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8/13/2019 BTS3900 GSM Hardware Description(V300_10)
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BTS3900 GSM
V300
Hardware Description
Issue 10
Date 2010-10-30
HUAWEI TECHNOLOGIES CO., LTD.
8/13/2019 BTS3900 GSM Hardware Description(V300_10)
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8/13/2019 BTS3900 GSM Hardware Description(V300_10)
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Copyright Huawei Technologies Co., Ltd. 2010. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Issue 10 (2010-10-30) Huawei Proprietary and Confidential
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About This Document
Purposes
This document provides an overview of the BTS3900 GSM hardware for the planning and
deployment of the BTS3900 GSM. It describes the configurations, functions, and specifications
of the components in the BTS3900 GSM cabinet. This document also describes the classification,connector specification, and installation positions of the cables.
Product Version
The following table lists the product version related to this document.
Product Name Product Version
BTS3900 GSM V300R008
V300R009
V100R012
Intended Audience
This document is intended for:
l System Engineer
l Base Station Installer
l Site Maintainer
Organization
1 Changes in the BTS3900 GSM Hardware Description
This chapter describes the changes in theBTS3900 GSM Hardware Description.
2 Exterior of the BTS3900 Cabinet
The BTS3900 cabinet is designed in compliance with the IEC297 standard. It is a vertical cabinet.
BTS3900 GSM
Hardware Description About This Document
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3 BTS3900 Hardware Configuration
This section describes the cabinet, power system, transmission system, CPRI port, and
monitoring system configurations of the BTS3900, and provides reference for planning and
deploying the BTS3900.
4 BTS3900 Components
This section describes the BTS3900 components, which are the BBU, DCDU-01, Fan Box, RFU,
GATM, EMU, ELU, power system, and PS4890 components.
5 BTS3900 Cables
This chapter describes the BTS3900 cables. The BTS3900 cables consist of the PGND cable,
power cable, transmission cable, CPRI cable, signal cable, and RF cable.
6 BTS3900 Auxiliary Equipment
This chapter describes the auxiliary equipment of the BTS3900.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol Description
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation, which if not
avoided,could result in equipment damage, data loss,
performance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points of the main text.
General Conventions
The general conventions that may be found in this document are defined as follows.
Convention Description
Times New Roman Normal paragraphs are in Times New Roman.
Boldface Names of files, directories, folders, and users are in
boldface. For example, log in as user root.
About This Document
BTS3900 GSM
Hardware Description
iv Huawei Proprietary and Confidential
Copyright Huawei Technologies Co., Ltd.
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Convention Description
Italic Book titles are in italics.
Courier New Examples of information displayed on the screen are in
Courier New.
Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
[ ] Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... } Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ] Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }* Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
[ x | y | ... ]* Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
GUI Conventions
The GUI conventions that may be found in this document are defined as follows.
Convention Description
Boldface Buttons, menus, parameters, tabs, window, and dialog titles
are in boldface. For example, click OK.
> Multi-level menus are in boldfaceand separated by the ">"
signs. For example, choose File> Create> Folder.
Keyboard Operations
The keyboard operations that may be found in this document are defined as follows.
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Hardware Description About This Document
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Format Description
Key Press the key. For example, press Enterand press Tab.
Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt
+Ameans the three keys should be pressed concurrently.
Key 1, Key 2 Press the keys in turn. For example, pressing Alt, Ameans
the two keys should be pressed in turn.
Mouse Operations
The mouse operations that may be found in this document are defined as follows.
Action Description
Click Select and release the primary mouse button without moving
the pointer.
Double-click Press the primary mouse button twice continuously and
quickly without moving the pointer.
Drag Press and hold the primary mouse button and move the
pointer to a certain position.
About This Document
BTS3900 GSM
Hardware Description
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Contents
About This Document...................................................................................................................iii
1 Changes in the BTS3900 GSM Hardware Description.......................................................1-1
2 Exterior of the BTS3900 Cabinet..............................................................................................2-1
3 BTS3900 Hardware Configuration..........................................................................................3-1
3.1 Board andModule Configurations..................................................................................................................3-2
3.1.1 Module Configurations in the Cabinet...................................................................................................3-2
3.1.2 Board Configuration of the BBU3900...................................................................................................3-5
3.2 Combinations of Cabinets...............................................................................................................................3-7
3.3 Power Systemof the BTS3900.....................................................................................................................3-12
3.3.1 Configuration of Circuit Breakers and Connections of Power Cables for the BTS3900.....................3-13
3.3.2 Power Distribution of the BTS3900.....................................................................................................3-14
3.4 BTS3900 Monitoring System........................................................................................................................3-16
3.4.1 BBU Monitoring Port...........................................................................................................................3-16
3.4.2 Configuration of the Monitoring System.............................................................................................3-17
3.4.3 Customized Alarm Inputs.....................................................................................................................3-20
4 BTS3900 Components................................................................................................................4-1
4.1 BBU3900 Equipment......................................................................................................................................4-2
4.1.1 Exterior of the BBU3900.......................................................................................................................4-2
4.1.2 Boards and Module of the BBU3900.....................................................................................................4-3
4.2 DRFU............................................................................................................................................................4-20
4.3 GRFU............................................................................................................................................................4-26
4.4 DCDU-01......................................................................................................................................................4-304.5 Fan Unit.........................................................................................................................................................4-31
4.5.1 Fan........................................................................................................................................................4-32
4.5.2 FMU.....................................................................................................................................................4-32
4.6 GATM...........................................................................................................................................................4-33
4.7 ELU...............................................................................................................................................................4-35
4.8 Power Equipment (DC/DC)..........................................................................................................................4-36
4.8.1 Components of the Power Equipment (DC/DC)..................................................................................4-36
4.8.2 PSU (DC/DC).......................................................................................................................................4-37
4.8.3 Power Subrack (DC/DC)......................................................................................................................4-38
4.9 Power Equipment (AC/DC)..........................................................................................................................4-39
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4.9.1 Components of the Power Equipment (AC/DC)..................................................................................4-40
4.9.2 PMU.....................................................................................................................................................4-41
4.9.3 PSU (AC/DC).......................................................................................................................................4-44
4.9.4 Power Subrack (AC/DC)......................................................................................................................4-46
5 BTS3900 Cables...........................................................................................................................5-1
5.1 List of BTS3900 Cables..................................................................................................................................5-3
5.2 PGND Cables..................................................................................................................................................5-8
5.3 Equipotential Cable.........................................................................................................................................5-9
5.4 BTS3900 Power Cable....................................................................................................................................5-9
5.4.1 Power Cable Connections of the BTS3900..........................................................................................5-10
5.4.2 Input Power Cable for the Cabinet.......................................................................................................5-18
5.4.3 Power Cable for the DCDU-01............................................................................................................5-20
5.4.4 Power Cable for the BBU.....................................................................................................................5-21
5.4.5 Power Cable for the Fan Box...............................................................................................................5-21
5.4.6 Power Cable for the RFU.....................................................................................................................5-22
5.4.7 Power Cable for the GATM.................................................................................................................5-23
5.5 BTS3900 Transmission Cable.......................................................................................................................5-24
5.5.1 Transmission Cable Connections.........................................................................................................5-24
5.5.2 E1/T1 Cable..........................................................................................................................................5-25
5.5.3 FE/GE Cable........................................................................................................................................5-27
5.6 BTS3900 Signal Cable..................................................................................................................................5-28
5.6.1 Monitoring Signal Cable Connections.................................................................................................5-29
5.6.2 Monitoring Signal Cable for the PMU.................................................................................................5-325.6.3 Monitoring Signal Cable for the PSU (DC/DC)..................................................................................5-33
5.6.4 In-Position Signal Cable for the PSU (DC/DC)...................................................................................5-34
5.6.5 Monitoring Signal Cable for the Fan Box............................................................................................5-35
5.6.6 Fan Box Cascade Signal Cable............................................................................................................5-36
5.6.7 Monitoring Signal Cable for the EMU.................................................................................................5-36
5.6.8 Monitoring Signal Cable for the GATM..............................................................................................5-37
5.6.9 BBU Alarm Cable................................................................................................................................5-38
5.6.10 GPS Clock Signal Cable....................................................................................................................5-40
5.6.11 Signal Cable for the ELU...................................................................................................................5-40
5.7 BTS3900 CPRI Electrical Cable...................................................................................................................5-41
5.7.1 CPRI Electrical Cable Connections of the BTS3900...........................................................................5-41
5.7.2 CPRI Electrical Cable..........................................................................................................................5-45
5.8 BTS3900 RF Cable.......................................................................................................................................5-45
5.8.1 RF Cable Connections of the BTS3900...............................................................................................5-45
5.8.2 RF Jumper............................................................................................................................ ................5-53
5.8.3 Inter-RFU RF Signal Cable..................................................................................................................5-54
5.8.4 QMA Cable..........................................................................................................................................5-54
6 BTS3900 Auxiliary Equipment................................................................................................6-1
6.1 PS4890 Cabinet...............................................................................................................................................6-2
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6.2 EMU................................................................................................................................................................6-2
6.3 DDF.................................................................................................................................................................6-3
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Figures
Figure 2-1BTS3900 cabinet................................................................................................................................ 2-1
Figure 2-2The dimensions of the BTS3900 cabinet............................................................................................2-2
Figure 3-1Module configurations in the BTS3900 (-48 V DC) cabinet............................................................. 3-2
Figure 3-2Module configurations in the BTS3900 (+24 V DC) cabinet............................................................ 3-3
Figure 3-3Module configurations in the BTS3900 (AC) cabinet........................................................................3-3
Figure 3-4Typical configuration of the Structure of the vehicle-mounted cabinet......................................... ....3-4
Figure 3-5Slots of the BBU3900 ........................................................................................................................3-6
Figure 3-6Typical configuration of the BBU3900..............................................................................................3-7
Figure 3-7Two BTS3900 (-48 V DC) cabinets installed side by side.................................................................3-8
Figure 3-8Two BTS3900 (+24 V DC) cabinets installed side by side................................................................3-8
Figure 3-9Two BTS3900 (AC) cabinets installed side by side...........................................................................3-9
Figure 3-10Two stacked BTS3900 (-48 V DC) cabinets..................................................................................3-10
Figure 3-11Two stacked BTS3900 (AC) cabinets............................................................................................3-11
Figure 3-12Special configuration......................................................................................................................3-12Figure 3-13Power distribution of the BTS3900 (-48 V DC) cabinet................................................................3-14
Figure 3-14Power distribution of the BTS3900 (+24 V DC) cabinet...............................................................3-15
Figure 3-15Power distribution of the BTS3900 (AC) cabinet..........................................................................3-15
Figure 3-16Slot assignment for the UPEU and UEIU......................................................................................3-16
Figure 3-17Monitoring system for the BTS3900 cabinet (-48 V DC)..............................................................3-18
Figure 3-18Monitoring system for the BTS3900 cabinet (+24 V DC).............................................................3-19
Figure 3-19Monitoring system for the BTS3900 cabinet (AC)........................................................................3-19
Figure 3-20Customized alarms collected by the UPEU or UEIU.....................................................................3-21
Figure 3-21Customized alarms collected by the EMU.....................................................................................3-21
Figure 4-1BBU3900............................................................................................................................................4-2
Figure 4-2The position of the ESN (1)................................................................................................................4-3
Figure 4-3The position of the ESN (2)................................................................................................................4-3
Figure 4-4Slots of the BBU3900 ........................................................................................................................4-4
Figure 4-5Typical configuration of the BBU3900..............................................................................................4-5
Figure 4-6GTMU panel.......................................................................................................................................4-5
Figure 4-7GTMUb panel.....................................................................................................................................4-5
Figure 4-8Panel of the UPEUA.........................................................................................................................4-11
Figure 4-9Panel of the UPEUB.........................................................................................................................4-11
Figure 4-10Slots in the BBU.............................................................................................................................4-12
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Figure 4-11Panel of the UEIU...........................................................................................................................4-13
Figure 4-12Panel of the FAN unit.....................................................................................................................4-14
Figure 4-13Panel of the USCUb1 (0.5 U).........................................................................................................4-15
Figure 4-14Panel of the USCUb2 (1 U)............................................................................................................4-15
Figure 4-15Panel of the UTRP..........................................................................................................................4-17
Figure 4-16DIP switches on the UTRP.............................................................................................................4-19
Figure 4-17Panel of the DRFU of 900 MHz.....................................................................................................4-21
Figure 4-18Panel of the DRFU of 1800 MHz...................................................................................................4-22
Figure 4-19Logical structure of the DRFU.......................................................................................................4-23
Figure 4-20GRFU panel....................................................................................................................................4-26
Figure 4-21Logical structure of the GRFU.......................................................................................................4-27
Figure 4-22Panel of the DCDU-01...................................................................................................................4-30
Figure 4-23Fan unit...........................................................................................................................................4-31
Figure 4-24Fan..................................................................................................................................................4-32
Figure 4-25FMU panel......................................................................................................................................4-32
Figure 4-26GATM panel...................................................................................................................................4-34
Figure 4-27ELU................................................................................................................................................4-35
Figure 4-28Power equipment (DC/DC)............................................................................................................4-36
Figure 4-29Panel of the PSU (DC/DC).............................................................................................................4-37
Figure 4-30Power Subrack (DC/DC)................................................................................................................4-39
Figure 4-31Power equipment (AC/DC)............................................................................................................4-40
Figure 4-32PMU................................................................................................................................................4-41
Figure 4-33Front panel of the PMU..................................................................................................................4-42Figure 4-34Right panel of the PMU..................................................................................................................4-44
Figure 4-35Panel of the PSU (AC/DC).............................................................................................................4-44
Figure 4-36Panel of the power subrack (AC/DC).............................................................................................4-46
Figure 5-1PGND cable for the cabinet................................................................................................................5-8
Figure 5-2PGND cable for the modules..............................................................................................................5-9
Figure 5-3Equipotential cable.............................................................................................................................5-9
Figure 5-4Power cables connections of a single cabinet...................................................................................5-10
Figure 5-5Power cable connections of two cabinets in side-by-side installation..............................................5-11
Figure 5-6Power cable connections of two cabinets in stack installation.........................................................5-13
Figure 5-7Power cable connections of a single cabinet....................................................................................5-14
Figure 5-8Power cable connections of two cabinets in side-by-side installation..............................................5-15
Figure 5-9Power cable connections of a single cabinet....................................................................................5-16
Figure 5-10Power cable connections of two cabinets in side-by-side installation............................................5-17
Figure 5-11-48 V power cable...........................................................................................................................5-18
Figure 5-12+24 V power cable..........................................................................................................................5-19
Figure 5-13AC power cable (220 V AC, single-phase)....................................................................................5-19
Figure 5-14Power cable for the DCDU-01.......................................................................................................5-20
Figure 5-15Power cable for the BBU................................................................................................................5-21
Figure 5-16Power cable for the fan box............................................................................................................5-22
Figures
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Figure 5-17Power cable for the RFU................................................................................................................5-22
Figure 5-18Power cable for the GATM............................................................................................................5-23
Figure 5-19E1/T1 transmission cable connections...........................................................................................5-24
Figure 5-20FE/GE transmission cable connections..........................................................................................5-25
Figure 5-21E1/T1 cable.....................................................................................................................................5-25
Figure 5-22FE/GE cable....................................................................................................................................5-28
Figure 5-23Monitoring signal cable connections of the BTS3900 (-48 V DC)................................................5-30
Figure 5-24Monitoring signal cable connections of the BTS3900 (+24 V DC)...............................................5-31
Figure 5-25Signal cable connections of the BTS3900 (AC).............................................................................5-32
Figure 5-26Monitoring signal cable for the PMU.............................................................................................5-33
Figure 5-27Monitoring signal cable for the PSU (DC/DC)..............................................................................5-34
Figure 5-28In-position signal cable for the PSU (DC/DC)...............................................................................5-34
Figure 5-29Monitoring signal cable for the fan box.........................................................................................5-35
Figure 5-30Fan box cascade signal cable..........................................................................................................5-36
Figure 5-31Monitoring signal cable for the EMU.............................................................................................5-37
Figure 5-32Monitoring signal cable for the GATM..........................................................................................5-38
Figure 5-33BBU alarm cable............................................................................................................................5-39
Figure 5-34GPS clock signal cable...................................................................................................................5-40
Figure 5-35Signal cable for the ELU................................................................................................................5-41
Figure 5-36CPRI electrical cable connections (1).............................................................................................5-42
Figure 5-37CPRI electrical cable connections (2).............................................................................................5-43
Figure 5-38CPRI electrical cable connections (3).............................................................................................5-44
Figure 5-39CPRI electrical cable......................................................................................................................5-45Figure 5-40RF cable connections of a single cabinet........................................................................................5-46
Figure 5-41RF cable connections of a single cabinet........................................................................................5-46
Figure 5-42RF cable connections of two cabinets in side-by-side installation.................................................5-47
Figure 5-43RF cable connections of two cabinets in side-by-side installation.................................................5-48
Figure 5-44RF cable connections of stacked cabinets......................................................................................5-49
Figure 5-45Connections of RF cables for DRFUs (1800 MHz) in a single cabinet (1)....................................5-50
Figure 5-46Connections of RF cables for DRFUs (1800 MHz) in a single cabinet (2)....................................5-51
Figure 5-47Connections of RF cables for DRFUs (1800 MHz) in a single cabinet (3)....................................5-52
Figure 5-48Connections of RF cables for DRFUs (1800 MHz) in a single cabinet (4)....................................5-53
Figure 5-49RF jumper.......................................................................................................................................5-54
Figure 5-50Inter-RFU RF signal cable..............................................................................................................5-54
Figure 5-51Structure of the QMA cable............................................................................................................5-55
Figure 6-1Cable connections between the BTS3900 and the PS4890...................................... ..........................6-2
Figure 6-2Structure of the DDF..........................................................................................................................6-3
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Tables
Table 3-1Components of the cabinet...................................................................................................................3-4
Table 3-2Board configuration principles of the BBU3900.................................................................................3-6
Table 3-3Applicable AC input voltage ranges..................................................................................................3-12
Table 3-4Applicable DC input voltage ranges..................................................................................................3-13
Table 3-5Recommended configuration of circuit breakers and connections of power cables..........................3-13
Table 3-6Ports on the UPEU and UEIU............................................................................................................3-16
Table 3-7Configuration of monitoring boards in the BTS3900........................................................................3-20
Table 4-1Board configuration principles of the BBU3900.................................................................................4-4
Table 4-2LEDs on the GTMU.............................................................................................................................4-6
Table 4-3LEDs and their status...........................................................................................................................4-7
Table 4-4Ports on the GTMU..............................................................................................................................4-8
Table 4-5Details of the DIP Switch S1...............................................................................................................4-9
Table 4-6Details of the DIP Switch S2...............................................................................................................4-9
Table 4-7Details of the DIP Switch S4...............................................................................................................4-9Table 4-8Details of the DIP Switch S5.............................................................................................................4-10
Table 4-9LED on the UPEU and its status........................................................................................................4-12
Table 4-10Ports on the panel of the UPEU.......................................................................................................4-12
Table 4-11Ports on the panel of the UEIU........................................................................................................4-14
Table 4-12LED on the FAN unit and its status.................................................................................................4-15
Table 4-13LEDs on the USCU..........................................................................................................................4-16
Table 4-14LEDs on the TOD port.....................................................................................................................4-17
Table 4-15Ports on the USCU...........................................................................................................................4-17
Table 4-16LEDs on the panel of the UTRP......................................................................................................4-18
Table 4-17Ports on the panel of the UTRP........................................................................................................4-19
Table 4-18Settings of SW1 on the UTRP.........................................................................................................4-19
Table 4-19Settings of SW2 on the UTRP.........................................................................................................4-20
Table 4-20Settings of SW3 on the UTRP.........................................................................................................4-20
Table 4-21Status of the LEDs on the DRFU.....................................................................................................4-24
Table 4-22Ports and sockets on the DRFU.......................................................................................................4-25
Table 4-23LEDs on the GRFU panel................................................................................................................4-28
Table 4-24Ports on the GRFU panel.................................................................................................................4-29
Table 4-25Ports, terminals, and power switches on the panel of the DCDU-01...............................................4-31
Table 4-26LEDs on the FMU............................................................................................................................4-33
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Table 4-27Ports on the FMU.............................................................................................................................4-33
Table 4-28LEDs on the GATM.........................................................................................................................4-34
Table 4-29Ports and socket on the GATM........................................................................................................4-35
Table 4-30Components of the power equipment (DC/DC)...............................................................................4-36
Table 4-31LEDs on the panel of the PSU (DC/DC)......................................................................................... 4-38
Table 4-32Ports and terminals on the power subrack (DC/DC)........................................................................4-39
Table 4-33Components of the power equipment (AC/DC)...............................................................................4-40
Table 4-34Ports and switch on the PMU...........................................................................................................4-42
Table 4-35LEDs on the panel of the PMU........................................................................................................4-43
Table 4-36LEDs on the panel of the PSU (AC/DC)......................................................................................... 4-45
Table 4-37Terminals and switch on the power subrack (AC/DC)....................................................................4-46
Table 5-1PGND Cables and Power Cables.........................................................................................................5-3
Table 5-2Transmission Cables............................................................................................................................5-5
Table 5-3CPRI Cables.........................................................................................................................................5-6
Table 5-4Signal Cables........................................................................................................................................5-6
Table 5-5RFCables.............................................................................................................................................5-8
Table 5-6Power cables of a single cabinet........................................................................................................ 5-11
Table 5-7Power cables of two cabinets in side-by-side installation..................................................................5-11
Table 5-8Power cables of two cabinets in stack installation.............................................................................5-14
Table 5-9Power cables of a single cabinet........................................................................................................ 5-14
Table 5-10Power cables of two cabinets in side-by-side installation................................................................5-15
Table 5-11Power cables of a single cabinet...................................................................................................... 5-16
Table 5-12Power cables of two cabinets in side-by-side installation................................................................5-17Table 5-13-48 V power cable............................................................................................................................5-18
Table 5-14+24 V power cable...........................................................................................................................5-19
Table 5-15220 V power cable........................................................................................................................... 5-20
Table 5-16Power cable for the DCDU-01.........................................................................................................5-21
Table 5-17Pin assignment of the power cable for the BBU..............................................................................5-21
Table 5-18Pin assignment for the wires of the power cable for the fan box.....................................................5-22
Table 5-19Pin assignment for the wires of the power cable for the RFU......................................................... 5-23
Table 5-20Pin assignment for the wires of the power cable for the GATM..................................................... 5-24
Table 5-21E1/T1 transmission cable connections.............................................................................................5-24
Table 5-22FE/GE transmission cable connections............................................................................................5-25
Table 5-23Connectors of the 75-ohm E1 coaxial cable.....................................................................................5-26
Table 5-24Pin assignment for the wires of the 75-ohm E1 coaxial cable.........................................................5-26
Table 5-25Pin assignment for the wires of the 120-ohm E1 twisted pair cable................................................5-27
Table 5-26Pin assignment for the wires of the FE/GE cable............................................................................ 5-28
Table 5-27Monitoring signal cable connections of the BTS3900 (-48 V DC)................................................. 5-30
Table 5-28Monitoring signal cable connections of the BTS3900 (+24 V DC).................................................5-31
Table 5-29Signal cable connections of the BTS3900 (AC)..............................................................................5-32
Table 5-30Pin assignment for the wires of the monitoring signal cable for the PMU......................................5-33
Table 5-31Pin assignment for the wires of the in-position signal cable for the PSU (DC/DC)........................5-34
Tables
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Table 5-32Pin assignment for the wires of the monitoring signal cable for the fan box...................................5-35
Table 5-33Pin assignment of the fan box cascade signal cable.........................................................................5-36
Table 5-34Pin assignment for the wires of the monitoring signal cable for the EMU......................................5-37
Table 5-35Pin assignment for the wires of the monitoring signal cable for the GATM...................................5-38
Table 5-36Pin assignment for the wires of the BBU alarm cable.....................................................................5-39
Table 5-37Pin assignment for the wires of the signal cable for the ELU..........................................................5-41
Table 5-38CPRI electrical cables (1).................................................................................................................5-42
Table 5-39CPRI electrical cables (2).................................................................................................................5-43
Table 5-40CPRI electrical cables (3).................................................................................................................5-44
Table 5-41RF cables of a single cabinet............................................................................................................5-46
Table 5-42RF cables of a single cabinet............................................................................................................5-47
Table 5-43RF cables of two cabinets in side-by-side installations...................................................................5-47
Table 5-44RF cables of two cabinets in side-by-side installation.....................................................................5-48
Table 5-45RF cables of stacked cabinets..........................................................................................................5-49
Table 5-46Connections of RF cables (1)...........................................................................................................5-50
Table 5-47Connections of RF cables (2)...........................................................................................................5-51
Table 5-48Connections of RF cables (3)...........................................................................................................5-52
Table 5-49Connections of RF cables (4)...........................................................................................................5-53
Table 6-1Cables between the BTS3900 and the PS4890....................................................................................6-2
Table 6-2Technical specifications of the DDF....................................................................................................6-4
BTS3900 GSM
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1Changesin the BTS3900 GSM HardwareDescription
This chapter describes the changes in theBTS3900 GSM Hardware Description.
10 (2010-10-30)
This the ninth commercial release.
Compared with issue 09 (2010-09-03), no information is added.
Compared with issue 09 (2010-09-03), this issue incorporates the following changes:
Contents Change Description
About This Document The version number changes from V300R012
to V100R012.
2 Exterior of the BTS3900 Cabinet The dimensions of the cabinet are added.
Compared with issue 09 (2010-09-03), no information is deleted.
09 (2010-09-03)
This is the eighth commercial release.
Compared with issue 08 (2010-07-30), this issue is added with the following topics:
l 3 BTS3900 Hardware Configuration
l 3.2 Combinations of Cabinets
l 3.3 Power System of the BTS3900
l 3.4 BTS3900 Monitoring System
Compared with issue 08 (2010-07-30), no information is modified.
Compared with issue 08 (2010-07-30), no information is deleted.
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08 (2010-07-30)
This is the seventh commercial release.
Compared with issue 07 (2010-06-30), this issue is added with the following topic:
l 6.3 DDF
Compared with issue 07 (2010-06-30), no information is modified.
Compared with issue 07 (2010-06-30), no information is deleted.
07 (2010-06-30)
This is the sixth commercial release.
Compared with issue 06 (2010-05-10), no information is added.
Compared with issue 06 (2010-05-10), no information is modified.
Compared with issue 06 (2010-05-10), the issue deletes the information about the SLPU, UELP,
UFLP, and USLP2.
06 (2010-05-10)
This is the fifth commercial release.
Compared with issue 05 (2010-04-10), no information is added.
Compared with issue 05 (2010-04-10), there are some editorial changes.
Compared with issue 05 (2010-04-10), no information is deleted.
05 (2010-04-10)
This is the fourth commercial release.
Compared with issue 04 (2010-03-15), this issue is added with the following topic:
l UTRP is added, refer to UTRP.
Compared with issue 04 (2010-03-15), no information is modified.
Compared with issue 04 (2010-03-15), no information is deleted.
04 (2010-03-15)This is the third commercial release.
Compared with issue 03 (2009-12-30), this issue is added with the following topic:
l RF cable connections of DRFUs (1800 MHz) are added, refer to 5.8.1 RF Cable
Connections of the BTS3900.
Compared with issue 03 (2009-12-30), no information is modified.
Compared with issue 03 (2009-12-30), no information is deleted.
03 (2009-12-30)
This is the second commercial release.
1 Changes in the BTS3900 GSM Hardware Description
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Compared with issue 02 (2009-09-30), this issue is added with the following topic:
l The description of vehicle-mounted cabinet is added, refer to 3.1.1 Module
Configurations in the Cabinet.
Compared with issue 02 (2009-09-30), no information is modified.
Compared with issue 02 (2009-09-30), no information is deleted.
02 (2009-09-30)
This is the first commercial release.
Compared with issue 01(2009-07-15), no information is added.
Compared with issue 01(2009-07-15), this issue incorporates the following changes:
Contents Change Description
GTMU The description of GTMU is changed.
USCU The description of USCU is changed.
Compared with issue 01 (2009-07-15), no information is deleted.
01 (2009-07-15)
This is the draft release.
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2Exterior of the BTS3900 CabinetThe BTS3900 cabinet is designed in compliance with the IEC297 standard. It is a vertical cabinet.
Figure 2-1shows the BTS3900 cabinet.
Figure 2-1BTS3900 cabinet
Figure 2-2shows the dimensions of the BTS3900 cabinet.
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Figure 2-2The dimensions of the BTS3900 cabinet
2 Exterior of the BTS3900 Cabinet
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3BTS3900 Hardware ConfigurationAbout This Chapter
This section describes the cabinet, power system, transmission system, CPRI port, and
monitoring system configurations of the BTS3900, and provides reference for planning and
deploying theBTS3900.
3.1 Board and Module Configurations
This chapter describes the configuration principles of the boards and modules in the cabinet.
3.2 Combinations of Cabinets
The BTS3900 cabinets can be stacked or installed side by side. The side-by-side installation
mode is recommended. If the space in the equipment room is insufficient, the stack mode can
be used.
3.3 Power System of the BTS3900
The BTS3900 supports 110 V AC, 220 V AC, and -48 V DC power supplies. When AC power
is supplied, the power is converted to -48 V DC power for the base station.
3.4 BTS3900Monitoring System
The BTS3900 monitoring system monitors all boards and components in the cabinet. If any
board or component is faulty, an alarm is reported automatically. The alarm signals are collected
both inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can be
monitored.
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3.1 Board and Module Configurations
This chapter describes the configuration principles of the boards and modules in the cabinet.
3.1.1 Module Configurations in the Cabinet
The BTS3900 cabinet uses a modular design. The main components of the cabinet are the
BBU3900, RFU, DCDU-01, and fan box. The power equipment (DC/DC) and power equipment
(AC/DC) are optional components of the cabinet.
3.1.2 Board Configuration of the BBU3900
This section describes the board configuration principles of the BBU3900.
3.1.1 Module Configurations in the Cabinet
The BTS3900 cabinet uses a modular design. The main components of the cabinet are the
BBU3900, RFU, DCDU-01, and fan box. The power equipment (DC/DC) and power equipment
(AC/DC) are optional components of the cabinet.
There are three types of BTS3900 cabinets, namely, the BTS3900 (-48 V DC) cabinet, BTS3900
(+24 V DC) cabinet, and BTS3900 (AC) cabinet.
Figure 3-1Module configurations in the BTS3900 (-48 V DC) cabinet
(1) RFU (2) Fan box (3) Air inlet
(4) BBU3900 (5) DCDU-01 -
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Figure 3-2Module configurations in the BTS3900 (+24 V DC) cabinet
(1) RFU (2) Fan box (3) Air inlet
(4) BBU3900 (5) DCDU-01 (6) Power equipment (DC/DC)
Figure 3-3Module configurations in the BTS3900 (AC) cabinet
(1) RFU (2) Fan box (3) Air inlet
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(4) BBU3900 (5) DCDU-01 (6) Power equipment (AC/DC)
A vehicle-mounted cabinet supports only an input of -48 V DC. There is a redundant space of3U. Figure 3-4shows the typical configuration of the Structure of the vehicle-mounted cabinet.
Figure 3-4Typical configuration of the Structure of the vehicle-mounted cabinet
NOTE
The RF module inside a cabinet that is carried by a car is configured with only the GRFU.
Table 3-1describes the components of the cabinet.
Table 3-1Components of the cabinet
Module Optional/ Mandatory
MaximumNumber ofModulesConfigured
in a SingleCabinet
Remarks
RFU Optional 6 The RFU performs modulation and
demodulation between baseband signals and
RF signals, processes data, and combines and
divides signals.
Filler
panel
Optional 6 To ensure proper ventilation of the cabinet, the
slot in the RFU subrack that is not installed
with an RFU must be installed with a filler
panel.
Fan box Mandatory 1 The fan dissipates the heat in the cabinet.
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Module Optional/ Mandatory
MaximumNumber ofModulesConfigured
in a SingleCabinet
Remarks
BBU3900 Optional 1 The BBU3900 processes the baseband signals
and enables interaction between the base
station and the BSC or RNC.
DCDU-01 Mandatory 1 The DCDU-01 provides DC power to each
component of the cabinet.
Power
equipment
(DC/DC)
Optional 1 The power equipment (DC/DC) converts
external +24 V DC power into -48 V DC power
and provides power to the components of the
cabinet.
Power
equipment
(AC/DC)
Optional 1 The power equipment (AC/DC) converts
external 220 V AC single-phase, 220 V AC
three-phase, and 110 V AC dual-live-wire
power into -48 V DC power and provides
power to the components of the cabinet.
None - - l There is a 3 U idle space in the BTS3900
(-48 V DC) cabinet for customer
equipment.
The optional devices must meet the
requirement of working in the ambienttemperature of not lower than +55C.
The BTS3900 (-48 V DC) cabinet does
not supply power to optional
transmission devices from the
customer.
l There is no idle space in the BTS3900 (+24
V DC) cabinet.
l There is no idle space in the BTS3900 (AC)
cabinet.
3.1.2 Board Configuration of the BBU3900
This section describes the board configuration principles of the BBU3900.
Slots of the BBU3900
Figure 3-5shows the slots of the BBU3900.
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Figure 3-5Slots of the BBU3900
Board Configuration of the BBU3900
Table 3-2describes the board configuration principles of the BBU3900.
Table 3-2Board configuration principles of the BBU3900
Board Optional/ Mandatory
MaximumNumber
Slot Restriction
GTMU Mandatory 1 slot 5 or slot 6 Can be installed
only in the slot 6
(inhabited in
slots 5 and 6).
FAN Mandatory 1 slot 16 Can be installed
only in the slot
16.
UPEU Mandatory 2 slot 18 and slot19 When a singleUPEU is
configured, it is
preferentially
installed in the
slot 19.
UEIU Optional 1 slot 18 -
UTRP Optional 1 slot 0 or slot 4 Preferentially
installed in the
slot 4.
USCU Optional 1 slot 1 -
NOTE
UTRP is supported in V100R012 and later versions.
Figure 3-6shows the typical configuration of the BBU3900.
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Figure 3-6Typical configuration of the BBU3900
3.2 Combinations of Cabinets
The BTS3900 cabinets can be stacked or installed side by side. The side-by-side installationmode is recommended. If the space in the equipment room is insufficient, the stack mode can
be used.
Side-by-Side Installation Mode
The principles for installing two cabinets side by side are as follows:
l By default, the primary cabinet is positioned on the left, and the secondary cabinet is
positioned on the right. If restricted by the actual situation in the equipment room, the
primary cabinet canbe positioned onthe right.
l The BTS3900 (-48 V DC) cabinet, BTS3900 (+24 V DC) cabinet, and BTS3900 (AC)
cabinet support side-by-side installation mode.NOTE
l The primary cabinet is the cabinet that is configured with the BBU.
l The secondary cabinet is the cabinet that is not configured with the BBU.
Figure 3-7, Figure 3-8, and Figure 3-9show the side-by-side installation mode with two
cabinets.
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Figure 3-7Two BTS3900 (-48 V DC) cabinets installed side by side
Figure 3-8Two BTS3900 (+24 V DC) cabinets installed side by side
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Figure 3-9Two BTS3900 (AC) cabinets installed side by side
Stack Mode
The principles for stacking two cabinets are as follows:
l By default, the primary cabinet is stacked under the secondary cabinet.
l The BTS3900 (-48 V DC) cabinets can be stacked.
l The BTS3900 (+24 V DC) cabinets cannot be stacked.
l The stacking of the BTS3900 (AC) cabinets is not recommended. If cabinets are stacked,
the highest operating temperature of the cabinets is 50C.
Figure 3-10and Figure 3-11show the stack mode with two cabinets.
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Figure 3-10Two stacked BTS3900 (-48 V DC) cabinets
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Figure 3-12Special configuration
3.3 Power System of the BTS3900
The BTS3900 supports 110 V AC, 220 V AC, and -48 V DC power supplies. When AC power
is supplied, the power is converted to -48 V DC power for the base station.
Table 3-3and Table 3-4list the input voltage ranges supported by the BTS3900.
Table 3-3Applicable AC input voltage ranges
Power Input Type Rated Voltage Working Voltage
220 V AC single-phase 220 V AC to 240 V AC 176 V AC to 290 V AC
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Power Input Type Rated Voltage Working Voltage
220 V AC three-phase 220 V AC to 240 V AC 176 V AC to 290 V AC
110 V AC dual-live-wire 100 V AC to 120 V AC 90 V AC to 135 V AC
Table 3-4Applicable DC input voltage ranges
Power Input Type Rated Voltage
-48 V DC -38.4 V DC to -57 V DC
+24 V DC 21.6 V DC to 29 V DC
3.3.1 Configuration of Circuit Breakers and Connections of Power Cables for the BTS3900
This section lists the recommended configuration of circuit breakers and connections of power
cables for the BTS3900. The recommended configurations are all based on a fully configured
base station, which has the peak output power. The power requirements for the customer
equipment in the cabinet are also included.
3.3.2 Power Distribution of the BTS3900
This section describes the power distribution modes of the BTS3900.
3.3.1 Configuration of Circuit Breakers and Connections of Power
Cables for the BTS3900This section lists the recommended configuration of circuit breakers and connections of power
cables for the BTS3900. The recommended configurations are all based on a fully configured
base station, which has the peak output power. The power requirements for the customer
equipment in the cabinet are also included.
Table 3-5lists the recommended configuration of circuit breakers and connections of power
cables for theBTS3900.
Table 3-5Recommended configuration of circuit breakers and connections of power cables
Power Input Type Requirements for
Circuit Breakerson CustomerEquipment
Cross-Sectional
Area of PowerCables
Length of Power
Cables
-48 V DC 1 x 80 A 16 mm2 15 m
+24 V DC 1 x 160 A or 2 x 100
A2 x 25 mm2 15 m
220 V AC single-
phase
1 x 63 A or 1 x 50 A
(both using a two-
level magnetic
circuit breaker)
6 mm2 40 m
110 V AC dual-live-
wire
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Power Input Type Requirements forCircuit Breakerson CustomerEquipment
Cross-SectionalArea of PowerCables
Length of PowerCables
220 V AC three-
phase
1 x 25 A or 1 x 32 A
(both using a three-
level magnetic
circuit breaker)
2.5 mm2 40 m
NOTE
All power cables must comply with local standards.
3.3.2 Power Distribution of the BTS3900
This section describes the power distribution modes of the BTS3900.
Power Distribution of the BTS3900 (-48 V DC) Cabinet
The external power equipment supplies -48 V DC power to the DCDU-01 of the BTS3900 (-48
V DC) cabinet, and the DCDU-01 feeds power to each module in the BTS3900 cabinet. Figure
3-13shows the power distribution principles.
Figure 3-13Power distribution of the BTS3900 (-48 V DC) cabinet
NOTE
MCB: miniature circuit breaker
Power Distribution of the BTS3900 (+24 V DC) Cabinet
The external power equipment supplies +24 V DC power to the power equipment (DC/DC) ofthe BTS3900 (+24 V DC) cabinet. The power equipment (DC/DC) converts +24 V DC power
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into -48 V DC power and feeds -48 V DC power to the DCDU-01. The DCDU-01 feeds power
to each module in the cabinet. Figure 3-14shows the power distribution principles.
Figure 3-14Power distribution of the BTS3900 (+24 V DC) cabinet
Power Distribution of the BTS3900 (AC) Cabinet
The external power equipment supplies 220 V AC single-phase or three-phase power, or 110 V
AC dual-live-wire power to the BTS3900 (AC) cabinet. The power equipment (AC/DC) convertsthe AC power into -48 V DC power and feeds the -48 V DC powerto the DCDU-01. The
DCDU-01 feeds power to each module in the cabinet. Figure 3-15shows the power distribution
principles.
Figure 3-15Power distribution of the BTS3900 (AC) cabinet
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3.4 BTS3900 Monitoring System
The BTS3900 monitoring system monitors all boards and components in the cabinet. If anyboard or component is faulty, an alarm is reported automatically. The alarm signals are collected
both inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can be
monitored.
3.4.1 BBU Monitoring Port
3.4.2 Configuration of the Monitoring System
The BTS3900 cabinet is managed by the monitoring boards, such as the FMU and PMU. A
monitoring board is connected to the MON port on the BBU. It collects the alarms of all
components and reports the alarms to the BBU through the RS485 serial bus.
3.4.3 Customized Alarm Inputs
Customized alarms must be reported to the BBU.
3.4.1 BBU Monitoring Port
The BBU houses the UPEU and UEIU for monitoring. Each board has two Boolean input ports
and two RS485 input ports, and each Boolean input port receives four Boolean inputs. Figure
3-16shows the slot assignment for the UPEU and UEIU.
Figure 3-16Slot assignment for the UPEU and UEIU
Table 3-6lists the ports on the UPEU and UEIU.
Table 3-6Ports on the UPEU and UEIU
Slot Board Label Connector Quantity DescriptionSlot19 UPEU EXT-ALM0 RJ-45
connector
1 Port for
Boolean
inputs 8 to 11
EXT-ALM1 RJ-45
connector
1 Port for
Boolean
inputs 12 to
15
MON0 RJ-45
connector
1 Port for
RS485 input
0
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Slot Board Label Connector Quantity Description
MON1 RJ-45
connector
1 Port for
RS485 input
1
Slot18 UEIU
(optional)
EXT-ALM0 RJ-45
connector
1 Port for
Boolean
inputs 0 to 3
EXT-ALM1 RJ-45
connector
1 Port for
Boolean
inputs 4 to 7
MON0 RJ-45
connector
1 Port for
RS485 input
0
MON1 RJ-45
connector
1 Port for
RS485 input
1
3.4.2 Configuration of the Monitoring System
The BTS3900 cabinet is managed by the monitoring boards, such as the FMU and PMU. A
monitoring board is connected to the MON port on the BBU. It collects the alarms of all
components and reports the alarms to the BBU throughthe RS485 serial bus.
l For details about the monitoring ports on the FMU, see 4.5.2 FMU. The FMU is configured
in the BTS3900 cabinet (-48 V DC), BTS3900 cabinet (+24 V DC),and BTS3900 cabinet
(AC). For details about the position of the FMU in the cabinet, see 3.1.1 Module
Configurations in the Cabinetand 4.5 Fan Unit.
l For details about the monitoring ports on the PMU, see 4.9.2 PMU. The PMU is configured
in the BTS3900 cabinet (AC). For details about the position of the PMU in the cabinet, see
3.1.1 Module Configurations in the Cabinet.
Monitoring Principle for the BTS3900 Cabinet (-48 V DC)
A maximum of three BTS3900 cabinets can be configured for a single site. The monitoring
system described in this part is applicable to the configuration of three cabinets. If there is only
one cabinet at the site, neglect cabinet 1 and cabinet 2 and their cable connections. If there are
two cabinets at the site, neglect cabinet 2 and its cable connection. If any device in the figure is
not configured at the site, neglect the device and its cable connection.
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Figure 3-17Monitoring system for the BTS3900 cabinet (-48 V DC)
Monitoring System for the BTS3900 Cabinet (+24 V DC)
The BTS3900 cabinet (+24 V DC) is configured with the DC/DC power system. The alarms
reported include dry contact alarms. The ALM ports on the two cabinets are connected to the
same dry contact alarm port through interconnection terminals. The monitoring system for theBTS3900 cabinet (+24 V DC) are shown in Figure 3-18.
A maximum of two BTS3900 cabinets can be configured for a single site. The monitoring system
described in this part is applicable to the configuration of two cabinets. If there is only one cabinet
at the site, neglect cabinet 1 and its cable connection. If any device in the figure is not configured
at the site, neglect the device and its cable connection.
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Figure 3-18Monitoring system for the BTS3900 cabinet (+24 V DC)
Monitoring System for the BTS3900 Cabinet (AC)
The monitoring system for the BTS3900 cabinet (AC) configured with the PMU is shown in
Figure 3-19.
A maximum of two BTS3900 cabinets can be configured for a single site. The monitoring system
described in this part is applicable to the configuration of two cabinets. If there is only one cabinet
at the site, neglect cabinet 1 and its cable connection. If any device in the figure is not configured
at the site, neglect the device and its cable connection.
Figure 3-19Monitoring system for the BTS3900 cabinet (AC)
NOTE
For details about the monitoring of the EMU, see the description of Customized Alarm Inputs.
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3.4.3 Customized Alarm Inputs
Customized alarms must be reported to the BBU.
Customized alarms are reported to the BBU by any of the following methods:
l The alarms are collected by the UPEU or UEIU in the BBU.
l The alarms are collected by the EMU.
For details about the configuration of the customized alarms, see the related initial configuration
guide.
Monitoring Board Configuration
The configurations of the monitoring boards in the BTS3900 depend on the number of
customized alarms, as listed in Table 3-7.
Table 3-7Configuration of monitoring boards in the BTS3900
Cabinet Type Number of Dry ContactAlarm Inputs
Monitoring Board
-48 V DC cabinet
AC cabinet
None UPEU
1 to 16 UPEU+UEIU
17 to 32 UPEU+UEIU+EMU
+24 V DC cabinet None UPEU
1 to 16 UPEU+UEIU+EMU
17 to 32
NOTE
l If power backup is required for the BBU, two UPEUs are configured instead of a UPEU and a UEIU.
l If three BTS3900 cabinets are configured, only one UEIU is required to monitor both RS485 and dry
contact alarms.
l Analog values can be monitored only by the EMU.
l The EMU with sensors can be configured according to site requirements.
Customized Alarms Collected by the UPEU or UEIU
Each UPEU or UEIU in the BBU supports eight Boolean signal inputs. A UPEU and a UEIU
or a maximum of two UPEUs can be configured for a BBU to receive 16 Boolean signal inputs.
This method can be used for the configuration of fewer than 16 customized alarm inputs. The
method to collect customized alarms using the UPEU or UEIU is shown in Figure 3-20.
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Figure 3-20Customized alarms collected by the UPEU or UEIU
Customized Alarms Collected by the EMU
If there are more than 16 Boolean signal inputs, the EMU can be configured for the BTS3900.
Each EMU supports 32 Boolean signal inputs and two RS485 signal inputs, the cable connections
are shown in Figure 3-21.
l The cable connection of the EMU in the BTS3900 cabinet (-48 V DC) and BTS3900 cabinet
(+24 V DC): The EMU is connected to the MON1 port on the UPEU in the BBU.
l The cable connection of the EMU in the BTS3900 cabinet (AC): The EMU is connected
to the right RS232/RS422 port on the PMU in the AC/DC power system.
Figure 3-21Customized alarms collected by the EMU
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4BTS3900 ComponentsAbout This Chapter
This section describes the BTS3900 components, which are the BBU, DCDU-01, Fan Box, RFU,
GATM, EMU, ELU, power system, and PS4890 components.
4.1 BBU3900Equipment
The BBU3900 is used for baseband processing and enables interaction between the BTS and
the BSC.
4.2 DRFU
The Double Radio Frequency Unit (DRFU) is a dual-density RF unit. A DRFU processes two
carriers.
4.3 GRFU
The GSM Radio Frequency Unit (GRFU) is designed on the basis of multi-transceiver
technology. One GRFUsupports 6 carriers outputs.
4.4 DCDU-01
The Direct Current Distribution Unit-01 (DCDU-01) supplies DC power to each component in
the cabinet.
4.5 Fan Unit
A fan unit contains a fan subrack, four fans, and an FMU.
4.6 GATMThe GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.
4.7 ELU
The Electronic Label Unit (ELU) reports the cabinet type information to the fan box.
4.8 Power Equipment (DC/DC)
The power equipment (DC/DC) converts +24 V DC power into -48 V DC power.
4.9 Power Equipment (AC/DC)
The power equipment (AC/DC) converts 220 V AC power into -48 V DC power.
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4.1 BBU3900 Equipment
The BBU3900 is used for baseband processing and enables interaction between the BTS and
the BSC.
The primary functions of the BBU3900 are as follows:
l Provides physical ports for the communication between the BTS and the BSC
l Provides CPRI ports for the communication with the RF modules
l Provides USB ports for downloading the BTS software
l Provides the OM channel for connection with the webLMT or the M2000
l Processes uplink and downlink data
l Provides centralized management system on the entire DBS system, such as OM and signal
processing
l Provides the reference clock for the system
4.1.1 Exterior of the BBU3900
The BBU3900, which has a case structure, is 19 inches wide and 2 U high.
4.1.2 Boards and Module of the BBU3900
This section describes the boards and module of the BBU3900 in terms of their functions, ports,
LEDs, and DIP switches.
4.1.1 Exterior of the BBU3900
The BBU3900, which has a case structure, is 19 inches wide and 2 U high.
The dimensions (W x D x H) of the BBU3900 are 442 mm x 310 mm x 86 mm. Figure 4-1
shows the BBU3900.
Figure 4-1BBU3900
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The Electronic Serial Number (ESN) is unique to a network element (NE) for identification, and
is used during the commissioning of the base station.
l If there is a label on the FAN unit of the BBU, the ESN is printed on a label and the mounting
ears of the BBU. Figure 4-2shows the position of the ESN.
Figure 4-2The position of the ESN (1)
l If there is no label on the FAN unit of the BBU, the ESN is printed on the mounting ears
of the BBU. Figure 4-3shows the position of the ESN.
Figure 4-3The position of the ESN (2)
4.1.2 Boards and Module of the BBU3900
This section describes the boards and module of the BBU3900 in terms of their functions, ports,
LEDs, and DIP switches.
Board Configuration of the BBU3900
This section describes the board configuration principles of the BBU3900.
Slots of the BBU3900
Figure 4-4shows the slots of the BBU3900.
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