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background image

Figure 8-12

Inter-RRU cable connections

(1) PGND cable

(2) RRU RF jumper

(3) Inter-RRU RF cable

(4) CPRI fiber optic cable

(5) RRU power cable

-

NOTE

l

An RRU3942 can be interconnected with an RRU3804 or RRU3801E in the same sector using RX_IN/
OUT ports.

l

When an RRU3942 is interconnected with an RRU3804 or RRU3801E, the ANT_TX/RXA port on
the RRU3942 and the ANT_TX/RXA port on the RRU3804 or RRU3801E must be connected to the
same antenna.

l

When an RRU3942 is interconnected with an RRU3804 or RRU3801E, the ANT_RXC port on the
RRU3942 and the ANT_RXB port on the RRU3804 or RRU3801E do not need to be connected to an
antenna.

8.3 Installation Process

This section describes the process of installing RRU cables.

Figure 8-13

shows the process of installing RRU cables.

RRU3942&RRU3642
Installation Guide

8 Installing RRU Cables

Issue 07 (2013-12-30)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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Summary of Contents for RRU3642

Page 1: ...RRU3942 RRU3642 Installation Guide Issue 07 Date 2013 12 30 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... 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 ens...

Page 3: ...00R013C00 and later versions DBS3900 LTE V100R005C00 and later versions The following table lists the product version related to this document for RRU3642 Product Name Product Version DBS3900 V100R008C00 and later versions DBS3900 LTE V100R006C00 and later versions Intended Audience This document is intended for Base station installation engineers Organization 1 Changes in the RRU3942 RRU3642 Inst...

Page 4: ... the RRU 6 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 7 Installing the RRU This chapter describes the procedure for installing the RRU The procedure for installing the RRU varies depending on installation options 8 Installing RRU Cables This chapter describes the pro...

Page 5: ...mation not related to personal injury equipment damage and environment deterioration General Conventions The general conventions that may be found in this document are defined as follows Convention Description Times New Roman Normal paragraphs are in Times New Roman Boldface Names of files directories folders and users are in boldface For example log in as user root Italic Book titles are in itali...

Page 6: ...n Boldface Buttons menus parameters tabs window and dialog titles are in boldface For example click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder Keyboard Operations The keyboard operations that may be found in this document are defined as follows Format Description Key Press the key For example press Enter and press Tab Key 1 Key 2 Press the...

Page 7: ...e 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 RRU3942 RRU3642 Installation Guide About This Document Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd vi ...

Page 8: ...acing Between RRUs 34 4 Unpacking the Equipment 37 5 Installation Process 39 6 Hoisting an RRU and Related Cables onto a Tower 40 6 1 Hoisting an RRU onto a Tower 41 6 2 Hoisting Fiber Optic Cables onto a Tower 45 6 3 Hoisting Power Cables onto a Tower 47 7 Installing the RRU 50 7 1 Mounting Kits for an RRU 51 7 2 Installing the RRU on a Pole 51 7 2 1 Installing a Single RRU 52 7 2 2 Installing Tw...

Page 9: ...pening the Cover Plate of an RRU Cabling Cavity 105 8 10 Installing an RRU Power Cable 107 8 11 Installing a CPRI Fiber Optic Cable 109 8 12 Installing an RRU Alarm Cable 111 8 13 Closing the Cover Plate of an RRU Cabling Cavity 111 9 Checking the RRU Hardware Installation 114 10 Powering On an RRU 115 11 Appendix 117 11 1 Adding a Tool Less Female Connector Pressfit Type to the RRU Power Cable on...

Page 10: ...lude any new information and no information is deleted from this issue 06 2013 12 23 This is the sixth official release Compared with issue 05 2013 06 26 this issue includes the following change Topic Change Description 6 1 Hoisting an RRU onto a Tower Optimized the procedure for hoisting an RRU onto a Tower Compared with issue 05 2013 06 26 this issue does not include any new information and no i...

Page 11: ...ve been modified About This Document Changed the document name from RRU3942 Installation Guide to RRU3942 RRU3642 Installation Guide 2 2 Tools and Instruments Modified the specifications of the hammer drill and wrench 3 4 Installation Scenarios Modified the installation scenarios of the RRU 4 Unpacking the Equipment Added requirements for checking the insulation layer of RRU cables 7 Installing th...

Page 12: ... dustproof caps 6 2 Hoisting Fiber Optic Cables onto a Tower Optimized the procedure for hoisting 6 3 Hoisting Power Cables onto a Tower Compared with issue 01 2012 04 25 no information is deleted from this issue 01 2012 04 25 This is the first official release Compared with draft B 2012 04 16 this issue does not include any modification Draft B 2012 04 16 This is the draft Compared with issue dra...

Page 13: ... 2012 01 10 This is a draft RRU3942 RRU3642 Installation Guide 1 Changes in the RRU3942 RRU3642 Installation Guide Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 4 ...

Page 14: ... familiar with reference documents 2 2 Tools and Instruments You must prepare the following tools and instruments 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 RRU3942 RRU3642 Installation Guide 2 Installat...

Page 15: ...e l OCB 01M User Guide 2 2 Tools and Instruments You must prepare the following tools and instruments before the installation Hammer drill a φ12 bit ESD gloves Vacuum cleaner Heat gun Phillips screwdriver M3 to M6 Flat head screwdriver M3 to M6 Rubber mallet COAX crimping tool Wire stripper RRU3942 RRU3642 Installation Guide 2 Installation Preparations Issue 07 2013 12 30 Huawei Proprietary and Co...

Page 16: ...32 mm 1 26 in Level Torque screwdriver 5 mm 5 mm M3 to M6 M3 to M6 Torque socket Multimeter Marker diameter 10 mm 0 39 in Measuring tape Inner hexagon wrench Fixed pulley Lifting sling Hydraulic pliers RRU3942 RRU3642 Installation Guide 2 Installation Preparations Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 7 ...

Page 17: ... following items l The customer s technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods l The number of onsite personnel depends on the engineering schedule and installation environment Generally only three to five onsite personnel are necessary RRU3942 RRU3642 Installation Guide 2 Installation Preparations Issue 07 2013 12 30 Huawei Propr...

Page 18: ...escribes 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 wall 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 multi...

Page 19: ...ows 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 RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 10 ...

Page 20: ...ators on the RRU panels Item Silkscreen Description 1 Ports at the bottom ANT_TX RXA TX RX port A supporting RET signal transmission ANT_RXC RX port C ANT_RXD Port RX port D ANT_TX RXB TX RX port B RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 11 ...

Page 21: ...N See 3 3 RRU Indicators ALM ACT VSWR CPRI0 IR0 CPRI1 IR1 NOTE l The port for transmitting RET signals is determined by the software l For the RRU3942 both CPRI0 and CPRI1 can be conected to the BBU Use the CPRI0 by default in the single mode scenario l For the RRU3642 CPRI0 is connected to the BBU and the CPRI1 is reserved The RX_IN OUT is not used Table 3 2 describes how to use RF ports for RRU3...

Page 22: ...single sector 2 x 1T2R 4 ANT_TX RXA and ANT_RXC are used for one sector ANT_TX RXB and ANT_RXD are used for the other sector Two sectors l DBS3900 V100R007C00 and later versions l DBS3900 WCDMA V200R014C00 and later versions l DBS3900 LTE V100R005C00 and later versions 1 x 1T2R 2 It is recommended that ANT_TX RXA and ANT_RXC be used together You can also use ANT_TX RXB and ANT_RXD together A singl...

Page 23: ...00R013C00 DBS3900 GSM V300R013C00 or DBS3900 WCDMA V200R013C00 Figure 3 4 Recommended usage of RF ports on an RRU3942 used for DBS3900 V100R004C00 DBS3900 GSM V100R013C00 DBS3900 GSM V300R013C00 or DBS3900 WCDMA V200R013C00 Figure 3 5 shows the recommended usage of RF ports on an RRU3942 used for DBS3900 GSM V100R014C00 and later versions or DBS3900 GSM V300R014C00 and later versions RRU3942 RRU36...

Page 24: ... 6 shows the recommended usage of RF ports on an RRU3942 used for DBS3900 V100R007C00 and later versions DBS3900 WCDMA V200R014C00 and later versions or DBS3900 LTE V100R005C00 and later versions RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 15 ...

Page 25: ...3900 WCDMA V200R014C00 and later versions or DBS3900 LTE V100R005C00 and later versions Table 3 3 describes how to use RF ports for RRU3642 RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 16 ...

Page 26: ... 4 ANT_TX RXA and ANT_RXC are used for one sector ANT_TX RXB and ANT_RXD are used for the other sector Two sectors 1 x 2T4R 4 ANT_TX RXA ANT_TX RXB ANT_RXC and ANT_RXD are used together for one sector with ANT_TX RXA and ANT_RXC combined and ANT_TX RXB and ANT_RXD combined A single sector Figure 3 7 shows the recommended usage of RF ports on an RRU3642 used for DBS3900 LTE V100R006C00 and later ve...

Page 27: ...ning status For detailed positions of RRU indicators see 3 2 RRU Ports Table 3 4 describes RRU indicators Table 3 4 RRU indicators Indicator Color Status Meaning RUN Green Steady on There is power supply but the module is faulty RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 18 ...

Page 28: ... with TX channels disabled VSWR Red Steady off No Voltage Standing Wave Ratio VSWR alarm is generated Blinking on for 1s and off for 1s VSWR alarms are generated on the ANT_TX RXB port Steady on VSWR alarms are generated on the ANT_TX RXA port Blinking on for 0 125s and off for 0 125s VSWR alarms are generated on the ANT_TX RXA and ANT_TX RXB ports CPRI0 IR0 Red or green Steady green The CPRI link...

Page 29: ...narios must meet heat dissipation and waterproofing requirements of the RRU Requirements for the Installation Scenarios Method of installation l To ensure the heat dissipation of the RRU and waterproofing of the ports at the bottom of the RRU the vertical deviation angle of an RRU must be less than or equal to 10 degrees as shown in Figure 3 8 l On a tower an RRU can be installed on a pole angle s...

Page 30: ...ee RRUs can be installed on the pole l Only a pole whose diameter ranges from 76 mm 2 99 in to 114 mm 4 49 in supports more than three RRUs l The recommended thickness of the wall of a pole is 3 5 mm 0 14 in or above A single RRU can be installed in either side mounted or standard mode Figure 3 10 shows a single RRU installed on a pole Figure 3 10 A single RRU installed on a pole RRU3942 RRU3642 I...

Page 31: ...pole Figure 3 11 Two RRUs installed on a pole Figure 3 12 Figure 3 13 and Figure 3 14 show three or more RRUs installed on a pole Figure 3 12 Three RRUs installed on a pole RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 22 ...

Page 32: ...RUs installed on a pole Installing an RRU on U steel Figure 3 15 shows U steel specifications RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 23 ...

Page 33: ...6 shows an RRU installed on U steel Figure 3 16 RRU installed on U steel Installing an RRU on Angle Steel Figure 3 17 shows angle steel specifications RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 24 ...

Page 34: ...meet the following requirements l For each RRU the wall must be able to bear a weight four times the RRU s weight and the bolts pulling force of 1 25 kN 281 25 lbf vertical to the wall l Expansion bolts must be tightened to 15 N m 132 76 lbf in so that the bolts stay secured without damaging the wall RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei...

Page 35: ... beams on an IFS06 can be moved up and down to fit for heights of RRUs l The 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 op...

Page 36: ...he mounting brackets for multiple RRUs cannot be combined when the RRUs are installed on an IFS06 as shown in Figure 3 19 Figure 3 21 and Figure 3 22 show RRUs installed on an IFS06 Figure 3 21 Three RRUs installed on an IFS06 1 Height restricted scenario 2 Height unrestricted scenario RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary an...

Page 37: ...e installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs 3 5 1 Clearance for a Single RRU This section describes the recommended and minimum clearance for a single RRU RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 28...

Page 38: ...cabling cavity cannot be properly conducted If the installation space is restricted leave the minimum clearance after installing the equipment Recommended Clearance for a Single RRU Figure 3 23 shows the recommended clearance for a single RRU Figure 3 23 Recommended clearance for a single RRU Minimum Clearance for a Single RRU Figure 3 24 shows the minimum clearance for a single RRU RRU3942 RRU364...

Page 39: ...on a tower Figure 3 25 Minimum clearance for a single RRU on a tower 3 5 2 Clearances for Three or More RRUs This section describes the recommended and minimum clearances for three or more RRUs RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 30 ...

Page 40: ...he minimum clearances after the installation Recommended Clearances for Three or More RRUs Installed on a Pole Figure 3 26 shows the recommended clearances for multiple RRUs installed in centralized mode Figure 3 26 Recommended clearances for three or more RRUs installed on a pole Minimum Clearances for Three or More RRUs Installed on a Pole Figure 3 27 shows the minimum clearances for multiple RR...

Page 41: ...gure 3 28 shows the recommended clearances for multiple RRUs installed on a wall in standard mode Figure 3 28 Recommended clearances for three or more RRUs installed on a wall in standard mode RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 32 ...

Page 42: ...standard mode Recommended Clearances for Three or More RRUs Installed on a Wall in Side Mounted Mode Figure 3 30 shows the recommended clearances for three or more RRUs side mounted on a wall Figure 3 30 Recommended clearances for three or more RRUs installed on a wall in side mounted mode RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietar...

Page 43: ...ntal spacing between RRUs Minimum Horizontal Spacing Between RRUs Figure 3 32 shows the minimum horizontal spacing between RRUs Figure 3 32 Minimum horizontal spacing between RRUs Recommended Vertical Spacing Between RRUs Figure 3 33 shows the recommended vertical spacing between RRUs RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and...

Page 44: ...um Vertical Spacing Between RRUs Figure 3 34 shows the minimum vertical spacing between RRUs RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 35 ...

Page 45: ... 34 Minimum vertical spacing between RRUs RRU3942 RRU3642 Installation Guide 3 Information About the Installation Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 36 ...

Page 46: ... NOTICE l After a cabinet or an BBU is unpacked it must be powered on within 7 days l After an RRU is unpacked it must be powered on within 24 hours Procedure Step 1 Check the total number of articles in each case according to the packing list If Then The total number tallies with the packing list Go to Step 2 The total number does not tally with the packing list Find out the cause and report any ...

Page 47: ...ei office CAUTION l To protect the equipment and prevent damage to the equipment you are advised to keep the unpacked equipment and packing materials indoors take photos of the stocking environment packing case or carton packing materials and any rusted or eroded equipment and then file the photos l Verify that the insulation layers of all RRU cables are intact If the insulation layers are damaged...

Page 48: ... the RRU hardware installation and powering on the RRU Figure 5 1 shows the process of installing an RRU Figure 5 1 Process of installing an RRU RRU3942 RRU3642 Installation Guide 5 Installation Process Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 39 ...

Page 49: ...ios the RRU can be installed on a pole U steel or angle steel 6 2 Hoisting Fiber Optic Cables onto a Tower This section describes the procedure for hoisting fiber optic cables onto a tower and the precautions that must be taken 6 3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken RRU3942 RRU3642 In...

Page 50: ...ing from damage during the installation Procedure Step 1 After climbing up to the tower technician A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley Step 2 Technician C binds the mounting kits using the lifting sling and traction sling on the ground as shown in Figure 6 1 Then technician B pulls the lifting sling downwards and technician ...

Page 51: ...nd traction sling as shown in Figure 6 2 The binding methods in Figure 6 3 and Figure 6 4 are incorrect Figure 6 2 Binding the RRU 1 Lifting sling 2 Lifting eye 3 Traction sling 4 Handle RRU3942 RRU3642 Installation Guide 6 Hoisting an RRU and Related Cables onto a Tower Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 42 ...

Page 52: ... 6 5 Technician B pulls the lifting sling downwards and technician C pulls the traction sling outwards to protect the RRU from colliding with the tower RRU3942 RRU3642 Installation Guide 6 Hoisting an RRU and Related Cables onto a Tower Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 43 ...

Page 53: ...e angle steel or U steel Step 7 Technician A catches the RRU hoisted onto the tower Step 8 Technician A installs the RRU onto the main bracket and uses an inner hexagon torque screwdriver to tighten the captive screw into the hole of the attachment plate and main bracket to 5 N m 44 25 lbf in For detailed operations see steps 4 and 5 in 7 2 1 Installing a Single RRU Step 9 Untie the lifting sling ...

Page 54: ...es onto the tower connect the fiber optic cables to the RRU or BBU based on the labels on both ends of the cables and determine the hoisting direction 1 After climbing up to the tower installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley 2 Installation engineer B places the fiber coiler for coiling fiber optic cables on ...

Page 55: ... stretch sling and protection pipe or bind fiber optic cables using one sling as shown in Figure 6 8 Figure 6 8 Incorrect binding method 3 Installation engineer B rotates the fiber spools at the speed of 5 m 16 4 ft to 15 m 49 21 ft per minute to coil the fiber optic cables RRU3942 RRU3642 Installation Guide 6 Hoisting an RRU and Related Cables onto a Tower Issue 07 2013 12 30 Huawei Proprietary a...

Page 56: ...onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken Context Cabling requirements for power cables are met For details see 8 1 Cabling Requirements The procedure for adding a connector to the RRU power cable on the RRU side is done under the tower Procedure Step 1 Hoist the power cables onto the tower as shown in Figure 6 9...

Page 57: ...xample The actual connector may vary according to the situation Figure 6 10 Binding cable ties 3 Installation engineer B wraps the power cable connector with a layer of PVC insulation tape as shown in Figure 6 11 NOTE Wrap the PVC insulation tape from 30 mm 1 18 in away from one end of the connector until it reaches the other end of the connector The total length of the wrapped connector is 100 mm...

Page 58: ...ith the tower Step 2 Secure the power cables to the tower vertically using cable clips Step 3 Remove the cable ties PVC insulation tape and lifting sling NOTE The procedure for hoisting the power cables onto the tower is for your reference only End RRU3942 RRU3642 Installation Guide 6 Hoisting an RRU and Related Cables onto a Tower Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright ...

Page 59: ... steel is installed in standard mode by default 7 4 Installing the RRU on Angle Steel This section describes the procedure and precautions for installing the RRU on angle steel Angle steel can be installed either on the ground or a tower and only one RRU can be installed on a piece of angle steel An RRU on angle steel is installed in standard mode by default 7 5 Installing the RRU on a Wall This s...

Page 60: ...s the bracket assembly for an RRU Figure 7 2 Common RRU mounting kit 1 Plastic cap 2 Standard M10 nut 3 Spring washer 4 Thick flat washer 5 M10x150 bolt 6 Auxiliary bracket 7 Hoist clamp on the main bracket 8 Main bracket 7 2 Installing the RRU on a Pole One or more RRUs can be installed on a pole RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Co...

Page 61: ...uring the installation Procedure Step 1 Determine a position for installing the mounting bracket l If the RRU must be installed on a pole secured on a tower see 3 5 1 Clearance for a Single RRU to determine a position l If the RRU must be installed on a pole secured on the ground see Figure 7 3 to determine a position Figure 7 3 Distance between the mounting bracket and the ground NOTE It is recom...

Page 62: ...ch to tighten the two M10 nuts to 40 N m 354 03 lbf in so that the main and auxiliary brackets are tightly secured onto the pole as shown in Figure 7 6 NOTICE Tighten the nuts on the two bolts alternatively After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides RRU3942 RRU3642 Instal...

Page 63: ...hown in Figure 7 7 Figure 7 7 Interchanging the attachment plate at the rear of the RRU with the cover plate on one side of the RRU 1 Use an inner hexagon screwdriver to remove the attachment plate from the rear of the RRU 2 Remove the cover plate from one side of the RRU and use a Phillips screwdriver to remove the plastic screws from the RRU RRU3942 RRU3642 Installation Guide 7 Installing the RR...

Page 64: ...stallation Figure 7 8 Installing the RRU onto the main bracket End 7 2 2 Installing Two RRUs This section describes the procedure and precautions for installing two RRUs on a pole On a pole two RRUs can be installed next to each other at the same level on a pole or vertically at different levels Prerequisites The hoist clamp on the main bracket is secured properly NOTICE l Do not stand the RRU upr...

Page 65: ...hment plate from the rear of the RRU b Remove the cover plate from one side of the RRU and use a Phillips screwdriver to remove the plastic screws from the RRU c Install the plastic screws to the rear of the RRU and use a torque screwdriver to tighten the screws to 0 25 N m 2 21 lbf in d Install the cover plate onto the rear of the RRU e Install the attachment plate to the side of the RRU and use ...

Page 66: ...rst main bracket as shown in Figure 7 11 Figure 7 11 Installing the second main bracket 5 Install the second RRU on the second main bracket as shown in Figure 7 12 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 57 ...

Page 67: ...13 Installing the first RRU onto the main bracket 2 Install the second set of RRU mounting brackets above or below the first set of RRU mounting brackets and maintain a space equal to or greater than the height of an RRU between the two sets of brackets as shown in Figure 7 14 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright ...

Page 68: ... the second RRU as shown in Figure 7 15 Figure 7 15 Interchanging the cover plate on the front of the second RRU with the attachment plate at the rear of the second RRU a Use an inner hexagon screwdriver to remove the attachment plate from the rear of the RRU RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologie...

Page 69: ...16 NOTE When you install two RRUs vertically at different levels and in different directions on a pole ensure that the cabling cavities of these two RRUs face the same direction Figure 7 16 Installing the second RRU onto the main bracket 1 RRU installed in standard mode 2 RRU installed in reverse mode 3 Cabling cavity End 7 2 3 Installing Three or More RRUs The section describes the procedure and ...

Page 70: ... is the procedure of installing four RRUs on a pole Procedure Step 1 Install the two RRUs as shown in Figure 7 17 For the installation procedure see Installing two RRUs next to each other at the same level in 7 2 2 Installing Two RRUs Figure 7 17 Two RRUs installed on a pole Step 2 Interchange the attachment plate and stainless steel screws at the rear of the RRU with the cover plate and plastic s...

Page 71: ...e screws to 0 25 N m 2 21 lbf in d Install the cover plate onto the rear of the RRU e Install the attachment plate to the side of the RRU and use a torque screwdriver to tighten the stainless steel screws on the attachment plate to 5 N m 44 25 lbf in Step 3 Install the third main bracket and install the third RRU on the third main bracket as shown in Figure 7 19 NOTICE When installing the third ma...

Page 72: ...ual to or greater than the height of an RRU between the two sets of brackets as shown in Figure 7 20 Figure 7 20 Installing the second set of RRU mounting brackets Step 5 Install the fourth RRU onto the fourth main bracket as shown in Figure 7 21 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 63 ...

Page 73: ...erequisites Before you install an RRU on a tower the RRU and mounting brackets are hoisted onto the tower For details see 6 1 Hoisting an RRU onto a Tower The hoist clamp on the main bracket is secured properly NOTICE l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU l Place a foam pad or cardboard under the RRU to protect the RRU housing from damage during t...

Page 74: ...re Step 1 Determine a position for installing the mounting bracket l If the RRU must be installed on U steel secured on a tower see 3 5 1 Clearance for a Single RRU to determine a position l If the RRU must be installed on U steel secured on the ground see Figure 7 23 to determine a position RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confiden...

Page 75: ... out of the trough on the auxiliary bracket as shown in Figure 7 24 Figure 7 24 Moving the bolt out of the trough Step 3 Slide the main and auxiliary brackets onto the U steel and fit a bolt into the trough as shown in Figure 7 25 Figure 7 25 Sliding the main and auxiliary brackets onto the U steel RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and C...

Page 76: ... bolts alternatively After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides Figure 7 26 Securing the main and auxiliary brackets onto the U steel 1 Plastic cap Step 5 Install the RRU onto the main bracket as shown in Figure 7 27 RRU3942 RRU3642 Installation Guide 7 Installing the RRU...

Page 77: ...RRU on a tower the RRU and mounting brackets are hoisted onto the tower For details see 6 1 Hoisting an RRU onto a Tower The hoist clamp on the main bracket is secured properly NOTICE l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU l Place a foam pad or cardboard under the RRU to protect the RRU housing from damage during the installation Context Figure 7 2...

Page 78: ... see Figure 7 29 to determine a position Figure 7 29 Distance between the mounting bracket and the ground NOTE It is recommended that the mounting bracket be 1 200 mm 47 24 in to 1 600 mm 62 99 in above the ground Step 2 Loosen the two M10 nuts on the mounting brackets and move the M10x150 bolt out of the trough on the auxiliary bracket as shown in Figure 7 30 RRU3942 RRU3642 Installation Guide 7 ...

Page 79: ...wrench to tighten the two M10 nuts to 40 N m 354 03 lbf in so that the main and auxiliary brackets are tightly secured onto the angle steel as shown in Figure 7 32 NOTICE Tighten the nuts on the two bolts alternatively After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides RRU3942 RR...

Page 80: ...c cap Step 5 Install the RRU onto the main bracket as shown in Figure 7 33 Figure 7 33 Installing the RRU onto the main bracket End RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 71 ...

Page 81: ...e following requirements l For each RRU the wall must be able to bear a weight four times the RRU s weight and the bolts pulling force of 1 25 kN 281 25 lbf vertical to the wall l Expansion bolts must be tightened to 15 N m 132 76 lbf in so that the bolts stay secured without damaging the wall Procedure Step 1 Remove the plastic cap M10 nut spring washer thick flat washer auxiliary bracket and M10...

Page 82: ...xpansion bolt assemblies Drill holes at the anchor points and then install expansion bolt assemblies as shown in Figure 7 36 Figure 7 35 Expansion bolt assembly 1 M8x85 bolt 2 Spring washer 8 3 Plastic tube 4 Flat washer 8 5 Expansion tube RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 73 ...

Page 83: ...e hole 4 Partially tighten the expansion bolts clockwise 5 Rotate the bolts counterclockwise to loosen them and remove each M8x85 bolt spring washer plastic tube and flat washer in sequence NOTE After removing the expansion bolts dispose of the plastic tubes Step 4 Use the removed flat washers spring washers and two M8x85 expansion bolts to secure the main bracket onto the holes Then use an M8 tor...

Page 84: ...t washer Step 5 Install the RRU onto the main bracket as shown in Figure 7 38 Figure 7 38 Installing the RRU onto the main bracket End RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 75 ...

Page 85: ...he RRU the IFS06 supports a maximum of six RRUs NOTE For details about the operating temperature of the RRU see section Technical Specifications of RRUs in 3900 Series Base Station Technical Description l Install RRUs in the sequence from bottom to top and from left to right l This section describes how to install an RRU in height unrestricted scenarios The procedure for installing an RRU in heigh...

Page 86: ... the main bracket as shown in Figure 7 39 Figure 7 39 Installing the main bracket in height restricted scenarios 1 Spring washer 2 Rubber washer l Height unrestricted scenarios Install the main bracket as shown in Figure 7 40 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 77 ...

Page 87: ...9 Figure 7 41 Interchanging the attachment plate at the rear of the RRU with the cover plate on one side of the RRU a Use an inner hexagon screwdriver to remove the attachment plate from the rear of the RRU b Remove the cover plate from one side of the RRU and use a Phillips screwdriver to remove the plastic screws from the RRU RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 ...

Page 88: ...o tighten the stainless steel screws on the attachment plate to 5 N m 44 25 lbf in Step 4 Install the RRU onto the main bracket as shown in Figure 7 42 Figure 7 42 Installing the RRU onto the main bracket Step 5 Repeat the steps above to install RRUs on the lower level from left to right as shown in Figure 7 43 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Prop...

Page 89: ...emperature of the RRU and at least 10 C 50 F lower than the highest operating temperature of the RRU repeat the preceding steps to install the RRUs on the higher level as shown in Figure 7 44 RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 80 ...

Page 90: ...igure 7 44 Installing RRUs on the higher level End RRU3942 RRU3642 Installation Guide 7 Installing the RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 81 ...

Page 91: ...ling an RRU RF jumper 8 7 Installing an Inter RRU RF Cable This section describes the procedure for installing an inter RRU RF cable 8 8 Installing an RRU AISG Multi Wire Cable and AISG Extension Cable This section describes the procedures for installing an RRU AISG multi wire cable and AISG extension cable 8 9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure f...

Page 92: ...the Cover Plate of an RRU Cabling Cavity This section describes the procedure for closing the cover plate of an RRU cabling cavity RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 83 ...

Page 93: ...ameter of the cable Requirements for Cable Binding l The same types of cable must be bound together l Different types of cable must be separately routed with the minimum spacing of 30 mm 1 18 in and cannot be entangled l The cables must be bound tightly and neatly The sheaths of the cables must not be damaged l Cable ties are installed in the same direction and those at the same horizontal line mu...

Page 94: ...se The cable trough must be sealed and routed through the cable hole at the cabinet bottom l When routing RRU cables ensure that the highest positions of the routes of all RRU cables except RF cables and AISG cables must be lower than the bottom of the RRU l Cables are secured with cable clips l Cables are routed neatly along the specified cabling direction and secured with cable clips l The posit...

Page 95: ...es on the cable tray Secure cables on the tower as shown in Figure 8 2 RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 86 ...

Page 96: ...ing joints to lengthen the cables l Cables must be routed by only qualified and trained personnel before all preparations are made l Cables are routed in an untangled and orderly fashion l If DC power cables need to be routed on the tower platform lay out the cables on the guardrail with the shortest distance and route the cables along the guardrail RRU3942 RRU3642 Installation Guide 8 Installing ...

Page 97: ...parts in the housing of the equipment must be reliably connected to the ground terminal Cabling Requirements for E1 Cables l E1 cables must not cross power cables PGND cables or RF cables when routed If transmission cables are routed with power cables PGND cables or RF cables in parallel the spacing between them must be greater than 30 mm 1 18 in l E1 cables are routed straightly and bound neatly ...

Page 98: ...nt Ensure that the fiber optic cables can flexibly move in the cable ties Do not bend the fiber optic cables sharply The following figure shows how to bind the fiber optic cables correctly Figure 8 4 Binding fiber optic cables l When coiling fiber optic cables apply even strength Do not bend the cables with force l Vacant optical connectors must be covered with dustproof caps l Fiber optic cables ...

Page 99: ...are too long coil the excess of the cables and secure them on the tower 8 2 Cable Connections This section describes the cable connections for a single RRU and multiple RRUs NOTE l A lower level RRU obtains power directly from the external power system but not from an upper level RRU using a power cable l The RRU3642 is a single mode RRU It only supports the cable connections shown in Figure 8 8 a...

Page 100: ...ble 4 RRU AISG extension cable 5 RRU power cable 6 CPRI fiber optic cable 7 RRU alarm cable Figure 8 9 shows the cable connections for a single RRU in the multimode scenario RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 91 ...

Page 101: ... 4 RRU AISG extension cable 5 RRU power cable 6 CPRI fiber optic cable 7 RRU alarm cable Figure 8 10 shows the cable connections for multiple RRUs in the single mode scenario RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 92 ...

Page 102: ... CPRI fiber optic cable connections for multiple RRUs in the multimode scenario Figure 8 11 CPRI fiber optic cable connections for multiple RRUs in the multimode scenario Figure 8 12 shows inter RRU cable connections RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 93 ...

Page 103: ...X RXA port on the RRU3804 or RRU3801E must be connected to the same antenna l When an RRU3942 is interconnected with an RRU3804 or RRU3801E the ANT_RXC port on the RRU3942 and the ANT_RXB port on the RRU3804 or RRU3801E do not need to be connected to an antenna 8 3 Installation Process This section describes the process of installing RRU cables Figure 8 13 shows the process of installing RRU cable...

Page 104: ... 8 4 RRU Cable List This section describes RRU cable connections Table 8 1 lists RRU cables RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 95 ...

Page 105: ...on the RRU CPRI1 port on the RRU DLC connector CPRI port on a board in the BBU CPRI Fiber Optic Cable RRU3942 RRU3642 working in single mode scenarios DLC connector CPRI0 port on the RRU DLC connector CPRI port on a board in the BBU RRU RF Jumper DIN male connector ANT_TX RXA ANT_TX RXB ANT_RXC or ANT_RXD port on the RRU DIN male connector Antenna system Inter RRU RF Cable RRU3942 DB2W2 connector ...

Page 106: ...d an M8 terminal at the other end Procedure Step 1 According to the actual cable route cut the PGND cable into a proper length to prepare an RRU PGND cable Then add an OT terminal at each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable Step 2 Install the RRU PGND cable Connect the M6 OT terminal at one end of the PGND cable to the ground terminal at...

Page 107: ...U RF Jumper This section describes the procedure for installing an RRU RF jumper Procedure Step 1 Connect the DIN male connector at one end of the RRU RF jumper to the ANT port on the RRU and use a torque wrench to tighten the connector to 25 N m 221 27 lbf in as shown in Figure 8 16 RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential ...

Page 108: ...must be installed between RRU RF jumpers and the leaky cables to protect the RRUs against damage Step 2 Link the other end of the RF jumper to the external antenna system Step 3 Waterproof the connectors of the RF jumper by referring to Figure 8 17 RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd...

Page 109: ...osition 50 mm 1 97 in away below the bottom of the connector to the top of the connector first from bottom up then from top down and finally from bottom up Cut off the redundant tape after three layers are wrapped Wrap each layer of tape around the connector tightly 2 Wrap three layers of PVC insulation tape Start the wrapping at a position 30 mm 1 18 in away below the bottom of the waterproof tap...

Page 110: ...e layers of waterproof tape from bottom up then from top down and finally from bottom up Do not cut the tape until all the three layers of the tape are already wrapped Cut off the redundant tape after three layers are wrapped Wrap each layer of tape around the connector tightly 3 Wrap three layers of PVC insulation tape Wrap each connector with three layers of waterproof tape from bottom up then f...

Page 111: ... port of an RRU and connect the other end to the RX_IN OUT port of the other RRU as shown in Figure 8 19 Figure 8 19 Installing an inter RRU RF cable Step 3 Use an M3 Phillips screwdriver to tighten the posts on both sides of the DB2W2 connector to 0 4 N m 3 54 lbf in Step 4 Route the cables according to the instructions in 8 1 Cabling Requirements and then use cable ties to bind the cables Step 5...

Page 112: ... cap 2 Link the waterproofed DB9 connector at one end the AISG multi wire cable to the RET port on the RRU bottom as shown in Figure 8 20 Figure 8 20 Installing an RRU AISG multi wire cable 3 Use an M3 Phillips screwdriver to tighten the posts on both sides of the waterproof DB9 connector to 0 4 N m 3 54 lbf in 4 Connect the other end of the cable to the standard AISG male connector on the RCU 5 R...

Page 113: ...shown in Figure 8 21 Figure 8 21 Installing an RRU AISG multi wire cable 3 Use an M3 Phillips screwdriver to tighten the posts on both sides of the waterproof DB9 connector to 0 4 N m 3 54 lbf in 4 Connect the other end of the AISG extension cable to the standard AISG male connector on the RCU as shown in Figure 8 22 Figure 8 22 Installing an RRU AISG extension cable RRU3942 RRU3642 Installation G...

Page 114: ... proper ESD protection measures for example wear ESD gloves to prevent electrostatic damage to the boards modules or electronic components Step 2 Loosen the protection screw on the cover plate of the RRU cabling cavity using an M4 Phillips screwdriver and then lower the handle to open the cover plate as shown in Figure 8 23 Figure 8 23 Opening the cover plate of the RRU cabling cavity 1 Protection...

Page 115: ... 6 Waterproof block 7 Clip 8 Cabling cavity Step 3 Loosen the screws on the clip using an M4 Phillips screwdriver and open the clip as shown Figure 8 25 NOTE Open the clip only for the associated cable Figure 8 25 Opening clips RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 106 ...

Page 116: ... this power device is 15 A to 30 A There are three types of RRU power cables in terms of cross sectional areas 5 3 mm2 0 008 in 2 10 AWG and 8 2 mm2 0 013 in 2 8 AWG complying with North American standards and 6 mm2 0 009 in 2 complying with European standards Table 8 2 describes the RRU power cable Table 8 2 RRU power cable Cable On the RRU Side On the Power Device Side Pow er Devi ce Color RRU p...

Page 117: ...power cable to the corresponding position on the power device NOTE l A DCDU 11B DCDU 12B can supply power to a maximum of six RRUs Ensure that the RRU power cable is connected to one of LOAD0 to LOAD5 ports on the DCDU 11B DCDU 12B l One EPU can supply power to a maximum of six RRUs Ensure that the RRU power cable is connected to one of RRU0 to RRU5 ports on the EPU l When the RRU power cable is c...

Page 118: ...on an optical module Blue indicates a single mode optical module and black or gray indicates a multi mode optical module NOTICE The optical modules to be installed must match CPRI rates Context l A CPRI fiber optic cable transmits CPRI signals between a BBU and an RRU l For details about CPRI fiber optic cable connections see section CPRI Cable Connections in the BBU3900 Hardware Description or DB...

Page 119: ...ion process For details about the installation process see 8 3 Installation Process l If only one fiber optic cable is required secure the fiber optic cable into the cable clip near the power cable to leave some slack at the bend Step 3 Connect the end labeled 2A and 2B of the fiber optic cable to the optical module on the BBU side Step 4 Route the cables according to the instructions in 8 1 Cabli...

Page 120: ...external alarm devices Step 3 Route the cables according to the instructions in 8 1 Cabling Requirements and then use cable ties to bind the cables Step 4 Label the installed cables according to the instructions in Attaching an L Shaped Label End 8 13 Closing the Cover Plate of an RRU Cabling Cavity This section describes the procedure for closing the cover plate of an RRU cabling cavity RRU3942 R...

Page 121: ...he power cable is properly tightened using the clip Figure 8 30 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity as shown in Figure 8 31 NOTICE Ensure that cables and waterproof blocks are properly inserted into troughs RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Tec...

Page 122: ...over plate to 0 8 N m 7 08 lbf in in the sequence shown in Figure 8 32 Figure 8 32 Closing the cover plate of an RRU cabling cavity 1 Protection screw Step 4 Take off the ESD gloves and pack up all the tools End RRU3942 RRU3642 Installation Guide 8 Installing RRU Cables Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 113 ...

Page 123: ... and the caps are tightened 5 There are no connectors or joints on each power cable or PGND cable 6 The terminals at two ends of each power cable or PGND cable are securely soldered or crimped 7 None of power cables and PGND cables can be short circuited or reversely connected In addition these cables are not damaged or broken 8 Power cables and PGND cables are separately bound from other cables 9...

Page 124: ...restore power to the RRU within 24 hours Figure 10 1 shows the RRU power on check process NOTE For details about how to power on an RRU see Powering On an RRU For details about how to power off an RRU see section Powering Off the RRU in RRU Maintenance Guide RRU3942 RRU3642 Installation Guide 10 Powering On an RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologie...

Page 125: ...e external power supply should range from 36 V DC to 57 V DC b The RUN indicator on the RRU is on for 1s and off for 1s The ALM indicator is steady off RRU3942 RRU3642 Installation Guide 10 Powering On an RRU Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 116 ...

Page 126: ...Less Female Connector Pressfit Type to the RRU Power Cable on the RRU Side This section describes the procedure for adding a tool less female connector pressfit type to the RRU power cable on the RRU side RRU3942 RRU3642 Installation Guide 11 Appendix Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 117 ...

Page 127: ... Figure 11 1 shows the cable diagram on labels Figure 11 1 Cable diagram on labels 1 Cable diagram on labels Procedure Step 1 Determine the length of the power cable for different operations based on the labels as shown in Figure 11 2 Figure 11 2 Determining the length of the power cable RRU3942 RRU3642 Installation Guide 11 Appendix Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyrigh...

Page 128: ...of the notch in the tool less female connector pressfit type as shown in Figure 11 4 Figure 11 4 Stripping the sheath off each core wire Figure 11 5 Matched length Step 4 Add a tool less female connector pressfit type to two core wires 1 Tighten the screws using a Phillips screwdriver as shown in Figure 11 6 RRU3942 RRU3642 Installation Guide 11 Appendix Issue 07 2013 12 30 Huawei Proprietary and ...

Page 129: ...crews using a Phillips screwdriver as shown in Figure 11 7 Figure 11 7 Adding a tool less female connector pressfit type to two core wires Step 5 Strip the specified length of the sheath off the power cable to expose the intact shield layer as shown in Figure 11 8 RRU3942 RRU3642 Installation Guide 11 Appendix Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co...

Page 130: ...s female connector pressfit type for 1 5 mm 0 059 in as shown in Figure 11 9 Figure 11 9 Inserting core wires into the tool less female connector pressfit type End RRU3942 RRU3642 Installation Guide 11 Appendix Issue 07 2013 12 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 121 ...

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