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This document describes the process of installing a DC RRU3260 (referred to as RRU in this
document).
Product Versions
The following table lists the product versions related to this document.
Product NameProduct Version
DBS3900V100R008C00 and later versions
DBS3900 LTEV100R006C00 and later versions
Intended Audience
This document is intended for:
Base station installation engineers
Organization
1 Changes in the RRU3260 Installation Guide
This chapter describes the changes in the RRU3260 Installation Guide.
2 Installation Preparations
This chapter describes the reference documents, tools, and instruments that must be ready before
the installation. In addition, it specifies the skills and prerequisites that installation engineers
must have.
3 Information About the Installation
Before installing an RRU, you must be familiar with its exterior, ports, indicators, installation
options and installation clearance requirements.
This chapter describes how to unpack and check the delivered equipment to ensure that all the
materials are included and intact.
5 Installation Process
The installation process involves installing an RRU and RRU cables, checking the RRU
hardware installation, and powering on the RRU.
6 (Optional) Installing the Plastic Shells of the RRU
This section describes the procedure for installing the plastic shells of the RRU.
7 Hoisting an RRU and Related Cables onto a Tower
This section describes the procedure for hoisting an RRU and related cables onto a tower and
the precautions that must be taken.
8 Installing the RRU
This chapter describes the procedure for installing the RRU. The RRU can be installed on a pole,
U-steel, angle steel, wall, or an IFS06 . The procedure for installing the RRU varies depending
on installation options.
Conventions
9 Installing RRU Cables
This chapter describes the procedure for installing RRU cables.
10 Checking the RRU Hardware Installation
After an RRU is installed, check the hardware installation.
11 Powering On an RRU
After all the devices are installed, check the power-on status of an RRU.
12 Appendix
This section describes the procedure for adding an easy power receptacle (pressfit type)
connector.
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates a hazard with a high level or medium level of risk
which, if not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk which, if not
avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation that, if not
avoided, could result in equipment damage, data loss,
performance deterioration, or unanticipated results.
2.2 Tools and Instruments........................................................................................................................................3
2.3 Skills and Requirements for Onsite Personnel...................................................................................................4
3 Information About the Installation...........................................................................................5
6 (Optional) Installing the Plastic Shells of the RRU..............................................................38
7 Hoisting an RRU and Related Cables onto a Tower............................................................41
7.1 Hoisting an RRU onto a Tower........................................................................................................................42
7.2 Hoisting Fiber Optic Cables onto a Tower.......................................................................................................46
7.3 Hoisting Power Cables onto a Tower...............................................................................................................49
8 Installing the RRU.......................................................................................................................53
8.1 Mounting Kits for an RRU...............................................................................................................................54
8.2 Installing the RRU on a Pole............................................................................................................................55
8.2.1 Installing a Single RRU...........................................................................................................................55
8.2.2 Installing Two RRUs...............................................................................................................................58
8.2.3 Installing Three or More RRUs...............................................................................................................62
8.3 Installing the RRU on U-steel..........................................................................................................................67
8.4 Installing the RRU on Angle Steel...................................................................................................................72
8.5 Installing the RRU on a Wall...........................................................................................................................77
8.6 Installing an RRU on an IFS06.........................................................................................................................83
9.5 Installing an RRU PGND Cable.....................................................................................................................103
9.6 Installing an RRU RF Jumper........................................................................................................................104
9.7 Installing an RRU AISG Multi-Wire Cable and AISG Extension Cable.......................................................107
9.8 Installing an RRU Alarm Cable......................................................................................................................110
9.9 Opening the Cover Plate of an RRU Cabling Cavity.....................................................................................111
9.10 Installing an RRU Power Cable....................................................................................................................112
9.11 Installing a CPRI Fiber Optic Cable.............................................................................................................114
9.12 Closing the Cover Plate of an RRU Cabling Cavity....................................................................................116
10 Checking the RRU Hardware Installation..........................................................................120
11 Powering On an RRU.............................................................................................................121
This chapter describes the reference documents, tools, and instruments that must be ready before
the installation. In addition, it specifies the skills and prerequisites that installation engineers
must have.
2.1 Reference Documents
Before the installation, you must be familiar with reference documents.
2.2 Tools and Instruments
All tools and instruments required for RRU installation must be ready before the installation.
2.3 Skills and Requirements for Onsite Personnel
Onsite personnel must be qualified and trained. Before performing any operation, onsite
personnel must be familiar with correct operation methods and safety precautions.
Onsite personnel must be qualified and trained. Before performing any operation, onsite
personnel must be familiar with correct operation methods and safety precautions.
Before the installation, pay attention to the following items:
lThe customer's technical engineers must be trained by Huawei and be familiar with the
proper installation and operation methods.
lThe number of onsite personnel depends on the engineering schedule and installation
environment. Generally, only three to five onsite personnel are necessary.
RRU3260
Installation Guide3 Information About the Installation
3 Information About the Installation
About This Chapter
Before installing an RRU, you must be familiar with its exterior, ports, indicators, installation
options and installation clearance requirements.
3.1 RRU Exterior
This section describes the exterior and dimensions of an RRU.
3.2 RRU Ports
This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity
panel, and indicator panel.
3.3 RRU Indicators
This section describes six indicators on an RRU. They indicate the running status.
3.4 Installation Scenarios
An RRU can be installed on a pole, U-steel, angle steel, or IFS06. Installation scenarios must
meet heat-dissipation and waterproofing requirements of the RRU.
3.5 Installation Clearance Requirements of an RRU
This section describes the requirements for the installation clearance of a single RRU and
multiple RRUs and the requirements for the installation spacing between RRUs.
RRU3260
Installation Guide3 Information About the Installation
Table 3-3 RRU indicators
IndicatorColorStatusMeaning
RUNGreenSteady onThere is power supply, but the module is
faulty.
Steady offThere is no power supply, or the module is
faulty.
Blinking (on for
The board is functioning properly.
1s and off for 1s)
Blinking (on for
0.125s and off for
Software is being loaded to the module, or
the module is not started.
0.125s)
ALMRedSteady onAlarms are generated, and the module must
be replaced.
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 offNo alarm is generated.
ACTGreenSteady onThe 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.
VSWRRedSteady offNo 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 onVSWR alarms are generated on the
ANT_TX/RXA port.
Blinking (on for
0.125s and off for
VSWR alarms are generated on the
ANT_TX/RXA and ANT_TX/RXB ports.
0.125s)
CPRI0Red or
Steady greenThe CPRI link is functioning properly.
green
Steady redAn optical module fails to transmit or receive
signals because the optical module is faulty
or the fiber optic cable is broken.
The CPRI link is out of lock because of a
failure in clock lock between two modes or
mismatched data rates over CPRI ports.
11
RRU3260
Installation Guide3 Information About the Installation
IndicatorColorStatusMeaning
Steady offThe optical module cannot be detected, or the
optical module is powered off.
CPRI1Red or
green
Steady greenThe CPRI link is functioning properly.
Steady redAn optical module fails to transmit or receive
Blinking red (on
for 1s and off for
1s)
Steady offThe optical module cannot be detected, or the
3.4 Installation Scenarios
An RRU can be installed on a pole, U-steel, angle steel, or IFS06. Installation scenarios must
meet heat-dissipation and waterproofing requirements of the RRU.
Requirements for the Installation Scenarios
Application scenarios:
signals because the optical module is faulty
or the fiber optic cable is broken.
The CPRI link is out of lock because of a
failure in clock lock between two modes or
mismatched data rates over CPRI ports.
optical module is powered off.
To ensure proper heat dissipation of the RRU, the following requirements must be met:
lThe RRU cannot be installed in an enclosed cabinet without a cooling system.
lThe RRU cannot be installed in an enclosed camouflage box.
lThe RRU cannot be installed in an enclosed equipment room without a cooling system.
lWhen multiple RRUs are installed in centralized mode, the minimum clearance
requirements must be met. For details about the minimum clearance requirements, see 3.5.2
Clearance for Multiple RRUs and 3.5.3 Installation Spacing Between RRUs.
CAUTION
In improper installation scenarios, the heat dissipation efficiency decreases and therefore the
RRU may not work properly. Figure 3-6 shows an improper installation scenario.
RRU3260
Installation Guide3 Information About the Installation
Figure 3-6 Improper installation scenario
Method of installation:
lTo ensure proper heat dissipation and waterproofing of the RRU, the RRU must be installed
with the ports at the bottom and the vertical deviation angle of the RRU must be less than
or equal to 10 degrees, as shown in Figure 3-7.
lThe side-mounted mode is recommended for RRUs on the main pole secured on a tower.
This installation mode allows multiple RRUs to be installed next to each other at the same
level on a pole. When the horizontal distance between the main and auxiliary poles on a
tower is equal to or greater than 810 mm (23.62 in.), the side-mounted mode is
recommended for installing RRUs on the auxiliary pole to meet the minimum clearance
requirements. Otherwise, the standard mode is recommended for installing RRUs on the
auxiliary pole.
Figure 3-7 Requirements for the vertical deviation angle of an RRU
(1) RRU
(2) Installation support (pole, U-steel, angle steel, or wall)
RRU3260
Installation Guide3 Information About the Installation
CAUTION
l It is recommended that the RRU be installed on a wall in standard mode.
l When multiple RRUs are installed on an outdoor wall in side-mounted mode, it is
recommended that the mounting brackets not be combined, as shown in Figure 3-22. When
multiple RRUs are installed on an indoor wall in side-mounted mode, the mounting brackets
cannot be combined, as shown in Figure 3-23.
Figure 3-22 Correct installation of mounting brackets for multiple RRUs installed on an outdoor
wall in side-mounted mode
Figure 3-23 Correct installation of mounting brackets for multiple RRUs installed on an indoor
wall in side-mounted mode
RRU3260
Installation Guide3 Information About the Installation
Figure 3-24 RRU installed on a wall
Figure 3-25 RRU installed on a wall
Installing an RRU on an IFS06
In an IFS06 scenario:
lThe upper and lower adjustable beams on an IFS06 can be moved up and down to fit for
heights of RRUs.
lThe IFS06 supports at least three RRUs when the ambient temperature is higher than or
equal to the lowest operating temperature of the RRU and at least 5°C (41°F) lower than
the highest operating temperature of the RRU. The IFS06 supports a maximum of six RRUs
when the ambient temperature is higher than or equal to the lowest operating temperature