Huawei Technologies RRU3832 Remote Radio Unit User Manual Hardware Description
Huawei Technologies Co.,Ltd Remote Radio Unit Hardware Description
Contents
- 1. User Manual I
- 2. User Manual II
- 3. User Manual III
- 4. User Manual IV
User Manual IV
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| Document ID | 2397837 |
| Application ID | IUCulfcyED5cfA80affBkA== |
| Document Description | User Manual IV |
| Short Term Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 51.03kB (637910 bits) |
| Date Submitted | 2014-09-23 00:00:00 |
| Date Available | 2014-09-23 00:00:00 |
| Creation Date | 2014-02-10 10:58:26 |
| Producing Software | Antenna House PDF Output Library 2.4.0 (Windows) |
| Document Lastmod | 2014-02-10 10:58:26 |
| Document Title | Hardware Description |
| Document Creator | AH Formatter V6.0 R1 (6,0,2012,1211) for Windows |
| Document Author: | Huawei Technologies Co., Ltd. |
RRU3832&RRU3632
Hardware Description
Issue
03
Date
2014-01-20
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,
and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute 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
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:
Base station installation engineers
System engineers
Site maintenance engineers
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About This Document
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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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.
Issue 03 (2014-01-20)
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.
Issue 03 (2014-01-20)
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
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
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1 Changes in RRU3832&RRU3632 Hardware Description
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
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:
Receives downlink baseband data from the BBU and sends uplink baseband data to the
BBU.
Receives 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.
Multiplexes 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.
Provides 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).
The 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
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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
RUN
See 2.5 RRU Indicators.
(3) Indicators
ALM
ACT
VSWR
CPRI0
CPRI1
NOTE
l The port for transmitting RET signals is determined by the software.
l For the RRU3832, CPRI0 is connected to the BBU or an upper-level RRU and CPRI1 is connected to
a lower-level RRU.
l For 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
Issue 03 (2014-01-20)
Product Version
TX/RX
Channe
Number
of Used
RF Ports
Usage
Remarks
DBS3900 WCDMA
V200R013C00
1 x 2T2R
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
It is recommended that
ANT_TX/RXA and
ANT_RXC be used
together.
A single
sector
You can also use ANT_TX/
RXB and ANT_RXD
together.
DBS3900 LTE
V100R006C00 and
later versions
1 x 2T2R
ANT_TX/RXA and
ANT_TX/RXB are used
together.
A single
sector
1 x 2T4R
ANT_TX/RXA, ANT_TX/ A single
RXB, ANT_RXC, and
sector
ANT_RXD are used
together for one sector, with
ANT_TX/RXA and
ANT_RXC combined and
ANT_TX/RXB and
ANT_RXD combined.
2 x 1T2R
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
1 x 2T2R
ANT_TX/RXA and
ANT_TX/RXB are used
together.
A single
sector
1 x 2T4R
ANT_TX/RXA, ANT_TX/ A single
RXB, ANT_RXC, and
sector
ANT_RXD are used
together for one sector, with
ANT_TX/RXA and
ANT_RXC combined and
ANT_TX/RXB and
ANT_RXD combined.
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
ANT_TX/RXA and
ANT_TX/RXB are used
together.
A single
sector
1 x 2T4R
ANT_TX/RXA, ANT_TX/ A single
RXB, ANT_RXC, and
sector
ANT_RXD are used
together for one sector, with
ANT_TX/RXA and
ANT_RXC combined and
ANT_TX/RXB and
ANT_RXD combined.
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.
Steady on
Alarms are generated, and the module must
be replaced.
ALM
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Red
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Indicator
ACT
VSWR
CPRI0
CPRI1
Issue 03 (2014-01-20)
Color
Green
Red
Red or
green
Red or
green
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.
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.
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.
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.
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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The puller of a single-mode optical module is blue and the puller of a multimode optical
module is black or gray.
The 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
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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3 RRU Cables
When the distance between an RRU and an RCU is longer than 5 m (16.4 ft), an AISG multiwire 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 RRU Cables
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 EXT_ALM
male connector
port on the
RRU
Cord end
terminal
External alarm
device
3.5 CPRI
Fiber Optic
Cable
(RRU3832)
DLC connector
DLC connector
CPRI port on a
board in the BBU
or CPRI1 port on
the upper-level
RRU
CPRI0 port on
the RRU
CPRI1 port on
the RRU
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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 MultiWire 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
l If 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.
l One OT terminal must be added to each end of the PGND cable onsite.
l You 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
l The 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.
l If 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.
(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.
2)
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
RRU
power
cable
Wire
Wire Color in Most
Regions
Wire Color in Other Regions
North
American
Standard
Europea
Standar
UK
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
X4
SWITCH_INPUT1+
X1.7
Orange
X5
SWITCH_INPUT1(GND)
X1.10
White and
green
X6
APM RX-
X1.11
Green
X7
APM RX+
X1.13
White and
brown
X8
APM TX-
X1.14
Brown
X9
APM TX+
RS485
Twisted
pair
Twisted
pair
Twisted
pair
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
l The ODF and trunk single-mode fiber optic cable are provided by the customer and must comply with
the ITU-T G.652 standard.
l The ODF is an outdoor transfer box for fiber optic cables, which interconnects the single-mode pigtail
and trunk single-mode fiber optic cable.
l A 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
l When 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).
l When 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 (4) FC connector (5) LC connector (6) SC connector
breakout cable
NOTE
l When 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.
l When 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
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)
When it connects two RRUs, the distance
between the two RRUs must be equal to or
less than 10 m (32.81 ft).
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
l When 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.
l When 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.
l If 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)
X1.1
X2 End (Pin of the
Standard AISG
Female Connector)
X2.1
Color
White and
blue
Blue
Type
Description
Twisted
pair
+12 V
X1.3
X2.3
White and
orange
X1.5
X2.5
Orange
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
Twisted
pair
RS485 B
RS485 A
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 multiwire 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
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(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
Twisted pair
DC Return
Twisted pair
RS485 B
Blue
X1.7
X2.7
White and orange
Orange
X1.3
X2.3
White and green
X1.5
X2.5
Green
X1.6
X2.6
White and brown
RS485 A
Twisted pair
+24 V
Brown
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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
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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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5 RRU Auxiliary Devices
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
It can be installed on the ground.
The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for
heights of RRUs.
RRUs 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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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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