BTS36 Series Hardware Description Manual

Chapter 1 Cabinets 1-1..........................................................................................1.1 BTS3606 Cabinet 1-1...................................................................................

1.1.1 Overview of BTS3606 Cabinet 1-1.......................................................1.1.2 Cabinet Structure 1-1...........................................................................1.1.3 Technical Specifications 1-4................................................................

1.2 cBTS3612 Cabinet 1-5.................................................................................1.2.1 Overview of cBTS3612 Cabinet 1-5.....................................................1.2.2 Cabinet Structure 1-5...........................................................................1.2.3 Technical Specifications 1-8................................................................

1.3 BTS3612A Cabinet 1-9.................................................................................1.3.1 Overview of BTS3612A Cabinet 1-9....................................................1.3.2 Cabinet Structure 1-9...........................................................................1.3.3 Technical Specifications 1-12................................................................

Chapter 2 Subracks 2-1.........................................................................................2.1 BTS3606 Subrack 2-1..................................................................................

2.1.1 CDDU Subrack 2-1..............................................................................2.1.2 Combined Subrack 2-2........................................................................2.1.3 Power Supply Subrack 2-7...................................................................

2.2 cBTS3612 Subrack 2-9................................................................................2.2.1 Baseband Subrack 2-9.........................................................................2.2.2 Fan Subrack 2-12...................................................................................2.2.3 Power Supply Subrack 2-13...................................................................2.2.4 Carrier Subrack 2-15..............................................................................2.2.5 RLDU Subrack 2-17...............................................................................2.2.6 RF front-end Module Subrack 2-19........................................................

2.3 BTS3612A Subrack 2-21................................................................................2.3.1 Baseband Subrack 2-21.........................................................................2.3.2 Combined Subrack 2-23........................................................................2.3.3 Power supply subrack 2-26....................................................................2.3.4 Transmission Equipment Subrack 2-28.................................................2.3.5 Battery Subrack 2-29.............................................................................

Chapter 3 Parts 3-1................................................................................................3.1 Overview of Parts 3-1...................................................................................3.2 BCIM 3-2......................................................................................................

3.2.1 BCIM Panel 3-2....................................................................................3.2.2 BCIM Indicators 3-3.............................................................................3.2.3 DIP Switches and Jumpers of BCIM 3-3..............................................

3.3 BCKM 3-7.....................................................................................................3.3.1 BCKM Panel 3-7..................................................................................

3.3.2 BCKM Indicators 3-7............................................................................3.3.3 BCKM Interfaces 3-8............................................................................

3.4 BCPM/CCPM 3-8.........................................................................................3.4.1 BCPM/CCPM Panel 3-9.......................................................................3.4.2 BCPM/CCPM Indicators 3-10................................................................3.4.3 BCPM/CCPM Interfaces 3-11................................................................

3.5 BRDM 3-11.....................................................................................................3.5.1 BRDM Panel 3-11..................................................................................3.5.2 BRDM Indicators 3-12............................................................................3.5.3 BRDM Interfaces 3-13............................................................................

3.6 HPCM 3-13.....................................................................................................3.6.1 HPCM Panel 3-13..................................................................................3.6.2 HPCM Indicators 3-14............................................................................3.6.3 HPCM Interfaces 3-15............................................................................

3.7 BTRM/CTRM 3-15..........................................................................................3.7.1 BTRM/CTRM Panel 3-15.......................................................................3.7.2 BTRM/CTRM Indicators 3-17.................................................................3.7.3 BTRM/CTRM Interfaces 3-18.................................................................

3.8 BRFM 3-19.....................................................................................................3.8.1 BRFM Panel 3-19...................................................................................3.8.2 BRFM Indicators 3-19............................................................................3.8.3 BRFM Interfaces 3-20............................................................................

3.9 CDU/DFU/DDU 3-20......................................................................................3.9.1 CDU/DDU/DFU Panel 3-20....................................................................3.9.2 CDU/DDU/ DFU Indicators 3-21............................................................3.9.3 CDU/DDU/DFU Interfaces 3-21.............................................................

3.10 CDDU 3-23...................................................................................................3.10.1 CDDU Panel 3-23................................................................................3.10.2 CDDU Indicators 3-24..........................................................................3.10.3 CDDU Interfaces 3-24..........................................................................

3.11 RLDU 3-25....................................................................................................3.11.1 RLDU Panel 3-25.................................................................................3.11.2 RLDU Indicators 3-25...........................................................................3.11.3 RLDU Interfaces 3-26..........................................................................

3.12 PSUAC/DC 3-26...........................................................................................3.12.1 PSU AC/DC Panel 3-26.......................................................................3.12.2 PSU AC/DC Indicators 3-27.................................................................3.12.3 PSU AC/DC Interfaces 3-27.................................................................

3.13 PSUDC/DC 3-27...........................................................................................3.13.1 PSU DC/DC Panel 3-27.......................................................................3.13.2 PSU DC/DC Indicators 3-28.................................................................

3.13.3 PSU DC/DC Interfaces 3-28................................................................3.14 PMU 3-28.....................................................................................................

3.14.1 PMU Panel 3-29...................................................................................3.14.2 PMU Indicators 3-29............................................................................3.14.3 PMU Interfaces 3-29............................................................................

3.15 BESP 3-29....................................................................................................3.15.1 DIP Switches and Jumpers of BESP 3-30...........................................3.15.2 BESP Indicators 3-31...........................................................................3.15.3 BESP Interfaces 3-31...........................................................................

3.16 BPLI 3-31......................................................................................................3.16.1 BPLI Panel 3-31...................................................................................3.16.2 BPLI Indicators 3-32.............................................................................3.16.3 BPLI Interfaces 3-32............................................................................

Chapter 4 Cables 4-1.............................................................................................4.1 BTS3606 Cabinet Cables 4-1.......................................................................

4.1.1 External Power Cable 4-3....................................................................4.1.2 E1/T1 Trunk Cable 4-3.........................................................................4.1.3 Optical Fiber 4-4...................................................................................4.1.4 Protection Grounding Cable 4-5...........................................................4.1.5 Satellite Clock RF Signal Cable 4-6.....................................................4.1.6 EAC Data Cable 4-6.............................................................................4.1.7 Baseband Subrack Power Cable 4-7...................................................4.1.8 Internal Power Cable from the +27 V Switch Box to RFModules 4-8..................................................................................................4.1.9 Baseband Subrack Trunk Cable 4-9....................................................4.1.10 Lightning-Arrester Alarm Monitoring Cable 4-10..................................4.1.11 Alarm Cable from the Lightning Arrester to the Switch Box 4-10.........4.1.12 The 10 MHz Clock RF Signal Cable 4-11............................................4.1.13 Internal RF Signal Cable 4-12..............................................................

4.2 cBTS3612 Cabinet Cables 4-12.....................................................................4.2.1 External Power Cable 4-14....................................................................4.2.2 E1/T1 Trunk 4-14...................................................................................4.2.3 Optical Fiber 4-14...................................................................................4.2.4 Protection Grounding Cable 4-15...........................................................4.2.5 Satellite Clock RF Signal Cable 4-15.....................................................4.2.6 EAC Data Cable 4-15.............................................................................4.2.7 RLDU Alarm Cable 4-15........................................................................4.2.8 RLDU Power Cable 4-16........................................................................4.2.9 CDU/DDU/DFU RF Signal Cable 4-16...................................................4.2.10 Baseband Subrack Alarm Cable 4-17..................................................

4.2.11 Baseband Subrack Power Cable 4-18.................................................4.2.12 Internal Power Cable from the +27 V Switch Box to RFModule 4-19....................................................................................................4.2.13 Baseband Subrack Trunk Cable 4-19..................................................

4.3 BTS3612A Cabinet Cables 4-20....................................................................4.3.1 External Power Cable 4-22....................................................................4.3.2 E1/T1 Trunk 4-23...................................................................................4.3.3 Optical Fiber 4-23...................................................................................4.3.4 Protection Grounding Cable 4-23...........................................................4.3.5 Satellite Clock RF Cable 4-24................................................................4.3.6 RLDU Alarm Cable 4-25........................................................................4.3.7 RLDU Power Cable 4-25........................................................................4.3.8 CDU/DDU/DFU RF Signal Cable 4-25...................................................4.3.9 Baseband Subrack Alarm Cable 4-25....................................................4.3.10 Baseband Subrack Power Cable 4-26.................................................4.3.11 Internal Power Cable from the +27 V Switch Box to the RFModule 4-26....................................................................................................4.3.12 Baseband Subrack Trunk Cable 4-26..................................................4.3.13 Air-conditioner Alarm Cable 4-27.........................................................

Chapter 5 Auxiliary Equipment 5-1......................................................................5.1 BTS3612A Battery Cabinet 5-1....................................................................

5.1.1 Structure of the Battery Cabinet 5-1.....................................................5.1.2 Specifications of the Battery Cabinet 5-3.............................................5.1.3 Introduction to Battery 5-3....................................................................5.1.4 Battery Cable 5-3.................................................................................

5.2 Indoor Transmission Interface Box 5-4.........................................................5.2.1 Structure of the Indoor Transmission Interface Box 5-4.......................5.2.2 Specifications of the Indoor Transmission Interface Box 5-5...............5.2.3 Introduction to Components 5-6...........................................................

5.3 Outdoor Transmission Interface Box 5-6......................................................5.3.1 Structure of the Outdoor Transmission Interface Box 5-7....................5.3.2 Specifications of the Outdoor Transmission Interface Box 5-8............5.3.3 Introduction to Components 5-8...........................................................

5.4 Outdoor Power Supply Interface Box 5-10.....................................................5.4.1 Structure of the Outdoor Power Interface Box 5-10...............................5.4.2 Specifications of the Outdoor Power Interface Box 5-11.......................5.4.3 Introduction to Components 5-12...........................................................

Appendix A Abbreviations and Acronyms A-1....................................................

HUAWEI

Airbridge BTS36 Series CDMA Base Station Hardware Description Manual

V100R003

Airbridge BTS36 Series CDMA Base Station

Hardware Description Manual Manual Version T2-032533-20040527-C-1.30

Product Version V100R003

BOM 31250233

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters.

Huawei Technologies Co., Ltd.

Address: Administration Building, Huawei Technologies Co., Ltd.,

Bantian, Longgang District, Shenzhen, P. R. China

Postal Code: 518129

Website: http://www.huawei.com

Email: [email protected]

Copyright 2004 Huawei Technologies Co., Ltd.

All Rights Reserved

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks

, HUAWEI, C&C08, EAST8000, HONET, , ViewPoint, INtess, ETS, DMC,

TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, M900/M1800, TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA, iTELLIN, HUAWEI OptiX, C&C08 iNET, NETENGINE, OptiX, iSite, U-SYS, iMUSE, OpenEye, Lansway, SmartAX, infoX, TopEng are trademarks of Huawei Technologies Co., Ltd.

All other trademarks mentioned in this manual are the property of their respective holders.

Notice

The information in this manual is subject to change without notice. Every effort has been made in the preparation of this manual to ensure accuracy of the contents, but all statements, information, and recommendations in this manual do not constitute the warranty of any kind, express or implied.

About This Manual

Release Notes

This manual applies to Airbridge BTS36 series CDMA base station V100R003.

Organization

This manual introduces the hardware of Airbridge BTS36 series CDMA base station. The manual is divided into five chapters:

z Chapter 1 Cabinets Introduces the features, structures, and specifications of various BTS cabinets.

z Chapter 2 Subracks Introduces the features, configuration, specifications, interfaces, and backplanes of different subracks.

z Chapter 3 Parts Introduces the front panels, indicators, and interfaces of the parts.

z Chapter 4 Cables Introduces the features, structures, and positions of the cables.

z Chapter 5 Auxiliary Equipment Introduces the features, structures, specifications, and components of the auxiliary equipment.

z Appendix A Abbreviations and Acronyms

Intended Audience

The manual is intended for the following readers:

z Installation engineers and technicians z Operation and maintenance personnel

Conventions

The manual uses the following conventions:

I. General conventions

Convention Description

Arial Normal paragraphs are in Arial.

Arial Narrow Warnings, Cautions, Notes and Tips are in Arial Narrow.


Boldface Headings are in Boldface.

Courier New Terminal Display is in Courier New.

II. Command conventions


Boldface The keywords of a command line are in Boldface.

italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{ x | y | ... } Alternative items are grouped in braces and separated by vertical bars. One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by vertical bars. A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Optional alternative items are grouped in square brackets and separated by vertical bars. Many or none can be selected.

III. GUI conventions


< > Button names are inside angle brackets. For example, click the button.

[ ] Window names, menu items, data table and field names are inside square brackets. For example, pop up the [New User] window.

/ Multi-level menus are separated by forward slashes. For example, [File/Create/Folder].

IV. Keyboard operation

Format Description

Press the key with the key name inside angle brackets. For example, , , , or .

Press the keys concurrently. For example, means the three keys should be pressed concurrently.

Press the keys in turn. For example, means the two keys should be pressed in turn.

V. Mouse operation

Action Description

Click Press the left button or right button quickly (left button by default).

Double Click Press the left button twice continuously and quickly.

Drag Press and hold the left button and drag it to a certain position.

VI. Symbols

Eye-catching symbols are also used in the manual to highlight the points worthy of special attention during the operation. They are defined as follows:

Caution: Means reader be extremely careful during the operation.

Note: Means a complementary description.

Hardware Description Manual Airbridge BTS36 Series CDMA Base Station Table of Contents

i

Table of Contents

Chapter 1 Cabinets........................................................................................................................ 1-1 1.1 BTS3606 Cabinet............................................................................................................... 1-1

1.1.1 Overview of BTS3606 Cabinet................................................................................ 1-1 1.1.2 Cabinet Structure .................................................................................................... 1-1 1.1.3 Technical Specifications.......................................................................................... 1-4

1.2 cBTS3612 Cabinet............................................................................................................. 1-5 1.2.1 Overview of cBTS3612 Cabinet .............................................................................. 1-5 1.2.2 Cabinet Structure .................................................................................................... 1-5 1.2.3 Technical Specifications.......................................................................................... 1-8

1.3 BTS3612A Cabinet ............................................................................................................ 1-9 1.3.1 Overview of BTS3612A Cabinet ............................................................................. 1-9 1.3.2 Cabinet Structure .................................................................................................... 1-9 1.3.3 Technical Specifications........................................................................................ 1-12

Chapter 2 Subracks....................................................................................................................... 2-1 2.1 BTS3606 Subrack.............................................................................................................. 2-1

2.1.1 CDDU Subrack........................................................................................................ 2-1 2.1.2 Combined Subrack.................................................................................................. 2-2 2.1.3 Power Supply Subrack............................................................................................ 2-7

2.2 cBTS3612 Subrack............................................................................................................ 2-9 2.2.1 Baseband Subrack.................................................................................................. 2-9 2.2.2 Fan Subrack .......................................................................................................... 2-12 2.2.3 Power Supply Subrack.......................................................................................... 2-13 2.2.4 Carrier Subrack ..................................................................................................... 2-15 2.2.5 RLDU Subrack ...................................................................................................... 2-17 2.2.6 RF front-end Module Subrack ............................................................................... 2-19

2.3 BTS3612A Subrack ......................................................................................................... 2-21 2.3.1 Baseband Subrack................................................................................................ 2-21 2.3.2 Combined Subrack................................................................................................ 2-23 2.3.3 Power supply subrack ........................................................................................... 2-26 2.3.4 Transmission Equipment Subrack ........................................................................ 2-28 2.3.5 Battery Subrack..................................................................................................... 2-29

Chapter 3 Parts .............................................................................................................................. 3-1 3.1 Overview of Parts............................................................................................................... 3-1 3.2 BCIM .................................................................................................................................. 3-2

3.2.1 BCIM Panel ............................................................................................................. 3-2 3.2.2 BCIM Indicators....................................................................................................... 3-3 3.2.3 DIP Switches and Jumpers of BCIM....................................................................... 3-3


ii

3.3 BCKM................................................................................................................................. 3-7 3.3.1 BCKM Panel............................................................................................................ 3-7 3.3.2 BCKM Indicators ..................................................................................................... 3-7 3.3.3 BCKM Interfaces ..................................................................................................... 3-8

3.4 BCPM/CCPM..................................................................................................................... 3-8 3.4.1 BCPM/CCPM Panel ................................................................................................ 3-9 3.4.2 BCPM/CCPM Indicators........................................................................................ 3-10 3.4.3 BCPM/CCPM Interfaces ....................................................................................... 3-11

3.5 BRDM .............................................................................................................................. 3-11 3.5.1 BRDM Panel.......................................................................................................... 3-11 3.5.2 BRDM Indicators ................................................................................................... 3-12 3.5.3 BRDM Interfaces................................................................................................... 3-13

3.6 HPCM .............................................................................................................................. 3-13 3.6.1 HPCM Panel.......................................................................................................... 3-13 3.6.2 HPCM Indicators ................................................................................................... 3-14 3.6.3 HPCM Interfaces................................................................................................... 3-15

3.7 BTRM/CTRM ................................................................................................................... 3-15 3.7.1 BTRM/CTRM Panel .............................................................................................. 3-15 3.7.2 BTRM/CTRM Indicators ........................................................................................ 3-17 3.7.3 BTRM/CTRM Interfaces........................................................................................ 3-18

3.8 BRFM............................................................................................................................... 3-19 3.8.1 BRFM Panel .......................................................................................................... 3-19 3.8.2 BRFM Indicators.................................................................................................... 3-19 3.8.3 BRFM Interfaces ................................................................................................... 3-20

3.9 CDU/DFU/DDU................................................................................................................ 3-20 3.9.1 CDU/DDU/DFU Panel ........................................................................................... 3-20 3.9.2 CDU/DDU/DFU Indicators..................................................................................... 3-21 3.9.3 CDU/DDU/DFU Interfaces .................................................................................... 3-21

3.10 CDDU............................................................................................................................. 3-23 3.10.1 CDDU Panel........................................................................................................ 3-23 3.10.2 CDDU Indicators ................................................................................................. 3-24 3.10.3 CDDU Interfaces ................................................................................................. 3-24

3.11 RLDU ............................................................................................................................. 3-25 3.11.1 RLDU Panel ........................................................................................................ 3-25 3.11.2 RLDU Indicators.................................................................................................. 3-25 3.11.3 RLDU Interfaces.................................................................................................. 3-26

3.12 PSUAC/DC ........................................................................................................................ 3-26 3.12.1 PSUAC/DC Panel ................................................................................................... 3-26 3.12.2 PSUAC/DC Indicators ............................................................................................. 3-27 3.12.3 PSUAC/DC Interfaces............................................................................................. 3-27

3.13 PSUDC/DC ........................................................................................................................ 3-27 3.13.1 PSUDC/DC Panel ................................................................................................... 3-27


iii

3.13.2 PSUDC/DC Indicators............................................................................................. 3-28 3.13.3 PSUDC/DC Interfaces............................................................................................. 3-28

3.14 PMU ............................................................................................................................... 3-28 3.14.1 PMU Panel .......................................................................................................... 3-29 3.14.2 PMU Indicators.................................................................................................... 3-29 3.14.3 PMU Interfaces.................................................................................................... 3-29

3.15 BESP ............................................................................................................................. 3-29 3.15.1 DIP Switches and Jumpers of BESP .................................................................. 3-30 3.15.2 BESP Indicators .................................................................................................. 3-31 3.15.3 BESP Interfaces.................................................................................................. 3-31

3.16 BPLI ............................................................................................................................... 3-31 3.16.1 BPLI Panel .......................................................................................................... 3-31 3.16.2 BPLI Indicators.................................................................................................... 3-32 3.16.3 BPLI Interfaces.................................................................................................... 3-32

Chapter 4 Cables ........................................................................................................................... 4-1 4.1 BTS3606 Cabinet Cables .................................................................................................. 4-1

4.1.1 External Power Cable ............................................................................................. 4-3 4.1.2 E1/T1 Trunk Cable .................................................................................................. 4-3 4.1.3 Optical Fiber ............................................................................................................ 4-4 4.1.4 Protection Grounding Cable.................................................................................... 4-5 4.1.5 Satellite Clock RF Signal Cable .............................................................................. 4-6 4.1.6 EAC Data Cable...................................................................................................... 4-6 4.1.7 Baseband Subrack Power Cable ............................................................................ 4-7 4.1.8 Internal Power Cable from the +27 V Switch Box to RF Modules .......................... 4-8 4.1.9 Baseband Subrack Trunk Cable ............................................................................. 4-9 4.1.10 Lightning-Arrester Alarm Monitoring Cable......................................................... 4-10 4.1.11 Alarm Cable from the Lightning Arrester to the Switch Box................................ 4-10 4.1.12 The 10 MHz Clock RF Signal Cable ................................................................... 4-11 4.1.13 Internal RF Signal Cable ..................................................................................... 4-12

4.2 cBTS3612 Cabinet Cables .............................................................................................. 4-12 4.2.1 External Power Cable ........................................................................................... 4-14 4.2.2 E1/T1 Trunk........................................................................................................... 4-14 4.2.3 Optical Fiber .......................................................................................................... 4-14 4.2.4 Protection Grounding Cable.................................................................................. 4-15 4.2.5 Satellite Clock RF Signal Cable ............................................................................ 4-15 4.2.6 EAC Data Cable.................................................................................................... 4-15 4.2.7 RLDU Alarm Cable................................................................................................ 4-15 4.2.8 RLDU Power Cable............................................................................................... 4-16 4.2.9 CDU/DDU/DFU RF Signal Cable .......................................................................... 4-16 4.2.10 Baseband Subrack Alarm Cable......................................................................... 4-17 4.2.11 Baseband Subrack Power Cable ........................................................................ 4-18 4.2.12 Internal Power Cable from the +27 V Switch Box to RF Module ........................ 4-19


iv

4.2.13 Baseband Subrack Trunk Cable ......................................................................... 4-19 4.3 BTS3612A Cabinet Cables.............................................................................................. 4-20

4.3.1 External Power Cable ........................................................................................... 4-22 4.3.2 E1/T1 Trunk........................................................................................................... 4-23 4.3.3 Optical Fiber .......................................................................................................... 4-23 4.3.4 Protection Grounding Cable.................................................................................. 4-23 4.3.5 Satellite Clock RF Cable ....................................................................................... 4-24 4.3.6 RLDU Alarm Cable................................................................................................ 4-25 4.3.7 RLDU Power Cable............................................................................................... 4-25 4.3.8 CDU/DDU/DFU RF Signal Cable .......................................................................... 4-25 4.3.9 Baseband Subrack Alarm Cable ........................................................................... 4-25 4.3.10 Baseband Subrack Power Cable ........................................................................ 4-26 4.3.11 Internal Power Cable from the +27 V Switch Box to the RF Module .................. 4-26 4.3.12 Baseband Subrack Trunk Cable ......................................................................... 4-26 4.3.13 Air-conditioner Alarm Cable ................................................................................ 4-27

Chapter 5 Auxiliary Equipment .................................................................................................... 5-1 5.1 BTS3612A Battery Cabinet................................................................................................ 5-1

5.1.1 Structure of the Battery Cabinet.............................................................................. 5-1 5.1.2 Specifications of the Battery Cabinet ...................................................................... 5-3 5.1.3 Introduction to Battery ............................................................................................. 5-3 5.1.4 Battery Cable........................................................................................................... 5-3

5.2 Indoor Transmission Interface Box.................................................................................... 5-4 5.2.1 Structure of the Indoor Transmission Interface Box................................................ 5-4 5.2.2 Specifications of the Indoor Transmission Interface Box........................................ 5-5 5.2.3 Introduction to Components .................................................................................... 5-6

5.3 Outdoor Transmission Interface Box ................................................................................. 5-6 5.3.1 Structure of the Outdoor Transmission Interface Box............................................. 5-7 5.3.2 Specifications of the Outdoor Transmission Interface Box ..................................... 5-8 5.3.3 Introduction to Components .................................................................................... 5-8

5.4 Outdoor Power Supply Interface Box .............................................................................. 5-10 5.4.1 Structure of the Outdoor Power Interface Box ...................................................... 5-10 5.4.2 Specifications of the Outdoor Power Interface Box .............................................. 5-11 5.4.3 Introduction to Components .................................................................................. 5-12

Appendix A Abbreviations and Acronyms .................................................................................A-1

Hardware Description Manual Airbridge BTS36 Series CDMA Base Station Chapter 1 Cabinets

1-1

Chapter 1 Cabinets

This chapter introduces the outline, structure and Technical Specifications of BTS3606, cBTS3612, and BTS3612A cabinets.

1.1 BTS3606 Cabinet The BTS3606 cabinet is a compact indoor cabinet. It offers medium capacity and allows easy installation.

1.1.1 Overview of BTS3606 Cabinet

The cabinet is designed with full consideration of customers requirements on service, capacity, coverage, transmission, power supply, instillation, and maintenance. Its highly integrated design makes it best suited for small-medium sized cities and towns, and places with lower requirements on equipment rooms.

The BTS3606 cabinet is of modular architecture. The cabinet capacity can be expanded by adding modules. A BTS3606 cabinet supports a maximum configuration of six sector carriers. The cabinet is designed in compliance with IEC297 standards.

The BTS3606 cabinet has the following features:

z Excellent electrical conductivity and shielding effect z Good ventilation effect owing to its reasonable design of air ducts z Easy installation and maintenance z Nice appearance

1.1.2 Cabinet Structure

One BTS3606 cabinet consists of:

z Compact-BTS Dual Duplexer Unit (CDDU) subrack z Combined subrack z Power supply subrack z Switch box z Fan subrack z Cabling trough z Tool box

Figure 1-1 shows the structure of the BTS3606 cabinet.


1-2

Figure 1-1 BTS3606 cabinet

Figure 1-2 is the front view of the BTS3606 cabinet and Figure 1-3 is the components of the cabinet.


1-3

Figure 1-2 Front view of the BTS3606 cabinet


1-4

(1) Cabinet (2) CDDU subrack (3) Switch box (4) Fan subrack (5) Cabling trough (6) Power supply subrack (7) Combined subrack

Figure 1-3 Components of the BTS3606 cabinet

1.1.3 Technical Specifications

I. Dimensions

1400 mm 600 mm 650 mm (Height Width Depth)

II. Weight

Equal to or less than 250 kg. (fully equipped)

III. Power consumption

Table 1-1 Power consumption of BTS3606 cabinet

450 MHz 800 MHz 1900 MHz

S(1/1/1) 1400 W 1500 W 1900 W S(2/2/2) 2600 W 2800 W 3600 W

Band Power consumption Configuration


1-5

1.2 cBTS3612 Cabinet The cBTS3612 cabinet is an indoor cabinet. It offers large capacity and allows easy installation.

1.2.1 Overview of cBTS3612 Cabinet

The cBTS3612 is a typical "All in One" BTS designed to meet customers different demands for capacity, configuration, installation, power supply, transmission and service. It features large capacity, high integration and low power consumption. One cabinet can accommodate as many as 12 sector carriers. When fully equipped, one cBTS3612 supports 36 sector carriers, which are allocated to one basic cabinet and two extension cabinets. Different from the extension cabinet, the basic cabinet has an extra baseband subrack and a fan subrack. The baseband subrack of the basic cabinet connects with the RF subsystem of the extension cabinet through optical fibers.

The cBTS3612 cabinet has the following features:

z Excellent electrical conductivity and shielding effect z Good ventilation effect owing to its reasonable design of air ducts z Support of combined cabinet and flexible configuration of sector carriers. z Easy installation and maintenance z Nice appearance


One cBTS3612 cabinet consists of:

z Baseband subrack z Fan subrack z Power supply subrack z Carrier subrack z Receive LNA Distribution Unit (RLDU) subrack z RF front-end module subrack z Switch box

Figure 1-4 shows the structure of the cBTS3612 cabinet.


1-6

Figure 1-4 cBTS3612 cabinet

Figure 1-5 is the front view of the cBTS3612 cabinet and Figure 1-6 is the components of the cabinet.


1-7

Figure 1-5 Front view of cBTS3612 cabinet


1-8

(1) Cabinet (2) Power supply subrack (3) Carrier subrack (4) Baseband subrack (5) Fan subrack (6) RLDU subrack (7) RF front-end module subrack

Figure 1-6 Components of the cBTS3612 cabinet

The cBTS3612 supports the configuration of combined cabinet.

There are neither boards in the baseband subrack nor fans in the fan subrack of the extension cabinet. Except this, the rest configuration of the extension cabinet is the same as that of the basic cabinet.


I. Dimensions

1800 mm 800 mm 650 mm (Height Width Depth, excluding the components on the top of the cabinet)

1900 mm 900 mm 750 mm (Height Width Depth, dimensions of outer package)

II. Weight

Table 1-2 Weight of cBTS3612 cabinet (fully equipped)

BTS configuration Weight (kg)

S(1/1/1) 350 S(2/2/2) 390 S(4/4/4) 550


1-9


Table 1-3 Power consumption of BTS3606 cabinet

450 MHz 800 MHz 1900 MHz

S(1/1/1) 1400 W 1500 W 1900 W S(2/2/2) 2600 W 2800 W 3600 W S(4/4/4) 5000 W 5200 W 7000 W

1.3 BTS3612A Cabinet BTS3612A cabinet is an outdoor cabinet that offers medium capacity and allows easy installation.

1.3.1 Overview of BTS3612A Cabinet

The cabinet is design with full consideration of customers requirement on service, capacity, coverage, transmission, power supply, instillation and maintenance. The cabinet is designed in compliance with the IEC297 standards.

When fully equipped, one BTS3612A supports two carriers and three sectors. A combined BTS3612A cabinet can support the flexible configuration of four carriers and three sectors or two carriers and six sectors. BTS3612A cabinet is of modular architecture. The cabinet capacity can be expanded by adding modules.

The BTS3612A cabinet has the following features:

z Fully-enclosed integrated structure and excellent environment adaptability z Excellent electrical conductivity and shielding effect z Good ventilation effect owing to its reasonable design of air ducts z Easy installation and maintenance z Nice appearance


BTS3612A cabinet consists of main equipment cabinet (right) and auxiliary equipment cabinet (left). It is equipped with:

z Baseband subrack z Combined subrack z Transmission equipment subrack z Power supply subrack z Battery subrack z Cabling trough z Fiber management tray

Band

Power consumption Configuration


1-10

z Secondary power switch box (in the auxiliary equipment cabinet)

Figure 1-7 shows the structure of the BTS3612A cabinet.

Figure 1-7 BTS3612A cabinet

Figure 1-8 is the front view of the BTS3612A cabinet and Figure 1-9 is the components of the cabinet.


1-11

Figure 1-8 Front view of the BTS3612A cabinet


1-12

(1) Cabinet (2) DC power distribution subrack (3) Power supply subrack (4) Transmission equipment subrack (5) Battery subrack (6) AC power distribution subrack (7) Baseband subrack (8) Combined subrack

Figure 1-9 Components of the BTS3612A cabinet


I. Dimensions

1700 mm 1200 mm 1000 mm (Height Width Depth)

II. Weight

About 650 kg (excluding batteries and built-in transmission equipment)


Table 1-4 lists the power consumptions of BTS3612A cabinet when the BTS3612A cabinet is equipped with a 2000 W air conditioner and without batteries.


1-13

Table 1-4 power consumptions of BTS3612A cabinet when the BTS3612A cabinet is equipped with a 2000 W air conditioner and without batteries

450M Hz 800 MHz 1900 MHz

S(1/1/1) 3600 W 3700 W 4100 W S(2/2/2) 5000 W 5200 W 6100 W

Table 1-5 lists the cabinet power increments of BTS3612A cabinet when the BTS3612A cabinet is equipped with batteries.

Table 1-5 power increments of BTS3612A cabinet when the BTS3612A cabinet is equipped with batteries

Capacity of batteries Cabinet power increment (same for two different BTS configurations)

65 Ah 600 W

200 Ah 1800 W

260 Ah 2400 W

300 Ah 2700 W

650 Ah 6000 W

Table 1-6 lists the cabinet power consumptions of BTS3612A cabinet when the BTS3612A cabinet is equipped with 300 Ah batteries.power consumptions of BTS3612A cabinet when the BTS3612A cabinet is equipped with 300 Ah batteries

450 MHz 800 MHz 1900 MHz

S(1/1/1) 3600W+2700W 3700W+2700W 4100W+2700W S(2/2/2) 5000W+2700W 5200W+2700W 6100W+2700W

IV. Protection specifications

The BTS3612A is designed in compliance with the IT55 protection specifications. Sufficient water-proof and anti-dust measures are taken.

Table 1-7 lists the protection specifications of the major ports.

Band

Band Power consumption Configuration

Power consumption Configuration


1-14

Table 1-7 protection specifications of the major ports

Port Differential mode Common mode

AC power supply port 40 kA 40 kA (8/20 us)

E1 port 5 kA 10 kA (8/20 us) Antenna feeder port 8 kA 8 kA (8/20 us) GPS port 8 kA 8 kA (8/20 us)

Hardware Description Manual Airbridge BTS36 Series CDMA Base Station Chapter 2 Subracks

2-1

Chapter 2 Subracks

This chapter introduces the subracks of BTS3606, cBTS3612, and BTS3612A cabinets.

2.1 BTS3606 Subrack BTS3606 cabinet includes the CDDU subrack, combined subrack, and power supply subrack.

2.1.1 CDDU Subrack

The CDDU subrack, in which the CDDU is configured, positions in the upper part of the BTS3606 cabinet. The CDDU, one of the RF front end modules, functions to complete the filtering and duplex isolation of two received and transmitted signals.

I. Outline

Figure 2-1 shows the outline of the CDDU subrack.

Figure 2-1 CDDU subrack

II. Configuration

The CDDU subrack can be configured with three CDDUs at most, as shown in Figure 2-2.


2-2

CDDU0

CDDU1

CDDU2

Figure 2-2 CDDU subrack configuration

III. Dimensions

270.5 mm 393.5 mm 416.5 mm (Height Width Depth)

IV. Interface

The following table describes the interfaces of CDDU.

Interface Description

Transmitting input interface

Transmits signals between the transmitting input end and the CHPA interface.

Transmitting output interface Transmits output signals to the cabinet top.

Receiving input interface Receives signals from the cabinet top, which will then be filtered in the CDDU.

Test interface Transmits test interface signals for coupling transmitted and received signals.

Note: The interface mentioned in this section refers to interfaces of the CDDU instead of CDDU subrack.

V. Introduction to the backplane

None.

2.1.2 Combined Subrack

The combined subrack is installed under the CDDU subrack and above the cabling trough. It consists of a baseband subrack and a RF subrack. It can be configured with baseband boards and Compact-BTS Transceiver Module (CTRM) / Compact-BTS High Power Amplifier Unit (CHPA), forming the baseband subsystem and RF subsystem respectively.


2-3

I. Outline

Figure 2-3 shows the structure of the combined subrack.

Figure 2-3 Combined subrack

II. Configuration

The boards configured in the combined subrack include those in the baseband subrack and those in the RF subrack. The boards in the baseband subrack cover BTS Control Interface Module (BCIM), Compact-BTS Channel Process Module (CCPM), BTS Control and Clock Module (BCKM), and BTS High Precision Clock Module (HPCM, optional). The boards in the RF subrack cover CTRM and CHPA. Figure 2-4 shows the configuration of the combined subrack.


2-4

CHPA1

CTRM3

CHPA3

CTRM1

CTRM5

CHPA5

CCPM4

BCKM0

CCPM2

BCIM0

CHPA0

CTRM2

CHPA2

CTRM0

CTRM4

CHPA4

CCPM5

BCKM1

CCPM3

CCPM0

CCPM1

Figure 2-4 Combined subrack configuration

III. Dimensions

531.55 mm 632 mm 523.24 mm (Height Width Depth)

IV. Interface

The following table describes the interfaces on the Baseband Backplane Module (BBKM).


System power interface Receives the +27 V DC from the power supply subrack.

Environment alarm interface Connects with an environment monitoring instrument to receive/transmit environment alarm information.

External synchronization clock input interface

Receives external clock sources such as GPS clock source and GLONASS clock source.

E1/T1 interfaces Receives/transmits E1/T1 signals from/to the BSC.

Clock signal output interface Outputs the internal clock (for example, HPCM clock) to other subracks.

The following table describes the interfaces on the Compact-BTS Transceiver Backplane Module (CTBM).


CTRM slot interface Including 2 mmHM A-connector used to connect digital signals, clock signal connector, and 2 mmHM N-connector used as a power connector.


2-5


CHPA slot interface 24W7 connector, in which the low frequency pinout serves as the interworking signal of the CHPA and the CTRM, and the blind mate jack as the power pinout.

Interworking interface of the CTBM and the BBKM 2 mmHM A-connector.

Interworking interface between CTBMs High-density DB connector, supporting power mutual aid.

V. Introduction to BBKM and CTBM

The backplane of the combined subrack include BBKM and CTBM. z BBKM Figure 2-5 shows the rear view of the BBKM marked QCK1BBKM.


2-6

(1) Filter of baseband subrack (2) Power interface (3) 10 M clock interface (4) E1 cable interface (5) Alarm interface of baseband subrack

Figure 2-5 Rear view of the BBKM

The BBKM (rear view) provides two external interfaces in the middle which connect E1 cable and alarm signal cable respectively. The baseband subrack collects alarm information of the cabinet-top and fan box through alarm signal cables. There are two baseband filters on the upper part of the BBKM (rear view). As shown in Figure 2-5, the +27 V power is led in from the left of the filter, and the power supply for baseband subrack and fan box is led out from the right side. z CTBM


2-7

The CTBM marked QCK1CTBM is the backplane of the carrier unit. It implements the signal monitoring interconnection between two carrier units and the signal transmission between the CTRM, CHPA and baseband board, as shown in Figure 2-6.

(1) Interface for +27 V power input (2) Interface for GND cable lead-in (3) 10M clock interface (4) CTBM (5) Blind mate plug of RF subrack (6) RS485 serial port

Figure 2-6 Rear view of the CTBM

Each CTBM is configured with seven rows of blind mate plugs. The first and third connectors of each blind mate plug from top to bottom are connected with the +27 V power cable and GND cable respectively. The two ends of the 10M clock RF cable connect to the 10M clock interfaces of the baseband subrack and RF subrack respectively. In this way, the synchronization clock signals of the baseband subrack can be sent to the RF subrack to keep the clocks of the baseband subrack and RF subrack synchronized. The RS485 serial ports of the two RF subracks are connected by serial port cables. They function to monitor the running status of each carrier.

2.1.3 Power Supply Subrack

The power supply subrack positions under the combined subrack. It is used for configuring the PSU (for example, DC/DC unit). The DC/DC unit provides the +27 V power to the BTS3606, and forms the power supply subsystem together with the power distribution unit, lightning protection unit, and monitoring unit. All PSUs in the power supply subrack transfer power and signals through the Compact-BSC Power Backplane Module (CPBM) at the back of the power supply subrack. They support Online Insertion and Removal (OIR).


2-8

I. Outline

Figure 2-7 shows the structure of the power supply subrack.

Figure 2-7 Power supply subrack

II. Configuration

The power supply subrack can be configured with up to three PSUs that work in 2+1 backup mode and provide the same output power. Figure 2-8 shows the configuration of the power supply subrack.

PSU

PSU

PSU

Figure 2-8 Power supply subrack configuration

III. Dimensions

177 mm 523.24 mm 402.7 mm (Height Width Depth)

IV. Interface

The following table describes the interfaces of PSU.


RS485 serial port Communicates with the baseband. The baud rate is 9600 bit/s.

DB9 interface Connects the upper and lower level equipment on the bus or serves as a test interface.


2-9

V. Introduction to CPBM

All PSUs in the power supply subrack transfer power and signals through the CPBM at the back of the power supply subrack. The CPBM, marked QCK1CPBM, locates under the BBKM and CTBM. There are four horizontal busbars on the CPBM from top to bottom: +27 V power busbar, +27 V GND busbar, 48 V GND busbar, 48 V power busbar, as shown in Figure 2-9.

(1) +27 V power busbar (2) +27 V GND busbar (3) Serial port for communication (4) 48 V GND busbar (5) 48 V power busbar

Figure 2-9 Rear view of the CPBM

2.2 cBTS3612 Subrack cBTS3612 cabinet includes the baseband subrack, fan subrack, power supply subrack, carrier subrack, RLDU subrack, and RF front-end module subrack.

2.2.1 Baseband Subrack

The baseband subrack is installed at the upper part of the cBTS3612 cabinet. It can be configured with baseband subsystem boards. The baseband subsystem performs the following functions: z Abis interface protocol processing. z Baseband data modulating/demodulating. z Channel encoding/decoding. z Air interface physical layer and MAC layer protocol processing. z Clock synchronization processing. z System operation and maintenance.


2-10

I. Outline

Figure 2-10 shows the outline of a baseband subrack.

Figure 2-10 Baseband subrack

II. Configuration

The boards configured in the baseband subrack include BTS Control Interface Module (BCIM), BTS Channel Process Module (BCPM), BTS Resource Distribution Module (BRDM), and BTS Control & Clock Module (BCKM), as shown in Figure 2-11. The configuration of the baseband subrack covers full configuration and simple configuration (supporting 18 carriers).

0

BC IM

1

BC IM

2

BCPM

3

BCPM

4

BCPM

5

BCPM

6

BCPM

7

BCPM

8

BRDM

BRDM

BCKM

BCKM

BRDM

BRDM

BCPM

BCPM

BCPM

BCPM

BCPM

BCPM

BRDM

BRDM

10 11 12 13 14 15 16 17 18 19 20 219

0 1 0 1 2 3 4 5 2 01

10

0 1 8 9 10 11 12 13 4 53

Slot No.

Board No.

Figure 2-11 Baseband subrack configuration

III. Dimensions


IV. Interface

The following table describes the interfaces of baseband subrack.


System power interface Leads in system power and provides distributed power to the boards.


2-11


Remote maintenance serial port An RS232 serial interface connected with a modem to implement remote maintenance and monitoring in the case of OML link failure.

Environment alarm interface A RS485 serial interface connected with the external environment monitoring instruction to collect and process the environment information of the equipment room.

Fan alarm serial port in baseband subrack

Monitors the fan module and power supply module of the baseband subrack.


Synchronizes the system clock with the external clock when GPS/GLONASS is not available.

16 E1/T1 interfaces Connects with the BSC.

V. Introduction to CBKM

The CDMA Backplane Module (CBKM) realizes the interconnection of high-speed data links between baseband boards and exchanges various management and control information of the boards by using high-speed backplane technologies. Figure 2-12 is the rear view of the CBKM marked QC51CBKM.

DD

+27VPGNDPower Ground

J2

J4

J1

JP2

JP3

JP1

Figure 2-12 Rear view of the CBKM

Three paralleled power sockets are available on the right lower part of the baseband subrack (rear view): JP1, JP2, and JP3. Each socket has three jacks to connect the +27 V power cable, PGND cable, and power grounding cable. In addition, there are jacks J2, J1, and J4 on the right upper part of the baseband subrack (rear view). J1 and J2 are used to connect trunk cable plugs. The other end of the truck cable is connected with the top of the cBTS3612 cabinet. J4 is used to connect alarm cables.


2-12

2.2.2 Fan Subrack

The fan subrack is installed right under the baseband subrack, serving as a part of the blower type cooling system of the baseband subrack. It corresponds to the fan subsystem. The BTS FAN Module (BFAN) consists of two fan boxes and one fan enclosure. z Each fan box has four fan units (24 V DC brush-free fans) and one BTS Fan

Monitor Module (BFMM). z The fan enclosure is used for mounting fan boxes. The outside of the fan

enclosure is the BTS Fan Block Interface Board (BFNB) that provides system interfaces.

I. Outline

Figure 2-13 shows the outline of a fan subrack.

Figure 2-13 Fan subrack

II. Configuration

The fan subrack can be configured with two BFANs, as shown in Figure 2-14.

FAN

FAN

Figure 2-14 Fan subrack configuration

III. Dimensions

132.5 mm 672 mm 519.25mm (Height Width Depth)

IV. Interface

The following table describers the interfaces of fan subrack.


Fan box electrical interface Provides the power interfaces and serial communication interfaces for the two fan boxes through MOLEX connectors.


2-13


System power interface Leads in system power through a large 3-pin connector.

System serial communication interface

Provides external serial communication interfaces through a DB-15 signal socket.

V. Introduction to BFNB

The BFNB provides electrical connection between the fan box and the system. It provides the fan box with blind mate interfaces and the system with power interfaces and serial communication interfaces. The BFNB marked QC51BFNB is fixed in the middle of the back of the fan box, as shown in Figure 2-15.

(1) MOLEX connector (2) Large 3-PIN power socket (3) DB-15 signal socket

Figure 2-15 Structure of the BFNB

2.2.3 Power Supply Subrack

The power supply subrack is installed between the fan subrack and RF subrack at the lower part of the cBTS3612 cabinet. It serves as a part of the power supply subsystem.Each power supply module has its own built-in monitoring unit. These units are connected on the backplane. They report information to the BTS Transceiver Module (BTRM) through the universal monitoring bus, and then to the BCKM to implement power management and monitoring.

I. Outline

Figure 2-16 shows the outline of a power supply subrack.



2-14

II. Configuration

When the -48 V power input is adopted, the power supply subrack needs to be configured with the PSUDC/DC to convert the -48 V power into +27 V system power. When the +24 V power input is adopted, it is unnecessary to configure the PSUDC/DC. The following presents the power supply subrack configuration when the former power supply solution is adopted. The power supply subrack can be configured with up to five PSUs which work in 4+1 backup mode, as shown in Figure 2-17.

PSU

PSU

PSU

PSU

PSU


III. Dimensions

168 mm 672 mm 367.7mm (Height Width Depth)

IV. Interface

The following table describes the interfaces of power supply subrack.


+27 V power busbar Leads out the +27 V power to the +27 V connecting terminal on the left of the switch box (rear view).

+27 V GND busbar Leads out the +27 V GND cable to the grounding busbar on the left of the rack.

-48 V power busbar Leads in the -48 V power from the EMI filter on the top of the cabinet.

-48 V GND busbar Leads in the -48 V GND from the EMI filter on the top the cabinet.


The backplane of the power supply subrack positions below the BBKM and BFNB. There are four horizontal busbars on the backplane from top to bottom: +27 V power busbar, +27 V GND busbar, -48 V GND busbar, -48 V power busbar, as shown in Figure 2-18.


2-15

(1) +27 V power busbar (2) +27 V GND busbar (3) Power supply subrack backplane (4) Serial port for communication (5) -48 V power busbar (6) -48 V GND busbar

Figure 2-18 Rear view of the power supply subrack backplane

2.2.4 Carrier Subrack

The cBTS3612 is configured with two carrier subracks: one is under the power supply subrack, and the other under the CDU subrack. The carrier subrack is used for configuring the BTRM and the BTS High Power Amplifier Unit (BHPA).

I. Outline

Figure 2-19 shows the outline of a carrier subrack.

Figure 2-19 Carrier subrack

II. Configuration

Each carrier subrack has six BTRM slots and six BHPA slots. Configure the BTRM and BHPA as needed, and install BRFMs at front of the BTRM and BHPA. Empty slots must be covered with dummy panels. Figure 2-20 shows the configuration of the carrier subrack.


2-16

BHPA3

BTRM1

BHPA1

BTRM3

BHPA5

BTRM7

BTRM5

BHPA7

BHPA9

BTRM9

BHPA11

BTRM1 1

BHPA2

BTRM0

BHPA0

BTRM2

BHPA4

BTRM6

BTRM4

BHPA6

BHPA8

BTRM8

BHPA10

BTRM1 0

Figure 2-20 Carrier subrack configuration

III. Dimensions

276.35 mm 672 mm 508 mm (Height Width Depth)

IV. Interface

The following table describes the interfaces of carrier subrack.


9-pin alarm serial port Collects the Receive LNA Distribution Unit (RLDU) alarm signals and sends them to RF modules.

BTRM blind mate connector Transmits the main/diversity input RF signals and output RF signals of the BTRM and +27 V DC power for the BTRM.

BHPA blind mate connector Transmits the input/output RF signals of the BHPA and +27 V power and +27 V GND.


The backplane of the carrier subrack is marked QC51BTBM, as shown in Figure 2-21.


2-17

(1) RF subrack backplane (2) BHPA blind mate connector (3) Alarm serial port (4) BTRM blind mate connector

Figure 2-21 Rear view of the RF subrack backplane

Each backplane has three 9-pin alarm serial ports, which are connected with the alarm serial ports of the RLDU front panel through alarm cables. These serial ports collect the alarm signals of the RLDU and send them to the RF modules and then to the baseband subrack. One carrier subrack contains six identical RF modules, each of which has two blind mate connectors for the BTRM and BHPA.

2.2.5 RLDU Subrack

The RLDU subrack used for configuring RLDUs positions under the carrier subrack at the upper part of the cBTS3612 cabinet. The RLDU completes low noise amplification and distribution for BTS main/diversity receiving signals.

I. Outline

Figure 2-22 shows the outline of an RLDU subrack.

Figure 2-22 RLDU subrack

II. Configuration

The RLDU subrack can be configured with one to three RLDUs.


2-18

RLDU0 RLDU1 RLDU2

Figure 2-23 RLDU subrack

Note: There is a large cover board at the front of the RLDU subrack and CDU subrack. Accordingly, it is unnecessary to use dummy panels where RLDUs or CDUs are not configured.

III. Dimensions

None.

IV. Interface

The following table describes the interfaces of RLDU.


8W8DB combination blind mate connector

Transmits main/diversity received RF signals output from CDU/DFU/DDU receive filters, couples the RF signals, and sends them to the BTRM.

DB15 interface Transmits RLDU standing wave detection and LNA state detection alarm signals and BTS forward power detection voltage.

MOLEX power connector Connects the +27 V DC power for the RLDU.


The RLDU is the reverse link function module of the cBTS3612, which interfaces with the CDU/DFU/DDU and BTRM at both input side and output side through two sets of 8W8DB combination blind mate connectors on the backside of the module. The RLDU and CDU share one backplane, as shown in Figure 2-24.


2-19

(1) CDU blind mate connector (2) RLDU blind mate connector (3) Semi-circular cable access hole

Figure 2-24 Rear view of the RLDU/ RF front-end module subrack backplane

2.2.6 RF front-end Module Subrack

The RF front-end module subrack for configuring CDU/DFU/DDU is under the RLDU subrack. z The Combining Duplexer Unit (CDU) is applicable to frequency bands 800 MHz

and 450 MHz. One CDU supports two sector carriers. The sector carriers supported by one CDU should be no less than two-carrier spacing.

z The Duplexer and Filter Unit (DFU) is applicable to frequency bands 450 MHz and 1900 MHz. One DFU supports one sector carrier.

z The Dual Duplexer Unit (DDU) is applicable to the 1900 MHz frequency band. One DDU supports two sector carriers. The carrier spacing is unnecessary.

I. Outline

Figure 2-25 shows the outline of a RF front-end module subrack.


2-20

Figure 2-25 RF front-end module subrack

II. Configuration

The RF front-end module subrack can be configured with 1 to 6 CDUs or DFUs or DDUs as required, as shown in Figure 2-26.

CDU0

CDU1

CDU2

CDU3

CDU4

CDU5

Figure 2-26 RF front-end module subrack configuration

III. Dimensions


IV. Interface

The following table describes the interfaces of RF front-end module.


8W8DB combination blind mate connector

Transmits RF signals between CDU combiner input ports and BHPA output ports. Transmits main/diversity received filtered signals and forward/reverse coupled RF signals to the RLDU.

N-type connector Transmits signals to the cabinet-top antenna interface, and receives signals transmitted from the cabinet-top antenna interface to DFU for filtering.

SMA-type connector Output forward/reverse coupled test signals.


The RF front-end module shares the backplane with the RLDU. See Figure 2-24.


2-21

2.3 BTS3612A Subrack BTS3612A cabinet includes the baseband subrack, combined subrack, power supply subrack, transmission equipment subrack, and battery subrack.

2.3.1 Baseband Subrack

The baseband subrack is used for configuring baseband boards, serving as a part of the baseband subsystem. All baseband boards share the same power switch.

I. Outline

Figure 2-27 shows the outline of a baseband subrack.

Figure 2-27 Baseband subrack

II. Configuration

The boards configured in the baseband subrack include BCIM, BCPM, BRDM, and BCKM, as shown in Figure 2-28.


2-22

Slot No.

Board No.

0

BC IM

1

BC IM

2

BCPM

3

BCPM

BCKM

BCKM

BRDM

BRDM

BCPM

BCPM

BCPM

5 6 7 8 9 10 11

0 1 4 5 0 1 0 1 9 10 11

4

BCPM

8

Figure 2-28 Baseband subrack configuration

III. Dimensions


IV. Interface

The following table describes the interfaces of baseband subrack.


System power interface Leads in system power and provides distributed power to all boards.

Remote maintenance serial port

An RS232 serial interface connected with a modem to implement the remote maintenance and monitoring in the case of OML link failure.

Environment alarm interface An RS485 serial interface connected with the external environment monitoring instruction to collect and process the environment information of the equipment room.

Fan alarm serial port of baseband subrack

Monitors fan modules and power supply modules of the baseband subrack.


Synchronizes the system clock with the external clock when GPS/GLONASS is not available.

16 E1/T1 interfaces Connects with the BSC. The BTS through this interface can connect with the transmission system that connects to the BSC. If the cabinet is configured with transmission equipment, the BTS can connect to the transmission equipment and then to the transmission system.

V. Introduction to the BASB

The BTS Baseband Backplane (BASB) realizes the interconnection of high-speed data links between baseband boards, and exchanges various management and control information of the boards by using high-speed backplane technology.


2-23

The BASB consists of connectors and board slots. Connectors include a test board slot, the input connector of the +24 V power/GND, and three DB37 D-connectors. Power input connectors and D-connectors are all crimped devices.

Note: Except the power supply subrack, all the subracks of the BTS3612A use the backplanes of the BTS3606. For details, see descriptions of BTS3606 subrack backplanes.

2.3.2 Combined Subrack

z The combined subrack comprises two carrier subracks and one duplexer subrack. The two carrier subracks are used to configure carrier units (A group of BTRM and BHPA forms a carrier unit). Each subrack can be configured with one RLDU.

z The duplexer subrack is located between the upper and lower carrier subracks. It is used to configure duplexer units (for example, CDU). DFU and DDU can be configured as needed. In addition, at the right side of the subrack is a lightning arrester connected to the satellite signal synchronization antenna.

I. Outline

Figure 2-29 shows the outline of a combined subrack.


2-24

Figure 2-29 Combined subrack

II. Configuration

The carrier subrack is configured with BTRM, BHPA, and RLDU. The duplexer subrack is configured with one to three CDUs or DFUs or DDUs as needed. z The BTRM/BHPA corresponding to the CDU, DDU or DFU must be configured

from top to bottom and from left to right. z The BTRM/BHPA corresponding to the DFU must be configured at the lower row. Figure 2-30 shows the configuration of the combined subrack.


2-25

DFU/DDU/CDU2

DFU/DDU/CDU1

DFU/DDU/CDU0

BHPA1

BTRM1

BHPA3

BTRM3

BHPA5

BTRM5

RLDU1

BHPA0

BTRM0

BHPA2

BTRM2

BHPA4

BTRM4

RLDU0

Sync

hron

ous

ante

nna

feed

erar

rest

er

Figure 2-30 Combined subrack configuration

III. Dimensions


IV. Interface

The following table describes the interfaces of combined subrack.


BTRM A-type connector Transmits RLDU alarm signals led in from DB9 connectors and RS485 interface signals from BHPA 24W7 DB combination blind mate connectors.

BTRM C4-type connector Transmits the main/diversity input RF signals and output RF signals of the BTRM, and provides the +24 V DC power for the BTRM.

BHPA 24W7 DB combination blind mate connector

Transmits the input/output RF signals of the BHPA, provides the +24 V DC power for the BHPA, and connects the temperature sensor to collect temperature information and sends it to the BHPA.

DB9 connector Connects two alarm output terminals of the RLDU, and collects alarm level signals of the RLDU to send to the BTRM.

Temperature sensor Supervises the air temperature of each air exhaust vent of the BHPA, and converts it into current to send to the FMCB for real-time control of fan speed.


2-26

V. Introduction to BTRB

The BTS Transceiver Backplane (BTRB) is the transceiver backplane of the carrier unit. It consists of various connectors and temperature sensor. The BTRB connects the fixed BTRM/BHPA and RLDU to supervise the temperature of the BHPA. It also provides the alarm signal interface between the BTRM and the RLDU.

2.3.3 Power supply subrack

The power supply subrack can be configured with DC/DC units, AC/DC units, and the power monitoring unit. The BTS3612A supports the 110 V AC and 220 V AC power inputs. z The PSUAC/DC converts the 110 V AC/220 V AC power into the -48 V DC power. z The PSUDC/DC converts the -48 V DC power into the +24 V DC power.

I. Outline

Figure 2-31 shows the outline of a power supply subrack.


II. Configuration

The power supply subrack is configured with nine PSUAC/DC modules, three PSUDC/DC modules, and a PMU. One of the nine PSUAC/DC is the standby PSUAC/DC, providing a maximum current output of 200A (8 25).The PSUAC/DC of two types of specification support the 110 V AC and 220 V AC power inputs respectively. One of the three PSUAC/DC is the standby PSUAC/DC, providing a maximum current output of 130 A (2 65).


2-27

Figure 2-32 shows the configuration of the power supply subrack.

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PSU(AC/DC)

PMU

PSU(DC/DC)

PSU(DC/DC)

PSU(DC/DC)


III. Dimensions

168 mm 458 mm 367.7 mm (Height Width Depth)

IV. Interface

The following table describes the interfaces of power supply subrack.


220 V AC power input busbar Receives the 220 V AC power led in from the PSUAC/DC and converts it into -48 V DC power outputs.

-48 V AC power input busbar Receives the -48 V DC input and converts it into +24 V DC power output.


The backplane of the power supply subrack contains the backplane of the AC/DC unit and the backplane of the DC/DC unit. The backplane of the DC/DC unit is the same as that of the BTS3606 power supply subrack, as shown in Figure 2-9.

Figure 2-33 shows the backplane of the AC/DC unit.


2-28

(1) AC live line connector (2) AC neutral line connector (3) Grounding cable connector (4) AC detection live line connector (5) AC detection neutral line

connector (6) Major load tributary -48 V copper busbar

(7) Minor load tributary -48 V copper busbar

(8) Battery tributary -48 V copper busbar.

(9) +48 V copper busbar

Figure 2-33 Backplane of the AC/DC unit

2.3.4 Transmission Equipment Subrack

Appropriate space is reserved in the transmission equipment subrack for configuring microwave, High-speed Digital Subscriber Line (HDSL), or SDH transmission equipment to support various modes of access to transmission network.

I. Outline

None.

II. Configuration

The transmission equipment subrack can be configured with the microwave, HDSL, or SDH transmission equipment as needed.

III. Dimensions

None.

IV. Interface

None.


None.


2-29

2.3.5 Battery Subrack

The battery subrack is the auxiliary equipment in the BTS3612A cabinet. It can be installed with four 12 V/65 Ah storage batteries to maintain the normal operation of the BTS3612A in S(1/1/1) configuration for more than 30 minutes.

I. Outline

None.

II. Configuration

The battery subrack can be configured with batteries or an AC lightning arrester/AC filter alternatively. It can be configured with the -48 V/65 Ah group battery. Four 12 V/65 Ah batteries can be concatenated to form a group battery.

If the battery cabinet is installed, the built-in battery subrack must be provided with an AC lightning arrester and a lightning protection unit.

III. Dimensions

None.

IV. Interface

None.


None.

Hardware Description Manual Airbridge BTS36 Series CDMA Base Station Chapter 3 Parts

3-1

Chapter 3 Parts

This chapter introduces all boards and modules configured in BTS3606, cBTS3612, and BTS3612A cabinets. The following details the outlook, panel indicators, DIP switches, jumpers, and panel interfaces of boards.

3.1 Overview of Parts Table 3-1 lists the configuration of boards.

Table 3-1 Board configuration

BTS3606 cBTS3612 BTS3612A Board Configured

or not QuantityConfigured

or not QuantityConfigured

or not Quantity

BCIM Y 1 Y 2 Y 2

BCKM Y 2 Y 2 Y 2

BCPM N / Y 12 Y 6

CCPM Y 6 N / N /

BTRM N / Y 12 Y 6

CTRM Y 6 N / N /

BRFM Y 6 Y 12 Y 6

CDU/DDU/DFU N / Y 6 Y 3

CDDU Y 3 N / N /

PSU (AC/DC) N / N / Y 9

PSU (DC/DC) Y 3 Y 5 Y 3

PMU N / N / Y 1

BESP Y 2 Y 2 Y 1

BRDM N / Y 6 Y 2

RLDU N / Y 3 Y 2

HPCM (optional) Y 1 Y 1 N / BHPA Y 6 Y 12 Y 6

BPLI N / Y 1 N /


3-2

3.2 BCIM The BTS Control Interface Module (BCIM) is a functional entity used to connect the BTS to the BSC. It also provides external E1/T1 interfaces. Whether external interfaces work in E1 mode or T1 mode depends on the setting of DIP switches.

3.2.1 BCIM Panel

The BCIM has two versions: QC51BCIM and QC52BCIM. Their panels are the same, as shown in Figure 3-1.

Figure 3-1 BCIM panel


3-3

3.2.2 BCIM Indicators

Table 3-2 lists the indicators on the panel of the BCIM.

Table 3-2 Description of BCIM indicators

Name Color Meaning Description Normal status

RUN Green Board status indicator

Flashing at 4 Hz: The BCIM is being powered on and initialized or is downloading software. Flashing at 0.5 Hz: The BCIM runs normally. Other: The BCIM is faulty.

Flashing at 0.5 Hz

ALM Red Alarm indicator

Flashing at 4 Hz: Critical alarm. Flashing at 0.5 Hz: Major alarm. Flashing at 0.25 Hz: Minor alarm. Off: No alarm.

Off

ACT Green Operation indicator

On: The BCIM runs normally. Flashing at 4 Hz: Fault occurs on the ATM bus. Flashing at 0.5 Hz: The IMA group is interrupted. Flashing at 0.25 Hz: The IMA link is disconnected.

On

3.2.3 DIP Switches and

Documents

BTS36 Series Hardware Description Manual