RRU3008 (DC) V2 Hardware Description(Draft a)(PDF)-En

RRU3008 (DC) V2

Hardware Description

Issue Draft A

Date 2011-01-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent 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. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase 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 representationsof any kind, either express or implied.

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

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue Draft A (2011-01-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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http://www.huawei.com

mailto:[email protected]

About This Document

PurposeThis document provides reference for planning and deploying an RRU3008 (DC) V2 (referredto as RRU in this document). It presents the exterior and describes the ports, functions, cabletypes, connector specifications, and cable connections of the RRU.

Product VersionThe following table lists the product version related to this document.

Product Name Product Version

DBS3900 GSM V100R013

Intended AudienceThis document is intended for:

l Base station installation engineersl System engineersl Site maintenance engineers

Organization1 Changes in the RRU3008 (DC) V2 Hardware Description

This chapter describes the changes in the RRU3008 (DC) V2 Hardware Description.

2 RRU

The RRU is a type of radio remote unit.

3 RRU Cables

This chapter describes RRU cables.

RRU3008 (DC) V2Hardware Description About This Document


iii

4 RRU Auxiliary Devices

This chapter describes RRU auxiliary devices.

ConventionsSymbol 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 notavoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk, whichif not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation, which if notavoided, could result in equipment damage, data loss,performance degradation, or unexpected results.

Indicates a tip that may help you solve a problem or savetime.

Provides additional information to emphasize or supplementimportant 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 inboldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Examples of information displayed on the screen are inCourier New.

Command Conventions

The command conventions that may be found in this document are defined as follows.


Boldface The keywords of a command line are in boldface.

About This DocumentRRU3008 (DC) V2


iv Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Issue Draft A (2011-01-30)


Italic Command arguments are in italics.

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

{ x | y | ... } Optional items are grouped in braces and separated byvertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated byvertical bars. One item is selected or no item is selected.

{ x | y | ... }* Optional items are grouped in braces and separated byvertical bars. A minimum of one item or a maximum of allitems can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated byvertical 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.


Boldface Buttons, menus, parameters, tabs, window, and dialog titlesare 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.

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 meansthe two keys should be pressed in turn.

Mouse Operations

The mouse operations that may be found in this document are defined as follows.

RRU3008 (DC) V2Hardware Description About This Document


v

Action Description

Click Select and release the primary mouse button without movingthe pointer.

Double-click Press the primary mouse button twice continuously andquickly without moving the pointer.

Drag Press and hold the primary mouse button and move thepointer to a certain position.

About This DocumentRRU3008 (DC) V2


vi Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.


Contents

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

1 Changes in the RRU3008 (DC) V2 Hardware Description.................................................1-1

2 RRU...............................................................................................................................................2-12.1 RRU Exterior...................................................................................................................................................2-22.2 RRU Ports.......................................................................................................................................................2-22.3 RRU LEDs......................................................................................................................................................2-4

3 RRU Cables.................................................................................................................................3-13.1 RRU Cable List...............................................................................................................................................3-33.2 RRU PGND Cable..........................................................................................................................................3-43.3 RRU Power Cable...........................................................................................................................................3-53.4 RRU Alarm Cable...........................................................................................................................................3-63.5 CPRI Optical Fiber..........................................................................................................................................3-73.6 SFP High-Speed Cable for Cascading RRUs................................................................................................3-103.7 RRU RF Jumper............................................................................................................................................3-103.8 Inter-RRU RF Cable......................................................................................................................................3-113.9 RRU AISG Multi-Core Cable.......................................................................................................................3-113.10 RRU AISG Extension Cable.......................................................................................................................3-13

4 RRU Auxiliary Devices.............................................................................................................4-14.1 IFS06...............................................................................................................................................................4-24.2 OCB.................................................................................................................................................................4-3

RRU3008 (DC) V2Hardware Description Contents


vii

Figures

Figure 2-1 RRU exterior.......................................................................................................................................2-2Figure 2-2 RRU dimensions.................................................................................................................................2-2Figure 2-3 RRU ports on panels...........................................................................................................................2-3Figure 3-1 PGND cable........................................................................................................................................3-4Figure 3-2 Two-hole terminal.............................................................................................................................. 3-5Figure 3-3 RRU power cable................................................................................................................................3-5Figure 3-4 Alarm cable.........................................................................................................................................3-6Figure 3-5 Optical fiber between a BBU and an RRU or between RRUs........................................................... 3-7Figure 3-6 Connections for a CPRI optical fiber between a BBU and an RRU.................................................. 3-8Figure 3-7 Single-mode optical fiber between a BBU and an ODF or between an ODF and an RRU............... 3-8Figure 3-8 Connections for a single-mode optical fiber between a BBU and an ODF or between an ODF and anRRU.......................................................................................................................................................................3-9Figure 3-9 SFP high-speed cable for cascading RRUs......................................................................................3-10Figure 3-10 RF jumper.......................................................................................................................................3-11Figure 3-11 Inter-RRU RF cable........................................................................................................................3-11Figure 3-12 AISG multi-core cable....................................................................................................................3-12Figure 3-13 AISG extension cable.....................................................................................................................3-13Figure 4-1 IFS06.................................................................................................................................................. 4-2Figure 4-2 IFS06 structure .................................................................................................................................. 4-3Figure 4-3 Application scenario of an OCB.........................................................................................................4-4

RRU3008 (DC) V2Hardware Description Figures


ix

Tables

Table 2-1 RRU ports and LEDs on panels...........................................................................................................2-3Table 2-2 RRU LEDs...........................................................................................................................................2-4Table 3-1 RRU cables...........................................................................................................................................3-3Table 3-2 Pin assignment for the wires of a DC power input cable (North American Standard)........................3-5Table 3-3 Pin assignment for the wires of a DC power input cable (European Standard)...................................3-6Table 3-4 Pin assignment for the wires of an RRU alarm cable.......................................................................... 3-6Table 3-5 Labels on and recommended connections for optical fibers of an optical assembly between a BBU andan RRU..................................................................................................................................................................3-9Table 3-6 Labels on and recommended connections for optical fibers of an optical assembly between RRUs...............................................................................................................................................................................3-9Table 3-7 Labels on and recommended connections for optical fibers of a single-mode optical assembly betweena BBU and an ODF or between an ODF and an RRU........................................................................................3-10Table 3-8 Pin assignment for the wires of an AISG multi-core cable................................................................3-12Table 3-9 Pin assignment for the wires of an AISG extension cable.................................................................3-14Table 4-1 IFS06 specifications.............................................................................................................................4-3

RRU3008 (DC) V2Hardware Description Tables


xi

1 Changes in the RRU3008 (DC) V2 HardwareDescription

This chapter describes the changes in the RRU3008 (DC) V2 Hardware Description.

Draft A (2011-01-30)This is the draft.

Compared with the GSM-BTS V100R012C00, this issue does not add any information.

Compared with the GSM-BTS V100R012C00, this issue incorporates the following changes:

Topic Change Description

2.2 RRU Ports The title RRU Panels is changed to RRUPorts.

Compared with the GSM-BTS V100R012C00, this issue does not remove any information.

RRU3008 (DC) V2Hardware Description 1 Changes in the RRU3008 (DC) V2 Hardware Description


1-1

2 RRU

About This Chapter

The RRU is a type of radio remote unit.

The RRU implements the following functions:

l Receives downlink baseband data from the BBU and sends uplink baseband data for thecommunication between the BBU and the RRU.

l Receives RF signals from the antenna system, down-converts the received signals to IFsignals, amplifies the IF signals, and performs analog-to-digital conversion. The TXchannel filters downlink signals, performs digital-to-analog conversion, and up-convertsRF signals to the TX band.

l Multiplexes RX and TX signals, which enables these signals to share the same antennapath. It also filters the RX and TX signals.

2.1 RRU ExteriorThis section describes RRU exterior and dimensions.

2.2 RRU PortsAn RRU has a bottom panel, cabling cavity panel, and LED panel. RRU ports are positioned onthe RRU panels.

2.3 RRU LEDsThere are six LEDs on an RRU. They indicate the running status.

RRU3008 (DC) V2Hardware Description 2 RRU


2-1

2.1 RRU ExteriorThis section describes RRU exterior and dimensions.

Figure 2-1 shows an RRU.

The RRU on the left has a housing, and the RRU on the right does not have a housing.

Figure 2-1 RRU exterior

Figure 2-2 shows RRU dimensions.

Figure 2-2 RRU dimensions

2.2 RRU PortsAn RRU has a bottom panel, cabling cavity panel, and LED panel. RRU ports are positioned onthe RRU panels.

Figure 2-3 shows RRU ports on the panels.

2 RRURRU3008 (DC) V2


2-2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.


Figure 2-3 RRU ports on panels

Table 2-1 describes RRU ports and LEDs on the panels.

Table 2-1 RRU ports and LEDs on panels

Item Label Description

(1) Ports at the bottom RX_IN/OUT Port for the inter-RRU RF cable

RET Communication port for the RET antenna

ANT_TX/RXA TX/RX port A



2-3

Item Label Description

ANT_TX/RXB TX/RX port B

(2) Ports in the cablingcavity

RTN(+) Power supply socket

NEG(-)

RX TX CPRI0 Optical/electrical port 0

TX RX CPRI1 Optical/electrical port 1

EXT_ALM Port for alarm reporting

(3) LEDs RUN For details, see 2.3 RRU LEDs.

ALM

ACT

VSWR

CPRI0

CPRI1

2.3 RRU LEDsThere are six LEDs on an RRU. They indicate the running status.

For detailed positions of RRU LEDs, see 2.2 RRU Ports.

Table 2-2 describes RRU LEDs.

Table 2-2 RRU LEDs

LED Color Status Description

RUN Green On There is power supply, but the module isfaulty.

Off There is no power supply, or the module isfaulty.

Blinking (on for1s and off for 1s)

The module is working properly.

Blinking (on for0.125s and off for0.125s)

Software is being loaded to the module, orthe module is not started.

ALM Red On Alarms are generated, and the module mustbe replaced.

2 RRURRU3008 (DC) V2




LED Color Status Description


Alarms are generated. The alarms may becaused by the faults on the related boards orports. Therefore, the necessity for modulereplacement is uncertain.

Off No alarm is generated.

ACT Green On The module is working properly with TXchannels enabled.


The module is working properly with TXchannels disabled.

VSWR Red Off No VSWR alarm is generated.

Blinking red (onfor 1s and off for1s)

VSWR alarms are generated on theANT_TX/RXB port.

Steady red VSWR alarms are generated on theANT_TX/RXA port.

Blinking red (onfor 0.125s and onfor 0.125s)

VSWR alarms are generated on theANT_TX/RXA and ANT_TX/RXB ports.

CPRI0 Red andgreen

Steady green The CPRI link is available.

Steady red The optical module fails to receive signals.


The CPRI link is out of lock.

Off The SFP module is not properly installed, orthe optical module is powered off.

CPRI1 Red andgreen

Steady green The CPRI link is available.

Steady red The optical module fails to receive signals.


The CPRI link is out of lock.

Off The SFP module is not properly installed, orthe optical module is powered off.



2-5

3 RRU Cables

About This Chapter

This chapter describes RRU cables.

3.1 RRU Cable ListThis section describes RRU cable connections.

3.2 RRU PGND CableAn RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of theRRU.

3.3 RRU Power CableThe RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU.

3.4 RRU Alarm CableThe RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an externaldevice to RRUs so that the base station monitors the operating status of external devices.

3.5 CPRI Optical FiberCPRI optical fibers are classified into multi-mode optical fibers and single-mode optical fibers.They transmits CPRI signals.

3.6 SFP High-Speed Cable for Cascading RRUsAn SFP high-speed cable for cascading RRUs connects CPRI ports between two RRUs andtransmits CPRI signals between RRUs.

3.7 RRU RF JumperThe 1/2" RRU RF jumper transmits and receives RF signals between an RRU and an antenna.

3.8 Inter-RRU RF CableAn inter-RRU RF cable connects to RX_IN/OUT ports on two RRUs to implement the inter-RRU connections in one cell.

3.9 RRU AISG Multi-Core CableAn RRU AISG multi-core cable is 5 m (16.4 ft.) long. It connects an RRU and an RCU to transmitcontrol signals from a base station to the RET antenna. When the RRU is connected to the RETantenna, an AISG multi-core cable transmits RS485 signals.

3.10 RRU AISG Extension Cable

RRU3008 (DC) V2Hardware Description 3 RRU Cables


3-1

When the distance between an RRU and an RCU is longer than 5 m (16.4 ft.), an AISG multi-core cable cannot connect the RRU and the RCU because it is not long enough. In this case, anAISG extension cable is used to extend the AISG multi-core cable for transmitting RS485signals.

3 RRU CablesRRU3008 (DC) V2




3.1 RRU Cable ListThis section describes RRU cable connections.

Table 3-1 lists RRU cables.

Table 3-1 RRU cables

Cable One End The Other End

Connector InstallationPosition


3.2 RRUPGNDCable

OT terminal(M6, 16 mm2

[0.02 in.2])

Groundterminal on theRRU

Preparedonsite tomatch theground bar

Ground terminal onthe ground bar

3.3 RRUPower Cable

Easy powerreceptacle(pressfit type)connector

NEG(-) andRTN(+) portson the RRU

Easy powerreceptacle(pressfittype)connector

RRU0 to RRU5 on theEPS

OT terminal(M4, 3.3mm2 [0.005in.2]),complyingwith NorthAmericanstandards)OT terminal(M4, 4 mm2

[0.006 in.2]),complyingwithEuropeanstandards)

LOAD0 to LOAD5ports on the DCDULOAD4 to LOAD9 onthe PDU

3.5 CPRIOpticalFiber

DLC connector RX TX CPRI0on the RRU

DLCconnector

CPRI port on theGTMU in the BBU

TX RX CPRI1port on the RRU

RX TX CPRI0 on theRRU

3.6 SFPHigh-SpeedCable forCascadingRRUs

SFP200 maleconnector

TX RX CPRI1port on the RRU

SFP200 maleconnector

RX TX CPRI0 on theRRU



3-3

Cable One End The Other End



3.7 RRU RFJumper

DIN maleconnector

ANT_TX/RXAor ANT_TX/RXB port on theRRU

DIN maleconnector

Antenna system

3.8 Inter-RRU RFCable

DB2W2connector

RX_IN/OUTport on the RRU

DB2W2connector

RX_IN/OUT port onthe RRU

3.4 RRUAlarm Cable

DB15connector

EXT_ALMport on the RRU

Cord endterminal

External alarm device

3.9 RRUAISG Multi-Core Cable

DB9 waterproofconnector

RET port on theRRU

StandardAISG femaleconnector

Standard AISG maleconnector on the RCUor on the AISGextension cable

3.10 RRUAISGExtensionCable

Standard AISGmale connector

Standard AISGfemaleconnector onthe AISG multi-core cable

StandardAISG femaleconnector

Standard AISG maleconnector on the RCU

3.2 RRU PGND CableAn RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of theRRU.

Exterior

An RRU PGND cable is green and yellow with a cross-sectional area of 16 mm2 (0.02 in.2).Both ends of the cable are OT terminals. If the customer prepares the PGND cable, a copper-core cable with a cross-sectional area of 16 mm2 (0.02 in.2) is recommended. Figure 3-1 showsa PGND cable.

Figure 3-1 PGND cable

(1) OT terminal (M6, 16 mm2 [0.02 in.²])





OT terminals must be added to both ends of a PGND cable onsite. You can determine the colorof the cable and whether to use two-hole terminals based on local regulations.

Figure 3-2 shows a two-hole terminal.

Figure 3-2 Two-hole terminal

3.3 RRU Power CableThe RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU.

Exterior

An RRU power cable has an easy power receptacle (pressfit type) connector at one end and abare wire at the other end. A corresponding terminal is added to the bare wire based on therequirements of the connector on the external power device, as shown in Figure 3-3.

Figure 3-3 RRU power cable

(1) RTN(+) (2) NEG(-)

Pin Assignment

The DC power input cable is a 2-wire cable. Table 3-2 and Table 3-3 describe the pin assignmentfor the wires of a DC power input cable.

Table 3-2 Pin assignment for the wires of a DC power input cable (North American Standard)

Wire Color

NEG(-) Blue

RTN(+) Black



3-5

Table 3-3 Pin assignment for the wires of a DC power input cable (European Standard)

Wire Color

NEG(-) Blue

RTN(+) Brown

3.4 RRU Alarm CableThe RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an externaldevice to RRUs so that the base station monitors the operating status of external devices.

ExteriorAn alarm cable has a DB15 connector at one end and eight cord end terminals at the other end,as shown in Figure 3-4.

Figure 3-4 Alarm cable

(1) DB15 waterproof connector (2) Cord end terminal

Pin AssignmentTable 3-4 describes the pin assignment for the wires of an RRU alarm cable.

Table 3-4 Pin assignment for the wires of an RRU alarm cable

RRUAlarmPort

Pin of theDB15Connector

Color Type Cord EndTerminal

Description

Drycontact

X1.2 White andblue

Twistedpair

X2 SWITCH_INPUT0+

X1.3 Blue X3 SWITCH_INPUT0-(GND)

X1.6 White andorange

Twistedpair

X4 SWITCH_INPUT1+





RRUAlarmPort

Pin of theDB15Connector

Color Type Cord EndTerminal

Description

X1.7 Orange X5 SWITCH_INPUT1-(GND)

RS485 X1.10 White andgreen

Twistedpair

X6 APM RX-

X1.11 Green X7 APM RX+

X1.13 White andbrown

Twistedpair

X8 APM TX-

X1.14 Brown X9 APM TX+

3.5 CPRI Optical FiberCPRI optical fibers are classified into multi-mode optical fibers and single-mode optical fibers.They transmits CPRI signals.

NOTE

l When the distance between a BBU and an RRU or between two RRUs is shorter than 100 m (328. 08ft.), a multi-mode optical fiber is used. When the distance is longer than or equal to 100 m (328. 08ft.), a single-mode optical fiber is used.

l A single-mode optical fiber connects a BBU to an ODF or connects an ODF to an RRU.

Exterior

Figure 3-5 shows an optical fiber between a BBU and an RRU or between RRUs, with a DLCconnector at each end.

Figure 3-5 Optical fiber between a BBU and an RRU or between RRUs

(1) DLC connector (2) Optical fiber (3) Label on the optical fiber

When a multi-mode optical fiber connects a BBU and an RRU, the optical fibers on the BBUside and RRU side are 0.34 m (13.39 in.) and 0.03 m (1.18 in.) long, respectively. When a multi-mode optical fiber connects to two RRUs, the optical fibers on both RRU sides are 0.03 m (1.18in.) long.

Figure 3-6 shows the connections for a CPRI optical fiber between a BBU and an RRU.



3-7

Figure 3-6 Connections for a CPRI optical fiber between a BBU and an RRU

(1) CPRI optical fiber between a BBU and an RRU

Figure 3-7 shows a single-mode optical fiber between a BBU and an ODF or between an ODFand an RRU, with a DLC connector at one end and an FC connector at the other end.

Figure 3-7 Single-mode optical fiber between a BBU and an ODF or between an ODF and anRRU

(1) DLC connector (2) Optical fiber

(3) Label on the optical fiber (4) FC connector

When a single-mode optical fiber connects a BBU and an ODF, the optical fibers on the BBUside and ODF side are 0.34 m (13.39 in.) and 0.8 m (31.5 in.) long, respectively.

When a single-mode optical fiber connects an ODF and an RRU, the optical fibers on the RRUside and ODF side are 0.03 m (1.18 in.) and 0.8 m (31.5 in.) long, respectively.

Figure 3-8 shows the connections for a single-mode CPRI optical fiber between a BBU and anODF or between an ODF and an RRU.





Figure 3-8 Connections for a single-mode optical fiber between a BBU and an ODF or betweenan ODF and an RRU

(1) Single-mode optical fiber between a BBU and an ODF or between an ODF and an RRU

NOTE

A CPRI optical fiber must be connected to optical modules in the CPRI ports. A multi-mode optical fiber andsingle-mode optical fiber are connected to multi-mode optical modules and single-mode optical modules,respectively.

Pin AssignmentTable 3-5, Table 3-6, and Table 3-7 describe the labels on and recommended connections foroptical fibers of an optical assembly.

Table 3-5 Labels on and recommended connections for optical fibers of an optical assemblybetween a BBU and an RRU

Label Color Installation Position

1A Orange CPRI RX port on the RRU

1B Gray CPRI TX port on the RRU

2A Orange TX port on the BBU

2B Gray RX port on the BBU

Table 3-6 Labels on and recommended connections for optical fibers of an optical assemblybetween RRUs


1A Orange CPRI RX port on RRU 1

1B Gray CPRI TX port on RRU 1

2A Orange CPRI TX port on RRU 0



3-9


2B Gray CPRI RX port on RRU 0

Table 3-7 Labels on and recommended connections for optical fibers of a single-mode opticalassembly between a BBU and an ODF or between an ODF and an RRU


1A Yellow RX port on the BBU or CPRI RX porton the RRU

1B Blue TX port on the BBU or CPRI TX port onthe RRU

2A Yellow ODF

2B Blue ODF

3.6 SFP High-Speed Cable for Cascading RRUsAn SFP high-speed cable for cascading RRUs connects CPRI ports between two RRUs andtransmits CPRI signals between RRUs.

ExteriorFigure 3-9 shows an SFP high-speed cable for cascading RRUs.

Figure 3-9 SFP high-speed cable for cascading RRUs

3.7 RRU RF JumperThe 1/2" RRU RF jumper transmits and receives RF signals between an RRU and an antenna.





NOTE

l When the distance between an RRU and an antenna is within 14 m (45.93 ft.), connect one end of the RFjumper to the ANT-TX/RXA or ANT-TX/RXB port at the RRU bottom, and connect the other end to theantenna.

l When the distance between the RRU and the antenna exceeds 14 m (45.93 ft.), connect an RF jumper toeach end of the feeder. Then, connect the RF jumpers to the RRU and to the antenna. If the customer preparesthe RF jumper, the length of the RF jumper should not exceed 2 m (6.56 ft.) and be as short as possible.

ExteriorAn RF jumper has a DIN male connector at one end and a customized connector at the otherend.

Figure 3-10 shows an RF jumper with a DIN male connector at each end.

Figure 3-10 RF jumper

(1) DIN male connector

3.8 Inter-RRU RF CableAn inter-RRU RF cable connects to RX_IN/OUT ports on two RRUs to implement the inter-RRU connections in one cell.

ExteriorFigure 3-11 shows an inter-RRU RF cable with a DB2W2 connector at each end.

Figure 3-11 Inter-RRU RF cable

(1) DB2W2 connector

3.9 RRU AISG Multi-Core CableAn RRU AISG multi-core cable is 5 m (16.4 ft.) long. It connects an RRU and an RCU to transmitcontrol signals from a base station to the RET antenna. When the RRU is connected to the RETantenna, an AISG multi-core cable transmits RS485 signals.



3-11

NOTE

An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from abase station and runs the commands to drive the stepper motor. Using a gear, the stepper motor drives theadjustable phase shifter in the antenna and changes the downtilt angle.

ExteriorAn AISG multi-wire cable has a DB9 waterproof connector at one end and a standard AISGfemale connector at the other end, as shown in Figure 3-12.

Figure 3-12 AISG multi-core cable

(1) DB9 waterproof male connector (2) Standard AISG female connector

Pin AssignmentTable 3-8 describes the pin assignment for the wires of an AISG multi-core cable.

Table 3-8 Pin assignment for the wires of an AISG multi-core cable

X1 (Pin for theDB9 WaterproofConnector)

X2 End (Pin of theStandard AISGFemale Connector)

Color Type Description

X1.1 X2.1White andblue Twisted

pair +12VBlue

X1.3 X2.3 White andorange Twisted

pair

RS485 B

X1.5 X2.5 Orange RS485 A

X1.4 X2.4 White andgreen

- RS485 GND

X1.9 is connected toX1.4.

- - - RS485 GND





X1 (Pin for theDB9 WaterproofConnector)

X2 End (Pin of theStandard AISGFemale Connector)


- X2.1 is connected toX2.6.

- - +12V

- X2.4 is connected toX2.7.

- - RS485 GND

3.10 RRU AISG Extension CableWhen the distance between an RRU and an RCU is longer than 5 m (16.4 ft.), an AISG multi-core cable cannot connect the RRU and the RCU because it is not long enough. In this case, anAISG extension cable is used to extend the AISG multi-core cable for transmitting RS485signals.

ExteriorAn AISG extension cable has a standard AISG male connector at one end and a standard AISGfemale connector at the other end, as shown in Figure 3-13.

Figure 3-13 AISG extension cable

(1) Standard AISG male connector (2) Standard AISG female connector

Pin AssignmentTable 3-9 describes the pin assignment for the wires of an AISG extension cable.



3-13

Table 3-9 Pin assignment for the wires of an AISG extension cable

X1 End (Pinof theStandardAISG MaleConnector)

X2 End (Pinof theStandardAISGFemaleConnector)


X1.1 X2.1 White and blue Twisted pair +12V

Blue

X1.7 X2.7 White and orange Twisted pair DC Return A

Orange

X1.3 X2.3 White and green Twisted pair RS485 B

X1.5 X2.5 Green RS485 A

X1.6 X2.6 White and brown Twisted pair +24V

Brown





4 RRU Auxiliary Devices

About This Chapter

This chapter describes RRU auxiliary devices.

4.1 IFS06An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs in centralizedmode.

4.2 OCBAn Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.Power cables shipped with RRUs cannot support long-distance power supply. Therefore, whenpower supply is far from the equipment, cables with large core diameters are used, and an OCBconnects these cables and RRU power cables.

RRU3008 (DC) V2Hardware Description 4 RRU Auxiliary Devices


4-1

4.1 IFS06An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs in centralizedmode.

ExteriorFigure 4-1 shows an IFS06.

Figure 4-1 IFS06

Functionl It can be installed on the ground.l It supports the installation of six RRUs.l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for

heights of RRUs.

StructureThe IFS06 consists of the main frame, cable tray, upper and lower adjustable beams, and frontand rear feet, as shown in Figure 4-2.

4 RRU Auxiliary DevicesRRU3008 (DC) V2




Figure 4-2 IFS06 structure

(1) Upper adjustable beam (2) Main frame (3) Lower adjustable beam

(4) Front foot (5) Rear foot (6) Cable tray

Specifications

Table 4-1 describes IFS06 specifications.

Table 4-1 IFS06 specifications

Item Specification

Dimensions 1730 mm (79 in.) x 600 mm (23.62 in.) x 600 mm (23.62 in.)(H x W x D)

Weight 45 kg (99.23 lb)

4.2 OCBAn Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.Power cables shipped with RRUs cannot support long-distance power supply. Therefore, whenpower supply is far from the equipment, cables with large core diameters are used, and an OCBconnects these cables and RRU power cables.

RRU3008 (DC) V2Hardware Description 4 RRU Auxiliary Devices


4-3

Application Scenario of an OCBFigure 4-3 shows the application scenario of an OCB.

Figure 4-3 Application scenario of an OCB

For details about the structure, functions, installation, and maintenance of an OCB, see the OCBUser Guide.

4 RRU Auxiliary DevicesRRU3008 (DC) V2




Documents

RRU3008 (DC) V2 Hardware Description(Draft a)(PDF)-En