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7.2 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.

Context

Cabling requirements for power cables are met. For details, see 

9.1 Cabling Requirements

.

Procedure

Step 1

Hoist the fiber optic cables onto the tower, as shown in 

Figure 7-6

.

Figure 7-6

 Hoisting fiber optic cables onto the tower

(1) Lifting sling

(2) Fixed pulley

(3) Traction sling

NOTICE

Before hoisting fiber optic cables 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 the fiber
spools, and installation engineer D lead the lifting sling through the stretch sling of the fiber

RRU3262
Installation Guide

7 Hoisting an RRU and Related Cables onto a Tower

Issue 01 (2014-11-20)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

45

Summary of Contents for RRU3262

Page 1: ...RRU3262 Installation Guide Issue 01 Date 2014 11 20 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: ... 1 Changes in RRU3262 Installation Guide This section describes the changes in the RRU3262 Installation Guide 2 Installation Preparations This chapter describes the reference documents tools and instruments that must be ready before the installation In addition it specifies the skills and prerequisites that installation engineers must have 3 Information About the Installation Before installing an ...

Page 4: ...tions 9 Installing RRU Cables This chapter describes the procedure for installing RRU cables 10 Checking the RRU Hardware Installation After an RRU is installed check the hardware installation 11 Powering On an RRU After all the devices are installed check the power on status of an RRU 12 Appendix This section describes the procedure for adding an easy power receptacle pressfit type connector Conv...

Page 5: ... in as user root Italic Book titles are in italics Courier New Examples of information displayed on the screen are in Courier New Command Conventions The command conventions that may be found in this document are defined as follows Convention Description Boldface The keywords of a command line are in boldface Italic Command arguments are in italics Items keywords or arguments in brackets are optio...

Page 6: ...y For example press Enter and press Tab Key 1 Key 2 Press the keys concurrently For example pressing Ctrl Alt A means the three keys should be pressed concurrently Key 1 Key 2 Press the keys in turn For example pressing Alt A means the two keys should be pressed in turn Mouse Operations The mouse operations that may be found in this document are defined as follows Action Description Click Select a...

Page 7: ...lation Spacing Between RRUs 31 4 Unpacking the Equipment 34 5 Installation Process 36 6 Optional Installing the Plastic Shells of the RRU 37 7 Hoisting an RRU and Related Cables onto a Tower 40 7 1 Hoisting an RRU onto a Tower 41 7 2 Hoisting Fiber Optic Cables onto a Tower 45 7 3 Hoisting Power Cables onto a Tower 47 8 Installing the RRU 50 8 1 Mounting Kits for an RRU 51 8 2 Installing the RRU o...

Page 8: ...xtension Cable 103 9 8 Installing an RRU Alarm Cable 105 9 9 Opening the Cover Plate of an RRU Cabling Cavity 107 9 10 Installing a CPRI Optical Cable 108 9 11 Installing an RRU Power Cable 110 9 12 Closing the Cover Plate of an RRU Cabling Cavity 112 10 Checking the RRU Hardware Installation 115 11 Powering On an RRU 116 12 Appendix 118 12 1 Adding a Tool Less Female Connector Pressfit Type to th...

Page 9: ... Change Description 9 11 Installing an RRU Power Cable Modified the precautions in the background information 12 1 Adding a Tool Less Female Connector Pressfit Type to the RRU Power Cable on the RRU Side Added the precaution that do not reversely connect the positive and negative poles in the procedure Compared with Draft B 2014 10 24 this issue does not include any new information and no informat...

Page 10: ...tween the mounting kit and the ground Compared with Draft A 2014 09 30 this issue does not include any new information and no information is deleted from this issue Draft A 2014 05 30 This is a draft RRU3262 Installation Guide 1 Changes in RRU3262 Installation Guide Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 ...

Page 11: ...t be 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 RRU3262 Installation Guide 2 Installation ...

Page 12: ...ide l OCB 01M User Guide 2 2 Tools and Instruments You must prepare the following tools and instruments before the installation Hammer drill a 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 RRU3262 Installation Guide 2 Installation Preparations Issue 01 2014 11 20 Huawei Proprietary and Confidential...

Page 13: ...and 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 RRU3262 Installation Guide 2 Installation Preparations Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 5 ...

Page 14: ... the 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 RRU3262 Installation Guide 2 Installation Preparations Issue 01 2014 11 20 Huawei Proprieta...

Page 15: ...cribes six indicators on an RRU They indicate the running status of the RRU 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 ...

Page 16: ...Figure 3 2 shows RRU dimensions Figure 3 2 RRU dimensions 3 2 RRU Ports This section describes ports on the RRU panels An RRU has a bottom panel cabling cavity panel and indicator panel RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 8 ...

Page 17: ... Remarks 1 Ports in the cabling cavity RTN Power supply socket NEG CPRI0 Optical electrical port 0 connected to the BBU CPRI1 Optical electrical port 1 connected to the BBU 2 Bottom ports ANT_TX RXA TX RX port A supporting RET signal transmission RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co ...

Page 18: ...rt to the BBU by default in the single mode scenario 3 3 RRU Indicators This section describes six indicators on an RRU They indicate the running status of the RRU For detailed positions of RRU indicators see 3 2 RRU Ports Table 3 2 describes RRU indicators Table 3 2 RRU Indicators Indicator Color Status Meaning RUN Green Steady on The power input is available but the board is faulty Steady off No...

Page 19: ...n 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 Red and green Steady green The CPRI link is running properly Steady red An optical module fails to receive or transmit signals possibly because the optical module is faulty or the optical fiber is broken Bl...

Page 20: ...lled in an enclosed cabinet without a cooling system l The RRU cannot be installed in an enclosed camouflage box l The RRU cannot be installed in an enclosed equipment room without a cooling system l When multiple RRUs are installed in centralized mode the minimum clearance requirements must be met For details about the minimum clearance requirements see 3 5 2 Clearance for Three or More RRUs and ...

Page 21: ...ion mode one side instead of the rear of an RRU is mounted on the support is recommended for RRUs on the main pole secured on a tower This installation mode allows multiple RRUs to be installed next to each other at the same level on a pole When the horizontal distance between the main and auxiliary poles on a tower is equal to or greater than 810 mm 23 62 in the side mounted mode is recommended f...

Page 22: ... 36 in to 76 mm 2 99 in a maximum of three RRUs can be installed on the pole and the side mounted installation is recommended 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 pole wall is 3 5 mm 0 14 in or above Figure 3 7 shows a single RRU installed on a pole RRU3262 Installation Guide 3 Information About th...

Page 23: ...a pole Figure 3 8 Two RRUs installed on a pole Figure 3 9 Figure 3 10 and Figure 3 11 show multiple RRUs installed on a pole RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 15 ...

Page 24: ... installed on a pole Figure 3 10 Four RRUs installed on a pole RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 16 ...

Page 25: ...e 3 12 U steel specifications NOTICE U steel only supports the standard or reverse installation of a single RRU Figure 3 13 shows an RRU installed on U steel RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 17 ...

Page 26: ...14 Angle steel specifications NOTICE Angle steel only supports the standard or reverse installation of a single RRU Figure 3 15 shows an RRU installed on angle steel RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 18 ...

Page 27: ...o ensure that the bolts work properly and the wall remains intact NOTICE l The standard installation is recommended for RRUs installed on a wall l When RRUs are installed on a wall in side mounted mode do not combine mounting brackets for multiple RRUs as shown in Figure 3 16 Figure 3 16 Correct installation of mounting brackets for multiple RRUs installed on a wall in side mounted mode RRU3262 In...

Page 28: ...rts a maximum of six RRUs when the ambient temperature is higher than or equal to the lowest operating temperature of the RRUs and at least 10 C 50 F lower than the highest operating temperature of the RRUs NOTE For details about the operating temperature of the RRUs see section Technical Specifications of RRUs in 3900 Series Base Station Technical Description NOTICE The mounting brackets for mult...

Page 29: ...ts for RRUs installed on an IFS06 Figure 3 19 and Figure 3 20 show RRUs installed on an IFS06 RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 21 ...

Page 30: ...d on an IFS06 1 Height restricted scenario 2 Height unrestricted scenario RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 22 ...

Page 31: ...r the 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 clearances for a single RRU RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 23 ...

Page 32: ...e recommended clearances after installing the equipment l The minimum clearance ensures normal running and heat dissipation but O M activities such as checking indicator status and opening the cabling cavity cannot be properly conducted If the installation space is restricted leave the minimum clearance after installing the equipment Clearance for a Single RRU in Side Mounted Mode Figure 3 21 show...

Page 33: ... Single RRU in Standard or Reverse Mode Figure 3 22 shows the clearance for a single RRU in standard or reverse mode RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 25 ...

Page 34: ...ted RRU Figure 3 23 and Figure 3 24 show the minimum clearances for a single RRU in side mounted mode and standard or reverse mode on a tower RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 26 ...

Page 35: ...RU in standard or reverse mode on a tower 3 5 2 Clearance for Three or More RRUs This section describes the recommended and minimum clearances for three or more RRUs RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 27 ...

Page 36: ...cking indicator status and opening the cabling cavity cannot be properly conducted If the installation space is restricted leave the minimum clearance after installing the equipment Recommended Clearances for Three or More RRUs Installed in Centralized Mode Figure 3 25 shows the recommended clearances for three or more RRUs installed in centralized mode Figure 3 25 Recommended clearances for three...

Page 37: ...Wall Figure 3 27 shows the recommended clearances for three or more RRUs installed in standard mode on a wall Figure 3 27 Recommended clearances for three or more RRUs installed in standard mode on a wall RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 29 ...

Page 38: ...or three or more RRUs installed in standard mode on a wall Recommended Clearances for Three or More RRUs Installed in Side Mounted Mode on a Wall Figure 3 29 shows the recommended clearances for three or more RRUs installed in side mounted mode on a wall RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technolo...

Page 39: ...nded Horizontal Spacing Between RRUs Figure 3 30 shows the recommended horizontal spacing between RRUs Figure 3 30 Recommended horizontal spacing between RRUs Minimum Horizontal Spacing Between RRUs Figure 3 31 shows the minimum horizontal spacing between RRUs RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Te...

Page 40: ...al spacing between RRUs Figure 3 32 Recommended vertical spacing between RRUs Minimum Vertical Spacing Between RRUs Figure 3 33 shows the minimum vertical spacing between RRUs RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 32 ...

Page 41: ...re 3 33 Minimum vertical spacing between RRUs RRU3262 Installation Guide 3 Information About the Installation Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 33 ...

Page 42: ...oves 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 ...

Page 43: ...Huawei 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 dam...

Page 44: ... checking the RRU hardware installation and powering on an RRU Figure 5 1 shows the installation process Figure 5 1 Process of installing an RRU RRU3262 Installation Guide 5 Installation Process Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 36 ...

Page 45: ...only when necessary Procedure Step 1 Use an M6 Phillips screwdriver to loosen the two screws on the metal sheet of the RRU and remove the metal sheet as shown in Figure 6 1 Figure 6 1 Removing the metal sheet RRU3262 Installation Guide 6 Optional Installing the Plastic Shells of the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 37 ...

Page 46: ...gure 6 2 Installing buckles at the bottom 1 Buckle 2 Screw Step 3 Use four hex screws to secure the plastic shells onto the RRU and use an M6 hex key wrench to tighten the screws to 2 8 N m 24 78 lbf in as shown in Figure 6 3 RRU3262 Installation Guide 6 Optional Installing the Plastic Shells of the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 38...

Page 47: ...talling the plastic shells of the RRU End RRU3262 Installation Guide 6 Optional Installing the Plastic Shells of the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 39 ...

Page 48: ...enarios the RRU can be installed on a pole U steel or angle steel 7 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 7 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 RRU3262 Instal...

Page 49: ...f the RRU l Place a foam pad or cardboard under the RRU to protect the RRU housing 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...

Page 50: ...alling a Single RRU Step 5 Technician C binds the RRU using the lifting sling and traction sling as shown in Figure 7 2 The binding methods in Figure 7 3 and Figure 7 4 are incorrect Figure 7 2 Binding the RRU 1 Handle 2 Lifting sling 3 Traction eye 4 Traction sling RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Issue 01 2014 11 20 Huawei Proprietary and Confidential ...

Page 51: ...gure 7 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 RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 43 ...

Page 52: ...chnician 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 8 2 1 Installing a Single RRU Step 9 Untie the lifting sling and traction sling NOTE The proced...

Page 53: ...cables 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...

Page 54: ... the stretch sling and protection pipe or bind fiber optic cables using one sling as shown in Figure 7 8 Figure 7 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 RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Issue 01 2014 11 20 Huawei Proprietary and C...

Page 55: ...les 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 9 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...

Page 56: ...an example The actual connector may vary according to the situation Figure 7 10 Binding cable ties 3 Installation engineer B wraps the power cable connector with a layer of PVC insulation tape as shown in Figure 7 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 10...

Page 57: ...ng with 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 RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huaw...

Page 58: ...ch piece of U steel allows only one RRU to be installed in standard or reverse mode 8 4 Installing an RRU on Angle Steel This section describes the procedure and precautions for installing an RRU on angle steel An RRU can be installed on angle steel secured on the ground or a tower Each piece of angle steel allows only one RRU to be installed in standard or reverse mode 8 5 Installing an RRU on a ...

Page 59: ...e view of an RRU 1 Front view 2 Side view 3 Attachment plate Figure 8 2 shows the bracket assembly for an RRU Figure 8 2 12 L blade RRU mounting kit 1 Plastic cap 2 Standard M10 nut 3 Spring washer 4 Thick flat washer 5 Square neck bolt RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 51 ...

Page 60: ...acket is secured properly NOTICE l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Procedure Step 1 Determine a position for installing the mounting brackets l If the RRU is installed on a tower determine a position for installing the mounting brackets a...

Page 61: ... RRU mounting brackets NOTE Ensure that the arrows on the mounting brackets are pointing up 1 Adjust the position of the nut and remove the square neck bolt at the open end from the slot on the auxiliary bracket 2 Slide the mounting brackets onto the pole horizontally and insert the square neck bolt into the slot Step 3 Use a 16 mm 0 63 in M10 torque wrench to tighten the nuts to 40 N m 354 03 lbf...

Page 62: ...th sides and ensure that the spacing is the same on the two sides Figure 8 5 Securing the RRU mounting brackets Step 4 Install the RRU onto the main bracket as shown in Figure 8 6 Figure 8 6 Installing the RRU onto the main bracket RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 54 ...

Page 63: ...ecautions for installing two RRUs on a pole Prerequisites The hoist clamp on the main bracket is secured properly NOTICE l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Procedure Step 1 Install the first RRU onto the main bracket as shown in Figure 8 8...

Page 64: ... set of mounting brackets and remove the main bracket as shown in Figure 8 9 Figure 8 9 Removing the RRU main bracket 1 Main bracket 2 Pole installation bracket Step 3 Install the removed main bracket on one side of the first main bracket as shown in Figure 8 10 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co ...

Page 65: ...ting bracket for installing a common RRU in the scenarios of adding RRUs as shown in Figure 8 11 Figure 8 11 Connect to the main mounting bracket for installing a common RRU 1 Main mounting bracket for a blade RRU 2 Main mounting bracket for a common RRU Step 4 Install the second RRU onto the main bracket as shown in Figure 8 12 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 H...

Page 66: ...crew into the holes of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 13 Figure 8 13 Securing the captive screw into the connection hole RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 58 ...

Page 67: ...Then rotate the sheet metal tab to align the vacant hole in the sheet metal tab with a hole on the top of the first RRU 3 Insert the removed screw into the hole on the top of the first RRU and use an M6 torque screwdriver to tighten the screw to 5 N m 44 25 lbf in End 8 2 3 Installing Three or More RRUs This section describes the procedure and precautions for installing three or more RRUs on a pol...

Page 68: ...talling four RRUs on a pole Procedure Step 1 Install two RRUs as shown in Figure 8 15 For detailed installation process see 8 2 2 Installing Two RRUs Figure 8 15 Two RRUs installed on a pole Step 2 Use an M6 inner hexagon screwdriver to loosen the four hex socket screws from the main bracket and pole installation brackets on the second set of mounting brackets and remove the main bracket as shown ...

Page 69: ...iver to tighten the captive screw into the holes on the top of the attachment plate and main bracket for the RRU to 5 N m 44 25 lbf in as shown in Figure 8 17 NOTICE The third main bracket must be installed with the open ends of U shaped slots on both sides facing downwards RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Tech...

Page 70: ...RRUs as shown in Figure 8 18 Figure 8 18 Connect to the main mounting bracket for installing a common RRU 1 Main mounting bracket for a blade RRU 2 Main mounting bracket for a common RRU Step 4 Install the sheet metal tab for fixing the neighboring RRUs as shown in Figure 8 19 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei T...

Page 71: ...hole in the sheet metal tab with a hole on the top of the third RRU 3 Insert the removed screw into the hole on the top of the third RRU and use an M6 torque screwdriver to tighten the screw to 5 N m 44 25 lbf in Step 5 Install the second set of RRU mounting brackets at least 80 mm 3 15 in above or below the first set of RRU mounting brackets as shown in Figure 8 20 Figure 8 20 Installing the seco...

Page 72: ...section describes the procedure and precautions for installing an RRU on U steel An RRU can be installed on U steel secured on the ground or a tower Each piece of U steel allows only one RRU to be installed in standard or reverse mode Prerequisites Before you install an RRU on U steel secured on a tower the RRU and its mounting brackets are hoisted onto the tower For details see 7 1 Hoisting an RR...

Page 73: ...es are supported Figure 8 22 Top view of an RRU 1 U steel Procedure Step 1 Determine a position for installing the mounting brackets l If the RRU is installed on a tower determine a position for installing the mounting brackets according to the instructions in 3 5 1 Clearance for a Single RRU l If the RRU is installed on the ground determine a position for installing the mounting brackets accordin...

Page 74: ...Install the RRU mounting brackets as shown in Figure 8 24 Figure 8 24 Installing the RRU mounting brackets NOTE Ensure that the arrows on the mounting brackets are pointing up 1 Adjust the position of the nut and remove the square neck bolt at the open end from the slot on the auxiliary bracket 2 Slide the mounting brackets onto the U steel horizontally and insert the square neck bolt into the slo...

Page 75: ...tween the brackets on both sides and ensure that the spacing is the same on the two sides Figure 8 25 Securing the RRU mounting brackets Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the RRU reinstall the attachment plate onto the rear of the RRU and tighten the four stainless screws to 5 N m 44 25 lbf in as shown in Figure 8 26 RRU3262 Installation...

Page 76: ...ep 6 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 28 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 68 ...

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

Page 78: ...nd determine a position for installing the mounting brackets according to Figure 8 30 Figure 8 30 Distance between the mounting brackets and the ground NOTE As shown in the figure above it is recommended that the mounting kits be installed at a position 1200 mm 47 24 in to 1600 mm 59 06 in high above the ground If the space is insufficient only the 3 5 Installation Clearance Requirements of an RRU...

Page 79: ...uare neck bolt into the slot Step 3 Use a 16 mm 0 67 in M10 torque wrench to tighten the nuts to 40 N m 354 03 lbf in so that the mounting brackets are secured onto the angle steel as shown in Figure 8 32 NOTICE Tighten the nuts on the two square neck bolts synchronously After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure tha...

Page 80: ... the rear of the RRU and tighten the four stainless screws to 5 N m 44 25 lbf in as shown in Figure 8 33 Figure 8 33 Installing the attachment plate onto the rear of the RRU Step 5 Install the RRU onto the main bracket as shown in Figure 8 34 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 72 ...

Page 81: ...the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 35 Figure 8 35 Securing the captive screw into the connection hole End RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 73 ...

Page 82: ...h RRU the wall must be able to bear a weight four times heavier than 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 30 N m to ensure that the bolts work properly and the wall remains intact Procedure Step 1 Disassemble the RRU mounting brackets as shown in Figure 8 36 Figure 8 36 Disassembling the RRU mounting brackets...

Page 83: ...on bracket is placed horizontally and then mark anchor points with a marker as shown in Figure 8 37 Figure 8 37 Marking anchor points 1 Level 2 Pole installation bracket 3 RRU NOTE As shown in the figure above it is recommended that the pole installation bracket be installed at a position 1200 mm 47 24 in to 1600 mm 59 06 in high above the ground If the space is insufficient only the 3 5 Installat...

Page 84: ...ace one vertically into each hole 3 Use a rubber mallet to pound the expansion anchor bolt until it goes into the hole completely 4 Tighten and then loosen the expansion bolt and remove the M10 bolt spring washer and flat washer in sequence NOTICE After dismantling an expansion anchor bolt ensure that the top of the expansion sleeve is on the same level as the wall Otherwise the device cannot be i...

Page 85: ...cket using four M6x16 inner hexagon screws and use an inner hexagon torque screwdriver to tighten the inner hexagon screws to 5 N m 44 25 lbf in so that the main bracket and pole installation bracket are firmly secured as shown in Figure 8 40 Figure 8 40 Installing the main bracket RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Hua...

Page 86: ...hten the four stainless screws to 5 N m 44 25 lbf in as shown in Figure 8 41 Figure 8 41 Installing the attachment plate onto the rear of the RRU Step 7 Install the RRU onto the main bracket as shown in Figure 8 42 Figure 8 42 Installing the RRU onto the main bracket RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologie...

Page 87: ...p on the main bracket is secured properly NOTICE l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Context l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of RRUs l RRUs can be installed on an IFS06 when the...

Page 88: ... installation bracket you need to use the M10x50 bolts delivered with the IFS06 l Rubber washers are easily compressed or broken whereas do not need to be replaced Procedure Step 1 Disassemble the RRU mounting brackets as shown in Figure 8 44 Figure 8 44 Disassembling the RRU mounting brackets 1 Main bracket 2 Square neck bolt 3 Pole installation bracket 4 Auxiliary bracket 5 Flat washer 6 Spring ...

Page 89: ...igure 8 45 Figure 8 45 Installing the pole installation bracket in height unrestricted scenarios 1 Spring washer 2 Rubber washer Step 3 Attach the main bracket to the pole installation bracket and use an inner hexagon screwdriver to tighten four M6x16 screws to 5 N m 44 25 lbf in so that the main bracket and pole installation bracket are firmly secured as shown in Figure 8 46 RRU3262 Installation ...

Page 90: ...on screwdriver to tighten the captive screw into the holes of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 47 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 82 ...

Page 91: ...main bracket Step 5 Install the RRUs on the lower level from left to right as shown in Figure 8 48 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 83 ...

Page 92: ...rating temperature of the RRU and at least 10 C 10 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 8 49 RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 84 ...

Page 93: ...Figure 8 49 Installing RRUs on the higher level End RRU3262 Installation Guide 8 Installing the RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 85 ...

Page 94: ... jumper 9 7 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 9 8 Installing an RRU Alarm Cable This section describes the procedure for installing an RRU alarm cable 9 9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover...

Page 95: ...ribes the procedure for closing the cover plate of an RRU cabling cavity RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 87 ...

Page 96: ...e diameter 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 lin...

Page 97: ...t base 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 p...

Page 98: ...cables on the cable tray Secure cables on the tower as shown in Figure 9 2 RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 90 ...

Page 99: ...ldering 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 RRU3262 Installation Guide 9 Installing RRU ...

Page 100: ...tal 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 nea...

Page 101: ...ipment 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 9 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 cab...

Page 102: ...he cables to the guardrail or pole with cable clips The device cannot be far away from the position for securing the cables l If the fiber optic cables close to a device are too long coil the excess of the cables and secure them on the tower 9 2 RRU Cable Connections This section describes RRU cable connections NOTE The RRU does not support power cable cascading Figure 9 8 shows the cable connecti...

Page 103: ...wire cable 4 RRU AISG extension cable 5 RRU power cable 6 CPRI optical fiber 7 RRU alarm cable Figure 9 9 shows the cable connections of multiple RRUs RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 95 ...

Page 104: ...ptical fiber 9 3 Installing RRU Cables This chapter describes the procedure for installing RRU cables Figure 9 10 shows the procedure for installing RRU cables RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 96 ...

Page 105: ...The Other End Connector Installation Position Connector Installation Position RRU PGND Cable OT terminal M6 16 mm2 or 0 025 in 2 Ground terminal on the RRU OT terminal M8 16 mm2 or 0 025 in 2 Ground terminal on the ground bar RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 97 ...

Page 106: ...per DIN male connector RF ports on the RRU DIN male connector Antenna system RRU AISG Multi Wire Cable Waterproof DB9 male connector RET port on the RRU Standard AISG female connector Standard AISG male connector on the RCU or on the AISG extension cable RRU AISG Extension Cable Standard AISG male connector Standard AISG female connector on the AISG multi wire cable Standard AISG female connector ...

Page 107: ...ble to the ground terminal at the RRU bottom and the M8 OT terminal at the other end to the external ground bar as shown in Figure 9 11 Figure 9 11 Installing an RRU PGND cable NOTE Crimp OT terminals in correct positions as shown in Figure 9 12 Figure 9 12 Correct position of an OT terminal Step 3 Label the installed cable according to the instructions in Attaching a Cable Tying Label End RRU3262...

Page 108: ...On AC powered electric railways such as high speed railways when leaky cables are connected to RRUs installed in tunnels high voltage resistance DC blocks must be installed between RRU RF jumpers and the leaky cables to protect the RRUs against damage Step 2 Connect the other end of the RF jumper to the external antenna system Step 3 Waterproof the connectors of the RF jumper by referring to Figur...

Page 109: ... a position 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...

Page 110: ...three 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 th...

Page 111: ...e RRU and the RCU In this case an AISG extension cable is used to extend the AISG multi wire cable Procedure l Install an AISG multi wire cable that is not configured with an AISG extension cable 1 Use an M3 flat head screwdriver to loosen the screws on the dustproof cap on the RET port and remove the dustproof cap 2 Link the waterproofed DB9 connector at one end the AISG multi wire cable to the R...

Page 112: ...the screws on the dustproof cap on the RET port and remove the dustproof cap 2 Link the waterproofed DB9 connector at one end of the AISG multi wire cable to the RET port on the RRU bottom and link the other end to the standard AISG male connector of the AISG extension cable as shown in Figure 9 17 Figure 9 17 Installing an RRU AISG multi wire cable 3 Use an M3 Phillips screwdriver to tighten the ...

Page 113: ...able This section describes the procedure for installing an RRU alarm cable Procedure Step 1 Use an M3 Phillips screwdriver to loosen the screws on the dustproof cap on the EXT_ALM port and remove the dustproof cap Step 2 Connect the waterproof DB15 connector at one end of the RRU alarm cable to the EXT_ALM port on the RRU as shown in Figure 9 19 RRU3262 Installation Guide 9 Installing RRU Cables ...

Page 114: ...ther end to external alarm devices NOTE Use insulating adhesive tapes to wrap cord end terminals that are not in use and fix them at a proper position based on the onsite situations This prevents false alarm reporting and equipment damage due to contact of exposed cables Figure 9 20 shows the method for handling cord end terminals not in use Figure 9 20 Method for handling cord end terminals that ...

Page 115: ...tection measures for example wear ESD gloves to prevent electrostatic damage to the boards modules or electronic components Step 2 Use an M5 Phillips screwdriver to loosen the three screws on the cover plate of the RRU cabling cavity and open the cover plate as shown in Figure 9 21 Figure 9 21 Opening the cover plate of the RRU cabling cavity 1 Cover plate 2 Cabling cavity 3 Clip 4 Cable trough fo...

Page 116: ...a CPRI optical cable Prerequisites Before the installation single mode optical modules can be distinguished from multimode optical modules in either of the following ways l SM and MM labels on an optical module SM indicates a single mode optical module and MM indicates a multimode optical module l Color of the puller on an optical module Blue indicates a single mode optical module and black or gra...

Page 117: ... shown in Figure 9 23 Figure 9 23 Installing an optical module NOTICE The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal Therefore you must insert an fiber optic cable into an unpacked optical module within 20 minutes Step 2 Connect the end labeled 1A and 1B of the optical cable to the optical module on the RRU side as shown in Figure 9 24 RRU3...

Page 118: ...quirements and then use cable ties to bind the cables Step 5 Label the installed cables according to the instructions in Attaching an L Shaped Label End 9 11 Installing an RRU Power Cable This section describes the procedure for installing an RRU power cable Prerequisites l A tool less female connector pressfit type is added to the RRU power cable on the RRU side For details see 12 1 Adding a Tool...

Page 119: ...side l North American standards The RTN wire is black and the NEG wire is blue l European standards The RTN wire is brown and the NEG wire is blue DCD U 11 B EPC5 connector DCD U 12 B CAUTION When installing the RRU power cable connect the power cable to the RRU connector first and then to the power equipment connector Incorrect connection sequence or reverse connection of positive and negative po...

Page 120: ...n the EPU l When the RRU power cable is connected to the EPU the blue core wire in the tool less female connector pressfit type is connected to the upper port on the EPU and the black brown core wire is connected to the lower port on the EPU Step 3 Route the cables according to the instructions in 9 1 Cabling Requirements and then use cable ties to bind the cables Step 4 Label the installed cables...

Page 121: ...of the power cable is properly tightened using the clip Figure 9 26 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity as shown in Figure 9 27 NOTICE Ensure that cables and waterproof blocks are properly inserted into troughs RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technol...

Page 122: ...r plate in the sequence shown in Figure 9 28 Then tighten the screws to 2 N m 17 7 lbf in in the same sequence Figure 9 28 Closing the cover plate of an RRU cabling cavity Step 4 Take off the ESD gloves and pack up all the tools End RRU3262 Installation Guide 9 Installing RRU Cables Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 114 ...

Page 123: ... caps 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 cab...

Page 124: ...ust restore power to the RRU within 24 hours Figure 11 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 RRU3262 Installation Guide 11 Powering On an RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co...

Page 125: ...f the 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 RRU3262 Installation Guide 11 Powering On an RRU Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 117 ...

Page 126: ...ool 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 RRU3262 Installation Guide 12 Appendix Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 118 ...

Page 127: ...text Figure 12 1 shows the cable diagram on labels Figure 12 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 12 2 Figure 12 2 Determining the length of the power cable RRU3262 Installation Guide 12 Appendix Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Hu...

Page 128: ...gth of the notch in the tool less female connector pressfit type as shown in Figure 12 4 Figure 12 4 Stripping the sheath off each core wire Figure 12 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 12 6 RRU3262 Installation Guide 12 Appendix Issue 01 2014 11 20 Huawei Proprietary and Conf...

Page 129: ...eversely connect the positive and negative poles Reverse connection of positive and negative poles may result in equipment malfunctions or personal injury Therefore check the power cable connection before powering on the RRU Figure 12 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...

Page 130: ... less female connector pressfit type for 1 5 mm 0 059 in as shown in Figure 12 9 Figure 12 9 Inserting core wires into the tool less female connector pressfit type End RRU3262 Installation Guide 12 Appendix Issue 01 2014 11 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 122 ...

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