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BTS3900 GSM

V300R008

Hardware Description

Issue 03

Date 2008-07-15

Part Number

Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd

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Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any

assistance, please contact our local office or company headquarters.

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]

Copyright Huawei Technologies Co., Ltd. 2008. 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.

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and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

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 the statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

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Contents

About This Document.....................................................................................................................1

1 System Architecture of the BTS3900......................................................................................1-1

2 BTS3900 Cabinet.........................................................................................................................2-1

2.1 Appearance of the BTS3900 Cabinet..............................................................................................................2-2

2.2 Structure of the BTS3900 Cabinet..................................................................................................................2-2

2.2.1 Structure of the BTS3900 -48 V Cabinet...............................................................................................2-3

2.2.2 Structure of the BTS3900 +24 V Cabinet..............................................................................................2-5

2.2.3 Structure of the BTS3900 220 V Cabinet..............................................................................................2-7

3 Cable Connections of the BTS3900.........................................................................................3-1

3.1 Power Cable Connections of the BTS3900.....................................................................................................3-2

3.1.1 Power Cable Connections of the BTS3900 -48 V Cabinet....................................................................3-2

3.1.2 Power Cable Connections of the BTS3900 +24 V Cabinet...................................................................3-5

3.1.3 Power Cable Connections of the BTS3900 220 V Cabinet...................................................................3-8

3.2 Signal Cable Connections of the BTS3900...................................................................................................3-12

3.2.1 Signal Cable Connections of a Single BTS3900 Cabinet....................................................................3-12

3.2.2 Signal Cable Connections of Stacked BTS3900 Cabinets...................................................................3-18

3.3 Transmission Cable Connections of the BTS3900.......................................................................................3-31

3.4 RF Cable Connections of the BTS3900........................................................................................................3-35

4 BTS3900Components................................................................................................................4-1

4.1 List of BTS3900 Components.........................................................................................................................4-3

4.2 BBU3900 Equipment......................................................................................................................................4-3

4.2.1 Appearance of the BBU3900.................................................................................................................4-4

4.2.2 Engineering Specifications of the BBU.................................................................................................4-4

4.2.3 Boards and Modules of the BBU3900...................................................................................................4-5

4.3 DRFU............................................................................................................................................................4-15

4.4 DCDU-01......................................................................................................................................................4-19

4.5 GATM...........................................................................................................................................................4-21

4.6 FAN Unit.......................................................................................................................................................4-23

4.7 EMU..............................................................................................................................................................4-25

4.8 Power Subrack (AC/DC)...............................................................................................................................4-25

4.8.1 PMU.....................................................................................................................................................4-25

4.8.2 PSU (AC/DC).......................................................................................................................................4-30

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4.8.3 Wiring Unit of the Power Subrack (220 V).........................................................................................4-31

4.9 Power Subrack (DC/DC)...............................................................................................................................4-32

4.9.1 PSU (DC/DC).......................................................................................................................................4-32

4.9.2 Wiring Unit of the Power Subrack (+24 V).........................................................................................4-34

5 BTS3900 Cables...........................................................................................................................5-1

5.1 List of the BTS3900 Cables............................................................................................................................5-2

5.2 BTS3900 Power Cables and PGND Cables....................................................................................................5-5

5.2.1 BTS3900 PGND Cable..........................................................................................................................5-6

5.2.2 BTS3900 Equipotential Cable................................................................................................................5-7

5.2.3 BTS3900 -48 V Input Power Cable.......................................................................................................5-8

5.2.4 BTS3900 +24 V Input Power Cable......................................................................................................5-9

5.2.5 BTS3900 220 V Input Power Cable.....................................................................................................5-10

5.2.6 Power Cable Between the PSU (AC/DC) and the DCDU...................................................................5-11

5.2.7 Power Cable Between the PSU (DC/DC) and the DCDU...................................................................5-12

5.2.8 Power Cable Between the DCDU and the DRFU................................................................................5-13

5.2.9 Power Cable Between the DCDU and the GATM...............................................................................5-15

5.2.10 Power Cable Between the DCDU and the FAN Unit........................................................................5-16

5.2.11 Power Cable Between the DCDU and the BBU................................................................................5-17

5.3 BTS3900 Transmission Cables.....................................................................................................................5-18

5.3.1 E1 Cable...............................................................................................................................................5-19

5.3.2 E1 Surge Protection Transfer Cable.....................................................................................................5-21

5.3.3 CPRI Cable...........................................................................................................................................5-22

5.3.4 Signal Cable Between the Cascaded DRFUs.......................................................................................5-22

5.4 BTS3900 Signal Cables................................................................................................................................5-23

5.4.1 Monitoring Signal Cables for the DCDU-01.......................................................................................5-24

5.4.2 In-Position Signal Cable for the PSU (DC/DC)...................................................................................5-25

5.4.3 Monitoring Signal Cable for the PMU.................................................................................................5-26

5.4.4 Monitoring Signal Cable for the EMU.................................................................................................5-27

5.4.5 Monitoring Signal Cable for the GATM..............................................................................................5-28

5.4.6 BBU Alarm Cable................................................................................................................................5-29

5.4.7 RET Control Signal Cable....................................................................................................................5-29

5.4.8 Monitoring Signal Cable for the FAN Unit.........................................................................................5-30

5.4.9 Signal Cable Between the Cascaded FAN Units.................................................................................5-31

5.5 BTS3900 RF Cables......................................................................................................................................5-31

5.5.1 RF Jumper............................................................................................................................................5-32

5.5.2 Inter-DRFU RF Signal Cable...............................................................................................................5-32

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Figures

Figure 1-1BTS3900 system.................................................................................................................................1-1

Figure 2-1Appearance of the BTS3900 cabinet..................................................................................................2-2

Figure 2-2Typical configurations of the BTS3900 -48 V cabinet.......................................................................2-4

Figure 2-3Typical configurations of the BTS3900 +24 V cabinet......................................................................2-6

Figure 2-4Typical configurations of the BTS3900 220 V cabinet......................................................................2-8

Figure 3-1Power cable connections of a single -48 V cabinet............................................................................3-2

Figure 3-2Power cable connections of two stacked cabinets..............................................................................3-4

Figure 3-3Power cable connections of a single +24 V cabinet...........................................................................3-5

Figure 3-4Power cable connections of two stacked cabinets..............................................................................3-7

Figure 3-5Power cable connections of a single 220 V cabinet...........................................................................3-9

Figure 3-6Power cable connections of two stacked cabinets............................................................................3-11

Figure 3-7Signal Cable Connections in a -48 V Cabinet (1)............................................................................3-13

Figure 3-8Signal cable connections in a -48 V cabinet (2)...............................................................................3-14

Figure 3-9Signal cable connections in a +24 V cabinet (1)..............................................................................3-15

Figure 3-10Signal cable connections in a +24 V cabinet (2)............................................................................3-16

Figure 3-11Signal cable connections in a 220 V cabinet (1).............................................................................3-17

Figure 3-12Signal cable connections in a 220 V cabinet (2).............................................................................3-18

Figure 3-13Signal cable connections of stacked cabinets (1)...........................................................................3-20





Figure 3-18Signal cable connections of stacked cabinets (6)...........................................................................3-30Figure 3-19Transmission cable connections of a single cabinet (1).................................................................3-32

Figure 3-20Transmission cable connections of a single cabinet (2).................................................................3-33

Figure 3-21Transmission cable Connections of two stacked cabinets..............................................................3-34

Figure 3-22RF cable connections of a single cabinet........................................................................................3-36

Figure 3-23RF cable connections of two stacked cabinets...............................................................................3-37

Figure 4-1BBU3900............................................................................................................................................4-4

Figure 4-2Panel of the UEIU...............................................................................................................................4-6

Figure 4-3GTMU panel.......................................................................................................................................4-7

Figure 4-4Panel of the UELP............................................................................................................................4-11

Figure 4-5DIP switch on the UELP..................................................................................................................4-12

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Figure 4-6Panel of the UBFA...........................................................................................................................4-13

Figure 4-7Panel of the UPEA............................................................................................................................4-14

Figure 4-8Panel of the UPEB............................................................................................................................4-14

Figure 4-9DRFU panel......................................................................................................................................4-16

Figure 4-10Functional structure of the DRFU..................................................................................................4-17

Figure 4-11Appearance of the DCDU-01.........................................................................................................4-20

Figure 4-12Working principles of the DCDU-01.............................................................................................4-21

Figure 4-13GATM panel...................................................................................................................................4-22

Figure 4-14Panel of the FAN unit.....................................................................................................................4-23

Figure 4-15Ports on the front panel of the PMU...............................................................................................4-26

Figure 4-16Ports on the rear panel of the PMU................................................................................................4-26

Figure 4-17DIP switch on the PMU..................................................................................................................4-29

Figure 4-18Panel...............................................................................................................................................4-30

Figure 4-19Power subrack (AC/DC).................................................................................................................4-32

Figure 4-20Panel...............................................................................................................................................4-33

Figure 4-21Power subrack (DC/DC).................................................................................................................4-34

Figure 5-1PGND cable........................................................................................................................................5-7

Figure 5-2Equipotential cable.............................................................................................................................5-8

Figure 5-3-48 V input power cable..................................................................................................................... 5-8

Figure 5-4+24 V Input power cable....................................................................................................................5-9

Figure 5-5220 V Input power cable..................................................................................................................5-10

Figure 5-6Power cable between the PSU (AC/DC) and the DCDU.................................................................5-11

Figure 5-7Power cable between the PSU (DC/DC) and the DCDU.................................................................5-12Figure 5-8Power cable between the DCDU and the DRFU..............................................................................5-14

Figure 5-9Power cable between the DCDU and the GATM.............................................................................5-15

Figure 5-10Power cable between the DCDU and the FAN unit.......................................................................5-16

Figure 5-11Power cable between the DCDU and the BBU..............................................................................5-18

Figure 5-12E1 cable..........................................................................................................................................5-19

Figure 5-13E1 surge protection transfer cable..................................................................................................5-21

Figure 5-14CPRI cable......................................................................................................................................5-22

Figure 5-15Signal cable between cascaded DRFUs..........................................................................................5-23

Figure 5-16Monitoring signal cable 1 for the DCDU-01..................................................................................5-24

Figure 5-17Monitoring signal cable 2 for the DCDU-01..................................................................................5-24

Figure 5-18In-position signal cable for the PSU (DC/DC)...............................................................................5-25

Figure 5-19Monitoring signal cable for the PMU.............................................................................................5-26

Figure 5-20Monitoring signal cable for the EMU.............................................................................................5-27

Figure 5-21Monitoring signal cable for the GATM..........................................................................................5-28

Figure 5-22BBU alarm cable............................................................................................................................5-29

Figure 5-23RET control signal cable................................................................................................................5-30

Figure 5-24Monitoring signal cable for the FAN unit......................................................................................5-30

Figure 5-25Signal cable between the cascaded FAN units...............................................................................5-31

Figure 5-26RF jumper.......................................................................................................................................5-32

Figures

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Figure 5-27Inter-DRFU RF signal cable...........................................................................................................5-33

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Tables

Table 3-1Power cable connections of a single -48 V cabinet..............................................................................3-3

Table 3-2Power cable connections of two stacked cabinets................................................................................3-5

Table 3-3Power cable connections of a single +24 V cabinet.............................................................................3-6

Table 3-4Power cable connections of two stacked cabinets................................................................................3-8

Table 3-5Power cable connections of a single 220 V cabinet.............................................................................3-9

Table 3-6Power cable connections of two stacked cabinets..............................................................................3-12

Table 3-7Signal cable connections in a -48 V cabinet (1).................................................................................3-13

Table 3-8Signal cable connections in a -48 V cabinet (2).................................................................................3-14

Table 3-9Signal cable connections in a +24 V cabinet (1)................................................................................3-15

Table 3-10Signal cable connections in a +24 V cabinet (2)..............................................................................3-16

Table 3-11Signal cable connections in a 220 V cabinet (1)..............................................................................3-17

Table 3-12Signal cable connections in a 220 V cabinet (2)..............................................................................3-18

Table 3-13Signal cable connections of stacked cabinets (1).............................................................................3-21






Table 3-19Transmission cable connections of a single cabinet (1)...................................................................3-32

Table 3-20Transmission cable connections of a single cabinet (2)...................................................................3-33

Table 3-21Transmission cable Connections of two stacked cabinets...............................................................3-35

Table 3-22RF cable connections of a single cabinet.........................................................................................3-36

Table 3-23RF cable connections of two stacked cabinets.................................................................................3-38Table 4-1Component List....................................................................................................................................4-3

Table 4-2Mechanical dimensions of the BBU....................................................................................................4-4

Table 4-3Weight of the BBU...............................................................................................................................4-5

Table 4-4Power input of the BBU.......................................................................................................................4-5

Table 4-5Ports on the UEIU................................................................................................................................4-6

Table 4-6LEDs on the GTMU.............................................................................................................................4-7

Table 4-7Ports on the GTMU panel....................................................................................................................4-8

Table 4-8Settings of S1.....................................................................................................................................4-10

Table 4-9Settings of S2.....................................................................................................................................4-10

Table 4-10Settings of S4...................................................................................................................................4-10

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Table 4-11Settings of S5...................................................................................................................................4-11

Table 4-12Ports on the UELP............................................................................................................................4-12

Table 4-13DIP switch on the UELP..................................................................................................................4-12

Table 4-14LED on the UBFA...........................................................................................................................4-14

Table 4-15LED on the UPEU............................................................................................................................4-15

Table 4-16Ports on the UPEU...........................................................................................................................4-15

Table 4-17LEDs on the DRFU panel................................................................................................................4-18

Table 4-18Ports on the DRFU panel.................................................................................................................4-19

Table 4-19Ports on the DCDU-01 panel...........................................................................................................4-21

Table 4-20LEDs on the GATM panel...............................................................................................................4-22

Table 4-21Ports on the GATM..........................................................................................................................4-23

Table 4-22LEDs on the panel of the FAN unit.................................................................................................4-24

Table 4-23Ports on the panel of the FAN unit...................................................................................................4-24

Table 4-24Ports on the PMU.............................................................................................................................4-27

Table 4-25LEDs on the PMU............................................................................................................................4-27

Table 4-26Settings of the DIP switch................................................................................................................4-29

Table 4-27Meaning............................................................................................................................................4-31

Table 4-28LEDs................................................................................................................................................4-33

Table 5-1Cable list...............................................................................................................................................5-2

Table 5-2Installation positions of the cabinet PGND cable................................................................................5-7

Table 5-3Installation positions of the internal PGND cables..............................................................................5-7

Table 5-4Installation positions of the equipotential cable...................................................................................5-8

Table 5-5Installation positions of the -48 V input power cable..........................................................................5-9Table 5-6Installation positions of the +24 V input power cable.........................................................................5-9

Table 5-7Specifications of the 220 V input power cable..................................................................................5-10

Table 5-8Installation positions of the 220 V input power cable........................................................................5-10

Table 5-9Installation positions of the power cable between the PSU (AC/DC) and the DCDU in the 220 V cabinet

.............................................................................................................................................................................5-12

Table 5-10Installation positions of the power cable between the PSU (AC/DC) and the DCDU in the -48 V cabinet

.............................................................................................................................................................................5-12

Table 5-11Installation positions of the power cable between the PSU (DC/DC) and the DCDU in the +24 V cabinet

.............................................................................................................................................................................5-13

Table 5-12Installation positions of the power cable between the PSU (DC/DC) and the DCDU in the -48 V cabinet.............................................................................................................................................................................5-13

Table 5-13Pin assignment of the power cable between the DCDU and the DRFU..........................................5-14

Table 5-14Installation positions of the power cable between the DCDU and the DRFU.................................5-14

Table 5-15Pin assignment of the power cable between the DCDU and the GATM.........................................5-16

Table 5-16Installation positions of the power cable between the DCDU and the GATM................................5-16

Table 5-17Pin assignment of the power cable between the DCDU and the FAN unit.....................................5-17

Table 5-18Installation positions of the power cable between the DCDU and the FAN unit............................5-17

Table 5-19Pin assignment of the power cable between the DCDU and the BBU............................................5-18

Table 5-20Installation positions of the power cable between the DCDU and the BBU...................................5-18

Table 5-21Pin assignment for the wires of the 75-ohm E1 coaxial cable.........................................................5-19

Tables

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Table 5-22Pin assignment for the wires of the 120-ohm E1 twisted pairs........................................................5-20

Table 5-23Pin assignment for wires of the E1 surge protection transfer cable.................................................5-21

Table 5-24Pin assignment of the monitoring signal cable 1 for the DCDU-01................................................5-24

Table 5-25Pin assignment of the in-position signal cable for the PSU (DC/DC).............................................5-25

Table 5-26Pin assignment of the monitoring signal cable for the PMU...........................................................5-26

Table 5-27Pin assignment of the monitoring signal cable for the EMU...........................................................5-27

Table 5-28Pin assignment of the monitoring signal cable for the GATM........................................................5-28

Table 5-29Pin assignment for the wires of the BBU alarm cable.....................................................................5-29

Table 5-30Pin assignment of the monitoring signal cable for the FAN unit.....................................................5-30

Table 5-31Pin assignment of the signal cable between the cascaded FAN units..............................................5-31

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About This Document

Purpose

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 (hereinafter referred to as

BTS3900)

V300R008

Intended Audience

This document is intended for:

l BTS installers

l Site maintainers

Change History

For changes in the document, refer to Changes in BTS3900 GSM Hardware Description.

Organization

1 System Architecture of the BTS3900

The BTS3900 consists of the BBU3900, the DRFUs, and the indoor macro cabinet. The

BBU3900 and the DRFUs are installed in the indoor macro cabinet.

2 BTS3900 Cabinet

The BTS3900 cabinet is designed in compliance with the IEC297 standard and features a

modular structure. It processes the baseband signals and the RF signals.

3 Cable Connections of the BTS3900

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The cable connections of the BTS3900 involve the connections of the power cables, signal

cables, transmission cables, and RF cables.

4 BTS3900 Components

The BTS3900 components are the BBU, DRFU, DCDU-01, GATM, PMU, PSU, and FAN unit.

5 BTS3900 Cables

The BTS3900 cables consist of the power cables, signal cables, transmission cables, and RF

cables.

Conventions

1. Symbol Conventions

The following symbols may be found in this document. They are defined as follows

Symbol Description

DANGER

Indicates a hazard with a high level of risk that, if not avoided,

will result in death or serious injury.

WARNING

Indicates a hazard with a medium or low level of risk which, if

not avoided, could result in minor or moderate injury.

CAUTION

Indicates a potentially hazardous situation that, if not avoided,

could cause equipment damage, data loss, and performancedegradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save your

time.

NOTE Provides additional information to emphasize or supplement

important points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. For

example,log in as user root.

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions

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Boldface The keywords of a command line are in boldface.

ItalicCommand 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 | ... ] * Alternative items are grouped in braces and separated by vertical

bars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


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 .

5. Keyboard Operation


Key Press the key.For example,press Enterand press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+A

means the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

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.

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Action Description

Drag Press and hold the primary mouse button and move the pointer

to a certain position.

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1System Architecture of the BTS3900The BTS3900 consists of the BBU3900, the DRFUs, and the indoor macro cabinet. The

BBU3900 and the DRFUs are installed in the indoor macro cabinet.

Figure 1-1shows the BTS3900 system.

Figure 1-1BTS3900 system

DRFU

Indoor cabinet

BBU

The BTS3900 mainly consists of the following components:

l The BBU3900 is used for baseband processing and enables interaction between the BTS

and the BSC.

l The DRFU is a double radio filter unit that processes two carriers. The DRFU performs

modulation and demodulation between baseband signals and RF signals, processes data,

and combines and divides signals.

l The indoor macro cabinet houses the BBU3900 and DRFUs. In addition, the indoor macro

cabinet provides the functions such as power distribution, heat dissipation, and surge

protection.

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2BTS3900 CabinetAbout This Chapter

The BTS3900 cabinet is designed in compliance with the IEC297 standard and features a

modular structure. It processes the baseband signals and the RF signals.

Based on the types of external power input, the BTS3900 cabinets can be classified as follows:

l The BTS3900 -48 V cabinet: contains the DRFU, BBU, GATM, DCDU-01, and FAN unit.

l The BTS3900 +24 V cabinet: contains the DRFU, BBU, DCDU-01, FAN unit, and power

subrack (DC/DC).

l The BTS3900 220 V cabinet: contains the DRFU, BBU, DCDU-01, FAN unit, and power

subrack (AC/DC).

2.1 Appearance of the BTS3900 Cabinet

The BTS3900 cabinet is designed in compliance with the IEC297 standard. It is purple gray in

color and vertical in appearance.

2.2 Structure of the BTS3900 Cabinet

The BTS3900 cabinet supports three types of power input: -48 V DC, +24 V DC, and 220 V

AC. The cabinets that support different types of input power are different in structure, mainly

in power distribution unit.

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2.1 Appearance of the BTS3900 Cabinet

The BTS3900 cabinet is designed in compliance with the IEC297 standard. It is purple gray in

color and vertical in appearance.

Figure 2-1shows the BTS3900 cabinet.

Figure 2-1Appearance of the BTS3900 cabinet

2.2 Structure of the BTS3900 Cabinet

The BTS3900 cabinet supports three types of power input: -48 V DC, +24 V DC, and 220 V

AC. The cabinets that support different types of input power are different in structure, mainly

in power distribution unit.

2.2.1 Structure of the BTS3900 -48 V Cabinet

The external power input to the BTS3900 -48 V cabinet is -48 V DC. The DC power is directly

led into the DCDU-01 and the DCDU-01 distributes the DC power to each component in the

cabinet. The BTS3900 -48 V cabinet can be installed alone or stacked on top of another BTS3900

-48 V cabinet.

2.2.2 Structure of the BTS3900 +24 V Cabinet

The external power input to the BTS3900 +24 V cabinet is +24 V DC. After the PSU (DC/DC)

transforms +24 V DC into -48 V DC, the DCDU-01 distributes the -48 V DC power to each

component in the cabinet. The BTS3900 +24 V cabinet can be installed alone or stacked with a

BTS3900 -48 V cabinet.

2.2.3 Structure of the BTS3900 220 V Cabinet

The external power input to the BTS3900 220 V cabinet is 220 V AC. After the PSU (AC/DC)transforms 220 V AC into -48 V DC, the DCDU-01 distributes the -48 V DC power to each

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component in the cabinet. The BTS3900 220 V cabinet can be installed alone or stacked with a


2.2.1 Structure of the BTS3900 -48 V Cabinet

The external power input to the BTS3900 -48 V cabinet is -48 V DC. The DC power is directly

led into the DCDU-01 and the DCDU-01 distributes the DC power to each component in the

cabinet. The BTS3900 -48 V cabinet can be installed alone or stacked on top of another BTS3900

-48 V cabinet.

The BTS3900 -48 V cabinet contains the following components: the DRFU, BBU, GATM,

DCDU-01, and FAN unit, among which the GATM is optional. Figure 2-2shows the typical

configurations when the cabinet is installed alone and when one cabinet is stacked on another.

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Figure 2-2Typical configurations of the BTS3900 -48 V cabinet

One cabinet Two cabinets in stack mode

(1) DRFU (2) FAN unit

(3) GATM (4) BBU

(5) DCDU-01 -

NOTE

When two BTS3900 -48 V cabinets are installed in stack mode, the BBU is installed only in the lowercabinet and serves as the baseband control unit for the two cabinets.

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2.2.2 Structure of the BTS3900 +24 V Cabinet

The external power input to the BTS3900 +24 V cabinet is +24 V DC. After the PSU (DC/DC)

transforms +24 V DC into -48 V DC, the DCDU-01 distributes the -48 V DC power to each

component in the cabinet. The BTS3900 +24 V cabinet can be installed alone or stacked with aBTS3900 -48 V cabinet.

The BTS3900 +24 V cabinet contains the following components: the DRFU, BBU, DCDU-01,

PSU (DC/DC), and FAN unit. Figure 2-3shows the typical configurations when the cabinet is

installed alone and when one cabinet is stacked on another.

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Figure 2-3Typical configurations of the BTS3900 +24 V cabinet


(1) DRFU (2) FAN unit (3) BBU

(4) DCDU-01 (5) Wiring unit (6) PSU (DC/DC)

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NOTE

l When the two cabinets are stacked, the BTS3900 -48 V cabinet should be stacked on top of the +24 V

cabinet.

l When the -48 V cabinet is stacked on the +24 V cabinet, a maximum of nine DRFUs can be configured.

l When two cabinets are stacked, the BBU is installed only in the lower cabinet and serves as the baseband

control unit for the two cabinets.

2.2.3 Structure of the BTS3900 220 V Cabinet

The external power input to the BTS3900 220 V cabinet is 220 V AC. After the PSU (AC/DC)

transforms 220 V AC into -48 V DC, the DCDU-01 distributes the -48 V DC power to each

component in the cabinet. The BTS3900 220 V cabinet can be installed alone or stacked with a


The BTS3900 220 V cabinet contains the following components: the DRFU, BBU, DCDU-01,

PMU, PSU (AC/DC), and FAN unit. Figure 2-4shows the typical configurations when the

cabinet is installed alone and when one cabinet is stacked on another.

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Figure 2-4Typical configurations of the BTS3900 220 V cabinet


(1) DRFU (2) FAN unit (3) BBU

(3) DCDU-01 (5) PSU (AC/DC) (6) PMU

(7) Wiring unit - -

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NOTE

l When the two cabinets are stacked, the BTS3900 -48 V cabinet should be stacked on top of the +24 V

cabinet.

l When the -48 V cabinet is stacked on the 220 V cabinet, a maximum of nine DRFUs can be configured.

l When two cabinets are stacked, the BBU is installed only in the lower cabinet and serves as the baseband

control unit for the two cabinets.

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3Cable Connections of the BTS3900About This Chapter

The cable connections of the BTS3900 involve the connections of the power cables, signal

cables, transmission cables, and RF cables.

3.1 Power Cable Connections of the BTS3900

The BTS3900 cabinet supports three types of external power input: -48 V DC, +24 V DC, and

220 V AC. Therefore, the BTS3900 involves three types of power cable connections.

3.2 Signal Cable Connections of the BTS3900

The signal cable connections of the BTS3900 involve the connections of the signal cables for a

single cabinet and for two stacked cabinets.

3.3 Transmission Cable Connections of the BTS3900

The transmission cable connections of the BTS3900 involve the connections of the E1 cable,

E1 surge protection transfer cable, CPRI cable, and signal cable between cascaded DRFUs. The

E1 surge protection transfer cable is required only when the UELP is configured.

3.4 RF CableConnections of the BTS3900

The RF cableconnections of the BTS3900 involve the connections of the RF cables of a single

cabinet and the RF cables of stacked cabinets.

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3.1 Power Cable Connections of the BTS3900The BTS3900 cabinet supports three types of external power input: -48 V DC, +24 V DC, and

220 V AC. Therefore, the BTS3900 involves three types of power cable connections.

3.1.1 Power Cable Connections of the BTS3900 -48 V Cabinet

The power cables for the BTS3900 -48 V cabinet are classified into two types: the external input

power cable and the internal power cable.

3.1.2 Power Cable Connections of the BTS3900 +24 V Cabinet

The power cables for the BTS3900 +24 V cabinet are classified into two types: the external input


3.1.3 Power Cable Connections of the BTS3900 220 V Cabinet

The power cables for the BTS3900 220 V cabinet are classified into two types: the external input


3.1.1 Power Cable Connections of the BTS3900 -48 V Cabinet

The power cables for the BTS3900 -48 V cabinet are classified into two types: the external input


Power Cable Connections of a Single Cabinet

Figure 3-1shows the power cable connections of a single -48 V cabinet.

Figure 3-1Power cable connections of a single -48 V cabinet

I NSI DE OUT SI DE

UEL P

RTN(+)

NEG(-)

INP UT

P10

P9

P1

P3 P4 P5 P6 P7 P8

P2P3

P4

P5

P6

P7

P8

P9

P10

P11

P12


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Table 3-1describes the power cable connections of a single cabinet.

Table 3-1Power cable connections of a single -48 V cabinet

Category Cable Number Cable Name Quantity

External input

power cable

P1-P2 5.2.3 BTS3900 -48 V Input Power

Cable

2

Internal power

cables

P3-P8 5.2.8 Power Cable Between the

DCDU and the DRFU

6

P9 5.2.10 Power Cable Between the

DCDU and the FAN Unit

1


DCDU and the BBU

1

P11-P12 Reserved 2

Power Cable Connections of Two Stacked Cabinets

Figure 3-2shows the power cable connections of two stacked -48 V cabinets.

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Figure 3-2Power cable connections of two stacked cabinets

I NSI DE OUT SI DE

UEL P

P17

P18

P19

P20

P21

P22

P23

P24

P15

P16

P1

P5 P6 P7 P8 P9 P10

P11

P12

P2

P15 P16 P17 P18 P19 P20

P21

P4P3

P7

P8

P9

P10

P11

P12

P13

P14

P5

P6

Table 3-2shows the power cable connections of two stacked -48 V cabinets.


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Table 3-2Power cable connections of two stacked cabinets


External input

power cable

P1-P2, P3-P4 5.2.3 BTS3900 -48 V Input Power

Cable

4

Internal power

cables

P5-P10, P15-P20 5.2.8 Power Cable Between the

DCDU and the DRFU

12

P11P21 5.2.10 Power Cable Between the


2


DCDU and the BBU

1

P13-P14, P22-P24 Reserved 5

3.1.2 Power Cable Connections of the BTS3900 +24 V Cabinet

The power cables for the BTS3900 +24 V cabinet are classified into two types: the external input



Figure 3-3shows the power cable connections of a single +24 V cabinet.

Figure 3-3Power cable connections of a single +24 V cabinet

I NSI DE OUT SI DE

UEL P

P1

P14

P7

P8

P9

P10

P11

P12

P13

P14

P15

P16

P2

P3P4

P5

P6

P7 P9 P11P10 P12

P13

P8

P5P6

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Table 3-3Power cable connections of a single +24 V cabinet


External

input power

cables

P1-P4 5.2.4 BTS3900 +24 V Input

Power Cable

4

Internal

power cables

P5-P6 5.2.7 Power Cable Between

the PSU (DC/DC) and the

DCDU

2


the DCDU and the DRFU

6

P13 5.2.10 Power Cable Between

the DCDU and the FAN Unit

1

P14 5.2.11 Power Cable Between

the DCDU and the BBU

1

P15-P16 Reserved 2

NOTE

One pair of external +24V power cables cannot provide sufficient power for the components in the cabinet;

therefore, two pairs of external +24 V power cables are used.


Figure 3-4shows the power cable connections when a -48 V cabinet is stacked on a +24 V

cabinet.


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INSIDE OUTSIDE

UEL P

P1P2P3P4

P5P6P7

P8

P17

P18

P9

P9 P10 P11 P12 P13 P14

P16

P15

P10

P11

P12

P13

P14

P15

P16

P27

P28

P19

P20

P21

P22

P23

P24

P25

P26

P5

P19 P20 P21

P25

P8

P6P7

Table 3-4describes the power cable connections of two stacked cabinets.

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External

input powercables

P1-P4 5.2.4 BTS3900 +24 V Input

Power Cable

4

Internal

power cables


the PSU (DC/DC) and the

DCDU

4

P9-P14, P19-P21 5.2.8 Power Cable Between

the DCDU and the DRFU

9

P15, P25 5.2.10 Power Cable Between

the DCDU and the FAN Unit

2

P16 5.2.11 Power Cable Betweenthe DCDU and the BBU

1

P17-P18, P22-P24, P26-

P28

Reserved 8

NOTE

One pair of external +24 V power cables cannot provide sufficient power for the components in the cabinet;

therefore, two pairs of external +24 V power cables are used.

3.1.3 Power Cable Connections of the BTS3900 220 V Cabinet

The power cables for the BTS3900 220 V cabinet are classified into two types: the external input



Figure 3-5shows the power cable connections of a single 220 V cabinet.


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Figure 3-5Power cable connections of a single 220 V cabinet

RUN ALM -4 8 V 0 V

BAT

RS232/RS422

ACINPU T

DCOUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT.

LOAD2(-)

R TN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

P1 P3P4

P4

P5 P6 P7 P8 P9 P10

P11

P12

P3

P2

P7

P8

P9

P10

P11

P12

P13

P14

P5

P6


Table 3-5Power cable connections of a single 220 V cabinet


External input

power cable

P1-P2 5.2.5 BTS3900 220 V Input Power

Cable

2

Internal power

cables


PSU (AC/DC) and the DCDU

2


DCDU and the DRFU

6



1


DCDU and the BBU

1

P13-P14 Reserved 2

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Figure 3-6shows the power cable connections when the -48 V cabinet is stacked on the 220 V

cabinet.


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RUN ALM -4 8 V 0 V

BAT

RS232/RS422

AC

INPU T

DC

OUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT.

LOAD2(-)

RTN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

P1 P2 P3

P3

P4

P4

P7 P8 P9 P10 P11 P12

P13

P14

P5P6

P17 P18 P19

P23

P5P6

P7

P8

P9

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

P24

P25

P26

Table 3-6describes the power cable connections of two stacked cabinets.

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Externalinput power

cable

P1-P2 5.2.5 BTS3900 220 V Input PowerCable

2

Internal

power cables

P3-P6 5.2.6 Power Cable Between the PSU

(AC/DC) and the DCDU

4

P7-P12, P17-P19 5.2.8 Power Cable Between the

DCDU and the DRFU

9

P13, P23 5.2.10 Power Cable Between the


2

P14 5.2.11 Power Cable Between theDCDU and the BBU

1

P15-P16, P20-P22, P24-

P26

Reserved 8

3.2 Signal Cable Connections of the BTS3900

The signal cable connections of the BTS3900 involve the connections of the signal cables for a

single cabinet and for two stacked cabinets.

3.2.1 Signal Cable Connections of a Single BTS3900 Cabinet

The signal cable connections of a single BTS3900 cabinet involve signal cable connections in

a -48 V cabinet, in a +24 V cabinet, and in a 220 V cabinet.

3.2.2 Signal Cable Connections of Stacked BTS3900 Cabinets

The signal cable connections of stacked BTS3900 cabinets involve the signal cable connections

when a -48 V cabinet, a +24 V cabinet, or a 220 V cabinet is stacked with another -48 V cabinet.

3.2.1 Signal Cable Connections of a Single BTS3900 Cabinet

The signal cable connections of a single BTS3900 cabinet involve signal cable connections in

a -48 V cabinet, in a +24 V cabinet, and in a 220 V cabinet.

Signal Cable Connections in a -48 V Cabinet

Figure 3-7shows the signal cable connections in a -48 V cabinet when only one UPEU is

configured.


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Figure 3-7Signal Cable Connections in a -48 V Cabinet (1)

I NSI DE OUT SI DE

UEL P

RTN(+)

NEG(-)

INP UT

RS232

RS485

EMU

S2

S2

S4

S4

S3

S3

S5

S5

S1

S1

NOTE

The GATM and EMU in Figure 3-7, Figure 3-8, Figure 3-9, Figure 3-10, Figure 3-11, and Figure

3-12are optional. The GATM can be installed in the cabinet. If there is no enough space in the cabinet,

the GATM can be installed in spare space of other equipment. The EMU can be installed on a wall.

Table 3-7describes the signal cables in a -48 V cabinet.

Table 3-7Signal cable connections in a -48 V cabinet (1)

Cable Number Cable Name Quantity

S1 5.4.1 Monitoring Signal Cables for the DCDU-01 1

S2, S5 5.4.5 Monitoring Signal Cable for the GATM 2

S3 5.4.8 Monitoring Signal Cable for the FAN Unit 1

S4 5.4.4 Monitoring Signal Cable for the EMU 1

Figure 3-8shows the signal cable connections in a -48 V cabinet when two UPEUs or one UPEU

plus one UEIU are configured.

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Figure 3-8Signal cable connections in a -48 V cabinet (2)

I NSI DE OUT SI DE

UEL P

RTN(+)

NEG(-)INP UT

RS232

RS485

EMU

S1S3

S4S5

S4

S5

S2

S2

S3

S1

Table 3-8describes the signal cable connections in a -48 V cabinet.

Table 3-8Signal cable connections in a -48 V cabinet (2)






Signal Cable Connections in a +24 V Cabinet

Figure 3-9shows the signal cable connections in a +24 V cabinet when only one UPEU is

configured.


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Figure 3-9Signal cable connections in a +24 V cabinet (1)

I NSI DE OUT SI DE

UEL P

RS232

RS485

EMU

S1 S2

S3S3S4

S4S5S5

S6

S6S1

S2.1

S2.2

Table 3-9describes the signal cable connections in a +24 V cabinet.

Table 3-9Signal cable connections in a +24 V cabinet (1)


S1 5.4.2 In-Position Signal Cable for the PSU (DC/DC) 1





Figure 3-10shows the signal cable connections in a +24 V cabinet when two UPEUs or one

UPEU plus one UEIU are configured.

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Figure 3-10Signal cable connections in a +24 V cabinet (2)

I NSI DE OUT SI DE

UEL P

RS232

RS485

EMU

S2.1

S2.2

S1

S1

S2S3

S3

S4

S4

S5

S5

S6

S6

Table 3-10describes the signal cable connections in a +24 V cabinet.

Table 3-10Signal cable connections in a +24 V cabinet (2)







Signal Cable Connections in a 220 V Cabinet

Figure 3-11shows the signal cable connections in a 220 V cabinet when only one UPEU is

configured.


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Figure 3-11Signal cable connections in a 220 V cabinet (1)

RUN ALM -4 8 V 0 V

BAT

RS232/RS422

ACINPU T

DC

OUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT. LOAD2(-)

R TN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

RS232

RS485

EMUS1

S5

S5 S6

S6

S2

S2

S3

S3

S4S4

S1

Table 3-11describes the signal cable connections in a 220 V cabinet.

Table 3-11Signal cable connections in a 220 V cabinet (1)





S5 5.4.3 Monitoring Signal Cable for the PMU 1


Figure 3-12shows the signal cable connections in a 220 V cabinet when two UPEUs or one

UPEU plus one UEIU are configured.

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Figure 3-12Signal cable connections in a 220 V cabinet (2)

RUN ALM -4 8 V 0 V

BAT

RS232/RS422

AC

INPU T

DCOUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT. LOAD2(-)

R TN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

RS232

RS485

EMU

S6

S1

S1S2

S2

S6S3

S3

S5

S5

S4

S4

Table 3-12describes the signal cable connections in a 220 V cabinet.

Table 3-12Signal cable connections in a 220 V cabinet (2)







3.2.2 Signal Cable Connections of Stacked BTS3900 Cabinets

The signal cable connections of stacked BTS3900 cabinets involve the signal cable connections

when a -48 V cabinet, a +24 V cabinet, or a 220 V cabinet is stacked with another -48 V cabinet.

Signal Cable Connections of Stacked Cabinets (-48 V)

In this situation, two -48 V cabinets are installed in stack mode.


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Figure 3-13shows the signal cable connections in stacked cabinets when only one UPEU is

configured.

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Figure 3-13Signal cable connections of stacked cabinets (1)

I NS IDE OUT SI DE

UEL P

RS232

RS485

EMU

S4

S4

S5

S5

S1.2

S1S2

S2

S6

S6

S3

S3

S1.1


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NOTE

The GATM and EMU in Figure 3-13, Figure 3-14, Figure 3-15, Figure 3-16, Figure 3-17, and Figure

3-18are optional. The GATM can be installed in the cabinet. If there is no enough space in the cabinet,

the GATM can be installed in spare space of other equipment. The EMU can be installed on a wall.

Table 3-13describes the signal cable connections of stacked cabinets.

Table 3-13Signal cable connections of stacked cabinets (1)





S4 5.4.9 Signal Cable Between the Cascaded FAN Units 1


Figure 3-14shows the signal cable connections when two UPEUs or one UPEU plus one UEIU

are configured.

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I NS IDE OUT SI DE

UEL P

RS232

RS485

EMU

S2

S4

S4

S3S6

S3S5

S2

S6

S5

S1.2

S1

S1.1



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Signal Cable Connections of Stacked Cabinets (+24 V)

In this situation, one +24 V cabinet and one -48 V cabinet are installed in stack mode.


configured.

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INSIDE OUTSIDE

UEL P

RS232

RS485

EMU

S5

S6

S6

S7

S7

S4

S5

S1 S2

S3

S3

S4

S1

S2.1

S2.2

S2.3



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Figure 3-16shows the signal cable connections when two UPEUs or one UPEU plus one UEIUare configured.

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INSIDE OUTSIDE

UEL P

RS232

RS485

EMU

S5

S4S7

S7

S2

S3S4

S5

S3

S6

S6

S1

S1

S2.1

S2.2

S2.3



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Signal Cable Connections of Stacked Cabinets (220 V)In this situation, one 220 V cabinet and one -48 V cabinet are installed in stack mode.


configured.

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RUN ALM -4 8 V 0 V

BAT

RS232/RS422

AC

INPU T

DCOUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT. LOAD2(-)

RTN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

RS232

RS485

EMU

S4

S5

S2

S2

S6 S7

S7

S6

S5

S3

S3S4

S1

S1.1

S1.2



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Figure 3-18shows the signal cable connections when two UPEUs or one UPEU plus one UEIUare configured.

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RUN ALM -4 8 V 0 V

BAT

RS232/RS422

AC

INPU T

DCOUTPU T

L1

L2

L3

N1

N2

N3

COM

ON

OFF

BAT. LOAD2(-)

RTN(+)

LOAD1(-)

RTN(+)

BAT.(-)

BAT.(+)

OFF ON

0 1

INSIDE OUTSIDE

UEL P

RS232

RS485

EMU

S6

S3S2

S2

S5

S7

S4

S4S5

S3S6

S7

S1

S1.1

S1.2



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3.3 Transmission Cable Connections of the BTS3900The transmission cable connections of the BTS3900 involve the connections of the E1 cable,

E1 surge protection transfer cable, CPRI cable, and signal cable between cascaded DRFUs. The

E1 surge protection transfer cable is required only when the UELP is configured.

Transmission Cable Connections of a Single Cabinet

Figure 3-19shows the typical cable connections of a single cabinet when the UELP is

configured.

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Figure 3-19Transmission cable connections of a single cabinet (1)

I NSI DE OUT SI DE

UEL P

RTN(+)

NEG(-)

INP UT

S1S2S3 S4S5S6

S7

S1 S2 S3 S4 S5 S6

S7

S8

NOTE

The transmission cables installed in Figure 3-19are based on the star topology, in which the UELP is

configured.

Table 3-19describes the transmission cable connections of a single cabinet.

Table 3-19Transmission cable connections of a single cabinet (1)


S1-S6 5.3.3 CPRI Cable 6

S7 5.3.2 E1 Surge Protection Transfer Cable 1

S8 5.3.1 E1 Cable 1

Figure 3-20shows the typical cable connections of a single cabinet when the UELP is not

configured.


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Figure 3-20Transmission cable connections of a single cabinet (2)

RTN(+)

NEG(-)

INP UT

S1S2S3 S4S5S6

S7

S1 S2 S3 S4 S5 S6

NOTE

The transmission cables installed in Figure 3-20arebased on the star topology, in which the UELP is not

configured.

Table 3-20describes the transmission cable connections of a single cabinet.

Table 3-20Transmission cable connections of a single cabinet (2)



S7 5.3.1 E1 Cable 1

Transmission Cable Connections of Two Stacked Cabinets

Figure 3-21shows the typical transmission cable connections of two stacked cabinets.

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Figure 3-21Transmission cable Connections of two stacked cabinets

I NS IDE OUT SI DE

UEL P

S1S2S3S4 S5 S6

S7S7

S1 S3 S5

S2

S12 S13

S9 S10 S11

S14

S4 S6

S8


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NOTE

The transmission cables installed in Figure 3-21are based on the chain topology, in which the UELP is

configured.

Table 3-21describes the transmission cable connections of two stacked cabinets.

Table 3-21Transmission cable Connections of two stacked cabinets



S7 5.3.2 E1 Surge Protection Transfer Cable 1

S8 5.3.1 E1 Cable 1

S9-S14 5.3.4 Signal Cable Between the Cascaded DRFUs 6

3.4 RF Cable Connections of the BTS3900

The RF cable connections of the BTS3900 involve the connections of the RF cables of a single

cabinet and the RF cables of stacked cabinets.

RF Cable Connections

Figure 3-22shows the t

huawei bts 3900

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