Huawei RRU3276 Users Guide
DBS3900 LTE TDD V600R007C00
RRU3276 Installation Guide
Issue |
Draft A |
Date 2015-10-30
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2015. 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
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
i |
|
Copyright © Huawei Technologies Co., Ltd. |
|||
|
|
DBS3900 LTE TDD RRU3252/RRU3256 Installation |
|
Guide |
About This Document |
About This Document
Purpose
This document describes the process of installing a DC RRU3276 (referred to as RRU in this document).
Product Version
The following table lists the product version related to this document.
Product Name |
Product Version |
|
|
eRelay DBS3900 |
V100R003C00 and later versions |
|
|
Intended Audience
This document is intended for:
Base station installation engineers
Organization
1 Change History
This chapter describes changes in the RRU3276 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 that installation engineers must have.
3 Information About the Installation
Before installing an RRU, you must be familiar with its exterior, ports, installation options, physical supports, and installation clearance requirements.
4 Unpacking the Equipment
This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
ii |
|
Copyright © Huawei Technologies Co., Ltd. |
|
DBS3900 LTE TDD RRU3252/RRU3256 Installation |
|
Guide |
About This Document |
5 Installation Process
The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on the RRU.
6 Hoisting the RRU and Cables onto a Tower
This section describes how to hoist the RRU and Cables onto a tower and provides important notes about the installation.
7 Installing the RRU
This chapter describes the procedure for installing the RRU. The RRU can be installed on a pole, U-steel, angle steel, or wall as required.
8 Installing RRU Cables
This chapter describes the procedure for installing RRU cables.
9 Checking the RRU Hardware Installation
This section describes how to check RRU hardware installation after the installation is complete.
10 Powering On an RRU
This section describes how to check the power-on status of an RRU after all the devices are installed.
11 Appendix
This section describes the procedure for adding an easy power receptacle (pressfit type) connector.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
|
Symbol |
|
Description |
|
|
|
|
|
|
|
|
|
|
|
Indicates a hazard with a high level of risk that, if not avoided, |
|
|
|
|
|
will result in death or serious injury. |
|
|
|
|
|
|
|
|
|
|
|
Indicates a hazard with a medium or low level of risk which, if |
|
|
|
|
|
not avoided, could result in minor or moderate injury. |
|
|
|
|
|
|
|
|
|
|
|
Indicates a potentially hazardous situation that, if not avoided, |
|
|
|
|
|
could cause equipment damage, data loss, and performance |
|
|
|
|
|
degradation, or unexpected results. |
|
|
|
|
|
|
|
|
|
|
|
Indicates a tip that may help you solve a problem or save time. |
|
|
|
|
|
|
|
|
|
|
|
Provides additional information to emphasize or supplement |
|
|
|
|
|
important points of the main text. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
iii |
|||
|
|
Copyright © Huawei Technologies Co., Ltd. |
|
|
|
DBS3900 LTE TDD RRU3252/RRU3256 Installation |
|
Guide |
About This Document |
General Conventions
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 |
Terminal display is in Courier New. |
|
|
Command Conventions
Convention |
Description |
|
|
Boldface |
The keywords of a command line are in boldface. |
|
|
Italic |
Command arguments are in italics. |
|
|
[ ] |
Items (keywords or arguments) in square brackets [ ] are |
|
optional. |
|
|
{ x | y | ... } |
Alternative items are grouped in braces and separated by |
|
vertical bars. One is selected. |
|
|
[ x | y | ... ] |
Optional alternative items are grouped in square brackets |
|
and separated by vertical bars. One or none is selected. |
|
|
{ x | y | ... } * |
Alternative items are grouped in braces and separated by |
|
vertical bars. A minimum of one or a maximum of all can |
|
be selected. |
|
|
GUI Conventions
Convention |
Description |
|
|
Boldface |
Buttons, menus, parameters, tabs, windows, and dialog titles |
|
are in boldface. For example, click OK. |
|
|
> |
Multi-level menus are in boldface and separated by the ">" |
|
signs. For example, choose File > Create > Folder. |
|
|
Keyboard Operation
|
Format |
|
Description |
|
|
|
|
|
|
|
|
|
Key |
|
Press the key. For example, press Enter and press Tab. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
iv |
|||
|
|
Copyright © Huawei Technologies Co., Ltd. |
|
|
|
DBS3900 LTE TDD RRU3252/RRU3256 Installation |
|
||
Guide |
About This Document |
||
|
|
|
|
|
Format |
|
Description |
|
|
|
|
|
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 Operation
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. |
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
v |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
Contents |
Contents
About This Document.................................................................................................................... |
|
ii |
|
1 Change History.............................................................................................................................. |
|
1 |
|
2 Installation Preparations ............................................................................................................. |
|
2 |
|
2.1 |
Reference Documents ...................................................................................................................................... |
|
2 |
2.2 Tools and Instruments ...................................................................................................................................... |
|
2 |
|
2.3 |
Skills and Requirements for Onsite Personnel ................................................................................................. |
4 |
|
3 Information About the Installation ........................................................................................... |
5 |
||
3.1 |
RRU Exterior ................................................................................................................................................... |
|
5 |
3.2 |
RRU Ports ........................................................................................................................................................ |
|
6 |
3.3 |
RRU Indicators................................................................................................................................................. |
|
8 |
3.4 |
Installation Options ........................................................................................................................................ |
|
10 |
3.5 |
Installation Clearance Requirements of an RRU............................................................................................ |
15 |
|
|
3.5.1 Clearance for a Single RRU .................................................................................................................. |
15 |
|
|
3.5.2 Clearance for Multiple RRUs................................................................................................................ |
17 |
|
|
3.5.3 Spacing Between RRUs ........................................................................................................................ |
|
20 |
4 Unpacking the Equipment ........................................................................................................ |
|
23 |
|
5 Installation Process ..................................................................................................................... |
|
25 |
|
6 Hoisting the RRU and Cables onto a Tower.......................................................................... |
26 |
||
6.1 |
Installing an RRU on a Tower ........................................................................................................................ |
|
26 |
6.2 |
Hoisting Fiber Optic Cables onto a Tower ..................................................................................................... |
30 |
|
6.3 |
Hoisting Power Cables onto a Tower ............................................................................................................. |
33 |
|
7 Installing the RRU ...................................................................................................................... |
|
37 |
|
7.1 |
Mounting Kits for an RRU ............................................................................................................................. |
|
38 |
7.2 |
Installing the RRU on a Pole.......................................................................................................................... |
|
38 |
|
7.2.1 Installing a Single RRU ........................................................................................................................ |
|
43 |
|
7.2.2 Installing Two RRUs............................................................................................................................. |
|
46 |
|
7.2.3 Installing Multiple RRUs ...................................................................................................................... |
48 |
|
7.3 |
Installing the RRU on U-Steel........................................................................................................................ |
|
53 |
7.4 |
Installing the RRU on Angle Steel ................................................................................................................. |
57 |
|
7.5 |
Installing the RRU on a Wall.......................................................................................................................... |
|
60 |
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
vi |
|
|
Copyright © Huawei Technologies Co., Ltd. |
|
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
Contents |
|
8 Installing RRU Cables................................................................................................................ |
65 |
|
8.1 |
Cabling Requirements .................................................................................................................................... |
66 |
8.2 |
Cable Connections ......................................................................................................................................... |
72 |
8.3 |
Installation Process......................................................................................................................................... |
76 |
8.4 |
RRU Cable List .............................................................................................................................................. |
77 |
8.5 |
Installing an RRU PGND Cable..................................................................................................................... |
79 |
8.6 |
Installing an RRU RF Jumper ........................................................................................................................ |
80 |
8.7 |
Installing an RRU Alarm Cable...................................................................................................................... |
83 |
8.8 |
Installing an RRU AISG Multi-Wire Cable and an RRU AISG Extension Cable.......................................... |
84 |
8.9 |
Opening the Cover Plate of an RRU Cabling Cavity ..................................................................................... |
87 |
8.10 Installing an RRU Power Cable ................................................................................................................... |
89 |
|
8.11 Installing an Optical Fiber Cable.................................................................................................................. |
90 |
|
8.12 Closing the Cover Plate of an RRU Cabling Cavity .................................................................................... |
92 |
|
9 Checking the RRU Hardware Installation ............................................................................. |
95 |
|
10 Powering On an RRU ............................................................................................................... |
96 |
|
11 Appendix .................................................................................................................................... |
98 |
|
11.1 Adding an Easy Power Receptacle (Pressfit Type) Connector to an RRU Power Cable .............................. |
98 |
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
vii |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
1 Change History |
1 Change History
This chapter describes changes in the RRU3276 Installation Guide.
Draft A (2015-10-30)
This is a draft.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
1 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
2 Installation Preparations |
2 Installation Preparations
About This Chapter
This chapter describes the reference documents, tools, and instruments that must be ready before the installation. In addition, it specifies the skills 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.
2.1 Reference Documents
Before the installation, you must be familiar with reference documents.
The following reference documents are required during RRU installation:
RRU3276 Hardware Description
DBS3900 Installation Guide
OCB-01M User Guide
This document describes the RRU installation on a pole, U-steel, angle steel, or wall. If RRUs are installed on the IFS06, the following reference document is required:
DBS3900 (ICR) Installation Guide
2.2Tools and Instruments
All tools and instruments required for RRU installation must be ready before the installation.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
2 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
2 Installation Preparations |
|||
|
|
|
|
|
|
Hammer drill (φ 12 bit to φ |
Electrostatic discharge |
Vacuum cleaner |
|
|
14 bit) |
|
(ESD) gloves |
|
|
|
|
|
|
|
Heat gun |
|
Phillips screwdriver (M3 to |
Flat-head screwdriver (M3 to |
|
|
|
M6) |
M6) |
|
|
|
|
|
|
Rubber mallet |
|
Hydraulic pliers |
Wire stripper |
|
|
|
|
|
|
Utility knife |
|
Cable cutter |
Level |
|
|
|
|
|
|
Adjustable wrench (capacity |
Torque screwdriver |
Torque socket |
|
|
≥ 32 mm) |
|
|
|
|
Torque wrench |
5 mm |
|
|
|
|
|
|
|
|
Capacity: 17 mm, 21 mm, |
(M3 to M6) |
|
|
|
and 32 mm |
|
|
|
|
|
|
|
|
|
Combination wrench |
|
|
|
|
|
|
(M3 to M6) |
|
|
Capacity: 17 mm, 21 mm, |
|
|
|
|
and 32 mm |
|
|
|
|
|
|
|
|
|
Multimeter |
|
Marker (diameter ≤ 10 mm) |
Measuring tape |
|
|
|
|
|
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
3 |
||
|
|
Copyright © Huawei Technologies Co., Ltd. |
|
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
2 Installation Preparations |
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.
Before the installation, pay attention to the following items:
The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods.
The number of onsite personnel depends on the engineering schedule and installation environment. Generally, only three to five onsite personnel are necessary.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
4 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
3 Information About the Installation
About This Chapter
Before installing an RRU, you must be familiar with its exterior, ports, installation options, physical supports, 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 Options
This section describes RRU installation options. An RRU can be installed on a pole, U-steel, angle steel, or wall.
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.
3.1 RRU Exterior
This section describes the exterior and dimensions of an RRU.
Figure 3-1 shows an RRU.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
5 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-1 RRU exterior
Figure 3-2 shows RRU dimensions.
Figure 3-2 RRU dimensions
3.2 RRU Ports
This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel.
Figure 3-3 shows the ports on the RRU panels.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
6 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-3 Ports on the RRU panels
Table 3-1 describes ports and indicators on the RRU panels.
Table 3-1 Ports and indicators on the RRU panels
|
Item |
|
Label |
Description |
|
|
|
|
|
|
|
|
(1) Ports at the |
|
ANT0-ANT3 |
TX/RX ports. ANT0 port supports RET |
|
|
bottom |
|
|
signal transmission. |
|
|
|
|
|
|
|
|
|
|
RET/EXT_ALM |
Communication port for the RET antenna or |
|
|
|
|
|
port for alarm reporting, supporting RET |
|
|
|
|
|
signal transmission |
|
|
|
|
|
|
|
|
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
7 |
|||
|
Copyright © Huawei Technologies Co., Ltd. |
|
|||
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
||||
|
|
|
|
|
|
|
|
Item |
|
Label |
Description |
|
|
|
|
|
|
|
|
|
|
RGPS |
RGPS port, which is optional. |
|
|
|
|
|
|
|
|
(2) Ports in the |
|
CPRI0/IR0 |
Optical port |
|
|
cabling cavity |
|
|
|
|
|
|
CPRI1/IR1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RTN(+) |
Power supply socket |
|
|
|
|
|
|
|
|
|
|
NEG(-) |
|
|
|
|
|
|
|
|
|
(3) Indicators |
|
RUN |
For details, see 3.3 RRU Indicators. |
|
|
|
|
|
|
|
|
|
|
ALM |
|
|
|
|
|
|
|
|
|
|
|
ACT |
|
|
|
|
|
|
|
|
|
|
|
VSWR |
|
|
|
|
|
|
|
|
|
|
|
CPRI0/IR0 |
|
|
|
|
|
|
|
|
|
|
|
CPRI1/IR1 |
|
|
|
|
|
|
|
If only two RF ports are required, ANT0 and ANT1 are used by default.
The RET ports to be used are determined by the software configuration.
3.3 RRU Indicators
This section describes six indicators on an RRU. They indicate the running status.
For the specific positions of RRU indicators, see 3.2 RRU Ports.
Table 3-2 describes RRU indicators.
Table 3-2 Indicators on the RRU
|
Label |
Color |
Status |
Description |
|
|
|
|
|
|
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 |
The module is working properly. |
|
|
|
for 1s |
|
|
|
|
|
|
|
|
|
Blinking on for 0.125s |
Software is being loaded to the |
|
|
|
and off for 0.125s |
module, or the module is not started. |
|
|
|
|
|
|
ALM |
Red |
Steady on |
Alarms are generated, and the |
|
|
|
|
module must be replaced. |
|
|
|
|
|
|
|
|
Steady off |
No alarm is generated. |
|
|
|
|
|
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
8 |
||
Copyright © Huawei Technologies Co., Ltd.
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
|||
|
|
|
|
|
|
Label |
Color |
Status |
Description |
|
|
|
|
|
|
|
|
Blinking on for 1s and off |
Alarms are generated. The alarms |
|
|
|
for 1s |
may be caused by the faults on the |
|
|
|
|
related modules or ports. Therefore, |
|
|
|
|
the necessity for module |
|
|
|
|
replacement is uncertain. |
|
|
|
|
|
|
ACT |
Green |
Steady on |
The module is working properly |
|
|
|
|
with TX channels enabled or |
|
|
|
|
software is being loaded without |
|
|
|
|
RRU running. |
|
|
|
|
|
|
|
|
Blinking on for 1s and off |
The module is working properly |
|
|
|
for 1s |
with TX channels disabled. |
|
|
|
|
|
|
VSWR |
Red |
Steady off |
No VSWR alarm is generated. |
|
|
|
|
|
|
|
|
Steady on |
A VSWR alarm is generated. |
|
|
|
|
|
|
CPRI0/I |
Red or |
Steady green |
The CPRI link is functioning |
|
R0 |
green |
|
properly. |
|
|
|
|
|
|
|
|
Steady red |
An optical module fails to transmit |
|
|
|
|
or receive signals possibly because |
|
|
|
|
the optical module is faulty or the |
|
|
|
|
optical fiber cable is broken. |
|
|
|
|
|
|
|
|
Blinking red on for 1s and |
The CPRI link is out of lock |
|
|
|
off for 1s |
possibly because of mutual lock of |
|
|
|
|
dual-mode clock sources or |
|
|
|
|
mismatched data rates over CPRI |
|
|
|
|
ports. (You are advised to check the |
|
|
|
|
system configuration to rectify the |
|
|
|
|
fault.) |
|
|
|
|
|
|
|
|
Steady off |
The SFP module is not properly |
|
|
|
|
installed, or the optical module is |
|
|
|
|
powered off. |
|
|
|
|
|
|
CPRI1/I |
Red or |
Steady green |
The CPRI link is functioning |
|
R1 |
green |
|
properly. |
|
|
|
|
|
|
|
|
Steady red |
An optical module fails to transmit |
|
|
|
|
or receive signals possibly because |
|
|
|
|
the optical module is faulty or the |
|
|
|
|
optical fiber cable is broken. |
|
|
|
|
|
|
|
|
Blinking red on for 1s and |
The CPRI link is out of lock |
|
|
|
off for 1s |
possibly because of mutual lock of |
|
|
|
|
dual-mode clock sources or |
|
|
|
|
mismatched data rates over CPRI |
|
|
|
|
ports. (You are advised to check the |
|
|
|
|
system configuration to rectify the |
|
|
|
|
fault.) |
|
|
|
|
|
|
|
|
Steady off |
The SFP module is not properly |
|
|
|
|
installed, or the optical module is |
|
|
|
|
|
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
9 |
||
Copyright © Huawei Technologies Co., Ltd.
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
|||
|
|
|
|
|
|
Label |
Color |
Status |
Description |
|
|
|
|
|
|
|
|
|
powered off. |
|
|
|
|
|
3.4 Installation Options
This section describes RRU installation options. An RRU can be installed on a pole, U-steel, angle steel, or wall.
Installing an RRU on a Pole
Figure 3-4 shows the diameter of a metal pole for installing an RRU.
Figure 3-4 Diameter of a pole
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
10 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
|
|
|
|
The diameter of a pole for installing an RRU ranges from 60 mm to 114 mm (2.36 in. to 4.49 in.). The recommended diameter is 80 mm (3.15 in.).
If the diameter of a pole ranges from 60 mm to 76 mm (2.36 in. to 2.99 in.), a maximum of three RRUs can be installed on the pole and the side-mounted installation must not be adopted.
If three or more RRUs must be installed on a pole in centralized mode, the diameter of the pole must range from 76 mm to 114 mm (2.99 in. to 4.49 in.).
The recommended pole thickness is 3.5 mm (0.14 in.) or thicker.
The angle between the vertical plane and the pole, angle steel, or U-steel must be smaller than or equal to 10°, as shown in Figure 3-5.
Figure 3-5 Requirement of the angle between the ground and the pole, angle steel, or U-steel
(1) RRU (2) Pole, angle steel, or U-steel
Figure 3-6 shows an RRU installed on a pole.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
11 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-6 RRU installed on a pole
Installing an RRU on U-steel
It is recommended that only one RRU be installed on U-steel.
Figure 3-7 shows U-steel specifications.
Figure 3-7 U-steel specifications
Figure 3-8 shows an RRU installed on U-steel.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
12 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-8 RRU installed on U-steel
Installing an RRU on Angle Steel
Figure 3-9 shows angle steel specifications.
Figure 3-9 Angle steel specifications
It is recommended that only one RRU be installed on angle steel.
Figure 3-10 shows an RRU installed on angle steel.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
13 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-10 RRU installed on angle steel
Installing an RRU on a Wall
The wall on which RRUs are installed must meet the following requirements:
When a single RRU is installed, the wall has a capacity of bearing at least four times the weight of the RRU.
Expansion bolts must be tightened with a torque of 30 N·m (265.52 lbf·in.) to ensure the bolts work properly and the wall remains intact without cracks in it.
Figure 3-11 shows an RRU installed on a wall.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
14 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-11 RRU installed on a wall
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.
The recommended installation clearance ensures normal running and provides an appropriate space for OM. If there is sufficient space, leave the recommended installation clearance.
The minimum installation clearance ensures normal running and heat dissipation, but OM activities such as checking indicator status and opening the maintenance cavity cannot be properly conducted. If the installation space is restricted, leave the minimum installation clearance.
3.5.1 Clearance for a Single RRU
This section describes the recommended and minimum clearance for a single RRU.
Recommended Clearance for a Single RRU
Figure 3-12 shows the recommended clearance for a single RRU.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
15 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-12 Recommended clearance for a single RRU
Minimum Clearance for a Single RRU
Figure 3-13 shows the minimum clearance for a single RRU.
Figure 3-13 Minimum clearance for a single RRU
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
16 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Minimum Clearance for a Single RRU Installed on a Tower
Figure 3-14 shows the minimum clearance for a single RRU installed on a tower.
Figure 3-14 Minimum clearance for a single RRU installed on a tower
3.5.2 Clearance for Multiple RRUs
This section describes the recommended and minimum clearance for multiple RRUs.
Recommended Clearance for Multiple RRUs Installed in Centralized Mode
Figure 3-15 shows the recommended clearance for multiple RRUs installed in centralized mode.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
17 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-15 Recommended clearance for multiple RRUs installed in centralized mode
Minimum Clearance for Multiple RRUs Installed in Centralized Mode
Figure 3-16 shows the minimum clearance for multiple RRUs installed in centralized mode.
Figure 3-16 Minimum clearance for multiple RRUs installed in centralized mode
Recommended clearance for multiple RRUs installed on a wall in standard mode
Figure 3-17 shows the recommended clearance for multiple RRUs installed on a wall in standard mode.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
18 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-17 Recommended clearance for multiple RRUs installed on a wall in standard mode
Minimum clearance for multiple RRUs installed on a wall in standard mode
Figure 3-18 shows the minimum clearance for multiple RRUs installed on a wall in standard mode.
Figure 3-18 Minimum clearance for multiple RRUs installed on a wall in standard mode
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
19 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Recommended Clearance for Multiple RRUs Side-Mounted on a Wall
Figure 3-19 shows the recommended clearance for multiple RRUs side-mounted on a wall.
Figure 3-19 Recommended clearance for multiple RRUs side-mounted on a wall
3.5.3 Spacing Between RRUs
This section describes the horizontal and vertical installation spacing between RRUs.
Recommended horizontal spacing between RRUs
Figure 3-20 shows the recommended horizontal spacing between RRUs.
Figure 3-20 Recommended horizontal spacing between RRUs
Minimum horizontal spacing between RRUs
Figure 3-21 shows the minimum horizontal spacing between RRUs.
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
20 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Figure 3-21 Minimum horizontal spacing between RRUs
Recommended vertical spacing between RRUs
Figure 3-22 shows the recommended vertical spacing between RRUs.
Figure 3-22 Recommended vertical spacing between RRUs
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
21 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
eRelay DBS3900 RRU3252/RRU3256 Installation Guide |
3 Information About the Installation |
Minimum vertical spacing between RRUs
Figure 3-23 shows the minimum vertical spacing between RRUs.
Figure 3-23 Minimum vertical spacing between RRUs
Issue Draft A (2012-11-30) |
Huawei Proprietary and Confidential |
22 |
|
Copyright © Huawei Technologies Co., Ltd. |
|
Loading...