non-operational Green: Module operational (the cell can be locked in the RNC) Green, blinking: Module is loading software or parameters or local maintenance access when modules are operational

• • •

Red: no connection Green: connection OK

• • •

Red: no connection Green: connection OK

• • •

Red: no connection Green: connection OK

System Extension Module 1 fiber connection status (OPTEXT1)

• • •

Red: no connection Green: connection OK

System Extension Module 2 fiber connection status (OPTEXT2)

• • •

Red: no connection Green: connection OK

RF Module 1 fiber connection status (OPT-RF1)

RF Module 2 fiber connection status (OPT-RF2)

RF Module 3 fiber connection status (OPT-RF3)

Yellow: not in use

Yellow: not in use

Yellow: not in use

Yellow: not in use

Yellow: not in use

You can inspect the state of all BTS or transmission-related alarms from the LED on the transmission sub-module. Note that the FTFA unit has two additional radio-specific LEDs on the front panel.

11.2 RF Module and Remote Radio Head (RRH) LED indications The Flexi Multiradio RF Module and Remote Radio Head (RRH) have two tricolor LEDs on the front panel to indicate the operational status of the module and all fault conditions during operation. A blinking red LED does not always require removing the module. The Flexi Multiradio RF Module LEDs are:

•

100

Module Status - indicates the status of the RF Module core functional block

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Fan/TX Status - indicates the fan and TX status

The Remote Radio Head (RRH) LEDs are:

• •

Module Status - indicates the status of the RRH functional block TX Status - indicates the TX status of the RRH A red, blinking LED does not necessarily mean hardware failure. Always perform troubleshooting before replacing the module.

You can identify faulty Flexi Multiradio BTS modules with the respective Flexi BTS Site Manager. In the Alarms window of the respective Flexi BTS Site Manager, you can see the object that the alarm refers to in the Object column. It is not always the alarming module that is faulty, it may also be the connected cable or the interworking module that causes the alarm. At the site, you can easily locate the alarming module by checking the color of the LED. See the LED status indications tables for information of LED status. Table 4

RF Module unit status LED indications

LED color

Description

Alarm

Red, stable

Critical alarm affecting the entire RF Module or all antenna carriers

Fault

Red, blinking

Operation degraded

Major/critical alarm

• • •

Yellow, stable

• • •

Yellow, blinking

• •

Green, stable

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Major alarm affecting the entire RF Module Major alarm affecting the entire RF Module Major/Critical alarm affecting a module subcomponent or antenna carrier Until software download begins The carriers are blocked from BTS There is no connection to any System Module

No alarm

Software download in progress Configuration in progress: RF resources are being setup, but not yet activated

No alarm

Software configuration is complete or supervisory: RF resources activated and transmission is possible Working normally, no alarm on the RF Module

No alarm

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Table 4

RF Module unit status LED indications (Cont.)

LED color

Description

Alarm

Green, blinking

Software downloading and updating

No alarm

Stable Red for less than 5 seconds and changes to Stable Yellow

Switched ON, but the next conditions are not reached yet

No alarm

Stable Red for less than 5 seconds

The module is in the process of resetting

No alarm

Periodic Red and Green

Antenna line device faulty/degraded

No alarm

Blinking Colors (Red, Yellow, and Green), each color stable for 0.5 second

Module highlighting (Flexi BTS SM functionality that can help identifying faulty module)

No alarm

RF Module fan/TX status LED: At least one fan is faulty or Red degraded RF Module fan/TX status LED: All fans are working Green RF Module fan/TX status LED: RF transmission is ON Color set according to fan status, stable RF Module fan/TX status LED: RF transmission is OFF Color set according to fan status, blinking

Table 5

RRH unit status LED indications

LED color

Description

Alarm

Red, stable

Critical alarm affecting the entire RF Module or all antenna carriers

Fault

Red, blinking

Operation degraded

Major/critical alarm

• • •

Yellow, stable

• • •

Yellow, blinking

102

•

Major alarm affecting the entire RF Module Critical alarm affecting fans Major/Critical alarm affecting a module subcomponent or antenna carrier Until software download begins The carriers are blocked from BTS There is no connection to any System Module

No alarm

Software download in progress

No alarm

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Table 5

Appendix LED indications

RRH unit status LED indications (Cont.)

LED color

Description

Green, stable

•

Configuration in progress: RF resources are being setup, but not yet activated

•

Software configuration is complete or supervisory: RF resources activated and transmission is possible Working normally, no alarm on the RF Module

•

Alarm

No alarm

Green, blinking

Software downloading and updating

No alarm

Stable Red for less than 5 seconds and changes to Stable Yellow

Switched ON, but the next conditions are not reached yet

No alarm

Stable Red for less than 5 seconds

The module is in the process of resetting

No alarm

Periodic Red and Green

Antenna line device faulty/degraded

No alarm

Blinking Colors (Red, Yellow, and Green), each color stable for 0.5 second

Module highlighting (Flexi BTS SM functionality that can help identifying a faulty module)

No alarm

The RRHs do not have fans, therefore, there is no Fan LED. Table 6

2x40 W RRH TX Status LED

Color

Indication

Yellow, Stable

O&M control missing

Green, Stable

Transmission ON

Green, Blinking

Transmission OFF

2x60 W RRH does not have a TX status LED and the BTS Manager reports its status by indicating LED state only.

11.3 Flexi Power sub-module (FPAA and FPBA/FPBB) LED indications Flexi Power Module AC/DC sub-module (FPAA) LED indications When pressing the manual stand-by/ON switch, the unit is turned into stand-by mode and DC power generation is disabled. Issue: 04A

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The FPAA LED indications are explained in Flexi Power Module AC/DC sub-module (FPAA) LED indications. Read the information on LED indications thoroughly. A blinking red LED does not always require removing the module. Table 7

Flexi Power Module AC/DC sub-module (FPAA) LED indications

LED color

Explanation

Alarm

Stable yellow

Stand-by (AC connected)

No

Stable green

Normal operation

No

Stable red

Alarm or fault

ALO1 or ALO2

Blinking red

Unit operating with abnormal input voltage

ALO1

See Flexi Power Module AC/DC sub-module (FPAA) LED for the location of the FPAA LED. Figure 79

Flexi Power Module AC/DC sub-module (FPAA) LED

LED

Flexi Power Battery sub-module (FPBA/FPBB) LED indications When pressing the manual stand-by/ON switch, the unit is turned into stand-by mode and discharging is disabled. Forced discharge mode is entered by pressing the stand-by switch for five seconds. In this state, the LED blinks fast between green and yellow. Pressing the switch again returns the unit to the normal state and the LED becomes green. The FPBA/FPBB LED indications are explained in Flexi Power Battery sub-module (FPBB) LED indications.

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Table 8

Appendix LED indications

Flexi Power Battery sub-module (FPBA/FPBB) LED indications

LED color

Explanation

Alarm

Stable yellow

Stand-by (DC connected from FPAA)

No

Stable green

Normal operation, battery OK No

Slowly blinking green

Charging

No

Fast blinking green

Discharging

No

Stable red

Major alarm or fault

ALO2

Fast blinking red

Minor alarm

No

Blinking fast between green and yellow

Forced discharge mode

No

The LED's slow blinking frequency is 1 Hz (1 sec) and fast blinking frequency 2 Hz (0.5 sec). See Flexi Power Battery sub-module (FPBB) LED for the location of the FPBA/FPBB LED. Figure 80

Flexi Power Battery sub-module (FPBA/FPBB) LED

LED

11.4 Flexi Power DC/DC Module (FPDA) LED indications Flexi Power DC/DC Module (FPDA) has a tri-color LED on the front panel to indicate the operational status of the module and all fault conditions during operation. Read the information on LED indications thoroughly. A blinking red LED does not always require removing the module. The LED indications of the FPDA are listed and explained in Table 9: Flexi Power DC/DC Module (FPDA) LED indications.

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Table 9

Flexi Power DC/DC Module (FPDA) LED indications

Color

Explanation

Green

Normal operation

Red

Alarm or fault

Yellow

Stand-by

Red, blinking

Abnormal input voltage