Huawei BTS3900 Hardware Description

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BTS3900

V100R003

Hardware Description

Issue 04

Date 2011-02-15

HUAWEI TECHNOLOGIES CO., LTD.

Page 2

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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: support@huawei.com

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BTS3900 Hardware Description About This Document

About This Document

Purpose

This document provides reference for planning and deploying the BTS3900. It describes the configurations, functions, and specifications of the subracks, boards, and modules, and the details such as cable types, cable connections, and connector specifications.

Product Version

The following table lists the product version related to this document.

Product Name

BTS3900 V100R003

Intended Audience

This document is intended for:

l System engineers

l Base station installation engineers

l Site maintenance engineers

Organization

Product Version

1 Changes in the BTS3900 Hardware Description

This describes the changes in the BTS3900 Hardware Description.

2 Exterior of the BTS3900 Cabinet

The BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297 standard.

3 BTS3900 Hardware Configuration

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About This Document

Conventions

BTS3900

Hardware Description

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 describes the components of the BTS3900, which are the BBU3900, RFUs, DCDU-01, FAN unit, DC/DC power system, AC/DC power system and optional modules. The AC/DC power system is configured in the BTS3900 cabinet (220 V); the DC/DC power system is configured in the BTS3900 cabinet (+24 V).

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.

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.

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BTS3900 Hardware Description About This Document

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 boldface and 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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BTS3900

Hardware Description

Format Description

Key Press the key. For example, press Enter and press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

+A means the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means

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.

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BTS3900 Hardware Description Contents

About This Document...................................................................................................................iii

1 Changes in the BTS3900 Hardware Description..................................................................1-1

2 Exterior of the BTS3900 Cabinet..............................................................................................2-1

3 BTS3900 Hardware Configuration..........................................................................................3-1

3.1 Board and Module Configurations..................................................................................................................3-2

3.1.1 Module Configurations in the Cabinet...................................................................................................3-2

3.1.2 Board Configurations of the BBU3900..................................................................................................3-5

3.2 Combinations of Cabinets.............................................................................................................................3-14

3.3 Power System of the BTS3900.....................................................................................................................3-18

3.3.1 Configurations of the Upper-Level Circuit Breaker and Power Cables...............................................3-19

3.3.2 Power Distribution of the BTS3900.....................................................................................................3-20

3.4 Transmission Board Configurations..............................................................................................................3-22

3.5 CPRI Port Configurations.............................................................................................................................3-23

3.5.1 CPRI Port Specifications......................................................................................................................3-23

3.5.2 Configuration Principles for the CPRI Ports on the RFU in the GSM Only Base Station..................3-25

3.5.3 Configuration Principles for the CPRI Ports on the RFU in the UMTS Only Base Station................3-27

3.5.4 Configuration Principles for the CPRI Ports on the RFU in the LTE Only Base Station....................3-29

3.5.5 Configuration Principles for the CPRI Ports on the RFU in the GSM+UMTS Base Station..............3-31

3.5.6 Configuration Principles for the CPRI Ports on the RFU in the GSM+LTE Base Station..................3-33

3.5.7 Configuration Principles for the CPRI Ports on the RFU in the UMTS+LTE Base Station...............3-35

3.6 BTS3900 Monitoring System........................................................................................................................3-36

3.6.1 BBU Monitoring Port...........................................................................................................................3-36

3.6.2 Monitoring Principles of the Cabinet ..................................................................................................3-37

3.6.3 Customized Alarm Inputs.....................................................................................................................3-39

3.7 RF Configurations.........................................................................................................................................3-41

3.7.1 RFU Configurations.............................................................................................................................3-42

3.7.2 Slot Assignment for the RFUs in a Base Station Working in GSM Only Mode.................................3-43

3.7.3 Slot Assignment for the RFUs in a Base Station Working in UMTS Only Mode...............................3-46

3.7.4 Slot Assignment for the RFUs in a Base Station Working in LTE Only Mode..................................3-47

3.7.5 Slot Assignment for the RFUs in a Base Station Working in GSM+UMTS Mode.............................3-50

3.7.6 Slot Assignment for the RFUs in a Base Station Working in GSM+LTE Mode.................................3-56

3.7.7 Slot Assignment for the RFUs in a Base Station Working in UMTS+LTE Mode..............................3-61

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BTS3900

Contents

Hardware Description

4 BTS3900 Components................................................................................................................4-1

4.1 BBU3900 Equipment......................................................................................................................................4-3

4.1.1 Exterior of the BBU3900.......................................................................................................................4-3

4.1.2 Boards and Module of the BBU3900.....................................................................................................4-4

4.2 GRFU............................................................................................................................................................4-39

4.3 DRFU............................................................................................................................................................4-43

4.4 WRFU...........................................................................................................................................................4-49

4.5 MRFU............................................................................................................................................................4-53

4.6 LRFU.............................................................................................................................................................4-57

4.7 DCDU-01......................................................................................................................................................4-60

4.8 Fan Box.........................................................................................................................................................4-62

4.9 GATM...........................................................................................................................................................4-63

4.10 ELU.............................................................................................................................................................4-65

4.11 Power Equipment (DC/DC)........................................................................................................................4-65

4.11.1 Components of the Power Equipment (DC/DC)................................................................................4-66

4.11.2 PSU (DC/DC).....................................................................................................................................4-66

4.11.3 Power Subrack (DC/DC)....................................................................................................................4-68

4.12 Power Equipment (AC/DC)........................................................................................................................4-69

4.12.1 Components of the Power Equipment (AC/DC)................................................................................4-69

4.12.2 PMU...................................................................................................................................................4-70

4.12.3 PSU (AC/DC).....................................................................................................................................4-73

4.12.4 Power Subrack (AC/DC)....................................................................................................................4-75

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

5.1 List of BTS3900 Cables..................................................................................................................................5-3

5.2 BTS3900 Cable Connections..........................................................................................................................5-8

5.2.1 Power Cable Connections......................................................................................................................5-9

5.2.2 Transmission Cable Connections.........................................................................................................5-12

5.2.3 CPRI Cable Connections......................................................................................................................5-38

5.2.4 Monitoring Signal Cable Connections.................................................................................................5-50

5.2.5 RF Cable Connections..........................................................................................................................5-53

5.3 PGND Cables................................................................................................................................................5-66

5.4 Equipotential Cable.......................................................................................................................................5-67

5.5 BTS3900 Power Cable..................................................................................................................................5-68

5.5.1 Input Power Cable for the Cabinet.......................................................................................................5-68

5.5.2 Power Cable for the DCDU-01............................................................................................................5-70

5.5.3 Power Cable for the BBU.....................................................................................................................5-71

5.5.4 Power Cable for the Fan Box...............................................................................................................5-72

5.5.5 Power Cable for the RFU.....................................................................................................................5-72

5.5.6 Power Cable for the GATM.................................................................................................................5-73

5.6 BTS3900 Transmission Cable.......................................................................................................................5-74

5.6.1 E1/T1 Cable..........................................................................................................................................5-75

5.6.2 FE/GE Cable........................................................................................................................................5-77

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5.6.3 FE/GE Optical Cable............................................................................................................................5-78

5.6.4 Cable Between Two FE Electrical Ports..............................................................................................5-79

5.6.5 Cable Between Two FE Optical Ports..................................................................................................5-79

5.7 CPRI Electrical Cable...................................................................................................................................5-80

5.8 BTS3900 Signal Cable..................................................................................................................................5-80

5.8.1 Monitoring Signal Cable for the PMU.................................................................................................5-81

5.8.2 Monitoring Signal Cable for the PSU (DC/DC)..................................................................................5-82

5.8.3 In-Position Signal Cable for the PSU (DC/DC)...................................................................................5-82

5.8.4 Monitoring Signal Cable for the Fan Box............................................................................................5-83

5.8.5 Fan Box Cascade Signal Cable............................................................................................................5-84

5.8.6 Monitoring Signal Cable for the EMU.................................................................................................5-85

5.8.7 Monitoring Signal Cable for the GATM..............................................................................................5-86

5.8.8 BBU Alarm Cable................................................................................................................................5-87

5.8.9 GPS Clock Signal Cable......................................................................................................................5-89

5.8.10 Signal Cable for the ELU...................................................................................................................5-90

5.9 BTS3900 RF Cable.......................................................................................................................................5-90

5.9.1 RF Jumper............................................................................................................................................5-91

5.9.2 Inter-RFU RF Signal Cable..................................................................................................................5-91

6 BTS3900 Auxiliary Equipment................................................................................................6-1

6.1 PS4890 Cabinet...............................................................................................................................................6-2

6.2 EMU................................................................................................................................................................6-3

6.3 DDF.................................................................................................................................................................6-3

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BTS3900 Hardware Description Figures

Figures

Figure 2-1 Exterior of a BTS3900 cabinet...........................................................................................................2-1

Figure 2-2 Dimensions of a BTS3900 cabinet.....................................................................................................2-2

Figure 3-1 Module configurations in the BTS3900 cabinet (-48 V DC)............................................................. 3-2

Figure 3-2 Module configurations in the BTS3900 cabinet (+24 V DC)............................................................ 3-3

Figure 3-3 Module configurations in the BTS3900 cabinet (AC)........................................................................3-3

Figure 3-4 Slots in the BBU3900.........................................................................................................................3-5

Figure 3-5 Typical configuration of the BBU3900 in GO mode.........................................................................3-6

Figure 3-6 Typical configuration of the BBU3900 in UO mode.........................................................................3-8

Figure 3-7 Typical configuration of the BBU3900 in LO mode..........................................................................3-9

Figure 3-8 Typical configuration of the BBU3900 in GU mode.......................................................................3-11

Figure 3-9 Typical configuration of the BBU3900 in GL mode........................................................................3-12

Figure 3-10 Typical configuration of the BBU3900 in UL mode......................................................................3-14

Figure 3-11 Two BTS3900 (-48 V DC) cabinets installed side by side.............................................................3-15

Figure 3-12 Two BTS3900 (+24 V DC) cabinets installed side by side............................................................3-15

Figure 3-13 Two BTS3900 (AC) cabinets installed side by side.......................................................................3-16

Figure 3-14 Two stacked BTS3900 (-48 V DC) cabinets..................................................................................3-17

Figure 3-15 Two stacked BTS3900 (AC) cabinets............................................................................................3-18

Figure 3-16 Power distribution of the BTS3900 (-48 V DC) cabinet................................................................3-20

Figure 3-17 Power distribution of the BTS3900 (+24 V DC) cabinet...............................................................3-21

Figure 3-18 Power distribution of the BTS3900 (AC) cabinet..........................................................................3-21

Figure 3-19 CPRI port connection principles.....................................................................................................3-25

Figure 3-20 Configuration principles for the CPRI ports in a single cabinet.....................................................3-26

Figure 3-21 Configuration principles for the CPRI ports in two cabinets.........................................................3-27

Figure 3-22 CPRI port connection principles.....................................................................................................3-28

Figure 3-23 CPRI port configuration principles (1)...........................................................................................3-28

Figure 3-24 CPRI port configuration principles (2)...........................................................................................3-29

Figure 3-25 CPRI port connection principles.....................................................................................................3-30

Figure 3-26 CPRI port configuration principles.................................................................................................3-30

Figure 3-27 CPRI port connection principles.....................................................................................................3-31

Figure 3-28 Configuration principles for the CPRI ports on the MRFUs (1)....................................................3-32

Figure 3-29 Configuration principles for the CPRI ports on the MRFUs (2)....................................................3-33

Figure 3-30 CPRI port connection principles.....................................................................................................3-34

Figure 3-31 Configuration principles for the CPRI ports on the MRFUs..........................................................3-34

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Figures

BTS3900

Hardware Description

Figure 3-32 CPRI port configuration principles.................................................................................................3-35

Figure 3-33 Slot assignment for the UPEU and UEIU......................................................................................3-37

Figure 3-34 Monitoring system for the BTS3900 cabinet (-48 V DC)..............................................................3-38

Figure 3-35 Monitoring system for the BTS3900 cabinet (+24 V DC).............................................................3-38

Figure 3-36 Monitoring system for the BTS3900 cabinet (AC)........................................................................3-39

Figure 3-37 Customized alarms collected by the UPEU or UEIU.....................................................................3-40

Figure 3-38 Customized alarms collected by the EMU.....................................................................................3-41

Figure 3-39 GSM S4/4/4 (1G+1G+1G).............................................................................................................3-44

Figure 3-40 GSM S10/10/8 (2G+2G+2G).........................................................................................................3-44

Figure 3-41 GSM S4/4/4 & S4/4/4 (1G+1G+1G & 1G+1G+1G).....................................................................3-45

Figure 3-42 GSM S8/8/8 & S8/8/8 (2G+2G+2G & 2G+2G+2G).....................................................................3-46

Figure 3-43 UMTS S1/1/1 (1W+1W+1W)........................................................................................................3-47

Figure 3-44 UMTS S4/4/4 (2W+2W+2W)........................................................................................................3-47

Figure 3-45 LRFU 2T2R 3 x 20 MHz................................................................................................................3-48

Figure 3-46 LRFU 4T4R 3 x 20 MHz................................................................................................................3-49

Figure 3-47 LRFU 3 x 20 MHz+MRFU 3 x 20 MHz........................................................................................3-50

Figure 3-48 GSM 900M S4/4/4+UMTS 1800M S1/1/1....................................................................................3-52

Figure 3-49 GSM S4/4/4 & S4/4/4+UMTS 1800M S1/1/1...............................................................................3-53

Figure 3-50 GSM S4/2/2 & S4/4/4+UMTS 900M S1/1/1.................................................................................3-54

Figure 3-51 GSM S4/4/4 & S8/8/8+UMTS 900M S2/2/2 (900M: 2M+2M+2M, 1800M: 2G+2G+2G)..........3-55

Figure 3-52 3MRFU+6GRFU+3WRFU............................................................................................................3-56

Figure 3-53 MRFU900M 2T2R 3 x 20 MHz+MRFU1800M 2T2R 3 x 20 MHz..............................................3-57

Figure 3-54 MRFU900M 2T2R 3 x 20 MHz+6GRFU1800M...........................................................................3-58

Figure 3-55 3 x 20 MHz 2T2R...........................................................................................................................3-59

Figure 3-56 3GRFU+LRFU 3 x 20 MHz...........................................................................................................3-60

Figure 3-57 MRFU900M 3 x 20 MHz+3GRFU1800M+LRFU 3 x 20 MHz....................................................3-61

Figure 3-58 UMTS S1/1/1+LTE 3 x 20 MHz....................................................................................................3-62

Figure 4-1 BBU3900............................................................................................................................................4-3

Figure 4-2 The position of the ESN (1)................................................................................................................4-4

Figure 4-3 The position of the ESN (2)................................................................................................................4-4

Figure 4-4 GTMU panel.......................................................................................................................................4-5

Figure 4-5 GTMUb panel.....................................................................................................................................4-5

Figure 4-6 Panel of the WMPT..........................................................................................................................4-10

Figure 4-7 LEDs beside the three ports on the WMPT......................................................................................4-11

Figure 4-8 DIP switches on the WMPT.............................................................................................................4-13

Figure 4-9 LMPT................................................................................................................................................4-14

Figure 4-10 Panel of the WBBPa.......................................................................................................................4-17

Figure 4-11 Panel of the WBBPb.......................................................................................................................4-18

Figure 4-12 Panel of the WBBPd.......................................................................................................................4-18

Figure 4-13 Panel of the LBBPb........................................................................................................................4-20

Figure 4-14 Panel of the LBBPc........................................................................................................................4-20

Figure 4-15 FAN panel.......................................................................................................................................4-24

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BTS3900 Hardware Description Figures

Figure 4-16 FANc panel.....................................................................................................................................4-24

Figure 4-17 UPEUa panel..................................................................................................................................4-25

Figure 4-18 UPEUb panel..................................................................................................................................4-26

Figure 4-19 UPEUc panel..................................................................................................................................4-26

Figure 4-20 Slots in the BBU.............................................................................................................................4-27

Figure 4-21 Panel of the UEIU...........................................................................................................................4-28

Figure 4-22 Panel of the USCUb1 (0.5 U).........................................................................................................4-29

Figure 4-23 Panel of the USCUb2 (1 U)............................................................................................................4-29

Figure 4-24 Panel of the UTRP2 supporting two optical ports..........................................................................4-32

Figure 4-25 Panel of the UTRP3, UTRP4, and UTRPb4 supporting eight E1s/T1s.........................................4-32

Figure 4-26 Panel of the UTRP6 supporting one STM-1 .................................................................................4-32

Figure 4-27 Panel of the UTRP supporting four electrical ports........................................................................4-33

Figure 4-28 DIP switch on the UTRP3 or UTRP4.............................................................................................4-35

Figure 4-29 DIP switch on the UTRPb4............................................................................................................4-36

Figure 4-30 Panel of the UBRI...........................................................................................................................4-37

Figure 4-31 GRFU panel....................................................................................................................................4-39

Figure 4-32 Logical structure of the GRFU.......................................................................................................4-40

Figure 4-33 Panel of the DRFU of 900 MHz.....................................................................................................4-44

Figure 4-34 Panel of the DRFU of 1800 MHz...................................................................................................4-45

Figure 4-35 Logical structure of the DRFU.......................................................................................................4-46

Figure 4-36 Panel of the WRFU.........................................................................................................................4-49

Figure 4-37 Principle of the WRFU...................................................................................................................4-50

Figure 4-38 Panel of the MRFU.........................................................................................................................4-53

Figure 4-39 Logical structure of the MRFU......................................................................................................4-54

Figure 4-40 Panel of the LRFU..........................................................................................................................4-57

Figure 4-41 Logical structure of the LRFU........................................................................................................4-58

Figure 4-42 Panel of the DCDU-01...................................................................................................................4-61

Figure 4-43 Fan box...........................................................................................................................................4-62

Figure 4-44 Ports on the FMU board.................................................................................................................4-62

Figure 4-45 GATM panel...................................................................................................................................4-63

Figure 4-46 ELU................................................................................................................................................4-65

Figure 4-47 Power equipment (DC/DC)............................................................................................................4-66

Figure 4-48 Panel of the PSU (DC/DC).............................................................................................................4-67

Figure 4-49 Power Subrack (DC/DC)................................................................................................................4-68

Figure 4-50 Power equipment (AC/DC)............................................................................................................4-70

Figure 4-51 PMU................................................................................................................................................4-70

Figure 4-52 Front panel of the PMU..................................................................................................................4-71

Figure 4-53 Right panel of the PMU..................................................................................................................4-73

Figure 4-54 Panel of the PSU (AC/DC).............................................................................................................4-74

Figure 4-55 Panel of the power subrack (AC/DC).............................................................................................4-76

Figure 5-1 Power cable connections of the BTS3900 (-48 V).............................................................................5-9

Figure 5-2 Power cable connections of the BTS3900 (+24 V)..........................................................................5-10

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Figures

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Hardware Description

Figure 5-3 Power cable connections of the BTS3900 (220 V)..........................................................................5-11

Figure 5-4 E1/T1 cable connections...................................................................................................................5-12

Figure 5-5 E1/T1 cable connections...................................................................................................................5-12

Figure 5-6 FE/GE Ethernet cable connections...................................................................................................5-13

Figure 5-7 FE/GE optical cable connections......................................................................................................5-13

Figure 5-8 E1/T1 cable connections (1).............................................................................................................5-14

Figure 5-9 E1/T1 cable connections (2).............................................................................................................5-14

Figure 5-10 FE/GE Ethernet cable connections (1)........................................................................................... 5-15

Figure 5-11 FE/GE Ethernet cable connections (2)........................................................................................... 5-15

Figure 5-12 FE/GE optical cable connections (1)..............................................................................................5-15

Figure 5-13 FE/GE optical cable connections (2)..............................................................................................5-16

Figure 5-14 E1/T1 cable connections.................................................................................................................5-16

Figure 5-15 FE/GE optical cable connections....................................................................................................5-17

Figure 5-16 Transmission cable connection for a GSM+UMTS base station in TDM common transmission mode

(1)........................................................................................................................................................................5-17

Figure 5-17 Transmission cable connection for a GSM+UMTS base station in TDM common transmission mode

(2)........................................................................................................................................................................5-18

Figure 5-18 Transmission cable connections for a GSM+UMTS base station in IP over E1 common transmission

mode (1).............................................................................................................................................................. 5-18

Figure 5-19 Transmission cable connections for a GSM+UMTS base station in IP over E1 common transmission

mode (2).............................................................................................................................................................. 5-19

Figure 5-20 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission

mode (1).............................................................................................................................................................. 5-19

Figure 5-21 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission

mode (2).............................................................................................................................................................. 5-20

Figure 5-22 Transmission cable connections with FE optical ports for interconnection and FE electrical ports

connected to the BSC and RNC..........................................................................................................................5-21

Figure 5-23 Transmission cable connections with FE electrical ports for interconnection and FE optical ports

connected to the BSC and RNC..........................................................................................................................5-21

Figure 5-24 E1/T1 cable connections in separate transmission mode............................................................... 5-22

Figure 5-25 FE/GE cable connections in separate transmission mode (1).........................................................5-22

Figure 5-26 FE/GE cable connections in separate transmission mode (2).........................................................5-23

Figure 5-27 Transmission cable connections for a GSM+LTE base station in IP over E1 common transmission

mode (1).............................................................................................................................................................. 5-23

Figure 5-28 Transmission cable connections for a GSM+LTE base station in IP over E1 common transmission

mode (2).............................................................................................................................................................. 5-24

Figure 5-29 Transmission cable connections for a GSM+LTE base station in IP over FE/GE common transmission

mode (1).............................................................................................................................................................. 5-24

Figure 5-30 Transmission cable connections for a GSM+LTE base station in IP over FE/GE common transmission

mode....................................................................................................................................................................5-25

Figure 5-31 Transmission cable connections with FE electrical ports for interconnection and FE optical ports

connected to the base station controller.............................................................................................................. 5-26

Figure 5-32 Transmission cable connections with FE optical ports for interconnection and FE electrical ports

connected to the base station controller.............................................................................................................. 5-26

Figure 5-33 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (1).......... 5-27

Figure 5-34 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (2).......... 5-28

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BTS3900 Hardware Description Figures

Figure 5-35 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (1)..........5-28

Figure 5-36 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (2)..........5-29

Figure 5-37 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (1)...........5-29

Figure 5-38 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (2)...........5-30

Figure 5-39 Transmission cable connections for a UMTS+LTE base station in IP over E1 common transmission

mode (1)..............................................................................................................................................................5-30

Figure 5-40 Transmission cable connections for a UMTS+LTE base station in IP over E1 common transmission

mode (2)..............................................................................................................................................................5-31

Figure 5-41 Transmission cable connections for a UMTS+LTE base station in IP over FE/GE common

transmission mode (1).........................................................................................................................................5-31

Figure 5-42 Transmission cable connections for a UMTS+LTE base station in IP over FE/GE common

transmission mode...............................................................................................................................................5-32

Figure 5-43 Transmission cable connections for a UMTS+LTE base station in route backup mode with IP common

transmission (1)...................................................................................................................................................5-33

Figure 5-44 Transmission cable connections for a UMTS+LTE base station in route backup mode with IP common

transmission (2)...................................................................................................................................................5-33

Figure 5-45 Transmission cable connections in hybrid transmission mode (1).................................................5-34

Figure 5-46 Transmission cable connections in hybrid transmission mode (2).................................................5-35

Figure 5-47 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (1)........5-35

Figure 5-48 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (2)........5-36

Figure 5-49 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (1)........5-36

Figure 5-50 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (2)........5-37

Figure 5-51 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (1).........5-37

Figure 5-52 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (2).........5-38

Figure 5-53 Star topology...................................................................................................................................5-39

Figure 5-54 Chain topology...............................................................................................................................5-39

Figure 5-55 Star topology over CPRI ports........................................................................................................5-40

Figure 5-56 Chain topology over CPRI ports....................................................................................................5-40

Figure 5-57 Chain topology over CPRI ports on the WBBPd...........................................................................5-41

Figure 5-58 CPRI cable connections in the 3 x 10 MHz 2T2R configuration...................................................5-41

Figure 5-59 CPRI cable connections in the 3 x 20 MHz 2T2R configuration...................................................5-42

Figure 5-60 CPRI cable connections in the 3 x 10 MHz 4T4R configuration...................................................5-42

Figure 5-61 CPRI cable connections in the 3 x 20 MHz 4T4R configuration...................................................5-43

Figure 5-62 Dual-star topology over CPRI ports (1).........................................................................................5-43

Figure 5-63 Dual-star topology over CPRI ports (2).........................................................................................5-44

Figure 5-64 Dual-star topology over CPRI ports (3).........................................................................................5-44

Figure 5-65 Dual-star topology over CPRI ports (4).........................................................................................5-44

Figure 5-66 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/GRFUs (1)........5-45

Figure 5-67 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/GRFUs (2)........5-46

Figure 5-68 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (1).....................5-47

Figure 5-69 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (2).....................5-47

Figure 5-70 CPRI cable connections in a co-cabinet base station with MRFUs and DRFUs/GRFUs..............5-48

Figure 5-71 Dual-star topology over CPRI ports...............................................................................................5-49

Figure 5-72 CPRI cable connections in co-cabinet mode..................................................................................5-49

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Figures

BTS3900

Hardware Description

Figure 5-73 CPRI port connection principles.....................................................................................................5-50

Figure 5-74 Monitoring signal cable connections of the BTS3900 (-48 V DC)................................................5-51

Figure 5-75 Monitoring signal cable connections of the BTS3900 (+24 V DC)...............................................5-52

Figure 5-76 Signal cable connections of the BTS3900 (AC).............................................................................5-53

Figure 5-77 Cable connections in 1T2R mode (1).............................................................................................5-54

Figure 5-78 Cable connections in 1T2R mode (2).............................................................................................5-55

Figure 5-79 Cable connections with three carriers.............................................................................................5-56

Figure 5-80 Cable Connections with Nine Carriers...........................................................................................5-57

Figure 5-81 Cable connections with 14 carriers.................................................................................................5-58

Figure 5-82 Cable connections with 24 carriers.................................................................................................5-59

Figure 5-83 Cable connections in 1T2R mode (1).............................................................................................5-60

Figure 5-84 Cable connections in 1T2R mode (2).............................................................................................5-61

Figure 5-85 Cable connections in 2T4R mode...................................................................................................5-62

Figure 5-86 RF cable connections in 2T2R mode..............................................................................................5-63

Figure 5-87 RF cable connections in 4T4R mode..............................................................................................5-64

Figure 5-88 Cable connections in G3U1 mode..................................................................................................5-65

Figure 5-89 Cable connections in G9U1 mode..................................................................................................5-66

Figure 5-90 PGND cable for the cabinet............................................................................................................5-67

Figure 5-91 PGND cable for the modules..........................................................................................................5-67

Figure 5-92 Equipotential cable.........................................................................................................................5-67

Figure 5-93 -48 V power cable...........................................................................................................................5-68

Figure 5-94 +24 V power cable..........................................................................................................................5-69

Figure 5-95 AC power cable (220 V AC, single-phase)....................................................................................5-70

Figure 5-96 Power cable for the DCDU-01....................................................................................................... 5-71

Figure 5-97 Power cable for the BBU................................................................................................................5-71

Figure 5-98 Power cable for the fan box............................................................................................................5-72

Figure 5-99 Power cable for the RFU................................................................................................................5-73

Figure 5-100 Power cable for the GATM..........................................................................................................5-74

Figure 5-101 E1/T1 cable...................................................................................................................................5-75

Figure 5-102 FE/GE cable..................................................................................................................................5-77

Figure 5-103 FE/GE optical cable (FC and LC connectors)..............................................................................5-78

Figure 5-104 FE/GE optical cable (SC and LC connectors)..............................................................................5-78

Figure 5-105 FE/GE optical cable (LC and LC connectors)..............................................................................5-79

Figure 5-106 Cable between two FE electrical ports......................................................................................... 5-79

Figure 5-107 Cable between two FE optical ports.............................................................................................5-80

Figure 5-108 CPRI electrical cable....................................................................................................................5-80

Figure 5-109 Monitoring signal cable for the PMU...........................................................................................5-81

Figure 5-110 Monitoring signal cable for the PSU (DC/DC)............................................................................5-82

Figure 5-111 In-position signal cable for the PSU (DC/DC).............................................................................5-83

Figure 5-112 Monitoring signal cable for the fan box....................................................................................... 5-84

Figure 5-113 Fan box cascade signal cable........................................................................................................5-85

Figure 5-114 Monitoring signal cable for the EMU...........................................................................................5-86

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BTS3900 Hardware Description Figures

Figure 5-115 Monitoring signal cable for the GATM........................................................................................5-87

Figure 5-116 BBU alarm cable..........................................................................................................................5-88

Figure 5-117 GPS clock signal cable.................................................................................................................5-89

Figure 5-118 Signal cable for the ELU..............................................................................................................5-90

Figure 5-119 RF jumper.....................................................................................................................................5-91

Figure 5-120 Inter-RFU RF signal cable............................................................................................................5-91

Figure 6-1 Cable connections between the BTS3900 and the PS4890................................................................6-2

Figure 6-2 Structure of the DDF..........................................................................................................................6-3

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Page 21

BTS3900 Hardware Description Tables

Tables

Table 3-1 Components in the cabinet...................................................................................................................3-4

Table 3-2 Principles for configuring the boards in the BBU3900 in GO mode...................................................3-6

Table 3-3 Principles for configuring the boards in the BBU3900 in UO mode...................................................3-7

Table 3-4 Principles for configuring the boards in the BBU3900 in LO mode...................................................3-8

Table 3-5 Principles for configuring the boards in the BBU3900 in GU mode.................................................3-10

Table 3-6 Principles for configuring the boards in the BBU3900 in GL mode................................................. 3-11

Table 3-7 Principles for configuring the boards in the BBU3900 in UL mode................................................. 3-13

Table 3-8 Applicable AC input voltage ranges..................................................................................................3-18

Table 3-9 Applicable DC input voltage ranges..................................................................................................3-19

Table 3-10 Recommended configurations of the upper-level circuit breaker and power cables....................... 3-19

Table 3-11 Transmission modes supported by the boards................................................................................. 3-22

Table 3-12 Specifications of the CPRI ports on the boards in the BBU............................................................3-24

Table 3-13 Specifications of the CPRI ports on the RFUs.................................................................................3-24

Table 3-14 Configuration principles for the CPRI ports in a single cabinet......................................................3-26

Table 3-15 Configuration principles for the CPRI ports in cabinet 1 of the two cabinets.................................3-27

Table 3-16 Configuration principles for the CPRI ports in cabinet 2 of the two cabinets.................................3-27

Table 3-17 CPRI port configuration principles (1)............................................................................................ 3-29

Table 3-18 CPRI port configuration principles (2)............................................................................................ 3-29

Table 3-19 CPRI port configuration principles..................................................................................................3-30

Table 3-20 Configuration principles for the CPRI ports on the MRFUs (1)......................................................3-32

Table 3-21 Configuration principles for the CPRI ports on the MRFUs (2)......................................................3-33

Table 3-22 Configuration principles for the CPRI ports on the MRFUs........................................................... 3-34

Table 3-23 CPRI port configuration principles..................................................................................................3-36

Table 3-24 Ports on the UPEU and UEIU..........................................................................................................3-37

Table 3-25 Configuration of monitoring boards in the BTS3900......................................................................3-39

Table 3-26 RFU configurations..........................................................................................................................3-42

Table 3-27 Slot assignment for GRFUs or DRFUs............................................................................................3-44

Table 3-28 Slot assignment for GRFUs or DRFUs............................................................................................3-45

Table 3-29 Slot assignment for GRFUs or DRFUs............................................................................................3-45

Table 3-30 Slot assignment for MRFUs and LRFUs in a single-band base station...........................................3-48

Table 3-31 Slot assignment for MRFUs and LRFUs in a dual-band base station..............................................3-49

Table 3-32 Slot assignment for GRFUs (or DRFUs) and WRFUs.................................................................... 3-51

Table 3-33 Slot assignment for GRFUs (or DRFUs) and WRFUs.................................................................... 3-52

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Tables

BTS3900

Hardware Description

Table 3-34 RFU slot assignment for MRFUs.....................................................................................................3-53

Table 3-35 RFU slot assignment for GRFUs (or DRFUs) and MRFUs............................................................3-54

Table 3-36 RFU slot assignment for MRFUs, GRFUs (or DRFUs), and WRFUs............................................3-55

Table 3-37 Slot assignment for MRFUs in a dual-band base station.................................................................3-57

Table 3-38 Slot assignment for MRFUs and GRFUs in a dual-band base station.............................................3-58

Table 3-39 Slot assignment for MRFUs and LRFUs in a dual-band base station..............................................3-58

Table 3-40 Slot assignment for DRFUs (or GRFUs) and LRFUs in a dual-band base station..........................3-59

Table 3-41 Slot assignment for MRFUs, GRFUs, and LRFUs in a tri-band base station..................................3-60

Table 3-42 Slot assignment for WRFUs and LRFUs.........................................................................................3-62

Table 4-1 LEDs on the GTMU.............................................................................................................................4-6

Table 4-2 LEDs and their status...........................................................................................................................4-6

Table 4-3 Ports on the GTMU..............................................................................................................................4-7

Table 4-4 Details of the DIP Switch S1...............................................................................................................4-8

Table 4-5 Details of the DIP Switch S2...............................................................................................................4-9

Table 4-6 Details of the DIP Switch S4...............................................................................................................4-9

Table 4-7 Details of the DIP Switch S5...............................................................................................................4-9

Table 4-8 LEDs on the WMPT panel.................................................................................................................4-11

Table 4-9 LEDs and their status.........................................................................................................................4-12

Table 4-10 Ports on the WMPT panel................................................................................................................4-12

Table 4-11 Settings of SW1................................................................................................................................4-13

Table 4-12 Settings of SW2................................................................................................................................4-14

Table 4-13 LEDs on the panel of the LMPT......................................................................................................4-15

Table 4-14 Ports and LEDs................................................................................................................................4-16

Table 4-15 Ports on the panel of the LMPT.......................................................................................................4-17

Table 4-16 Specifications of the WBBP.............................................................................................................4-18

Table 4-17 LEDs on the WBBP and their status................................................................................................4-19

Table 4-18 LEDs indicating the status of the SFP links.....................................................................................4-19

Table 4-19 Ports on the panels of the WBBPa and WBBPb..............................................................................4-20

Table 4-20 Ports on the WBBPd........................................................................................................................4-20

Table 4-21 Specifications of the LBBP..............................................................................................................4-21

Table 4-22 Specifications of the LBBP..............................................................................................................4-21

Table 4-23 LEDs on the LBBP...........................................................................................................................4-22

Table 4-24 LEDs indicating the status of the SFP links.....................................................................................4-22

Table 4-25 Ports on the LBBP............................................................................................................................4-23

Table 4-26 LED on the FAN panel....................................................................................................................4-25

Table 4-27 LED on the panel of the UPEU........................................................................................................4-27

Table 4-28 Description on the ports...................................................................................................................4-27

Table 4-29 Ports on the panel of the UEIU........................................................................................................4-29

Table 4-30 LEDs on the USCU..........................................................................................................................4-30

Table 4-31 LEDs on the TOD port.....................................................................................................................4-31

Table 4-32 Ports on the USCU...........................................................................................................................4-31

Table 4-33 Specifications of the UTRP..............................................................................................................4-32

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BTS3900 Hardware Description Tables

Table 4-34 LEDs on the panel of the UTRP......................................................................................................4-33

Table 4-35 LEDs on the Ethernet ports of the UTRP2 and UTRP9...................................................................4-34

Table 4-36 Ports of the UTRP2 supporting two optical ports............................................................................4-35

Table 4-37 Ports on the panel of the UTRP3, UTRP4 an UTRPb4 supporting eight E1s/T1s..........................4-35

Table 4-38 Port of the UTRP6 supporting one STM-1......................................................................................4-35

Table 4-39 Ports of the UTRP9 supporting four electrical ports........................................................................4-35

Table 4-40 DIP switch SW1 on the UTRP.........................................................................................................4-36

Table 4-41 DIP switch SW2 on the UTRP.........................................................................................................4-36

Table 4-42 DIP switch SW3 on the UTRP.........................................................................................................4-37

Table 4-43 LEDs on the panel of the UBRI.......................................................................................................4-38

Table 4-44 CPRI link status LED.......................................................................................................................4-38

Table 4-45 Ports on the panel of the UBRI........................................................................................................4-39

Table 4-46 LEDs on the GRFU panel................................................................................................................4-41

Table 4-47 Ports on the GRFU panel................................................................................................................. 4-42

Table 4-48 Status of the LEDs on the DRFU.....................................................................................................4-47

Table 4-49 Ports and sockets on the DRFU....................................................................................................... 4-48

Table 4-50 LEDs on the MRFU panel................................................................................................................4-51

Table 4-51 Ports on the WRFU panel................................................................................................................ 4-52

Table 4-52 LEDs on the panel of the MRFU..................................................................................................... 4-55

Table 4-53 Ports on the panel of the MRFU...................................................................................................... 4-56

Table 4-54 LEDs on the LRFU.......................................................................................................................... 4-59

Table 4-55 Ports on the panel of the LRFU........................................................................................................4-60

Table 4-56 Ports, terminals, and power switches on the panel of the DCDU-01...............................................4-61

Table 4-57 LEDs on the FMU board..................................................................................................................4-63

Table 4-58 Ports on the FMU board...................................................................................................................4-63

Table 4-59 LEDs on the GATM.........................................................................................................................4-64

Table 4-60 Ports and socket on the GATM........................................................................................................4-65

Table 4-61 Components of the power equipment (DC/DC)...............................................................................4-66

Table 4-62 LEDs on the panel of the PSU (DC/DC)......................................................................................... 4-67

Table 4-63 Ports and terminals on the power subrack (DC/DC)........................................................................4-69

Table 4-64 Components of the power equipment (AC/DC)...............................................................................4-70

Table 4-65 Ports and switch on the PMU...........................................................................................................4-71

Table 4-66 LEDs on the panel of the PMU........................................................................................................4-72

Table 4-67 LEDs on the panel of the PSU (AC/DC)......................................................................................... 4-74

Table 4-68 Terminals and switch on the power subrack (AC/DC)....................................................................4-76

Table 5-1 Power Cables and PGND Cables.........................................................................................................5-3

Table 5-2 Transmission Cables............................................................................................................................5-5

Table 5-3 CPRI Cables.........................................................................................................................................5-6

Table 5-4 Signal Cables........................................................................................................................................5-7

Table 5-5 RF Cables.............................................................................................................................................5-8

Table 5-6 Power cables of the BTS3900 (-48 V)...............................................................................................5-10

Table 5-7 Power cables of the BTS3900 (+24 V)..............................................................................................5-10

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Tables

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Hardware Description

Table 5-8 Power cables of the BTS3900 (220 V).............................................................................................. 5-11

Table 5-9 E1/T1 cable connections....................................................................................................................5-12

Table 5-10 E1/T1 cable connections..................................................................................................................5-13

Table 5-11 FE/GE Ethernet cable connections...................................................................................................5-13

Table 5-12 FE/GE optical cable connections.....................................................................................................5-13

Table 5-13 E1/T1 cable connections (1).............................................................................................................5-14

Table 5-14 E1/T1 cable connections (2).............................................................................................................5-14

Table 5-15 FE/GE Ethernet cable connections (1).............................................................................................5-15

Table 5-16 FE/GE Ethernet cable connections (2).............................................................................................5-15

Table 5-17 FE/GE optical cable connections (1)................................................................................................5-16

Table 5-18 FE/GE optical cable connections (2)................................................................................................5-16

Table 5-19 E1/T1 cable connections..................................................................................................................5-17

Table 5-20 FE/GE optical cable connections.....................................................................................................5-17

Table 5-21 Transmission cable for a GSM+UMTS base station in TDM common transmission mode (1)

.............................................................................................................................................................................5-18

Table 5-22 Transmission cable for a GSM+UMTS base station in TDM common transmission mode (2)

.............................................................................................................................................................................5-18

Table 5-23 Transmission cables for a GSM+UMTS base station in IP over E1 common transmission mode (1)

.............................................................................................................................................................................5-19

Table 5-24 Transmission cables for a GSM+UMTS base station in IP over E1 common transmission mode (2)

.............................................................................................................................................................................5-19

Table 5-25 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission

mode (1)..............................................................................................................................................................5-20

Table 5-26 Transmission cable connections for a GSM+UMTS base station in IP over FE common transmission

mode (2)..............................................................................................................................................................5-20

Table 5-27 Transmission cables with FE optical ports for interconnection and FE electrical ports connected to the

BSC and RNC.....................................................................................................................................................5-21

Table 5-28 Transmission cables with FE electrical ports for interconnection and FE optical ports connected to the

BSC and RNC.....................................................................................................................................................5-22

Table 5-29 E1/T1 cable connections in separate transmission mode.................................................................5-22

Table 5-30 FE/GE cable connections in separate transmission mode (1)..........................................................5-23

Table 5-31 FE/GE cable connections in separate transmission mode (2)..........................................................5-23

Table 5-32 Transmission cables for a GSM+LTE base station in IP over E1 common transmission mode (1)

.............................................................................................................................................................................5-24

Table 5-33 Transmission cables for a GSM+LTE base station in IP over E1 common transmission mode (2)

.............................................................................................................................................................................5-24

Table 5-34 Transmission cables for a GSM+LTE base station in IP over FE/GE common transmission mode (1)

.............................................................................................................................................................................5-25

Table 5-35 Transmission cables for a GSM+LTE base station in IP over FE/GE common transmission mode

.............................................................................................................................................................................5-25

Table 5-36 Transmission cables with FE electrical ports for interconnection and FE optical ports connected to the

base station controller..........................................................................................................................................5-26

Table 5-37 Transmission cables with FE optical ports for interconnection and FE electrical ports connected to the

base station controller..........................................................................................................................................5-27

Table 5-38 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (1)............5-27

Table 5-39 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode (2)............5-28

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BTS3900 Hardware Description Tables

Table 5-40 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (1)............5-28

Table 5-41 Transmission cable connections in a base station in GSM 8E1/T1+LTE FE/GE mode (2)............5-29

Table 5-42 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (1).............5-29

Table 5-43 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode (2).............5-30

Table 5-44 Transmission cables for a UMTS+LTE base station in IP over E1 common transmission mode (1)

.............................................................................................................................................................................5-30

Table 5-45 Transmission cables for a UMTS+LTE base station in IP over E1 common transmission mode (2)

.............................................................................................................................................................................5-31

Table 5-46 Transmission cables for a UMTS+LTE base station in IP over FE/GE common transmission mode (1)

.............................................................................................................................................................................5-32

Table 5-47 Transmission cables for a UMTS+LTE base station in IP over FE/GE common transmission mode

.............................................................................................................................................................................5-32

Table 5-48 Transmission cables for a UMTS+LTE base station in route backup mode with IP common transmission

(1)........................................................................................................................................................................5-33

Table 5-49 Transmission cables for a UMTS+LTE base station in route backup mode with IP common transmission

(2)........................................................................................................................................................................5-34

Table 5-50 Transmission cables in hybrid transmission mode (1).....................................................................5-34

Table 5-51 Transmission cables in hybrid transmission mode (2).....................................................................5-35

Table 5-52 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (1)..........5-35

Table 5-53 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GE mode (2)..........5-36

Table 5-54 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (1)..........5-37

Table 5-55 Transmission cable connections in a base station in UMTS 8E1/T1+LTE FE/GE mode (2)..........5-37

Table 5-56 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (1)..........5-38

Table 5-57 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE mode (2)..........5-38

Table 5-58 Monitoring signal cable connections of the BTS3900 (-48 V DC).................................................5-51

Table 5-59 Monitoring signal cable connections of the BTS3900 (+24 V DC).................................................5-52

Table 5-60 Signal cable connections of the BTS3900 (AC)..............................................................................5-53

Table 5-61 -48 V power cable............................................................................................................................5-68

Table 5-62 +24 V power cable...........................................................................................................................5-69

Table 5-63 220 V power cable...........................................................................................................................5-70

Table 5-64 Power cable for the DCDU-01.........................................................................................................5-71

Table 5-65 Pin assignment of the power cable for the BBU..............................................................................5-72

Table 5-66 Pin assignment for the wires of the power cable for the fan box.....................................................5-72

Table 5-67 Pin assignment for the wires of the power cable for the RFU.........................................................5-73

Table 5-68 Pin assignment for the wires of the power cable for the GATM.....................................................5-74

Table 5-69 Connectors of the 75-ohm E1 coaxial cable.....................................................................................5-75

Table 5-70 Pin assignment for the wires of the 75-ohm E1 coaxial cable.........................................................5-76

Table 5-71 Pin assignment for the wires of the 120-ohm E1 twisted pair cable................................................5-76

Table 5-72 Pin assignment for the wires of the FE/GE cable............................................................................5-78

Table 5-73 Pin assignment for the wires of the monitoring signal cable for the PMU......................................5-81

Table 5-74 Pin assignment for the wires of the in-position signal cable for the PSU (DC/DC)........................5-83

Table 5-75 Pin assignment for the wires of the monitoring signal cable for the fan box...................................5-84

Table 5-76 Pin assignment of the fan box cascade signal cable.........................................................................5-85

Table 5-77 Pin assignment for the wires of the monitoring signal cable for the EMU......................................5-86

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Tables

BTS3900

Hardware Description

Table 5-78 Pin assignment for the wires of the monitoring signal cable for the GATM...................................5-87

Table 5-79 Pin assignment for the wires of the BBU alarm cable.....................................................................5-88

Table 5-80 Pin assignment for the wires of the signal cable for the ELU..........................................................5-90

Table 6-1 Cables between the BTS3900 and the PS4890....................................................................................6-2

Table 6-2 Technical specifications of the DDF....................................................................................................6-4

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BTS3900 Hardware Description 1 Changes in the BTS3900 Hardware Description

1 Changes in the BTS3900 Hardware

Description

This describes the changes in the BTS3900 Hardware Description.

04 (2011-02-15)

03 (2010-10-25)

This is the third commercial release.

Compared with issue 03 (2010-10-25), no topic is added.

Compared with issue 03 (2010-10-25), this issue incorporates the following change:

Contents

FAN The description of the FANc is added.

UPEU The description of the UPEUc is added.

3.1.2 Board Configurations of the BBU3900

Compared with issue 03 (2010-10-25), no information is deleted.

This is the second commercial release.

Compared with issue 02 (2010-08-30), no topic is added.

Change Description

The configuration restriction is modified.

Compared with issue 02 (2010-08-30), this issue incorporates the following change:

Contents

2 Exterior of the BTS3900 Cabinet The dimensions of the BTS3900 cabinet is

Compared with issue 02 (2010-08-30), no information is deleted.

Issue 04 (2011-02-15) Huawei Proprietary and Confidential

Change Description

added.

1-1

Page 28

1 Changes in the BTS3900 Hardware Description

02 (2010-08-30)

This is the first commercial release.

Compared with issue 01 (2010-05-04), this issue is added with the following topic:

l FMU

l 4.3 DRFU

l 3.5.4 Configuration Principles for the CPRI Ports on the RFU in the LTE Only Base

Station

l 3.5.6 Configuration Principles for the CPRI Ports on the RFU in the GSM+LTE Base

Station

l 3.5.7 Configuration Principles for the CPRI Ports on the RFU in the UMTS+LTE

Base Station

l RF Configurations

l CPRI Cable Connections in the LTE Only Base Station

l CPRI Cable Connections in the GSM+LTE Base Station

l CPRI Cable Connections in the UMTS+LTE Base Station

BTS3900

Hardware Description

01 (2010-05-04)

Compared with issue 01 (2010-05-04), the following part is modified:

Part Modification

3.5.1 CPRI Port Specifications LBBPb, LBBPc, and LRFU are added.

Compared with issue 01 (2010-05-04), no information is deleted.

This is the draft release.

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BTS3900 Hardware Description 2 Exterior of the BTS3900 Cabinet

2 Exterior of the BTS3900 Cabinet

The BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297 standard.

Figure 2-1 shows the exterior of a BTS3900 cabinet.

Figure 2-1 Exterior of a BTS3900 cabinet

Figure 2-2 shows the dimensions of a BTS3900 cabinet.

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2 Exterior of the BTS3900 Cabinet

Figure 2-2 Dimensions of a BTS3900 cabinet

BTS3900

Hardware Description

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

3 BTS3900 Hardware Configuration

About 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 the BTS3900.

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 Transmission Board Configurations

In different modes, different transmission boards can be configured for E1/T1 or FE signal transmission.

3.5 CPRI Port Configurations

This section describes the specifications and cable connections of the CPRI ports on boards and modules.

3.6 BTS3900 Monitoring 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.

3.7 RF Configurations

The RFUs configured in a base station can be DRFUs, GRFUs, WRFUs, LRFUs, or MRFUs.

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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 Configurations of the BBU3900

This section describes the board configurations of the BBU3900 in the GSM Only (hereinafter referred to as GO), UMTS Only (hereinafter referred to as UO), LTE Only (hereinafter referred to as LO), GSM+UMTS (hereinafter referred to as GU), GSM+LTE (hereinafter referred to as GL), and UMTS+LTE (hereinafter referred to as UL) scenarios.

3.1.1 Module Configurations in the Cabinet

BTS3900

Hardware Description

The BTS3900 cabinets can be classified into three types: the BTS3900 cabinet (-48 V DC), BTS3900 cabinet (+24 V DC), and BTS3900 cabinet (AC).

Figure 3-1 Module configurations in the BTS3900 cabinet (-48 V DC)

(1) RFU

(4) BBU3900 (5) DCDU-01 -

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(2) Fan box (3) Air inlet

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Figure 3-2 Module configurations in the BTS3900 cabinet (+24 V DC)

(1) RFU (2) Fan box (3) Air inlet

(4) BBU3900 (5) DCDU-01 (6) Power equipment (DC/DC)

Figure 3-3 Module configurations in the BTS3900 cabinet (AC)

(1) RFU

(2) Fan box (3) Air inlet

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3 BTS3900 Hardware Configuration

(4) BBU3900 (5) DCDU-01 (6) Power equipment (AC/DC)

Table 3-1 describes the components in the cabinet.

Table 3-1 Components in the cabinet

BTS3900

Hardware Description

Module Optional or

Mandatory

Maximum Number of

Remarks

Boards or Modules Configured in a Single Cabinet

RFU Optional 6 The RFU performs modulation and

demodulation between baseband signals and RF signals, processes data, and combines and divides signals.

RFU 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.

BBU3900 Optional 1 The BBU3900 processes the baseband signals

and enables interaction between the base station and the base station controller.

DCDU-01 Mandatory 1 The DCDU-01 provides DC power to all

components in 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 all components in 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 all components in the cabinet.

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Module Optional or

Mandatory

Idle space - -

Maximum Number of Boards or Modules Configured in a Single Cabinet

Remarks

l There is a 3 U idle space in the BTS3900

cabinet (-48 V DC) for customized equipment.

– The customized equipment must be

able to work properly at a temperature equal to or higher than 55OC.

– The BTS3900 cabinet (-48 V DC)

cannot supply power to customized transmission equipment.

l There is no idle space in the BTS3900

cabinet (+24 V DC).

l There is no idle space in the BTS3900

cabinet (AC).

3.1.2 Board Configurations of the BBU3900

Slots in the BBU3900

The board configurations of the BBU3900 in GO mode, BBU3900 in GU mode, BBU3900 in UO mode, BBU3900 in LO mode, BBU3900 in GL mode, and BBU3900 in UL mode are the same, as shown in Figure 3-4.

Figure 3-4 Slots in the BBU3900

BBU3900 in GO Mode

Table 3-2 describes the principles for configuring the boards in the BBU3900 in GO mode.

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Table 3-2 Principles for configuring the boards in the BBU3900 in GO mode

BTS3900

Hardware Description

Board Optional/

Mandatory

Maximum Quantity

Slot Configuration

Restriction

GTMU Mandatory 1 Slots 5 and 6 Configured only

in slot 6 (both slots 5 and 6 are occupied)

FAN Mandatory 1 Slot 16 Configured only

in slot 16

UPEU Mandatory 2 Slot 18 or slot 19 Preferentially

configured in slot 19 in the case of a single UPEU

USCU Optional 1 Slot 0 or slot 1 Preferentially

configured in slot 1

Configured in slot 1 in the case of 1 U dualsatellite-card (in this case, slot 0 is also occupied)

UEIU

Figure 3-5 shows the typical configurations of the BBU3900 in GO mode.

Figure 3-5 Typical configuration of the BBU3900 in GO mode

BBU3900 in UO Mode

Table 3-3 describes the principles for configuring the boards in the BBU3900 in UO mode.

Optional 1 Slot 18 -

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Table 3-3 Principles for configuring the boards in the BBU3900 in UO mode

Board Optional/

Mandatory

Maximum Quantity

Slot Configuration

Restriction

WMPT Mandatory 2 Slot 6 or slot 7 Preferentially

configured in slot 7 in the case of a single WMPT

WBBP Mandatory 4 Slots 0 to 3 Configured in

slot 3 by default:

l If an

expansion of the CPRI port is required, configure the board in slot 2.

l If an

expansion of the CPRI port is not required, configure the board in a slot, with slot priority of slot 0, slot 1, and slot 2.

FAN

Mandatory 1 Slot 16 Configured only

UPEU Mandatory 2 Slot 18 or slot 19 Preferentially

UEIU Optional 1 Slot 18 -

UTRP Optional 4 Slot 0, slot 1,

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slot 4, and slot 5

in slot 16

configured in slot 19 in the case of a single UPEU

Configured in a slot, with slot priority of slot 4, slot 5, slot 0, and slot 1

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BTS3900

Hardware Description

Board Optional/

Mandatory

Maximum Quantity

Slot Configuration

Restriction

USCU Optional 1 Slot 1 or slot 0 Preferentially

configured in slot 1

Configured in slot 1 in the case of 1 U dualsatellite-card (in this case, slot 0 is also occupied)

Figure 3-6 shows the typical configurations of the BBU3900 in UO mode.

Figure 3-6 Typical configuration of the BBU3900 in UO mode

BBU3900 in LO Mode

Table 3-4 describes the principles for configuring the boards in the BBU3900 in LO mode.

Table 3-4 Principles for configuring the boards in the BBU3900 in LO mode

Board

LMPT Mandatory 2 Slot 6 or slot 7 Configured only

LBBP Mandatory 3 Slots 0 to 3 Configured in a

Optional/ Mandatory

Maximum Quantity

Slot Remarks

in slot 7 in the case of a single LMPT

slot, with slot priority of slot 3, slot 1, and slot 2 in the case of a single LBBP

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Board Optional/

Mandatory

Maximum Quantity

Slot Remarks

FAN Mandatory 1 Slot 16 Configured only

in slot 16

UPEU Mandatory 2 Slot 18 or slot 19 Configured only

in slot 19 in the case of a single UPEU

UEIU Optional 1 Slot 18 -

UTRP Optional 1 Slot 4 or slot 5 Preferentially

configured in slot 4

USCU Optional 1 Slot 0, slot 1,

slot 4, or slot 5

Preferentially configured in slot 5 in the case of a single USCU; configured in slot 5 in the case of 1 U USCU (in this case, slot 4 is also occupied)

Preferentially configured in slot 1 if slot 4 and slot 5 are occupied; configured in slot 1 in the case of 1 U USCU (in this case, slot 0 is also occupied)

Figure 3-7 shows the typical configurations of the BBU3900 in LO mode.

Figure 3-7 Typical configuration of the BBU3900 in LO mode

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BBU3900 in GU Mode

Table 3-5 describes the principles for configuring the boards in the BBU3900 in GU mode.

Table 3-5 Principles for configuring the boards in the BBU3900 in GU mode

BTS3900

Hardware Description

Board Optional/

Mandatory

Maximum Quantity

Slot Configuration

Restriction

WMPT Mandatory 1 Slot 7 Configured only

in slot 7

GTMU Mandatory 1 Slots 5 and 6 Configured only

in slot 6 (both slots 5 and 6 are occupied)

WBBP Mandatory 4 Slots 0 to 3 Configured in a

slot, with slot priority of slot 3, slot 0, slot 1, and slot 2

FAN Mandatory 1 Slot 16 Configured only

in slot 16

UPEU Mandatory 2 Slot 18 or slot 19 Configured only

in slot 19 in the case of a single UPEU

UEIU Optional 1 Slot 18 -

UTRP Optional 2 Slot 0, slot 1, or

slot 4

Configured in a slot, with slot priority of slot 4, slot 0, and slot 1

USCU Optional 1 Slot 0 or slot 1 Preferentially

configured in slot 1

Configured in slot 1 in the case of 1 U dualsatellite-card (in this case, slot 0 is also occupied)

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Board Optional/

Mandatory

UBRI Optional 1 Slot 2 For

Figure 3-8 shows the typical configurations of the BBU3900 in GU mode.

Figure 3-8 Typical configuration of the BBU3900 in GU mode

Maximum Quantity

Slot Configuration

Restriction

V100R003C01, the UBRI can be installed in slot 1 or 2, and it is preferrentially installed in slot

BBU3900 in GL Mode

Table 3-6 describes the principles for configuring the boards in the BBU3900 in GL mode.

Table 3-6 Principles for configuring the boards in the BBU3900 in GL mode

Board

LMPT Mandatory 1 Slot 7 Configured only

GTMU Mandatory 1 Slots 5 and 6 Configured only

LBBP Mandatory 3 Slots 0 to 3 Configured in a

Optional/ Mandatory

Maximum Quantity

Slot Remarks

in slot 7

in slot 6 (both slots 5 and 6 are occupied)

slot, with slot priority of slot 3, slot 1, and slot 2

FAN Mandatory 1 Slot 16 Configured only

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in slot 16

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BTS3900

Hardware Description

Board Optional/

Mandatory

Maximum Quantity

Slot Remarks

UPEU Mandatory 2 Slot 18 or slot 19 Configured only

in slot 19 in the case of a single UPEU

UEIU Optional 1 Slot 18 -

UTRP Optional 2 Slot 0, slot 1, or

slot 4

Configured in a slot, with slot priority of slot 4, slot 0, and slot 1

The slot priority of the GO UTRP is higher than that of the LO UTRP

USCU

Optional 1 Slot 0 or slot 1 Preferentially

configured in slot 1

Configured in slot 1 in the case of 1 U dualsatellite-card (in this case, slot 0 is also occupied)

UBRI

Optional 1 Slot 2 For

Figure 3-9 shows the typical configurations of the BBU3900 in GL mode.

Figure 3-9 Typical configuration of the BBU3900 in GL mode

V100R003C01, the UBRI can be installed in slot 1 or 2, and it is preferrentially installed in slot

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

BBU3900 in UL Mode

Table 3-7 describes the principles for configuring the boards in the BBU3900 in UL mode.

Table 3-7 Principles for configuring the boards in the BBU3900 in UL mode

Board Optional/

Mandatory

LMPT Mandatory 1 Slot 6 Configured only

WMPT Mandatory 1 Slot 7 Configured only

LBBP Mandatory 2 Slot 1 and slot 2 Configured only

WBBP Mandatory 3 Slot 0, slot 1, or

FAN Mandatory 1 Slot 16 Configured only

UPEU Mandatory 2 Slot 18 or slot 19 Configured only

Maximum Quantity

Slot Remarks

in slot 6

in slot 7

in slot 2 in the case of a single LBBP

Configured in a

slot 3

slot, with slot priority of slot 3, slot 0, and slot 1 in the case of a single WBBP

in slot 16

in slot 19 in the case of a single UPEU

UEIU Optional 1 Slot 18 -

UTRP Optional 2 Slot 0, slot 1,

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slot 4, or slot 5

Configured in a slot, with slot priority of slot 4, slot 5, slot 0, and slot 1

The slot priority of the UO UTRP is higher than that of the LO UTRP

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3 BTS3900 Hardware Configuration

BTS3900

Hardware Description

Board Optional/

Mandatory

USCU Optional 1 Slot 0 or slot 1 Preferentially

Figure 3-10 shows the typical configurations of the BBU3900 in UL mode.

Figure 3-10 Typical configuration of the BBU3900 in UL mode

Maximum Quantity

Slot Remarks

configured in slot 1

Configured in slot 1 in the case of 1 U dualsatellite-card (in this case, slot 0 is also occupied)

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.

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 can be positioned on the 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 3-11, Figure 3-12, and Figure 3-13 show the side-by-side installation mode with two

cabinets.

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Figure 3-11 Two BTS3900 (-48 V DC) cabinets installed side by side

Figure 3-12 Two BTS3900 (+24 V DC) cabinets installed side by side

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Figure 3-13 Two BTS3900 (AC) cabinets installed side by side

BTS3900

Hardware Description

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 50°C.

Figure 3-14 and Figure 3-15 show the stack mode with two cabinets.

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Figure 3-14 Two stacked BTS3900 (-48 V DC) cabinets

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Figure 3-15 Two stacked BTS3900 (AC) cabinets

BTS3900

Hardware Description

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 3-8 and Table 3-9 list the input voltage ranges supported by the BTS3900.

Table 3-8 Applicable AC input voltage ranges

Power Input Type

220 V AC single-phase 220 V AC to 240 V AC 176 V AC to 290 V AC

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Rated Voltage Working Voltage

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

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 3-9 Applicable 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 Configurations of the Upper-Level Circuit Breaker and Power Cables

This section describes the recommended configurations of the upper-level circuit breaker and power cables for the BTS3900. The recommended configurations are based on a fully-configured single cabinet, 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 Configurations of the Upper-Level Circuit Breaker and Power Cables

Table 3-10 lists the recommended configurations of the upper-level circuit breaker and power

cables for the BTS3900.

Table 3-10 Recommended configurations of the upper-level circuit breaker and power cables

Power Supply

-48 V DC 2 x 80 A

Requirement for the Circuit Breakers on Customer Equipment

Cross-Sectional Area of the Power Cable

16 mm

Length of the Power Cable

≤ 15 m

+24 V DC 1 x 160 A or 2 x 100

200 V AC singlephase

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1 x 63 A or 1 x 50 A (both using the two-

25 mm

6 mm

≤ 15 m

≤ 40 m

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BTS3900

Hardware Description

Power Supply Requirement for

the Circuit Breakers on Customer Equipment

110 V AC dual-livewire

220 V AC threephase

level magnetic blast breaker)

1 x 25 A or 1 x 32 A (both using the threelevel magnetic blast breaker)

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.

Cross-Sectional Area of the Power Cable

2.5 mm

Length of the Power Cable

≤ 40 m

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

3-16 shows the power distribution principles.

Figure 3-16 Power distribution of the BTS3900 (-48 V DC) cabinet

NOTE

MCB: miniature circuit breaker

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Power Distribution of the BTS3900 (+24 V DC) Cabinet

The external power equipment supplies +24 V DC power to the power equipment (DC/DC) of the BTS3900 (+24 V DC) cabinet. The power equipment (DC/DC) converts +24 V DC power 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 3-17 shows the power distribution principles.

Figure 3-17 Power 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) converts the AC power into -48 V DC power and feeds the -48 V DC power to the DCDU-01. The DCDU-01 feeds power to each module in the cabinet. Figure 3-18 shows the power distribution principles.

Figure 3-18 Power distribution of the BTS3900 (AC) cabinet

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3.4 Transmission Board Configurations

In different modes, different transmission boards can be configured for E1/T1 or FE signal transmission.

Table 3-11 lists the transmission modes supported by the boards working in different modes.

Table 3-11 Transmission modes supported by the boards

BTS3900

Hardware Description

Transmission Mode

ATM over E1/T1WMPT UMTS 1 Four channels

IP over E1/T1 GTMU/

TDM over E1/T1GTMU/

Transmission over FE/GE optical cable

Board GSM/UMTS

Mode

UTRP3 UMTS 2 Eight channels

GSM 1 Four channels

GTMUb

WMPT UMTS 1 Four channels

UTRP4 UMTS 2 Eight channels

UTRPb4 LTE 2 Eight channels

GSM 1 Four channels

GTMUb

UTRPb4 GSM 1 Four channels

GTMU/ GTMUb

LMPT LTE 2 10 Mbit/s, 100

GSM 1 10 Mbit/s and

Port Port Capacity

100 Mbit/s

Mbit/s, and 1000 Mbit/s

WMPT UMTS 1 10 Mbit/s and

UTRP2 UMTS 2 10 Mbit/s, 100

Transmission over FE/GE electrical cable

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GTMU/ GTMUb

LMPT LTE 2 10 Mbit/s, 100

WMPT UMTS 1 10 Mbit/s and

GSM 1 10 Mbit/s and

100 Mbit/s

Mbit/s, and 1000 Mbit/s

100 Mbit/s

Mbit/s, and 1000 Mbit/s

100 Mbit/s

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

Transmission

Board GSM/UMTS

Mode

UTRP9 UMTS 4 10 Mbit/s, 100

NOTE

l The GTMU/GTMUb is mandatory for the GSM mode. When the channels of the E1/T1 signals are

more than four, the UTRPb4 must be configured for E1/T1 signal transmission.

l The WMPT is mandatory for the UMTS mode. When the channels of the E1/T1 signals are more than

four, the UTRP3 or UTRP4 must be configured for E1/T1 signal transmission. When the transmission rate for the FE optical cable is higher than 100 Mbit/s, the UTRP2 must be configured. When the transmission rate for the FE electrical cable is more than 100 Mbit/s, the UTRP9 must be configured.

l The transmission over FE/GE optical cable is recommended for the LMPT.

3.5 CPRI Port Configurations

This section describes the specifications and cable connections of the CPRI ports on boards and modules.

Port Port Capacity

Mode

Mbit/s, and 1000 Mbit/s

3.5.1 CPRI Port Specifications

The base station configurations are affected by the number, transmission rate, and supported topology of CPRI ports on the RFUs and BBU.

3.5.2 Configuration Principles for the CPRI Ports on the RFU in the GSM Only Base Station

When a base station works in GSM mode, the DRFUs/GRFUs in the slots of the cabinet are connected to the CPRI ports on the GTMU.

3.5.3 Configuration Principles for the CPRI Ports on the RFU in the UMTS Only Base Station

When a base station works in UMTS mode, the WRFUs in the slots of the cabinet are connected to the WBBPbs/WBBPds in the BBU.

3.5.4 Configuration Principles for the CPRI Ports on the RFU in the LTE Only Base Station

When a base station works in LTE only mode, the RFUs in the cabinet are the LRFUs.

3.5.5 Configuration Principles for the CPRI Ports on the RFU in the GSM+UMTS Base Station

When a base station works in GSM+UMTS mode, the RFUs in the cabinet are the MRFUs, and the boards configured in the BBU are the GTMU, UBRI, WMPT, and WBBPb/WBBPd.

3.5.6 Configuration Principles for the CPRI Ports on the RFU in the GSM+LTE Base Station

When a base station works in GSM+LTE mode, the RFUs in the cabinet are the MRFUs, and the boards configured in the BBU are the GTMU, UBRI, LMPT, and LBBP.

3.5.7 Configuration Principles for the CPRI Ports on the RFU in the UMTS+LTE Base Station

When a base station works in UMTS+LTE mode, the RFUs in the cabinet are the WRFUs and LRFUs, and the boards configured in the BBU are the WMPT, WBBP, LMPT, and LBBP.

3.5.1 CPRI Port Specifications

The base station configurations are affected by the number, transmission rate, and supported topology of CPRI ports on the RFUs and BBU.

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Specifications of the CPRI Ports on the BBU

Table 3-12 lists the specifications of the CPRI ports on the boards in the BBU.

Table 3-12 Specifications of the CPRI ports on the boards in the BBU

BTS3900

Hardware Description

Board Number of CRPI

Ports

GTMU 6 1.25 Gbit/s Star, chain, or ring

GTMUb 6 1.25 Gbit/s or 2.5

UBRI 6 1.25 Gbit/s or 2.5

WBBPa 3 1.25 Gbit/s Star, chain, or ring

WBBPb 3 1.25 Gbit/s or 2.5

WBBPd 6 1.25 Gbit/s or 2.5

LBBPb 6 1.25 Gbit/s or 2.5

LBBPc 6 1.25 Gbit/s or 2.5

Transmission Rate of the CPRI Port

Gbit/s

Gbit/s or 4.9 Gbit/s

Supported Topology

Star, chain, or ring

Specifications of the CPRI Ports on the RFUs

Table 3-13 lists the specifications of the CPRI ports on the RFUs.

Table 3-13 Specifications of the CPRI ports on the RFUs

RFU

DRFU 2 1.25 Gbit/s Star or chain

GRFU 2 1.25 Gbit/s Star or chain

WRFU 2 1.25 Gbit/s or 2.5

MRFU 2 1.25 Gbit/s Star

MRFU V2 2 1.25 Gbit/s or 2.5

Number of CRPI Ports

Transmission Rate of the CPRI Port

Gbit/s

Supported Topology

Star or chain

Star

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BTS3900 Hardware Description 3 BTS3900 Hardware Configuration

RFU Number of CRPI

Ports

LRFU 2 1.25 Gbit/s or 2.5

Transmission Rate of the CPRI Port

Gbit/s

Supported Topology

Star

3.5.2 Configuration Principles for the CPRI Ports on the RFU in the GSM Only Base Station

When a base station works in GSM mode, the DRFUs/GRFUs in the slots of the cabinet are connected to the CPRI ports on the GTMU.

Basic CPRI Port Connection Principles

l The DRFU/GRFU supports star and chain topologies.

l The DRFUs can be connected over the CPRI ports with a maximum of three levels of

cascading, the GRFUs can be connected over the CPRI ports with a maximum of two levels of cascading, and the DRFUs and GRFUs can be connected over the CPRI ports with a maximum of two levels of cascading. The data transmission rates over the CPRI ports of the cascaded DRFUs/GRFUs are the same.

l The DRFUs/GRFUs cannot be connected to the RRU.

Figure 3-19 shows the CPRI connection principles.

Figure 3-19 CPRI port connection principles

CPRI Port Configuration Principles

l Each CPRI port on the GTMU corresponds to a sector.

l The CRPI1 port on the DRFU is connected to the GTMU, and the CPRI0 port is connected

to the lower-level RFU.

l The CRPI0 port on the GRFU is connected to the GTMU, and the CPRI1 port is connected

to the lower-level RFU.

l The CPRI port configuration principles in a base station with a single cabinet are shown in

Figure 3-20 and listed in Table 3-14. The CPRI ports corresponding to an idle slot in the

cabinet are idle.

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Figure 3-20 Configuration principles for the CPRI ports in a single cabinet

Table 3-14 Configuration principles for the CPRI ports in a single cabinet

BTS3900

Hardware Description

Slot

0 1 2 3 4 5

Number of the DRFU/ GRFU

Number

CPRI0 CPRI1 CPRI2 CPRI3 CPRI4 CPRI5

of the CPRI Port on the GTMU

l The CPRI port configuration principles in a base station with two cabinets are shown in

Figure 3-21 and listed in Table 3-15 and Table 3-16.

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Figure 3-21 Configuration principles for the CPRI ports in two cabinets

Table 3-15 Configuration principles for the CPRI ports in cabinet 1 of the two cabinets

Slot Number of the DRFU/GRFU

Number of the CPRI Port on the GTMU

Table 3-16 Configuration principles for the CPRI ports in cabinet 2 of the two cabinets

Slot Number of the DRFU/GRFU

Number of the CPRI Port on the GTMU

0 and 1 2 and 3 4 and 5

CPRI0 CPRI2 CPRI4

0 and 1 2 and 3 4 and 5

CPRI1 CPRI3 CPRI5

3.5.3 Configuration Principles for the CPRI Ports on the RFU in the UMTS Only Base Station

When a base station works in UMTS mode, the WRFUs in the slots of the cabinet are connected to the WBBPbs/WBBPds in the BBU.

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Basic CPRI Port Connection Principles

l The WRFU supports star and chain topologies.

l The WRFUs can be connected over the CPRI ports with a maximum of two levels of

cascading. The two cascaded WRFUs work in the same sector and the data transmission rates over the CPRI ports on the two WRFUs are the same.

l The WRFU cannot be connected to the RRU.

Figure 3-22 shows the CPRI connection principles.

Figure 3-22 CPRI port connection principles

BTS3900

Hardware Description

CPRI Port Configuration Principles

l Each CPRI port on the WBBPb/WBBPd corresponds to a sector.

l The CRPI0 port on the WRFU is connected to the WBBP, and the CPRI1 port is connected

to the lower-level WRFU.

l The CPRI port configuration principles in a base station configured with WBBPbs are

shown in Figure 3-23 and listed in Table 3-17.

Figure 3-23 CPRI port configuration principles (1)

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Table 3-17 CPRI port configuration principles (1)

MRFU Slot Number

Number of the WBBPb in Slot3

l The CPRI port configuration principles in a base station configured with WBBPds are

shown in Figure 3-24 and listed in Table 3-17.

Figure 3-24 CPRI port configuration principles (2)

0 1 2 3 4 5

CPRI0 - CPRI1 - CPRI2 -

Table 3-18 CPRI port configuration principles (2)

MRFU Slot Number

Number of the WBBPd in Slot3

0 1 2 3 4 5

CPRI0 - CPRI2 - CPRI4 -

3.5.4 Configuration Principles for the CPRI Ports on the RFU in the LTE Only Base Station

When a base station works in LTE only mode, the RFUs in the cabinet are the LRFUs.

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Basic CPRI Port Connection Principles

l The LRFU can work in the star topology. The chain topology is not supported.

l The LRFU cannot be connected to the RRU.

Figure 3-25 shows the CPRI connection principles.

Figure 3-25 CPRI port connection principles

BTS3900

Hardware Description

CPRI Port Configuration Principles

l The CPRI0 port on the LRFU is connected to the LBBP.

The CPRI port configuration principles are shown in Figure 3-26 and listed in Table 3-19.

Figure 3-26 CPRI port configuration principles

Table 3-19 CPRI port configuration principles

LRFU Slot Number

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0 1 2 3 4 5

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Number of the CPRI Port on the LBBP in Slot 3

CPRI0 - CPRI2 - CPRI4 -

3.5.5 Configuration Principles for the CPRI Ports on the RFU in the GSM+UMTS Base Station

When a base station works in GSM+UMTS mode, the RFUs in the cabinet are the MRFUs, and the boards configured in the BBU are the GTMU, UBRI, WMPT, and WBBPb/WBBPd.

Basic CPRI Port Connection Principles

l The MRFU can work in dual-star topology rather than chain topology.

l When the MRFU works in dual-star topology, the signals in the same mode cannot be

transmitted over two CPRI links.

l The MRFU cannot be connected to the RRU.

Figure 3-27 shows the CPRI port connection principles for the MRFUs working in GSM+UMTS

mode.

Figure 3-27 CPRI port connection principles

CPRI Port Configuration Principles

In co-cabinet mode, the CPRI port configuration principles of the DRFUs/GRFUs and WRFUs follow the configuration principles in GSM and UMTS modes respectively.

In co-module mode, the CPRI port configuration principles are as follows:

l The CPRI0 port on the MRFU is connected to the GTMU or UBRI for GSM data

transmission.

l The CPRI1 port on the MRFU is connected to the WBBPb or WBBPd for UMTS data

transmission.

l The configuration principles for the CPRI ports on the MRFUs are as follows:

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– The CPRI port configuration principles in a base station configured with WBBPbs are

shown in Figure 3-28 and listed in Table 3-20 and Table 3-21.

Figure 3-28 Configuration principles for the CPRI ports on the MRFUs (1)

BTS3900

Hardware Description

Table 3-20 Configuration principles for the CPRI ports on the MRFUs (1)

MRFU

0 1 2 3 4 5

Slot Number

Number

CPRI0 CPRI1 CPRI2 CPRI3 CPRI4 CPRI5

of the CPRI Port on the GTMU

Number

CPRI0 - CPRI1 - CPRI2 -

of the WBBPb in Slot3

Number

- CPRI0 - CPRI1 - CPRI2

of the WBBPb in Slot2

– The CPRI port configuration principles in a base station configured with WBBPds are

shown in Figure 3-29 and listed in Table 3-21.

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Figure 3-29 Configuration principles for the CPRI ports on the MRFUs (2)

Table 3-21 Configuration principles for the CPRI ports on the MRFUs (2)

MRFU Slot Number

Number of the CPRI Port on the GTMU

Number of the WBBPd in Slot3

0 1 2 3 4 5

CPRI0 CPRI1 CPRI2 CPRI3 CPRI4 CPRI5

3.5.6 Configuration Principles for the CPRI Ports on the RFU in the GSM+LTE Base Station

When a base station works in GSM+LTE mode, the RFUs in the cabinet are the MRFUs, and the boards configured in the BBU are the GTMU, UBRI, LMPT, and LBBP.

Basic CPRI Port Connection Principles

l The MRFUs can work in the dual-star topology rather than chain topology.

l When the MRFU works in the dual-star topology, the signals in the same mode cannot be

transmitted over two CPRI links.

l MRFUs cannot be connected to RRUs.

Figure 3-30 shows the CPRI port connection principles for the MRFUs working in GSM+LTE

mode.

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Figure 3-30 CPRI port connection principles

CPRI Port Configuration Principles

In co-cabinet mode, the DRFUs/GRFUs and LRFUs use the configuration principles for the CPRI ports on RFUs in GSM and LTE modes respectively.

BTS3900

Hardware Description

In co-module mode, the CPRI port configuration principles are as follows:

l The CPRI0 port on the MRFU is connected to the GTMU or UBRI for GSM data

transmission.

l The CPRI1 port on the MRFU is connected to the LBBP for LTE data transmission.

The CPRI port configuration principles are shown in Figure 3-31 and listed in Table 3-22.

Figure 3-31 Configuration principles for the CPRI ports on the MRFUs

Table 3-22 Configuration principles for the CPRI ports on the MRFUs

MRFU

0 1 2 3 4 5

Slot Number

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Number of the CPRI Port on the GTMU

Number of the CPRI Port on the LBBP in Slot 3

CPRI0 CPRI1 CPRI2 CPRI3 CPRI4 CPRI5

3.5.7 Configuration Principles for the CPRI Ports on the RFU in the UMTS+LTE Base Station

When a base station works in UMTS+LTE mode, the RFUs in the cabinet are the WRFUs and LRFUs, and the boards configured in the BBU are the WMPT, WBBP, LMPT, and LBBP.

CPRI Port Configuration Principles

The UMTS+LTE base station works in co-cabinet mode.

l The WRFUs use the configuration principles for the CPRI ports on RFUs in UMTS mode.

l The LRFUs use the configuration principles for the CPRI ports on RFUs in LTE mode.

The CPRI port connection principles in UMTS+LTE mode are shown in Figure 3-32 and listed in Table 3-23.

Figure 3-32 CPRI port configuration principles

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Table 3-23 CPRI port configuration principles

BTS3900

Hardware Description

MRFU Slot Number

LRFU Slot Number

Number of the CPRI Port on the WBBP in Slot 3

Number of the CPRI Port on the LBBP in Slot 2

0 - 2 - 4 -

- 1 - 3 - 5

CPRI0

- CPRI1 - CPRI3 - CPRI5

- CPRI2 - CPRI4 -

3.6 BTS3900 Monitoring System

3.6.1 BBU Monitoring Port

3.6.2 Monitoring Principles of the Cabinet

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 by using the RS485 serial bus.

3.6.3 Customized Alarm Inputs

When an alarm is generated by the customized equipment, the alarm must be reported to the BBU.

3.6.1 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

3-33 shows the slot assignment for the UPEU and UEIU.

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Figure 3-33 Slot assignment for the UPEU and UEIU

Table 3-24 lists the ports on the UPEU and UEIU.

Table 3-24 Ports on the UPEU and UEIU

Slot Board Port Connector Quantity Description

Slot19 UPEU EXT-ALM0 RJ-45

connector

EXT-ALM1 RJ-45

connector

MON0 RJ-45

connector

MON1 RJ-45

connector

Slot18 UEIU

(optional)

EXT-ALM0 RJ-45

connector

EXT-ALM1 RJ-45

connector

1 Port for

Boolean inputs 8 to 11

1 Port for

Boolean inputs 12 to 15

1 Port for

RS485 input 0

1 Port for

RS485 input 1

1 Port for

Boolean inputs 0 to 3

1 Port for

Boolean inputs 4 to 7

MON0 RJ-45

connector

MON1 RJ-45

connector

3.6.2 Monitoring Principles of the Cabinet

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1 Port for

RS485 input 0

1 Port for

RS485 input 1

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l For details about the monitoring ports on the FMU, see 4.8 Fan Box. 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 Cabinet and 4.8 Fan Box.

l For details about the monitoring ports on the PMU, see 4.12.2 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.

This document describes monitoring principles of two BTS3900 cabinets. If cabinet 1 is not configured, the monitoring cables connected to the cabinet are not required.

Figure 3-34 Monitoring system for the BTS3900 cabinet (-48 V DC)

BTS3900

Hardware Description

Figure 3-35 Monitoring system for the BTS3900 cabinet (+24 V DC)

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Figure 3-36 Monitoring system for the BTS3900 cabinet (AC)

NOTE

For details about how to monitor the EMU, see the section Customized Alarm Inputs.

3.6.3 Customized Alarm Inputs

When an alarm is generated by the customized equipment, the alarm 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 configuration of the monitoring boards in the BTS3900 depends on the number of customized alarms, as listed in Table 3-25.

Table 3-25 Configuration of monitoring boards in the BTS3900

Cabinet Type

Number of Dry Contact Alarm Inputs

Monitoring Board

-48 V DC cabinet or

AC cabinet

+24 V DC cabinet None UPEU

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None UPEU

1 to 16 UPEU+UEIU

17 to 32 UPEU+UEIU+EMU

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BTS3900

Hardware Description

Cabinet Type Number of Dry Contact

Alarm Inputs

1 to 16 UPEU+UEIU+EMU

17 to 32

NOTE

l If backup power is required for the BBU, two UPEUs rather than UPEU+UEIU are configured.

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 alarm inputs. A maximum of two UPEUs or UPEU+UEIU can be configured for the BBU to receive 16 Boolean alarm inputs. This method can be used for the configuration of fewer than 16 customized alarm inputs. The method to collect customized alarms by using the UPEU or UEIU is shown in Figure 3-37.

Monitoring Board

Figure 3-37 Customized alarms collected by the UPEU or UEIU

Customized Alarms Collected by the EMU

If there are more than 16 Boolean alarm inputs, the EMU can be configured for the BTS3900. Each EMU supports 32 Boolean alarm inputs and two RS485 signal inputs, the cable connections are shown in Figure 3-38.

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.

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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 equipment.

Figure 3-38 Customized alarms collected by the EMU

3.7 RF Configurations

The RFUs configured in a base station can be DRFUs, GRFUs, WRFUs, LRFUs, or MRFUs.

3.7.1 RFU Configurations

The RFUs configured in a base station can be MRFUs, DRFUs, GRFUs, WRFUs, or LRFUs.

3.7.2 Slot Assignment for the RFUs in a Base Station Working in GSM Only Mode

When a base station works in GSM only mode, the DRFU or GRFU slot assignment in a cabinet must comply with specific principles.

3.7.3 Slot Assignment for the RFUs in a Base Station Working in UMTS Only Mode

When a base station works in UMTS only mode, the WRFU slot assignment in a cabinet must comply with specific principles.

3.7.4 Slot Assignment for the RFUs in a Base Station Working in LTE Only Mode

When a base station works in LTE only mode, the LRFU or MRFU slot assignment in a cabinet must comply with specific principles.

3.7.5 Slot Assignment for the RFUs in a Base Station Working in GSM+UMTS Mode

When a base station works in GSM+UMTS mode, the RFU slot assignment in a cabinet must comply with specific principles.

3.7.6 Slot Assignment for the RFUs in a Base Station Working in GSM+LTE Mode

When a base station works in GSM+LTE mode, the RFU slot assignment in a cabinet must comply with specific principles.

3.7.7 Slot Assignment for the RFUs in a Base Station Working in UMTS+LTE Mode

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When a base station works in UMTS+LTE mode, the RFU slot assignment in a cabinet must comply with specific principles.

3.7.1 RFU Configurations

The RFUs configured in a base station can be MRFUs, DRFUs, GRFUs, WRFUs, or LRFUs.

Table 3-26 describes RFU configurations.

Table 3-26 RFU configurations

BTS3900

Hardware Description

Mode Frequency

Band

GSM only (GO) EGSM 900

MHz

PGSM 900 MHz

GSM 1800 MHz DRFU/GRFU/

GSM 1900 MHz GRFU/MRFU

UMTS only (UO)

850 MHz WRFU

900 MHz MRFU V1/

2100 MHz WRFU

Supported RFU

DRFU/GRFU/ MRFU V1/ MRFU V2

MRFU V1/ MRFU V2

MRFU V2

Maximum Number of Supported Carriers

l 2 carriers

(DRFU)

l 6 carriers

(GRFU)

l 6 carriers

(MRFU V1/ MRFU V2)

l 2 or 4

carriers (WRFU)

l 4 carriers

(MRFU V1/ MRFU V2)

Number of TX and RX Channels

l 2T2R

(DRFU)

l 1T2R

(GRFU)

l 1T2R

(MRFU V1/ MRFU V2)

l 1T2R

(WRFU)

l 1T2R

(MRFU V1/ MRFU V2)

LTE only (LO) AWS LRFU

2600 MHz

900 MHz MRFU V2

1800 MHz

GSM+UMTS (GU)

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- MRFU V1/ MRFU V2

l 1 carrier

(LRFU)

l 1 carrier

(MRFU V2)

A base station working in GSM+UMTS mode supports a maximum of six carriers, and a maximum of two carriers are supported by the UMTS side.

l 2T2R

(LRFU)

l 1T2R

(MRFU)

1T2R

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Mode Frequency

Band

GSM+LTE (GL)

UMTS+LTE (UL)

- MRFU V1/

- WRFU/LRFU

Supported RFU

MRFU V2

Maximum Number of Supported Carriers

A base station working in GSM+LTE mode supports a maximum of six carriers, and one carrier is supported by the LTE side.

l 2 or 4

carriers (WRFU)

l 1 carrier

(LRFU)

Number of TX and RX Channels

1T2R

l 1T2R

(WRFU)

l 2T2R

(LRFU)

3.7.2 Slot Assignment for the RFUs in a Base Station Working in GSM Only Mode

When a base station works in GSM only mode, the DRFU or GRFU slot assignment in a cabinet must comply with specific principles.

Site Type Description

The configuration principles for a dual-band GSM base station are similar. For example, the configuration principles for a dual-band base station (900 MHz and 1800 MHz) are similar to the principles for a dual-band (850 MHz and 1800 MHz) base station. The following description is based on a dual-band base station (900 MHz and 1800 MHz). & is used to separate 900 MHz band from 1800 MHz band in a dual-band base station. The GSM S4/4/4 & S4/4/4 configuration indicates a base station works in dual-band mode on the GSM side. S2/2/2(1G+1G+1G) indicates that a base station in S2/2/2 configuration is configured with one GRFU in each sector. GRFU is represented by G.

Numbering Scheme

l The sectors in a base station working in GSM only mode are numbered from G1 in a

numerical order, for example G1 and G2. Low-frequency sectors are numbered from G1 to G6, and high-frequency sectors are numbered from G7 to G12.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: A single-band base station supporting not more than three sectors for the band, with the configuration of GRFUs or DRFUs in a single RFC

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Table 3-27 describes the slot assignment for GRFUs or DRFUs when not more than three single-

band sectors are configured in a single RFC. If more than two GRFUs or DRFUs are configured for G1, the GRFU or DRFU that is not inserted can be preferentially positioned in slot 2 in cabinet 1. If more than two GRFUs or DRFUs are configured for G2, the GRFU or DRFU that is not inserted can be preferentially positioned in slot 4 in cabinet 1. If more than two GRFUs or DRFUs are configured for G3, the GRFU or DRFU that is not inserted can be preferentially positioned in slot 3 in cabinet 1.

Table 3-27 Slot assignment for GRFUs or DRFUs

Sector Number G1 G2 G3

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

Figure 3-39 GSM S4/4/4 (1G+1G+1G)

BTS3900

Hardware Description

Figure 3-40 GSM S10/10/8 (2G+2G+2G)

If more than three single-band sectors are configured in a single RFC, GRFUs or DRFUs are positioned in the slots from left to right in the RFC.

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Scenario 2: A dual-band base station supporting not more than three sectors for the band, with the configuration of GRFUs or DRFUs

Table 3-28 describes the slot assignment for GRFUs or DRFUs when not more than three sectors

are configured for each band in a single RFC.

Table 3-28 Slot assignment for GRFUs or DRFUs

Sector

G1 G2 G3 G7 G8 G9

Number

Cabinet 1 Slot 0 Slot 1 Slot 2 Slot 3 Slot 4 Slot 5

Figure 3-41 GSM S4/4/4 & S4/4/4 (1G+1G+1G & 1G+1G+1G)

Scenario 2: A dual-band base station supporting not more than three sectors for each band, with the configuration of GRFUs or DRFUs in two RFCs

If not more than three sectors are configured for each band, cabinet 1 is used for the band for which more GRFUs or DRFUs are configured. Cabinet 2 is used for the other band. If the same number of GRFUs or DRFUs are configured for each band, cabinet 1 is preferentially used for 900 MHz.

Table 3-29 Slot assignment for GRFUs or DRFUs

Sector

G1 G2 G3 G7 G8 G9

Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 1 or 2 Slot 2 or 3 Slot 4 or 5

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Figure 3-42 GSM S8/8/8 & S8/8/8 (2G+2G+2G & 2G+2G+2G)

BTS3900

Hardware Description

If more than two GRFUs or DRFUs are configured for G1 or G7, the GRFU or DRFU that is not inserted can be preferentially positioned in slot in G2 or G8. If more than two GRFUs or DRFUs are configured for G2 or G8, the GRFU or DRFU that is not inserted can be preferentially positioned in the slot in G1 or G7 and then in the slot in G3 or G9 when the slot is insufficient. If more than two GRFUs or DRFUs are configured for G3 or G9, the GRFU or DRFU that is not inserted can be preferentially positioned in slot in G2 or G8.

3.7.3 Slot Assignment for the RFUs in a Base Station Working in UMTS Only Mode

When a base station works in UMTS only mode, the WRFU slot assignment in a cabinet must comply with specific principles.

Numbering Scheme

l The sectors in a base station working in UMTS only mode are numbered from U1 in a

numerical order, for example U1 and U2.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: Three WRFUs for three sectors

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If three WRFUs are configured for three sectors, the WRFUs are preferentially positioned in slots 0, 2, and 4 in cabinet 1.

Figure 3-43 UMTS S1/1/1 (1W+1W+1W)

Scenario 1: Six WRFUs for three sectors

If six WRFUs are configured for three sectors, the WRFUs are positioned in the slots from left to right in cabinet 1.

Figure 3-44 UMTS S4/4/4 (2W+2W+2W)

3.7.4 Slot Assignment for the RFUs in a Base Station Working in LTE Only Mode

When a base station works in LTE only mode, the LRFU or MRFU slot assignment in a cabinet must comply with specific principles.

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Numbering Scheme

l The sectors in a base station working in LTE only mode are numbered from L1 in a

numerical order, for example L1 and L2. Low-frequency sectors are numbered from L1 to L6, and high-frequency sectors are numbered from L7 to L12.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: A single-band base station, with the configuration of LFRUs or MRFUs

Three single-band sectors

l When LRFUs are configured, they are preferentially positioned in the slots in cabinet 1.

That is, the LRFU configured for L1 is preferentially positioned in slot 0 and then slot 1 if slot 0 is occupied. The LRFU configured for L2 is preferentially positioned in slot 2 and then slot 3 if slot 2 is occupied. The LRFU configured for L3 is preferentially positioned in slot 4 and then slot 5 if slot 4 is occupied.

l When MRFUs are configured, they are preferentially positioned in the slots in cabinet 1.

That is, the MRFU configured for L1 is preferentially positioned in slot 0 and then slot 1 if slot 0 is occupied. The MRFU configured for L2 is preferentially positioned in slot 2 and then slot 3 if slot 2 is occupied. The MRFU configured for L3 is preferentially positioned in slot 4 and then slot 5 if slot 4 is occupied.

Table 3-30 describes the RFU slot assignment.

BTS3900

Hardware Description

Table 3-30 Slot assignment for MRFUs and LRFUs in a single-band base station

Sector Number

LRFU Slot 0 or 1 in cabinet1Slot 2 or 3 in cabinet1Slot 4 or 5 in cabinet

MRFU Slot 0 or 1 in cabinet1Slot 2 or 3 in cabinet1Slot 4 or 5 in cabinet

Figure 3-45 LRFU 2T2R 3 x 20 MHz

L1 L2 L3

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Figure 3-46 LRFU 4T4R 3 x 20 MHz

If more than three single-band sectors are configured and LRFUs are configured, the LRFUs are preferentially positioned in the slots from left to right in cabinet 1. If MRFUs are configured, they are preferentially positioned in the slots from left to right in cabinet 1. After all the slots in cabinet 1 are occupied, MRFUs can be positioned in the slots from left to right in cabinet 2.

Scenario 2: A dual-band base station, with the configuration of MRFUs and LFRUs

If three sectors are configured for each band, LRFUs are preferentially positioned in the slots in cabinet 2. That is, the LRFU configured for L1 is preferentially positioned in slot 0 and then slot 1 if slot 0 is occupied. The LRFU configured for L2 is preferentially positioned in slot 2 and then slot 3 if slot 2 is occupied. The LRFU configured for L3 is preferentially positioned in slot 4 and then slot 5 if slot 4 is occupied. MRFUs are preferentially positioned in the slots in cabinet

1. The MRFU configured for L1 is preferentially positioned in slot 0 and then slot 1 if slot 0 is occupied. The MRFU configured for L2 is preferentially positioned in slot 2 and then slot 3 if slot 2 is occupied. The MRFU configured for L3 is preferentially positioned in slot 4 and then slot 5 if slot 4 is occupied. Table 3-31 describes the RFU slot assignment.

Table 3-31 Slot assignment for MRFUs and LRFUs in a dual-band base station

Sector

L1 L2 L3 L7 L8 L9

Number

LRFU - - - Slot 0 or 1

in cabinet 2

MRFU Slot 0 or 1

in cabinet 1

Slot 2 or 3 in cabinet 1

Slot 4 or 5 in cabinet 1

- - -

Slot 2 or 3 in cabinet 2

Slot 4 or 5 in cabinet 2

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Figure 3-47 LRFU 3 x 20 MHz+MRFU 3 x 20 MHz

BTS3900

Hardware Description

If more than three sectors are configured for each band, LRFUs are preferentially positioned in the slots from left to right in cabinet 2, and MRFUs are preferentially positioned in the slots from left to right in cabinet 1. If more than six MRFUs are configured, MRFUs can be positioned in the slots from left to right in cabinet 2 after all the slots in cabinet 1 are occupied. Then, LRFUs are positioned to the right of the MRFUs.

3.7.5 Slot Assignment for the RFUs in a Base Station Working in GSM+UMTS Mode

When a base station works in GSM+UMTS mode, the RFU slot assignment in a cabinet must comply with specific principles.

Precautions for RFU Slot Assignment

l The 3900 series macro base station of SRAN5.0 supports the configurations of MRFUs,

hybrid configurations of GRFUs and MRFUs, and hybrid configurations of GRFUs and WRFUs. Hybrid configurations are used only for capacity expansion. The base station with the hybrid configurations of GRFUs and MRFUs does not support MIMO.

l In a base station, the RFUs in the same frequency band must be of the same type. For

example, in a GSM+UMTS base station with the configuration of GSM 900M S4/4/4/4 +UMTS 900M S1/1/1, four GSM sectors and three UMTS sectors are configured. In this case, MRFUs rather than GRFUs or DRFUs must be configured for the GSM sectors.

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Site Type Description

The configuration principles for a dual-band GSM base station are similar. For example, the configuration principles for a dual-band base station (900 MHz and 1800 MHz) are similar to the principles for a dual-band (850 MHz and 1800 MHz) base station. The following description is based on a dual-band base station (900 MHz and 1800 MHz). & is used to separate 900 MHz band from 1800 MHz band in a dual-band base station. The GSM S4/4/4 & S4/4/4+UMTS S1/1/1 configuration indicates that a dual-mode base station works in dual-band mode on the GSM side. S2/2/2 (1G+1G+1G) indicates that a base station in S2/2/2 configuration is configured with one GRFU in each sector. GRFU is represented by G, DRFU is represented by D, WRFU is represented by W, and MRFU is represented by M.

Numbering Scheme

l The sectors in a base station working in GSM only mode are numbered from G1 in a

numerical order, for example G1 and G2. Low-frequency sectors are numbered from G1 to G6, and high-frequency sectors are numbered from G7 to G12.

l The sectors in a base station working in UMTS only mode are numbered from U1 in a

numerical order, for example U1 and U2.

l The sectors in a multi-mode base station are numbered from M1 in a numerical order, for

example M1 and M2. Low-frequency sectors are numbered from M1 to M6, and highfrequency sectors are numbered from M7 to M12.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: A dual-mode base station working in single-band mode on the GSM side and supporting not more than three sectors for the band, with the configuration of GRFUs (or DRFUs) and WRFUs

If not more than three GSM sectors are configured , GRFUs or DRFUs are preferentially positioned in slots 0, 2, and 4 in cabinet 1. By default, WRFUs are positioned in slots 1, 3, and 5 in cabinet 1.

Table 3-32 Slot assignment for GRFUs (or DRFUs) and WRFUs

Sector Number

Cabinet 1 Slot 0 Slot 2 Slot 4 Slot 1 Slot 3 Slot 5

Cabinet 2 - - - - - -

G1 G2 G3 U1 U2 U3

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Figure 3-48 GSM 900M S4/4/4+UMTS 1800M S1/1/1

Scenario 2: A dual-mode base station working in dual-band mode on the GSM side and supporting not more than three sectors for each band, with the configuration of GRFUs (or DRFUs) and WRFUs

BTS3900

Hardware Description

If a dual-mode base station works in dual-band mode on the GSM side and not more than six GSM GRFUs or DRFUs are configured, the GRFUs or DRFUs are evenly positioned in the slots in cabinet 1. By default, WRFUs are positioned in slots 1, 3, and 5 in cabinet 2.

Table 3-33 Slot assignment for GRFUs (or DRFUs) and WRFUs

Secto

G1 G2 G3 G7 G8 G9 U1 U2 U3 r Num ber

Cabin

Slot 0 Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 - - et 1

Cabin

- - - - - - Slot 1 Slot 3 Slot 5

et 2

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Figure 3-49 GSM S4/4/4 & S4/4/4+UMTS 1800M S1/1/1

Scenario 3: A dual-mode base station working in dual-band mode and supporting not more than three sectors for each band, with the configuration of MRFUs

A base station supports not more than three sectors for each band and is configured with MRFUs in dual-band mode. Low-frequency MRFUs are positioned in slots 0, 2, and 4 in cabinet 1, and high-frequency MRFUs are positioned in slots 1, 3, and 5 in cabinet 1.

Table 3-34 RFU slot assignment for MRFUs

Sector

M1 M2 M3 M7 M8 M9

Number

Cabinet 1 Slot 0 Slot 2 Slot 4 Slot 1 Slot 3 Slot 5

Cabinet 2 - - - - - -

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Figure 3-50 GSM S4/2/2 & S4/4/4+UMTS 900M S1/1/1

Scenario 4: A dual-mode base station working in dual-band mode and supporting not more than three sectors for each band, with the configuration of GRFUs (or DRFUs) and MRFUs

RFUs for each band are positioned separately. MRFUs are positioned in the slots in cabinet 1, and GRFUs (or DRFUs) are positioned in the slots in cabinet 2.

BTS3900

Hardware Description

Table 3-35 RFU slot assignment for GRFUs (or DRFUs) and MRFUs

Sector

M1 M2 M3 G7 G8 G9

Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

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Figure 3-51 GSM S4/4/4 & S8/8/8+UMTS 900M S2/2/2 (900M: 2M+2M+2M, 1800M: 2G+2G +2G)

Scenario 5: A dual-mode base station supporting not more than three sectors for each band, with the configuration of MRFUs, GRFUs (or DRFUs), and WRFUs

A dual-mode base station supports not more than three sectors for each band and is configured with MRFUs, GRFUs (or DRFUs), and WRFUs. MRFUs and WRFUs are preferentially positioned in the slots in cabinet 1. GRFUs (or DRFUs) are preferentially positioned in the slots in cabinet 2.

Table 3-36 RFU slot assignment for MRFUs, GRFUs (or DRFUs), and WRFUs

Secto

M1 U1 M2 U2 M3 U3 G1 G2 G3 r Num ber

Cabin

Slot 0 Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 - - et 1

Cabin et 2

- - - - - - Slot 0 or 1

Slot 2 or 3

Slot 4 or 5

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Figure 3-52 3MRFU+6GRFU+3WRFU

BTS3900

Hardware Description

3.7.6 Slot Assignment for the RFUs in a Base Station Working in GSM+LTE Mode

When a base station works in GSM+LTE mode, the RFU slot assignment in a cabinet must comply with specific principles.

Precautions for RFU Slot Assignment

l The 3900 series macro base station of SRAN5.0 supports the configurations of MRFUs,

hybrid configurations of GRFUs and MRFUs, hybrid configurations of GRFUs and LRFUs, and hybrid configurations of MRFUs and LRFUs. Hybrid configurations are used only for capacity expansion. The base station with the hybrid configurations of GRFUs and MRFUs does not support MIMO.

l In a base station, the RFUs in the same frequency band must be of the same type.

Numbering Scheme

l The sectors in a base station working in GSM only mode are numbered from G1 in a

numerical order, for example G1 and G2. Low-frequency sectors are numbered from G1 to G6, and high-frequency sectors are numbered from G7 to G12.

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l The sectors in a base station working in LTE only mode are numbered from L1 in a

numerical order, for example L1 and L2.

l The sectors in a multi-mode base station are numbered from M1 in a numerical order, for

example M1 and M2. Low-frequency sectors are numbered from M1 to M6, and highfrequency sectors are numbered from M7 to M12.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: A dual-band base station, with the configuration of MRFUs for each band

Table 3-37 Slot assignment for MRFUs in a dual-band base station

Sector Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

Figure 3-53 MRFU900M 2T2R 3 x 20 MHz+MRFU1800M 2T2R 3 x 20 MHz

M1 M2 M3 M7 M8 M9

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Scenario 2: A dual-band base station, with the configuration of MRFUs and GRFUs

Table 3-38 Slot assignment for MRFUs and GRFUs in a dual-band base station

BTS3900

Hardware Description

Sector

M1 M2 M3 G7 G8 G9

Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

Figure 3-54 MRFU900M 2T2R 3 x 20 MHz+6GRFU1800M

Scenario 3: A dual-band base station, with the configuration of MRFUs and LRFUs

Table 3-39 Slot assignment for MRFUs and LRFUs in a dual-band base station

Sector

M1 M2 M3 L1 L2 L3

Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

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Figure 3-55 3 x 20 MHz 2T2R

Scenario 4: A dual-band base station, with the configuration of DRFUs (or GRFUs) and LRFUs

Table 3-40 Slot assignment for DRFUs (or GRFUs) and LRFUs in a dual-band base station

Sector

G1 G2 G3 L1 L2 L3

Number

Cabinet 1 Slot 0 or 1 Slot 2 or 3 Slot 4 or 5 - - -

Cabinet 2 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

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Figure 3-56 3GRFU+LRFU 3 x 20 MHz

BTS3900

Hardware Description

Scenario 5: A tri-band base station, with the configuration of MRFUs, GRFUs, and LRFUs

Table 3-41 Slot assignment for MRFUs, GRFUs, and LRFUs in a tri-band base station

Secto

M1 M2 M3 G7 G8 G9 L1 L2 L3 r Num ber

Cabin et 1

Cabin

Slot 0

or 1

Slot 2 or 3

Slot 4 or 5

- - - - - -

- - - Slot 0 Slot 2 Slot 4 Slot 1 Slot 3 Slot 5

et 2

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Figure 3-57 MRFU900M 3 x 20 MHz+3GRFU1800M+LRFU 3 x 20 MHz

3.7.7 Slot Assignment for the RFUs in a Base Station Working in UMTS+LTE Mode

When a base station works in UMTS+LTE mode, the RFU slot assignment in a cabinet must comply with specific principles.

Numbering Scheme

l The sectors in a base station working in UMTS only mode are numbered from U1 in a

numerical order, for example U1 and U2.

l The sectors in a base station working in LTE only mode are numbered from L1 in a

numerical order, for example L1 and L2.

l The slots are numbered from 0 in a numerical order, for example slot 0, slot 1, and slot 2.

A slot can be identified through cabinet number+slot number, for example, slot 1 in cabinet 1 (primary RFC).

Principles for RFU Slot Assignment

Scenario 1: A dual-mode base station, with the configuration of WRFUs and LRFUs

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Table 3-42 Slot assignment for WRFUs and LRFUs

BTS3900

Hardware Description

Sector

L1 L2 L3 U1 U2 U3

Number

Cabinet 1 - - - Slot 0 or 1 Slot 2 or 3 Slot 4 or 5

Cabinet 2 Slot 1 Slot 3 Slot 5 - - -

Figure 3-58 UMTS S1/1/1+LTE 3 x 20 MHz

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4 BTS3900 Components

About This Chapter

4.1 BBU3900 Equipment

This describes the BBU3900 equipment in terms of the appearance, boards and their panels, module, LEDs, ports, and engineering specifications.

4.2 GRFU

The GSM Radio Frequency Unit (GRFU) is designed on the basis of multi-transceiver technology. One GRFU supports 6 carriers.

4.3 DRFU

The Double Radio Frequency Unit (DRFU) is a dual-density RF unit. A DRFU processes two carriers.

4.4 WRFU

One WCDMA Radio Filter Unit (WRFU) supports 2 carriers or 4 carriers.

4.5 MRFU

One Multi-Mode Radio Frequency Unit (MRFU) supports a maximum of six carriers.

4.6 LRFU

LTE Radio Frequency Units (LRFUs) work in Frequency Division Duplex (FDD) mode.

4.7 DCDU-01

The Direct Current Distribution Unit-01 (DCDU-01) supplies DC power to each component in the cabinet.

4.8 Fan Box

A fan box consists of a fan tray, four fans, and an FMU.

4.9 GATM

The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.

4.10 ELU

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The Electronic Label Unit (ELU) reports the cabinet type information to the fan box.

4.11 Power Equipment (DC/DC)

The power equipment (DC/DC) converts +24 V DC power into -48 V DC power.

4.12 Power Equipment (AC/DC)

The power equipment (AC/DC) converts 220 V AC power into -48 V DC power.

BTS3900

Hardware Description

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4.1 BBU3900 Equipment

This describes the BBU3900 equipment in terms of the appearance, boards and their panels, module, LEDs, ports, and engineering specifications.

The BBU3900 has the following functions:

l Provides ports for communication between the base station and the BSC/RNC

l Provides CPRI ports for the communication with the RF modules

l Provides USB ports, which facilitates automatic base station upgrade by allowing a USB

disk to be used for software installation and data configuration

l Provides an OM channel between the base station and the LMT or the M2000

l Processes uplink and downlink data

l Manages the entire dual-mode system in terms of OM and signaling processing

l Provides the system clock

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 describes the boards and module of the BBU3900 in terms of their configuration principles, 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 4-1 BBU3900

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 4-2 shows the position of the ESN.

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l If there is no label on the FAN unit of the BBU, the ESN is printed on the mounting ears

BTS3900

Hardware Description

Figure 4-2 The position of the ESN (1)

of the BBU. Figure 4-3 shows the position of the ESN.

Figure 4-3 The position of the ESN (2)

4.1.2 Boards and Module of the BBU3900

This describes the boards and module of the BBU3900 in terms of their configuration principles, functions, ports, LEDs, and DIP switches.

GTMU

The GSM Transmission & Timing & Management Unit for BBU (GTMU) is the basic transmission and control function entity of the BBU. It provides the reference clock, maintenance port, and external alarm collection port, monitors the power supply, and controls and manages the entire base station.

Panel

The GTMU is classified into two types: GTMU and GTMUb. Figure 4-4 and Figure 4-5 show the panels of the GTMU and GTMUb.

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Figure 4-4 GTMU panel

Figure 4-5 GTMUb panel

Functions

NOTE

The GTMU hereinafter mentioned in this document is the first type.

The GTMU and GTMUb have the following functions:

l Controls and manages the base station

l Supports fault management system, configuration management system, performance

management system, and security management system

l Monitors the fans and power modules

l Provides and manages the clock source of the base station in centralized mode

l Provides the clock output for test

l Provides the FE port for maintenance on the OM system

l Supports transmission through four E1s and two FEs

l Provides CPRI ports for communication between the BBU and the RFUs

l The GTMUb supports interconnected BBUs.

l Four IDX2 ports on the backplane of the GTMUb can achieve the function of baseband

resource pool backup.

LEDs

Table 4-1 describes the LEDs on the GTMU.

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Table 4-1 LEDs on the GTMU

LED Color Status Description

RUN Green ON The board is faulty.

BTS3900

Hardware Description

OFF There is no power supply, or the

board is faulty.

ON for 1s and OFF

The board is running properly.

for 1s

ON for 2s and OFF

The board is being tested.

for 2s

ON for 0.125s and OFF for 0.125s

Software is being loaded to the board.

ALM Red ON An alarm is generated,

indicating a running fault.

OFF The board is running properly.

ACT Green ON The board is in the active state.

OFF The board is in the standby state.

Besides the preceding three LEDs, there are LEDs indicating the connection status of the FE optical port, FE electrical port, CPRI port and commissioning port. Each of the LEDs is positioned near the relevant port without any label on the panel of the board. Table 4-2 describes the LEDs and their status.

Table 4-2 LEDs and their status

LED

Color Status Description

LIU0 to LIU3 Green ON The link is in the idle

state.

ON for 0.125s and OFF for 0.125s

An E1/T1 remote alarm is generated.

OFF The link is

functional.

CPRI0 to CPRI5 Green ON The CPRI link is

functional.

Red ON The optical module

fails to receive signals.

ETH Green (LINK LED

on the left)

ON The connection is set

up successfully.

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LED Color Status Description

OFF No connection is set

up.

Orange (ACT LED on the right)

FE0 Green (LINK LED

on the left)

Orange (ACT LED on the right)

FE1(GTMUb) Green (LINK LED

on the left)

Green (ACT LED on the right)

Blinking Data is being

transmitted.

OFF No data is being

transmitted.

ON The connection is set

up successfully.

OFF No connection is set

up.

Blinking Data is being

transmitted.

OFF No data is being

transmitted.

ON The connection is set

up successfully.

OFF No connection is set

up.

Blinking Data is being

transmitted.

Ports

OFF No data is being

transmitted.

M_S (GTMUb) - - This is the LED of the

reserved port.

EXT (GTMUb) - - This is the LED of the

reserved port.

Table 4-3 describes the ports on the GTMU.

Table 4-3 Ports on the GTMU

Label

CPRI0 to CPRI5 SFP female Data transmission port interconnected to the RFU.

EXT (GTMUb) SFP female Obligate

Connector Description

It supports the input and output of optical and electrical transmission signals

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Label Connector Description

ETH RJ-45 connector Local maintenance and debugging port

FE0 RJ-45 connector Connected to the routers in the equipment room

FE1 DLC connector Connected to the routers in the equipment room

USB USB connector Used for automatic software upgrade through the

TST USB connector Provides a reference clock for the tester

BTS3900

Hardware Description

through FE cables to transmit network information

through optical cables to transmit network information

USB disk

DIP Switches

E1/T1 DB26 female

connector

Used for four E1/T1 inputs and outputs between the GTMU and the UELP or between BSCs

The RST button on the panel of the GTMU is used for resetting the board.

On the GTMU, there are five DIP switches, each of which has four bits. DIP switches S1 and S2 must be set together. The functions of the five DIP switches are as follows:

l S1 is used to select the E1 resistance. Table 4-4 provides details on the DIP switch.

l S2 is used to select the grounding mode of E1/T1 cables. Table 4-5 provides details on the

DIP switch.

l S3 is reserved.

l S4 is used to select the E1 bypass. Table 4-6 provides details on the DIP switch.

l S5 is used for timeslot settings when the E1 bypass is selected. Table 4-7 provides details

on the DIP switch.

Table 4-4 Details of the DIP Switch S1

DIP

Bit Status Description

Switch

1 2 3 4

S1 ON ON OFF OFF The E1 resistance is set to

OFF ON OFF OFF The E1 resistance is set to

ON OFF OFF OFF The T1 resistance is set to

Others Unavailable

4-8 Huawei Proprietary and Confidential

75 ohm.

120 ohm.

100 ohm.

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