-
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.
-
Convention Description
Boldface Headings are in Boldface.
Courier New Terminal Display is in Courier New.
II. Command conventions
Convention Description
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
Convention Description
< > 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
-
Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Table of Contents
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
-
Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Table of Contents
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
-
Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Table of Contents
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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Figure 1-2 Front view of the BTS3606 cabinet
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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(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
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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
1.2.2 Cabinet Structure
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
1-7
Figure 1-5 Front view of cBTS3612 cabinet
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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.
1.2.3 Technical Specifications
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
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
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III. Power consumption
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
1.3.2 Cabinet Structure
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
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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Figure 1-8 Front view of the BTS3612A cabinet
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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(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
1.3.3 Technical Specifications
I. Dimensions
1700 mm 1200 mm 1000 mm (Height Width Depth)
II. Weight
About 650 kg (excluding batteries and built-in transmission
equipment)
III. Power consumption
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.
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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
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 1 Cabinets
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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)
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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).
Interface Description
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).
Interface Description
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.
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Interface Description
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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
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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).
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
Interface Description
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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
265.35 mm 672 mm 525.2 mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of baseband
subrack.
Interface Description
System power interface Leads in system power and provides
distributed power to the boards.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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Interface Description
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.
External synchronization clock input interface
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
Interface Description
Fan box electrical interface Provides the power interfaces and
serial communication interfaces for the two fan boxes through MOLEX
connectors.
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Station Chapter 2 Subracks
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Interface Description
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.
Figure 2-16 Power supply subrack
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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
Figure 2-17 Power supply subrack configuration
III. Dimensions
168 mm 672 mm 367.7mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of power supply
subrack.
Interface Description
+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.
V. Introduction to the backplane
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
Interface Description
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.
V. Introduction to the backplane
The backplane of the carrier subrack is marked QC51BTBM, as
shown in Figure 2-21.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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.
Interface Description
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.
V. Introduction to the backplane
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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
462.6 mm 672 mm 526 mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of RF front-end
module.
Interface Description
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.
V. Introduction to the backplane
The RF front-end module shares the backplane with the RLDU. See
Figure 2-24.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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
512.2 mm 458 mm 265.85 mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of baseband
subrack.
Interface Description
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.
External synchronization clock input interface
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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
922.35 mm 458 mm 508 mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of combined
subrack.
Interface Description
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.
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Station Chapter 2 Subracks
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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.
Figure 2-31 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).
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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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)
Figure 2-32 Power supply subrack configuration
III. Dimensions
168 mm 458 mm 367.7 mm (Height Width Depth)
IV. Interface
The following table describes the interfaces of power supply
subrack.
Interface Description
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.
V. Introduction to the backplane
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.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 2 Subracks
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(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.
V. Introduction to the backplane
None.
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
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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.
V. Introduction to the backplane
None.
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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 /
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 3 Parts
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
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Hardware Description Manual Airbridge BTS36 Series CDMA Base
Station Chapter 3 Parts
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