Huawei Technologies RRU3832 Remote Radio Unit User Manual Hardware Description

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User Manual IV

RRU3832&RRU3632

Hardware Description

Issue 03

Date 2014-01-20

HUAWEI TECHNOLOGIES CO., LTD.

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 a 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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About This Document

Purpose

This document provides reference for planning and deploying DC blade RRU3832 and

RRU3632 (referred to as RRU in this document). It presents the exterior and describes the ports,

functions, cable types, connector specifications, and cable connections of the RRU.

Product Versions

The following table lists the product versions related to this document for RRU3832.

Product Name Product Version

DBS3900 V100R004C00 and later versions

DBS3900 WCDMA V200R013C00 and later versions

DBS3900 LTE V100R006C00 and later versions

The following table lists the product versions related to this document for RRU3632.

Product Name Product Version

DBS3900 V100R008C00 and later versions

DBS3900 LTE V100R006C00 and later versions

Intended Audience

This document is intended for:

lBase station installation engineers

lSystem engineers

lSite maintenance engineers

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Organization

1 Changes in RRU3832&RRU3632 Hardware Description

This chapter describes the changes in RRU3832&RRU3632 Hardware Description.

2 RRU Introduction

This chapter describes the exterior and function of the RRU as well as the ports and indicators

on the RRU.

3 RRU Cables

This chapter describes RRU cables.

4 RF Cable Connections for the RRU3832&RRU3632

RF cable connections for the RRU vary depending on the configurations of the RRU and antenna.

5 RRU Auxiliary Devices

This chapter describes RRU auxiliary devices.

Conventions

Symbol Conventions

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

Symbol Description

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in equipment damage, data loss,

performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal

injury.

Calls attention to important information, best practices and

tips.

NOTE is used to address information not related to personal

injury, equipment damage, and environment deterioration.

General Conventions

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iii

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.

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.

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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 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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Contents

About This Document.....................................................................................................................ii

1 Changes in RRU3832&RRU3632 Hardware Description.......................................................1

2 RRU Introduction..........................................................................................................................2

2.1 RRU Exterior..................................................................................................................................................................3

2.2 RRU Functions...............................................................................................................................................................3

2.3 RRU Technical Specifications........................................................................................................................................4

2.4 RRU Ports.......................................................................................................................................................................5

2.5 RRU Indicators.............................................................................................................................................................10

2.6 Optical Modules...........................................................................................................................................................12

3 RRU Cables...................................................................................................................................14

3.1 RRU Cable List............................................................................................................................................................16

3.2 RRU PGND Cable........................................................................................................................................................17

3.3 RRU Power Cable........................................................................................................................................................18

3.4 RRU Alarm Cable........................................................................................................................................................19

3.5 CPRI Fiber Optic Cable................................................................................................................................................20

3.6 RRU RF Jumper...........................................................................................................................................................24

3.7 RRU AISG Multi-Wire Cable......................................................................................................................................25

3.8 RRU AISG Extension Cable........................................................................................................................................26

4 RF Cable Connections for the RRU3832&RRU3632.............................................................28

5 RRU Auxiliary Devices..............................................................................................................30

5.1 IFS06............................................................................................................................................................................31

5.2 OCB..............................................................................................................................................................................32

RRU3832&RRU3632

Hardware Description Contents

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1 Changes in RRU3832&RRU3632 Hardware

Description

This chapter describes the changes in RRU3832&RRU3632 Hardware Description.

03 (2014-01-20)

This is the third official release.

Compared with issue 02 (2013-07-30), this issue includes the following new information:

4 RF Cable Connections for the RRU3832&RRU3632.

Compared with issue 02 (2013-07-30), this issue does not include any changes.

Compared with issue 02 (2013-07-30), no information is deleted from this issue.

02 (2013-07-30)

This is the second official release.

Compared with issue 01 (2013-04-28), this issue does not include any new information.

Compared with issue 01 (2013-04-28), this issue includes the following changes:

Topic Change Description

2.4 RRU Ports Added a detailed description of the alarm

port.

Compared with issue 01 (2013-04-28), no information is deleted from this issue.

01 (2013-04-28)

This is the first official release.

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2 RRU Introduction

About This Chapter

This chapter describes the exterior and function of the RRU as well as the ports and indicators

on the RRU.

2.1 RRU Exterior

This section describes the exterior and dimensions of an RRU.

2.2 RRU Functions

This section describes the main functions of the RRU.

2.3 RRU Technical Specifications

This section describes technical specifications of an RRU, including supported modes, frequency

bands, RF specifications, engineering specifications, and antenna capabilities.

2.4 RRU Ports

This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity

panel, and indicator panel.

2.5 RRU Indicators

This section describes six indicators on an RRU. They indicate the running status.

2.6 Optical Modules

An optical module transmits optical signals between an optical port and a fiber optic cable.

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2.1 RRU Exterior

This section describes the exterior and dimensions of an RRU.

Figure 2-1 shows an RRU.

Figure 2-1 RRU exterior

Figure 2-2 shows RRU dimensions.

Figure 2-2 RRU dimensions

2.2 RRU Functions

This section describes the main functions of the RRU.

The Remote Radio Unit (RRU) consists of the high-speed interface unit, signal processing unit,

power amplifier, duplexer, extension ports, and power module. Figure 2-3 shows the function

structure of the RRU.

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Figure 2-3 Function structure of the RRU

NOTE

For details about the extension ports, see 2.4 RRU Ports.

The RRU performs the following functions:

lReceives downlink baseband data from the BBU and sends uplink baseband data to the

BBU.

lReceives RF signals from the antenna system, down-converts the signals to intermediate

frequency (IF) signals, amplifies the IF signals, and performs analog-to-digital conversion.

The transmit (TX) channel filters downlink signals, performs digital-to-analog conversion,

and up-converts RF signals to the TX band.

lMultiplexes receive (RX) and TX signals on the RF channel, which enables these signals

to share the same antenna path. It also filters the RX and TX signals.

lProvides a built-in Bias Tee (BT). The built-in BT couples RF signals and OOK signals

and transmits them through the TX/RX port A. The built-in BT also supplies power to the

tower mounted amplifier (TMA).

lThe RRU can be powered by the AC/DC power module. In this case, this RRU is called

AC RRU. For details about the AC/DC power module, see the AC/DC Power Module User

Guide or OPM15M User Guide.

2.3 RRU Technical Specifications

This section describes technical specifications of an RRU, including supported modes, frequency

bands, RF specifications, engineering specifications, and antenna capabilities.

For details about technical specifications of an RRU, see section "Technical Specifications of

RRUs" in the 3900 Series Base Station Technical Description.

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2.4 RRU Ports

This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity

panel, and indicator panel.

Figure 2-4 shows the ports on the RRU panels.

Figure 2-4 Ports on the RRU panels

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

Table 2-1 Ports and indicators on the RRU panels

Item Silkscreen Remarks

(1) Ports in the cabling

cavity

RTN(+) Power supply socket

NEG(-)

CPRI0 Optical/electrical port 0

CPRI1 Optical/electrical port 1

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Item Silkscreen Remarks

(2) Ports at the bottom ANT_TX/RXA TX/RX port A, supporting RET signal

transmission

ANT_RXC RX port C

ANT_RXD Port RX port D

ANT_TX/RXB TX/RX port B

EXT_ALM Alarm monitoring port used for monitoring

one RS485 signal and two dry contact signals

RET Communication port for the RET antenna,

supporting RET signal transmission

(3) Indicators RUN See 2.5 RRU Indicators.

ALM

ACT

VSWR

CPRI0

CPRI1

NOTE

lThe port for transmitting RET signals is determined by the software.

lFor the RRU3832, CPRI0 is connected to the BBU or an upper-level RRU and CPRI1 is connected to

a lower-level RRU.

lFor the RRU3632, CPRI0 is connected to the BBU and the CPRI1 is reserved.

Table 2-2 describes how to use RF ports for RRU3832.

Table 2-2 Usage of RF ports for RRU3832

Product Version TX/RX

Channe

Number

of Used

RF Ports

Usage Remarks

DBS3900 WCDMA

V200R013C00

1 x 2T2R 2 ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

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Product Version TX/RX

Channe

Number

of Used

RF Ports

Usage Remarks

DBS3900 WCDMA

V200R014C00 and

later versions

1 x 1T2R 2 It is recommended that

ANT_TX/RXA and

ANT_RXC be used

together.

You can also use ANT_TX/

RXB and ANT_RXD

together.

A single

sector

1 x 2T2R 2 ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x 2T4R 4 ANT_TX/RXA, ANT_TX/

RXB, ANT_RXC, and

ANT_RXD are used

together for one sector, with

ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

A single

sector

2 x 1T2R 4 ANT_TX/RXA and

ANT_RXC are used for one

sector; ANT_TX/RXB and

ANT_RXD are used for the

other sector.

Two sectors

DBS3900 LTE

V100R006C00 and

later versions

1 x 2T2R 2 ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x 2T4R 4 ANT_TX/RXA, ANT_TX/

RXB, ANT_RXC, and

ANT_RXD are used

together for one sector, with

ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

A single

sector

Table 2-3 describes how to use RF ports for RRU3632.

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Table 2-3 Usage of RF ports for RRU3632

Product Version TX/RX

Channe

Number

of Used

RF Ports

Usage Remarks

DBS3900 LTE

V100R006C00 and

later versions

1 x 2T2R 2 ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x 2T4R 4 ANT_TX/RXA, ANT_TX/

RXB, ANT_RXC, and

ANT_RXD are used

together for one sector, with

ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

A single

sector

Figure 2-5 shows the recommended usage of the RF ports on an RRU3832 used for DBS3900

WCDMA V200R013C00.

Figure 2-5 Recommended usage of the RF ports on an RRU3832 used for DBS3900 WCDMA

V200R013C00

Figure 2-6 shows the recommended usage of the RF ports on an RRU3832 used for DBS3900

WCDMA V200R014C00 and later versions.

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Figure 2-6 Recommended usage of the RF ports on an RRU3832 used for DBS3900 WCDMA

V200R014C00 and later versions

Figure 2-7 shows the recommended usage of the RF ports on RRU3832 and RRU3632 used for

DBS3900 LTE V100R006C00 and later versions.

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Figure 2-7 Recommended usage of the RF ports on RRU3832 and RRU3632 used for DBS3900

LTE V100R006C00 and later versions

2.5 RRU Indicators

This section describes six indicators on an RRU. They indicate the running status.

For detailed positions of RRU indicators, see 2.4 RRU Ports.

Table 2-4 describes RRU indicators.

Table 2-4 RRU indicators

Indicator Color Status Meaning

RUN Green Steady on There is power supply, but the module is

faulty.

Steady off There is no power supply, or the module is

faulty.

Blinking (on for

1s and off for 1s)

The board is functioning properly.

Blinking (on for

0.125s and off for

0.125s)

Software is being loaded to the module, or

the module is not started.

ALM Red Steady on Alarms are generated, and the module must

be replaced.

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Indicator Color Status Meaning

Blinking (on for

1s and off for 1s)

Alarms are generated. The alarms may be

caused by the faults on the related boards or

ports. Therefore, you need to locate the fault

before deciding whether to replace the

module.

Steady off No alarm is generated.

ACT Green Steady on The module is running properly with TX

channels enabled or the software is being

loaded without RRU running.

Blinking (on for

1s and off for 1s)

The module is running properly with TX

channels disabled.

VSWR Red Steady off No Voltage Standing Wave Ratio (VSWR)

alarm is generated.

Blinking (on for

1s and off for 1s)

VSWR alarms are generated on the

ANT_TX/RXB port.

Steady on VSWR alarms are generated on the

ANT_TX/RXA port.

Blinking (on for

0.125s and off for

0.125s)

VSWR alarms are generated on the

ANT_TX/RXA and ANT_TX/RXB ports.

CPRI0 Red or

green

Steady green The CPRI link is functioning properly.

Steady red An optical module fails to transmit or receive

signals because the optical module is faulty

or the fiber optic cable is broken.

Blinking red (on

for 1s and off for

1s)

The CPRI link is out of lock because of a

failure in clock lock between two modes or

mismatched data rates over CPRI ports.

Steady off The optical module cannot be detected, or the

optical module is powered off.

CPRI1 Red or

green

Steady green The CPRI link is functioning properly.

Steady red An optical module fails to transmit or receive

signals because the optical module is faulty

or the fiber optic cable is broken.

Blinking red (on

for 1s and off for

1s)

The CPRI link is out of lock because of a

failure in clock lock between two modes or

mismatched data rates over CPRI ports.

Steady off The optical module cannot be detected, or the

optical module is powered off.

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2.6 Optical Modules

An optical module transmits optical signals between an optical port and a fiber optic cable.

NOTE

The exteriors of an optical module and the label on an optical module in this section are for reference only.

The actual exteriors may be different.

Exterior

The following figure shows the exterior of an optical module.

Figure 2-8 Exterior of an optical module

Label on an optical module

There is a label on each optical module, which provides information such as the rate, wavelength,

and transmission mode, as shown in the following figure.

Figure 2-9 Label on an optical module

(1) Rate (2) Wavelength (3) Transmission mode

Optical Module Type

Optical modules can be divided into single- and multimode optical modules, which can be

distinguished as follows:

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lThe puller of a single-mode optical module is blue and the puller of a multimode optical

module is black or gray.

lThe transmission mode is displayed as "SM" on the label of a single-mode optical module

and "MM" on the label of a multimode optical module.

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3 RRU Cables

About This Chapter

This chapter describes RRU cables.

3.1 RRU Cable List

This section describes RRU cable connections.

3.2 RRU PGND Cable

An RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of the

RRU. The maximum length of an RRU PGND cable is 8 m (26.25 ft).

3.3 RRU Power Cable

The RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU. The

maximum length of an RRU power cable delivered with RRUs is 50 m (164.04 ft) by default.

3.4 RRU Alarm Cable

The RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an external

device to an RRU so that the base station monitors the operating status of external devices. The

RRU alarm cable is 5 m (16.4 ft).

3.5 CPRI Fiber Optic Cable

CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber

optic cables. They transmit CPRI signals.

3.6 RRU RF Jumper

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

A fixed-length RF jumper used by an RRU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m

(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RRU has a maximum

length of 10 m (32.81 ft).

3.7 RRU AISG Multi-Wire Cable

An RRU AISG multi-wire cable connects an RRU and an RCU to transmit control signals from

a base station to an RET antenna. When the RRU is connected to the RET antenna, an AISG

multi-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m (16.40

ft).

3.8 RRU AISG Extension Cable

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When the distance between an RRU and an RCU is longer than 5 m (16.4 ft), an AISG multi-

wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extension

cable is used to extend the AISG multi-wire cable for transmitting RS485 signals. The length of

the AISG extension cable is 15 m (49.21 ft).

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3.1 RRU Cable List

This section describes RRU cable connections.

Table 3-1 lists RRU cables.

Table 3-1 RRU cables

Cable One End The Other End

Connector Installation

Position

Connector Installation

Position

3.2 RRU

PGND

Cable

OT terminal (M6,

16 mm2 or 0.025

in.2)

Ground

terminal on the

RRU

OT terminal

(M8, 16 mm2 or

0.025 in.2)

Ground terminal

on the ground bar

3.3 RRU

Power Cable

Tool-less female

connector

(pressfit type)

NEG(-) and

RTN(+) ports

on the RRU

Depending on the

power supply

equipment

External power

equipment

3.4 RRU

Alarm Cable

DB15 waterproof

male connector

EXT_ALM

port on the

RRU

Cord end

terminal

External alarm

device

3.5 CPRI

Fiber Optic

Cable

(RRU3832)

DLC connector CPRI0 port on

the RRU

DLC connector CPRI port on a

board in the BBU

or CPRI1 port on

the upper-level

RRU

CPRI1 port on

the RRU

CPRI0 port on the

lower-level RRU

3.5 CPRI

Fiber Optic

Cable

(RRU3632)

DLC connector CPRI0 port on

the RRU

DLC connector CPRI port on a

board in the BBU

3.6 RRU RF

Jumper

DIN male

connector

ANT_TX/

RXA,

ANT_TX/

RXB,

ANT_RXC, or

ANT_RXD

port on the

RRU

DIN male

connector

Antenna system

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Cable One End The Other End

Connector Installation

Position

Connector Installation

Position

3.7 RRU

AISG Multi-

Wire Cable

DB9 waterproof

male connector

RET port on

the RRU

Standard AISG

female connector

Standard AISG

male connector

on the RCU or on

the AISG

extension cable

3.8 RRU

AISG

Extension

Cable

Standard AISG

male connector

Standard AISG

female

connector on

the AISG

multi-wire

cable

Standard AISG

female connector

Standard AISG

male connector

on the RCU

3.2 RRU PGND Cable

An RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of the

RRU. The maximum length of an RRU PGND cable is 8 m (26.25 ft).

Exterior

A PGND cable is green or green and yellow with a cross-sectional area of 16 mm2 (0.025 in.2).

An OT terminal is installed at each end of the cable. Figure 3-1 shows a PGND cable.

Figure 3-1 PGND cable

(1) OT terminal (M6, 16 mm2 or 0.025 in.2) (2) OT terminal (M8, 16 mm2 or 0.025 in.2)

NOTE

lIf the customer prepares the PGND cable, a copper-core cable with a cross-sectional area of 16 mm2

(0.025 in.2) or larger is recommended.

lOne OT terminal must be added to each end of the PGND cable onsite.

lYou can determine the color of the cable and whether to use corresponding two-hole OT terminals

based on local regulations.

Figure 3-2 shows a two-hole OT terminal.

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Figure 3-2 Two-hole OT terminal

3.3 RRU Power Cable

The RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU. The

maximum length of an RRU power cable delivered with RRUs is 50 m (164.04 ft) by default.

NOTE

lThe maximum length of power supply that an RRU power cable supports is 150 m (492.12 ft). Contact

Huawei engineers when an RRU power cable greater than 50 m (164.04 ft) is required.

lIf a power device provided by the customer is used, the recommended specification of the circuit breaker

on this power device is 15 A to 30 A.

Exterior

There are four types of RRU power cables in terms of cross-sectional areas: 3.3 mm2 (0.005 in.

2) (12 AWG) and 5.3 mm2 (0.008 in.2) (10 AWG) complying with North American standards,

and 4 mm2 (0.006 in.2) and 6 mm2 (0.009 in.2) complying with European standards.

A tool-less female connector (pressfit type) needs to be added to one end of the RRU power

cable and a corresponding terminal needs to be added to the other end based on the requirements

of the connector on the external power device, as shown in Figure 3-3.

Figure 3-3 RRU power cable

(1) -48 V DC power cable (2) Shield layer (3) Tool-less female connector

(pressfit type)

Table 3-2 lists the specifications of an RRU power cable.

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Table 3-2 Specifications of an RRU power cable

Cable Wire Wire Color in Most

Regions

Wire Color in Other Regions

North

American

Standard

Europea

Standar

RRU

power

cable

RTN(+) Black Brown Blue

NEG(-) Blue Blue Gray

3.4 RRU Alarm Cable

The RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an external

device to an RRU so that the base station monitors the operating status of external devices. The

RRU alarm cable is 5 m (16.4 ft).

Exterior

An alarm cable has a DB15 waterproof male 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 male connector (2) Cord end terminal

Pin Assignment

Table 3-3 describes the pin assignment for the wires of an RRU alarm cable.

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

RRU

Alarm

Port

Pin of the

Waterpro

ofed

DB15

Male

Connecto

Color Type Cord End

Terminal

Description

Dry

contact

X1.2 White and

blue

Twisted

pair

X2 SWITCH_INPUT0+

X1.3 Blue X3 SWITCH_INPUT0-

(GND)

X1.6 White and

orange

Twisted

pair

X4 SWITCH_INPUT1+

X1.7 Orange X5 SWITCH_INPUT1-

(GND)

RS485 X1.10 White and

green

Twisted

pair

X6 APM RX-

X1.11 Green X7 APM RX+

X1.13 White and

brown

Twisted

pair

X8 APM TX-

X1.14 Brown X9 APM TX+

3.5 CPRI Fiber Optic Cable

CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber

optic cables. They transmit CPRI signals.

Multimode fiber optic cables connect the BBU and RRU or interconnect two RRUs. The

maximum length of the multimode fiber optic cable between the BBU and RRU is 150 m (492.12

ft) and the multimode fiber optic cable between two RRUs has a fixed length of 10 m (32.81 ft).

A single-mode fiber optic cable consists of the single-mode pigtail and trunk single-mode fiber

optic cable, and the single-mode pigtail and trunk single-mode fiber optic cable are

interconnected using the ODF. The maximum length of the single-mode pigtail is 20 m (65.62

ft) on BBU side and 70 m (229.66 ft) on RRU side.

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NOTE

lThe ODF and trunk single-mode fiber optic cable are provided by the customer and must comply with

the ITU-T G.652 standard.

lThe ODF is an outdoor transfer box for fiber optic cables, which interconnects the single-mode pigtail

and trunk single-mode fiber optic cable.

lA multimode fiber optic cable and a single-mode fiber optic cable are connected to a multimode optical

module and a single-mode optical module, respectively.

Exterior

Multimode fiber optic cable: The multimode fiber optic cable has a DLC connector at each end,

as shown in Figure 3-5.

Figure 3-5 Multimode fiber optic cable

(1) DLC connector (2) Breakout cable (3) Label on the breakout cable

NOTE

lWhen a multimode fiber optic cable connects a BBU and an RRU, the breakout cable on the BBU side

is 0.34 m (1.12 ft) and the breakout cable on the RRU side is 0.03 m (0.098 ft).

lWhen a multimode fiber optic cable connects two RRUs, the breakout cable on both sides is 0.03 m

(0.098 ft).

Figure 3-6 shows the connection of the multimode fiber optic cable between a BBU and an

RRU.

Figure 3-6 Connection of the multimode fiber optic cable between a BBU and an RRU

(1) Multimode fiber optic cable between a BBU and an RRU

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Single-mode pigtail: The single-mode pigtail has a DLC connector at one end and an FC, LC,

or SC connector at the other end, as shown in Figure 3-7.

Figure 3-7 Single-mode pigtail

(1) DLC connector (2) Breakout

cable

(3) Label on the

breakout cable

(4) FC connector (5) LC connector (6) SC connector

NOTE

lWhen a single-mode pigtail connects a BBU and an ODF, the breakout cables on the BBU side and

ODF side are 0.34 m (1.12 ft) and 0.8 m (2.62 ft), respectively.

lWhen a single-mode pigtail connects an RRU and an ODF, the breakout cables on the RRU side and

ODF side are 0.03 m (0.098 ft) and 0.8 m (2.62 ft), respectively.

Figure 3-8 shows the connection of the single-mode pigtail.

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Figure 3-8 Connection of the single-mode pigtail

(1) Single-mode pigtail between a BBU and an ODF (2) Single-mode pigtail between an RRU and an ODF

Selection Principles

The following table describes the principles for selecting CPRI fiber optic cables.

Table 3-4 Principles for selecting CPRI fiber optic cables

Remote

Distance

Selection Principle Remarks

Less than or

equal to 100 m

(328.08 ft)

Multimode fiber optic cable Connects the BBU and RRU

When it connects two RRUs, the distance

between the two RRUs must be equal to or

less than 10 m (32.81 ft).

Greater than

100 m (328.08

ft) and equal to

or less than

150 m (492.12

ft)

Multimode fiber optic cable Connects the BBU and RRU

Recommended: single-mode

fiber optic cable (single-mode

pigtail and trunk single-mode

fiber optic cable)

The single-mode pigtail at the RRU or BBU

side is connected to the trunk single-mode

fiber optic cable using the ODF.

Greater than

150 m (492.12

ft)

Single-mode fiber optic cable

(single-mode pigtail and trunk

single-mode fiber optic cable)

Pin Assignment

Table 3-5 describes the labels on and recommended connections for the breakout cables of a

CPRI fiber optic cable.

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Table 3-5 Labels on and recommended connections for the breakout cables of a CPRI fiber optic

cable

Label Installation Position

Multimode Fiber

Optic Cable

Between a BBU

and an RRU

Multimode Fiber

Optic Cable

Between Two

RRUs

Single-Mode Pigtail

1A CPRI RX port on the

RRU

CPRI RX port on

RRU 1

RX port on the BBU or

CPRI RX port on the

RRU

1B CPRI TX port on the

RRU

CPRI TX port on

RRU 1

TX port on the BBU or

CPRI TX port on the

RRU

2A TX port on the BBU CPRI TX port on

RRU 0

ODF

2B RX port on the BBU CPRI RX port on

RRU 0

ODF

3.6 RRU RF Jumper

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

A fixed-length RF jumper used by an RRU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m

(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RRU has a maximum

length of 10 m (32.81 ft).

NOTE

lWhen the distance between an RRU and an antenna is less than 10 m (32.81 ft), one end of the RF jumper

is connected to the ANT-TX/RXA or ANT-TX/RXB port at the bottom of the RRU, and the other end is

connected to the antenna.

lWhen the distance between an RRU and an antenna is greater than 10 m (32.81 ft), one end of the RF jumper

is connected to a feeder, and the other end is connected to the antenna.

lIf the customer prepares the RF jumper, the length of the RF jumper should be as short as possible and not

exceed 2 m (6.56 ft.).

Exterior

An RF jumper has a DIN male connector at one end and a customized connector at the other

end.

Figure 3-9 shows an RF jumper with a DIN male connector at each end.

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Figure 3-9 RF jumper

(1) DIN male connector

3.7 RRU AISG Multi-Wire Cable

An RRU AISG multi-wire cable connects an RRU and an RCU to transmit control signals from

a base station to an RET antenna. When the RRU is connected to the RET antenna, an AISG

multi-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m (16.40

ft).

NOTE

An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from a

base station and runs the commands to drive the stepper motor. Using a gear, the stepper motor drives the

adjustable phase shifter in the antenna and changes the downtilt angle.

Exterior

An AISG multi-wire cable has a waterproofed DB9 male connector at one end and a standard

AISG female connector at the other end, as shown in Figure 3-10.

Figure 3-10 AISG multi-wire cable

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

Pin Assignment

Table 3-6 describes the pin assignment for the wires of an AISG multi-wire cable.

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Table 3-6 Pin assignment for the wires of an AISG multi-wire cable

X1 End (Pin of the

Waterproofed

DB9 Male

Connector)

X2 End (Pin of the

Standard AISG

Female Connector)

Color Type Description

X1.1 X2.1

White and

blue Twisted

pair +12 V

Blue

X1.3 X2.3 White and

orange Twisted

pair

RS485 B

X1.5 X2.5 Orange RS485 A

X1.4 X2.4 White and

green

- GND

X1.9 and X1.4 are

interconnected.

- - - GND

- X2.1 and X2.6 are

interconnected.

- - +12 V

- X2.4 and X2.7 are

interconnected.

- - GND

3.8 RRU AISG Extension Cable

When the distance between an RRU and an RCU is longer than 5 m (16.4 ft), an AISG multi-

wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extension

cable is used to extend the AISG multi-wire cable for transmitting RS485 signals. The length of

the AISG extension cable is 15 m (49.21 ft).

Exterior

An AISG multi-wire cable has a standard AISG male connector at one end and a standard AISG

female connector at the other end, as shown in Figure 3-11.

Figure 3-11 AISG extension cable

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

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Pin Assignment

Table 3-7 describes the pin assignment for the wires of an AISG extension cable.

Table 3-7 Pin assignment for the wires of an AISG extension cable

X1 End (Pin

of the

Standard

AISG Male

Connector)

X2 End (Pin

of the

Standard

AISG

Female

Connector)

Color Type Description

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

Blue

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

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 +24 V

Brown

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4 RF Cable Connections for the

RRU3832&RRU3632

RF cable connections for the RRU vary depending on the configurations of the RRU and antenna.

Description of RF Cable Connections

This section describes the RF cable connections for the RRU serving a single sector. The

following table lists the RF cable connections for the RRU.

Table 4-1 RF cable connections for the RRU

RRU Model Specifications of a

Single RRU

Scenario Illustration of

Cable

Connections

RRU3832 and

RRU3632

For details, see section

"Typical Power

Configuration for RRU

Modules" in chapter

"Configuration

Reference" in 3900

Series Base Station

Initial Configuration

Guide.

2T2R See illustration 1 in

Figure 4-1.

1T2R+1T2R See illustration 2 in

Figure 4-1.

2T4R See illustration 3 in

Figure 4-1.

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Illustration of Cable Connections

Figure 4-1 RF cable connections for the RRU

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Hardware Description 4 RF Cable Connections for the RRU3832&RRU3632

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5 RRU Auxiliary Devices

About This Chapter

This chapter describes RRU auxiliary devices.

5.1 IFS06

An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs.

5.2 OCB

An Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.

Power cables shipped with RRUs cannot support long-distance power supply. Therefore, when

power supply is far from the equipment, cables with large core diameters are used, and an OCB

connects these cables and RRU power cables.

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5.1 IFS06

An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs.

Exterior

Figure 5-1 shows an IFS06.

Figure 5-1 IFS06

(1) Cable tray (2) Ground bar 2 (3) Rear foot (4) Front foot

(5) Adjustable beam (6) Ground bar 1 (7) Main frame -

Function

lIt can be installed on the ground.

lThe upper and lower adjustable beams on an IFS06 can be moved up and down to fit for

heights of RRUs.

lRRUs can be installed on an IFS06 only when the ambient temperature is higher than or

equal to the lowest working temperature of the RRU and at least 5°C (41°F) lower than the

highest working temperature of the RRU. In this scenario, the IFS06 supports at least three

RRUs. When the ambient temperature is higher than or equal to the lowest working

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temperature of the RRU and at least 10°C (50°F) lower than the highest working

temperature of the RRU, the IFS06 supports a maximum of six RRUs.

NOTE

For details about the operating temperature of the RRU, see section "Technical Specifications of

RRUs" in 3900 Series Base Station Technical Description.

Specifications

Table 5-1 describes IFS06 specifications.

Table 5-1 IFS06 specifications

Item Specification

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

Weight 45 kg (99.23 lb)

5.2 OCB

An Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.

Power cables shipped with RRUs cannot support long-distance power supply. Therefore, when

power supply is far from the equipment, cables with large core diameters are used, and an OCB

connects these cables and RRU power cables.

Application Scenario of an OCB

Figure 5-2 shows the application scenario of an OCB.

Figure 5-2 Application scenario of an OCB

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Hardware Description 5 RRU Auxiliary Devices

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

User Guide or OCB–01M User Guide.

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Huawei Technologies RRU3832 Remote Radio Unit User Manual Hardware Description

Huawei Technologies Co.,Ltd Remote Radio Unit Hardware Description

Contents

User Manual IV

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