ZTE R8854S2600 Macro Radio Remote Unit User Manual part 1
ZTE Corporation Macro Radio Remote Unit part 1
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Contents
- 1. User manual part 1
- 2. User manual part 2
- 3. User manual part 3
User manual part 1
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ZXSDR R8854
Macro Radio Remote Unit
Hardware Installation
Version: 1.0
ZTE CORPORATION
No. 55, Hi-tech Road South, ShenZhen, P.R.China
Postcode: 518057
Tel: +86-755-26771900
Fax: +86-755-26770801
URL: http://support.zte.com.cn
E-mail: 800@zte.com.cn
LEGAL INFORMATION
Copyright © 2017 ZTE CORPORATION.
The contents of this document are protected by copyright laws and international treaties. Any reproduction or
distribution of this document or any portion of this document, in any form by any means, without the prior written
consent of ZTE CORPORATION is prohibited.
Additionally, the contents of this document are protected by
contractual confidentiality obligations.
All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE
CORPORATION or of their respective owners.
This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions
are disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose,
title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the
use of or reliance on the information contained herein.
ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications
covering the subject matter of this document. Except as expressly provided in any written license between ZTE
CORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter
herein.
ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice.
Users may visit the ZTE technical support website http://support.zte.com.cn to inquire for related information.
The ultimate right to interpret this product resides in ZTE CORPORATION.
Revision History
Revision No.
Revision Date
Revision Reason
R1.3
2018–01–03
Updated the way to bundle the RRU in 2.2 Precautions for
Device Hoisting.
Updated thefollowing sections: 4 RRU Installation, 4.1
Installing an RRU on a Wall, 4.2 Installing a Single RRU on
a Pole, 4.3 Installing Two RRUs on a Pole, 4.5 Installing
an RRU on a Gantry, 4.6 Installing an RRU on a L-shape
Support.
Added new section: 4.4 Installing a Single RRU in Pole
Hoop-Mounted Mode.
R1.2
2016-07-30
Added scald protection information in Section 2.3 Installation
Precautions
R1.1
R1.0
2016-06-20
2016-04-06
Updated “5.2 Installing Antenna Feeder Cables”
Updated “5.5 Installing the DC Power Input Cable”
Added “Appendix A Installing the DC Junction Box”
First edition
Serial Number: SJ-20160405141455-003
Publishing Date: 2018-01-03 (R1.3)
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Contents
About This Manual ......................................................................................... I
Chapter 1 Installation Flow........................................................................ 1-1
Chapter 2 Installation Preparations .......................................................... 2-1
2.1 Precautions for Device Transport......................................................................... 2-1
2.2 Precautions for Device Hoisting........................................................................... 2-1
2.3 Installation Precautions....................................................................................... 2-4
2.4 Instruments and Meters List ................................................................................ 2-6
2.5 Installation Space Requirement........................................................................... 2-7
Chapter 3 Unpacking and Inspection ....................................................... 3-1
Chapter 4 RRU Installation ........................................................................ 4-1
4.1 Installing an RRU on a Wall ................................................................................ 4-5
4.2 Installing a Single RRU on a Pole .......................................................................4-11
4.3 Installing Two RRUs on a Pole .......................................................................... 4-17
4.4 Installing a Single RRU in Pole Hoop-Mounted Mode.......................................... 4-22
4.5 Installing an RRU on a Gantry ........................................................................... 4-27
4.6 Installing an RRU on a L-shape Support ............................................................ 4-32
Chapter 5 Cable Installation ...................................................................... 5-1
5.1 Installing the Protective Grounding Cable............................................................. 5-3
5.2 Installing Antenna Feeder Cables ........................................................................ 5-5
5.3 Installing a Monitoring Cable ............................................................................... 5-7
5.4 Installing the AISG Cable .................................................................................... 5-8
5.5 Installing the DC Power Input Cable .................................................................. 5-10
5.6 Installing an Optical Fiber Cable ........................................................................ 5-15
5.7 Unused Interface Protection.............................................................................. 5-18
Chapter 6 Post-Installation Check ............................................................ 6-1
Chapter 7 Power-on Inspection................................................................. 7-1
Chapter 8 Closure....................................................................................... 8-1
Chapter 9 Installing the DC Junction Box................................................ 9-1
Chapter 10 Waterproofing Outdoor Connectors ................................... 10-1
Chapter 11 Installing a Gantry................................................................. 11-1
Chapter 12 Labeling Specifications........................................................ 12-1
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Figures............................................................................................................. I
Tables .............................................................................................................V
Glossary .......................................................................................................VII
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About This Manual
Purpose
This manual describes how to install the ZXSDR R8854.
Intended Audience
This manual is intended for:
Installation engineers
Maintenance engineers
What Is in This Manual
This manual contains the following chapters.
Chapter 1, Installation Flow
Describes the installation flow of the ZXSDR R8854.
Chapter 2, Installation
Describes preparations before equipment installation.
Preparations
Chapter 3, Unpacking and
Describes precautions about equipment unpacking and inspection.
Inspection
Chapter 4, RRU Installation
Describes how to install the ZXSDR R8854.
Chapter 5, Cable Installation
Describes how to install external cables for the ZXSDR R8854.
Chapter 6, Post-Installation
Describes how to inspect hardware installation.
Check
Chapter 7, Power-on Inspection
Describes how to inspect the operation of the ZXSDR R8854 after
the ZXSDR R8854 is powered on.
Chapter 8, Closure
Describes the operations that need to be implemented after all
hardware components are installed.
Chapter 9, Installing the DC
Describes how to install the DC junction box.
Junction Box
Chapter 10, Waterproofing
Describes the procedure for connecting and waterproofing the
Outdoor Connectors
outdoor connectors.
Chapter 11, Installing a Gantry
Describes how to install a gantry.
Chapter 12, Labeling
Describes how to correctly use outdoor and indoor labels.
Specifications
Conventions
This manual uses the following conventions.
Italics
Variables in commands. It may also refer to other related manuals and documents.
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Bold
Menus, menu options, function names, input fields, option button names, check boxes,
drop-down lists, dialog box names, window names, parameters, and commands.
Constant
Text that you type, program codes, filenames, directory names, and function names.
width
[]
Optional parameters.
{}
Mandatory parameters.
Separates individual parameters in a series of parameters.
Danger: indicates an imminently hazardous situation. Failure to comply will result in
death or serious personal injury.
Warning: indicates a potentially hazardous situation. Failure to comply can result in
death or serious personal injury.
Caution: indicates a potentially hazardous situation. Failure to comply can result in
moderate or minor personal injury.
Notice: indicates equipment or environment safety information. Failure to comply
can result in equipment damage, data loss, equipment performance degradation,
environmental contamination, or other unpredictable results.
Note: provides additional information about a topic.
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Chapter 1
Installation Flow
For the installation flow of the ZXSDR R8854, see Figure 1-1.
Figure 1-1 ZXSDR R8854 Installation Flow
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Chapter 2
Installation Preparations
Before installing the ZXSDR R8854, installation engineers should check the installation
environment and deliver an Environment Acceptance Report.
Installation parts, tools, and instruments should be available before installation.
Caution!
The ZXSDR R8854 must be powered on within 24 hours after it is unpacked.
The power-off duration of the ZXSDR R8854 must not be greater than 24 hours during
maintenance.
Table of Contents
Precautions for Device Transport ...............................................................................2-1
Precautions for Device Hoisting..................................................................................2-1
Installation Precautions ..............................................................................................2-4
Instruments and Meters List .......................................................................................2-6
Installation Space Requirement ..................................................................................2-7
2.1 Precautions for Device Transport
A device must be transported with the outer packing container to protect the device
from scratches.
After the packing container is removed on site, the device must be protected when
you move or store it. For example, when a device is stored temporarily, cushioning
materials must be put under the bottom of the device to avoid direct contact with the
ground and surrounding objects.
When you transport a device, cushioning materials such as foamed plastic and
paperboard must be used to protect the device from scratches. When you lift a
device up, the device must be dragged properly to avoid collision with other objects.
2.2 Precautions for Device Hoisting
The information provided is used for reference when it is necessary to hoist the RRU.
1. Installer A on the tower secures the fixed pulley to the tower, and passes the hoisting
rope through the fixed pulley down to the ground, see Figure 2-1.
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Figure 2-1 Device Hoisting
1. Fixed pulley
2. Hauling rope
3. Hoisting rope
Caution!
Installer A on the tower cannot loosen the fixed rope until he confirms that the device
is securely placed on the tower platform.
2. Installer C on the ground binds the RRU tightly, see Figure 2-2.
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Figure 2-2 Binds the RRU
Note:
Pass the hoisting rope through the handle and hoisting hole.
Pass the hauling rope through the handle on the top of the RRU, avoiding the RRU
mounting bracket, and get the rope stuck between the grounding point and the
protection block at the bottom of the RRU. Bundle the RRU with the rope between
the grounding point and the protection block at the bottom of the RRU, ensuring that
the RRU is bundled firmly.
3. Installer B on the ground drags the hoisting rope downwards. At the same time,
installer C pulls the hauling rope out wards to protect the device from colliding with
the tower when the device reaches the mounting platform, see Figure 2-1.
4. Lift the properly-packed engineering materials used for tower mounting onto the tower
in the manner mentioned above.
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Caution!
Never lift the engineering materials by binding them directly to the hoisting repe.
2.3 Installation Precautions
1. Do not open the equipment's airtight part, see Figure 2-3.
Figure 2-3 Do Not Open the Airtight Part
2. The RRU box has a layer of rustproof paint that protects it from being scratched during
transportation and installation.
3. Do not install any port upwards, see Figure 2-4.
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Figure 2-4 Do Not Install Any Port Upwards
4. Do not use the horizontal installation mode, see Figure 2-5.
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Figure 2-5 Do Not Install the RRU Horizontally
5. The device must be installed in a special area where protection measures are taken
and only maintenance personnel under the control of the responsible unit can enter.
6. Before maintaining the device, power off the device to cool it down. The device cannot
be operated until the case temperature is below 70 °C to avoid scald.
Note:
The duration for cooling the device down after power-off cannot be longer than the
maintenance time. The duration for waiting for the cooldown should be determined
through testing.
2.4 Instruments and Meters List
Table 2-1 lists the instruments and meters required for installing the ZXSDR R8854.
Table 2-1 Instruments and Meters List
Item
List
General-purpose
Measuring and ruling instruments:
instruments
5 m steel tape, 1 m ruler, gradienter, marker, drilling template
Drilling instruments:
Electric percussion drill (auxiliary drill bits) and vacuum cleaner
Tightening instruments:
Cross screwdrivers (M3–M6), Allen key (M5–M6), adjustable wrench
(M10), and torque wrench
Small instruments:
Snipe-nose pliers, diagonal pliers, vices, file, hacksaw, and hydraulic
pressure pliers
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Item
List
Auxiliary instruments:
Chain wheel, Ladder, Rope, scissors, slip-proof gloves, safety helmet,
connector card, paintbrush, and hot air blower
Special-purpose
Multi-functional crimping pliers and feeder connector knife
instruments
Meters
Digital multimeter, VSWR tester, earth resistance tester, base station
tester, compass, field strength tester (for special purpose), and spectrum
analyzer (for special purpose)
2.5 Installation Space Requirement
Figure 2-6 shows the recommended space for installing ZXSDR R8854.
Figure 2-6 Recommended Space for Installing ZXSDR R8854 (in mm)
Figure 2-7 shows the minimum space for installing ZXSDR R8854.
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Figure 2-7 Minimum Space for Installing ZXSDR R8854 (in mm)
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Chapter 3
Unpacking and Inspection
Counting Goods
Verify that the packaging boxes are intact. If any damage is found, contact the
transport company immediately.
Unpack the boxes and verify that the goods are consistent with the inspection
checklist.
Verify that the chassis is in good condition without scratches, peeling paint, blisters,
or stains.
Verify that the accessories required for the installation are correct and complete.
Equipment Handover
After the examination of goods, the engineering supervisor and the operator's
representative should sign the Unpacking Acceptance Report. The Unpacking Acceptance
Report is made in duplicate, and kept by both parties. The engineering supervisor must
send the Unpacking Acceptance Report back to the representative office within seven
days for archiving.
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Chapter 4
RRU Installation
The ZXSDR R8854 can be installed in the following ways:
Wall-mounted installation, see Figure 4-1.
Figure 4-1 Wall-Mounted Installation
Pole-mounted installation, see Figure 4-2, Figure 4-3 and Figure 4-4.
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Figure 4-2 Pole-Mounted Installation of a Single RRU
Figure 4-3 Pole-Mounted Installation of Two RRUs
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Figure 4-4 Pole Hoop-Mounted Installation of a Single RRU
Gantry-mounted installation, see Figure 4-5.
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Figure 4-5 Gantry-Mounted Installation
L-shape support installation, see Figure 4-6.
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Figure 4-6 L-shape Support Installation
Table of Contents
Installing an RRU on a Wall........................................................................................4-5
Installing a Single RRU on a Pole.............................................................................4-11
Installing Two RRUs on a Pole .................................................................................4-17
Installing a Single RRU in Pole Hoop-Mounted Mode ...............................................4-22
Installing an RRU on a Gantry ..................................................................................4-27
Installing an RRU on a L-shape Support...................................................................4-32
4.1 Installing an RRU on a Wall
An RRU can be installed on a wall when used indoors, outdoors, or in a high-speed rail
scenario.
This procedure describes how to install the ZXSDR R8854 on a wall.
Context
For a description of the accessories used for installing an RRU on a wall, refer to Table
4-1.
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Table 4-1 Accessories for Wall-Mounted Installation
Name
External View
Fixing clamp
RRU support
Steps
Drilling a Hole
1. Mark the hole positions on the wall with a drilling template, see Figure 4-7.
Figure 4-7 Installation Positions of Expansion Bolts
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2. Drill an 80 mm-deep hole in the marked position with a φ12 drill bit. Make sure that
the hole is vertical to the wall and remove dust with a vacuum cleaner during drilling.
Installing an Expansion Bolt
3. Install an expansion bolt, see Figure 4-9.
Figure 4-8 shows an external view of an expansion bolt.
Figure 4-8 External View of an Expansion Bolt
1. Nut
2. Spring washer
3. Flat washer
4. Bolt
5. Expansion tube
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Figure 4-9 Installing an Expansion Bolt
Step
Description
Slightly turn the expansion bolt clockwise to prevent it from moving freely.
Before hammering the expansion bolt with a claw hammer, take a nut with
the same specifications as the nut of this expansion bolt and turn the nut
until the top of nut is flush with that of the expansion bolt to avoid damaging
the thread during hammering.
Hammer the expansion bolt into the installation hole with a claw hammer.
Fasten the nut near the expansion tube clockwise to allow the expansion bolt
to fully expand.
Loosen the nut counterclockwise and remove the nut, spring washer, and flat
washer in turn for use during subsequent installation.
Installing the Fixing Clamp
4. Secure the fixing clamp to the wall with a torque of 40 N•m, with the nuts, spring
washers, and flat washers removed from the expansion bolts, see Figure 4-10.
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Figure 4-10 Securing the Fixing Clamp
1. Nut
2. Spring washer
3. Flat washer
Note:
The yellow arrow on the fixing clamp should point upwards during installation.
Securing the RRU
5. Fix the RRU support to the back of the RRU with four M6 screws with a torque of 8
N•m, see Figure 4-11.
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Figure 4-11 Installing the RRU Support
6. Install the RRU support to the fixing clamp, see Figure 4-12.
Figure 4-12 Installing the RRU Support to the Fixing Clamp
7. Tighten the captive screw on the top of the RRU support with an M6 Allen hex wrench,
see Figure 4-13.
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Figure 4-13 Securing the RRU
– End of Steps –
4.2 Installing a Single RRU on a Pole
A single RRU can be installed on a round pole (φ40–120 mm), a channel steel pole
(φ60–100 mm), or an angle steel pole (φ63–100 mm).
The following description and procedure are based on round pole-mounted installation.
Figure 4-14 and Figure 4-15 show channel steel pole-mounted installation and angle steel
pole-mounted installation respectively.
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Figure 4-14 Channel Steel Pole-Mounted Installation
Figure 4-15 Angle Steel Pole-Mounted Installation
Context
For a description of the accessories used for installing a single RRU on a pole, refer to
Table 4-2.
Table 4-2 Accessories for Single-RRU Pole-Mounted Installation
Name
External View
Pole component
(pole-mounted mode
of a single RRU)
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Name
External View
RRU support
Steps
Fixing the Pole Mount Assembly
1. Insert an M10 screw through the installation hole on the one side of the fixing clip, and
install the plat washer, spring washer, and nut on the other side of the hole, see Figure
4-16.
Figure 4-16 Assembling the Pole Mount Assembly
1. Screw
2. Fixing clip
3. Installation bracket
4. Flat washer
5. Spring washer
6. Nut
2. Assemble the pole component to the pole through the U-shape open side of the
installation bracket, and then install the screw into the U-shape slot, see Figure 4-17.
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Figure 4-17 Installing the Pole Mount Assembly (1)
Note:
When installing the fixing clip, ensure that the yellow arrow of the fixing clip is upward.
3. Tighten the nuts on both sides of the pole component with an adjustable wrench to fix
the pole component on the pole, see Figure 4-18.
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Figure 4-18 Installing the Pole Mount Assembly (2)
Installing the RRU Support
4. Fix the RRU support to the back of the RRU with four M6 screws with a torque of 8
N•m, see Figure 4-19.
Figure 4-19 Installing the RRU Support
Securing the RRU
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5. Mount the ZXSDR R8854 to the pole component along the rail of the fixing clip, see
Figure 4-20.
Figure 4-20 Installing the RRU on the Pole Mount Assembly
6. Tighten the captive screw on the RRU support with an M6 inner-hexagon wrench to
fix the ZXSDR R8854, see Figure 4-21.
Figure 4-21 Securing the RRU
– End of Steps –
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4.3 Installing Two RRUs on a Pole
This procedure describes how to install two RRUs on a pole. The procedure for installing
two RRUs on a pole is similar to that for installing a single one.
Context
For a description of the accessories used for installing two RRUs on a pole, refer to Table
4-3.
Table 4-3 Accessories for Two-RRU Pole-Mounted Installation
Name
External View
Pole component
(pole-mounted mode
of two RRUs)
RRU support
Steps
Fixing the Pole Mount Assembly
1. Insert an M10 screw through the installation hole on the one side of the fixing clip, and
install the plat washer, spring washer, and nut on the other side of the hole, see Figure
4-22.
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Figure 4-22 Assembling the Pole Component
1. Screw
2. Fixing clip
3. Flat washer
4. Spring washer
5. Nut
2. Assemble the pole component to the pole, and install the screw on the other side of
the fixing clip, see Figure 4-23.
Figure 4-23 Installing the Pole Component (1)
3. Tighten the nuts on both sides of the pole component with an adjustable wrench with
a torque of 40 N m to fix the pole component on the pole, see Figure 4-24.
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Figure 4-24 Installing the Pole Component (2)
Note:
When tightening the nuts, you need to adjust the position of the screws and ensure
that the exposed lengths of the screws on both sides of the fixing clip are the same.
Otherwise, RRU installation may be affected.
Installing the RRU Support
4. Fix the RRU support to the back of the RRU with four M6 screws with a torque of 8
N•m, see Figure 4-25.
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Figure 4-25 Installing the RRU Support
Securing the RRUs
5. Install the two RRUs on the pole mount assembly along the guide rails on the fixing
clamps respectively, see Figure 4-26.
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Figure 4-26 Installing the RRUs on the Pole Mount Assembly
6. Tighten the captive screws on the top of all the RRU supports with an M6 Allen hex
wrench respectively, see Figure 4-27.
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Figure 4-27 Securing the RRUs
– End of Steps –
4.4 Installing a Single RRU in Pole Hoop-Mounted Mode
This procedure describes how to install the ZXSDR R8854 through pole hoops. This
installation mode is applicable to the pole with the diameter of 120 mm-380 mm.
Context
For the required installation accessories of pole hoop-mounted mode, refer to Table 4-4.
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Table 4-4 Installation Accessories of Pole Hoop-Mounted Installation Mode of a Single
RRU
Accessory
Overview
Fixing clip
Pole hoop
ZXSDR R8854 support
Steps
1. Install the RRU support to the rear panel of the ZXSDR R8854 with four M6 screws,
see Figure 4-28.
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Figure 4-28 Installing the RRU Support
2. Install the fixing clip to the pole, see Figure 4-29.
a. Install pole hoops to the fixing clip.
b. Fix the fixing clip on the pole through the pole hoops.
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c.
Tighten the screws on the pole hoops.
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Figure 4-29 Installing the Fixing Clip to the Pole
3. Mount the ZXSDR R8854 to the fixing clip on the pole along the rail of the fixing clip,
see Figure 4-30.
Figure 4-30 Mounting the ZXSDR R8854
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4. Tighten the captive screw on the RRU support with an M6 inner-hexagon wrench to
fix the ZXSDR R8854, see Figure 4-31.
Figure 4-31 Tightening the Captive Screw
– End of Steps –
4.5 Installing an RRU on a Gantry
This procedure describes how to install an RRU on a gantry.
Context
For a description of the accessories used for installing an RRU on a gantry, refer to Table
4-5.
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Table 4-5 Accessories for Gantry-Mounted Installation
Name
External View
Gantry
Fixing clamp
Adapter plate
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Name
External View
RRU support
Steps
1. Fix the adapter plate to the gantry with four M8 bolts and nuts with a torque of 20 N•m,
see Figure 4-32.
Figure 4-32 Installing the Adapter Plate
1. Bolt
2. Adapter plate
3. Flat washer
4. Spring washer
5. Nut
2. Secure the fixing clamp to the adapter plate with four M10 bolts and nuts with a torque
of 40 N•m, see Figure 4-33.
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Figure 4-33 Securing the Fixing Clamp
3. Fix the RRU support to the back of the RRU with four M6 screws with a torque of 8
N•m, see Figure 4-34.
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Figure 4-34 Installing the RRU Support
4. Install the RRU on the gantry along the guide rail of the fixing clamp and tighten the
captive screw on the top of the RRU support with an M6 Allen hex wrench, see Figure
4-35.
Figure 4-35 Installing the RRU on the Gantry
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– End of Steps –
4.6 Installing an RRU on a L-shape Support
This procedure describes how to install an RRU on a L-shape support.
Context
For a description of the accessories used for installing an RRU on a L-shape support, refer
to Table 4-6.
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Table 4-6 Accessories for L-shape Support Installation
Name
External View
L-shape support
Fixing clamp
RRU support
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Steps
1. Secure the fixing clamp to the adapter plate with four M10 bolts and nuts with a torque
of 40 N•m, see Figure 4-36.
Figure 4-36 Securing the Fixing Clamp
2. Fix the RRU support to the back of the RRU with four M6 screws with a torque of 8
N•m, see Figure 4-37.
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Figure 4-37 Installing the RRU Support
3. Install the RRU on the L-shape support along the guide rail of the fixing clamp and
tighten the captive screw on the top of the RRU support with an M6 Allen hex wrench,
see Figure 4-38.
Figure 4-38 Installing the RRU on the L-shape Support
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– End of Steps –
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Chapter 5
Cable Installation
Cable List
Item
Grounding Cable
Local Equipment
Interconnected Equipment
OT terminal
OT terminal
Local grounding terminal of RRU
Grounding bar
Tubular terminal
Cold-pressed terminal
Interconnected
Local power terminal of RRU,
Used to connect DCPD, made on
Port
made on site.
site.
DLC, LC
DLC, FC×2, LC, SC
Interconnected
Cable's RRU end connected to the
Cable's BBU end connected to the
Port (RRU-
OPT1
BBU
DLC, LC
DLC, LC
Interconnected
The OPT2 port of the upper-layer
The OPT1 port of the lower-layer
Port (RRU-
RRU
RRU
DIN-type male connector
DIN-type male connector
ANT port
Antenna's RF port
External View
Connector
Type
Interconnected
Port
DC
Power
Cable
Optical
Cable
External View
Connector
Type
External View
Connector
Type
BBU)
External View
Connector
Type
RRU)
RF
External View
Cable
Connector
Type
Interconnected
Port
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Item
AISG
Local Equipment
Interconnected Equipment
DB15 connector
AISG connector
Local AISG/MON port of RRU
RCU's AISG port of the tunable
External View
Cable
Connector
Type
Interconnected
Port
MON
antenna
External View
Cable
Connector
DB15 connector
Naked cables
Local AISG/MON port of RRU
External monitoring device
Type
Interconnected
Port
Cable Connection Diagram
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Figure 5-1 Cable Connection Diagram
1. DC power cable
2. Optical cable
3. Grounding cable
4. RF Cable
5. AISG/MON Cable
Table of Contents
Installing the Protective Grounding Cable ...................................................................5-3
Installing Antenna Feeder Cables...............................................................................5-5
Installing a Monitoring Cable ......................................................................................5-7
Installing the AISG Cable ...........................................................................................5-8
Installing the DC Power Input Cable .........................................................................5-10
Installing an Optical Fiber Cable ...............................................................................5-15
Unused Interface Protection .....................................................................................5-18
5.1 Installing the Protective Grounding Cable
This procedure describes how to install the protective grounding cable. The protective
grounding cable is a copper-core cable with a cross-sectional area of 16 mm2.
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Steps
1. Route the protective grounding cable from the indoor or outdoor grounding busbar to
the RRU.
2. Crimp an OT terminal at the RRU end of the protective grounding cable.
3. Fix one end of the protective grounding cable to the grounding screw at the bottom of
the ZXSDR R8854, see Figure 5-2.
Figure 5-2 Connecting the Protective Grounding Cable to the Grounding Busbar
(Directly)
Note:
About 30 cm of the cable should droop freely before the cable is routed to the pole or
cable tray.
4. Remove the rust on the grounding busbar and crimp an OT terminal at the other end
of the protective grounding cable.
5. Connect the other end of the protective grounding cable to the grounding busbar and
fix it to a bolt, see Figure 5-2.
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6. Bundle and label the cable.
7. Apply antirust paint around the grounding bolts on the grounding busbar.
– End of Steps –
5.2 Installing Antenna Feeder Cables
This procedure describes how to install an antenna feeder cable.
There are two types of antenna feeder cables, antenna feeders and jumpers. The distance
between the RRU and the antenna determines how to install an antenna feeder cable. For
details, refer to Table 5-1.
Table 5-1 Antenna Feeder Cable Installation
If...
Then...
The distance between the base station and
A feeder jumper is used.
the antenna is less than five meters
The distance between the base station and
A 1/2" feeder is used.
the antenna is greater than five meters and
less than 20 meters
Steps
1. (Optional) Install a heat-shrink sleeve on the feeder connector if a feeder connector
needs to be made on site, see Figure 5-3.
Figure 5-3 Making a Feeder Connector
Note:
If the distance between the base station and the antenna is greater than five meters,
both feeders and jumpers are used for connection. In this case, feeder connectors
should be made on site.
2. Connect the feeder cable to the antenna feeder interface on the RRU chassis, see
Figure 5-4.
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Figure 5-4 Installing Antenna Feeder Cables
3. Fasten the feeder connector clockwise with a adjustable wrench.
4. Protect the cable connectors against water.
Waterproofing Outdoor Connectors.
For details, refer to Chapter 10
5. Lay the antenna feeder cable on the antenna side and bind it with black cable ties.
The feeder should be laid vertically at least 200 mm from the lower edge of the device
when it is led out from the bottom of the RRU chassis. It should not be bent. The
minimum bending radius of the feeder should not be less than 20 times the feeder's
radius. It is prohibited to coil the feeder.
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6. Connect the other end of the feeder to the ANT interface on the antenna. Take
waterproof measures.
7. Label the feeder cable with plastic.
8. Repeat steps 1 through 7 to install other feeder cables, see Figure 5-5.
Figure 5-5 ZXSDR R8854 Antenna Feeder Connection Diagram
– End of Steps –
5.3 Installing a Monitoring Cable
This procedure describes how to install a monitoring (MON) cable.
A monitoring cable is used to connect the dry contact interface of an external monitoring
device.
Steps
1. Connect one end of the monitoring cable to the AISG/MON interface at the bottom of
the ZXSDR R8854 chassis, see Figure 5-6.
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Figure 5-6 Installing a Monitoring Cable
2. Connect the other end of the monitoring cable to the dry contact interface of the
external monitoring device.
3. Bundle and label the cable.
– End of Steps –
5.4 Installing the AISG Cable
An AISG cable between the RF module and an RET antenna is used to transmit the signals
to or from the RET antenna.
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Steps
1. Connect one end of the AISG interface cable to the AISG/MON port on the ZXSDR
R8854, see Figure 5-7.
Figure 5-7 Installing the AISG Cable
2. Connect the other end to the AISG port on the RET antenna.
3. Bundle and label the cable.
– End of Steps –
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5.5 Installing the DC Power Input Cable
This procedure describes how to install the DC power input cable.
Context
The ZXSDR R8854 DC power connector supports power cables with the sectional area of
4 mm2 or 6 mm2. If the power cable with the sectional area of 10 mm2 or 16 mm2 must be
used because the distance between theZXSDR R8854 and an external power supply is
too long, a DC junction box (ODCPD1) is needed to connect the power cable to that with
the section area of 4 mm2 or 6 mm2. For how to install the DC junction box (ODCPD1),
refer to Chapter 9 Installing the DC Junction Box.
Steps
Open the maintenance window
1. Open the maintenance window at the side of the ZXSDR R8854, see Figure 5-8.
Figure 5-8 Open the maintenance window
Making the Power Cable Connector
2. Follow the maintenance window diagram to tailor the naked shielding layer, child
cables, and naked copper cores. Sheathe the tailored cooper cores with tubular
terminals and use the crimping pliers to crimp these tubular terminals, see Figure 5-9.
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Figure 5-9 Wire stripping the power cable
3. Pass the tubular terminal round the trimmed bare copper core and crimp the tubular
terminal with the crimping pliers.
4. Confirm the polarity of the power connector's socket connected to the power cable.
5. Use the screwdriver to press the mandrill until it cannot rebound and stuff the tubular
terminals into the crimping tube, see Figure 5-10. It is required that the leading ends
of conductors be completely inserted and have a close contact with the inner bottom
of the connector's plug.
Figure 5-10 Insert the crimped tubular terminal
1. Button
2. Pull-tab insulator
3. Mandrill
4. Crimping tube
5. Shell
Note:
Standard assembly requires that tubular terminals cannot be pushed forward any
more.
6. Press the red and blue buttons (you may use tools like screwdriver but are not allowed
to use heavy tools like hammer, or the plug may be managed). The mandrill ejects
automatically. If you pull the conductor with your hand but it does not fall down, it
indicates the conductor is installed securely.
Connecting Power Cable on the RRU
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7.
In the maintenance window, use the cross screwdriver to unscrew the crimping clip
and remove the waterproof plug, see Figure 5-11.
Figure 5-11 Unscrew the crimping clip
8. Insert the conductor plug into the power port inside the maintenance window, see
Figure 5-12. Push the plug forward unit you hear the sound of "click". If you shake
the plug shell but it does not loosen or fall down (you are not allowed to pull the plug's
pull-tab at this time), it indicates that the plug is installed securely and locked closely.
Figure 5-12 Insert the power cable
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9. Use the crimping clip to crimp the naked part of the shielding layer, secure the power
cable at the original waterproof plug, and ensure that the naked part has a close contact
with the crimping clip.
Note:
The top edge of the power cable's black outer sheath shall align with the bottom edge
of the crimping clip and shall not be lower than the top edge of the card slot.
10. Wrap the power cable along the pole or cable try and use black ties to bundle and
secure it.
If the DC Junction Box (ODCPD1) is equipped, refer to Chapter 9 Installing the DC
Junction Box.
Earthing the Power Cable
11. Connect the power cable to the grounding busbar through a grounding kit based on
the location of the baseband cabinet connected to the other end of the power cable,
see Figure 5-13.
If...
Then...
The baseband cabinet is
Connect the power cable to the outdoor grounding busbar through the
installed outdoors
grounding kit before the cable is led into the cable inlet hole of the
outdoor cabinet.
The baseband cabinet is
installed indoors
Connect the power cable to the grounding busbar through the grounding
kit before the cable is led into the room and near the feeder window.
Protect the grounding kit against water with the "1+3+3" solution if
the power cable is earthed before being led into the feeder window,
refer to Chapter 10 Waterproofing Outdoor Connectors.
Wind the grounding kit with two layers of insulating tape if the
power cable is earthed after being led into the feeder window. The
grounding cable is connected to the outdoor grounding busbar.
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Figure 5-13 Connecting the Power Cable to the Grounding Kit
Note:
When a grounding kit is used, the angle between the grounding cable and the power
cable cannot be upward or be greater than 15 degrees. If the grounding kit is away from
the feeder window, the grounding cable should be routed toward the feeder window
along the downward direction of the power cable.
Connecting the Power cable of the Power Supply Equipment
12. Use a tubular terminal to make the connector of the AC power cable at the BBU side,
and then connect the AC power cable to the DC output port of the DCPD, see Figure
5-14.
Figure 5-14 Connecting the Power Cable to the DCPD
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When you make the connector of the DC power cable, cut off the exposed shielded
layer after stripping off the cable end and bind the connector with a heat shrink tube
or insulating tape.
13. Label the power cable at both ends.
– End of Steps –
5.6 Installing an Optical Fiber Cable
This procedure describes how to install an optical fiber cable.
Steps
Installing Optical Fiber
1. Open the crimping clip at the left side of the maintenance window, see Figure 5-15.
Figure 5-15 Open the crimping clip
2. Remove the cable tie at one end of the corrugated pipe marked as "RRU" by using the
diagonal pliers.
3. Remove the white dust cap of the optical cable connector, see Figure 5-16.
Figure 5-16 Remove the white dust cap
1. White dust cap
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Note:
Do not remove the dust cap during the storage, transportation, and routing before
installation.
4. Insert the optical module into the ports OPT1 and OPT2 of the RRU. Align the
connector with the optical interface module, and insert it. When you hear the sound
of "bang", it indicates that the optical cable connector is installed properly, see Figure
5-17.
Figure 5-17 Insert the optical cable
Note:
In the case of cascaded connection with RRUs, use an optical fiber for cascading
connection to connect the OPT2 port of upper-level RRU and the OPT1 port of
lower-level RRU.
5. Secure the optical cable at the crimping clip in the wiring cavity, see Figure 5-18.
In the case of one optical cable, install it to the outgoing slot at the right side and use
a waterproof rubber plug to block the other slot.
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Figure 5-18 Secure the optical cable
Note:
In the maintenance window, there shall be a certain arc between the optical cable
connector and the optical cable. The bending radius shall be larger than 40 mm.
6. Bundle and fix the optical fiber cable.
The outdoor optical fiber cable should be laid vertically at least 200 mm from the lower
edge of the device when it is led out from the bottom of the RRU chassis. The optical
fiber cable should not be bent. The optical fiber cable is then fixed onto the pole or
cable tray. Coil the excess part of the optical fiber cable in a diameter of 300 mm to
400 mm and then bind the fiber coil to an appropriate position (for example, the wire
spool on the BBU) with black cable ties.
7. Remove the cable tie at one end of the corrugated pipe marked as "BBU" by using the
diagonal pliers and install it to the optical junction box or BBU.
8. Hang the plastic label of optical cable.
Close the maintenance window
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9. Put the remaining waterproof plugs back to their original positions after installing all
power cables and fibers. Close the panel of maintenance window and install the
screws securely to avoid water penetration.
Caution!
The screws must be fastened to prevent water intrusion.
– End of Steps –
5.7 Unused Interface Protection
After installing all cables, you need to protect all unused interfaces on the ZXSDR R8854.
Steps
1. Check an unused interface.
Check whether an unused interface is covered with a dustproof cap. If not, cover it
with a dustproof cap.
2. Waterproof a dustproof cap.
Wrap it with a black double-layer ultraviolet-proof tape: the first layer from top down,
the second layer from bottom up according to the direction of tightening the interface.
Make sure that the wrapped tape is flush with the lower surface of the cap. Tighten
the edge of the tape with a cable tie.
– End of Steps –
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