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Installing the RRU

About This Chapter

This chapter describes the procedure for installing the RRU. The RRU can be installed on a pole,
U-steel, angle steel, or wall. The procedure for installing the RRU varies depending on
installation options.

CAUTION

Do not stand the RRU upright because the load-bearing capacity of the RF ports at the RRU
bottom is low.

Place a foam pad or cardboard under an RRU to protect the RRU housing from damage
during the installation.

6.1 Mounting Kits for an RRU

This section describes the bracket assembly and the attachment plate for an RRU.

6.2 Installing the RRU on a Pole

One or more RRUs can be installed on a pole.

6.3 Installing the RRU on U-steel

This section describes the procedure for installing the RRU on U-steel and the precautions that
must be taken during the installation. The RRU installed on U-steel can be mounted to a tower
or placed on the ground. It is recommended that only one RRU be installed on U-steel.

6.4 Installing the RRU on Angle Steel

This section describes the procedure for installing the RRU on angle steel and the precautions
that must be taken during the installation. The RRU installed on angle steel can be mounted to
a tower or placed on the ground. It is recommended that only one RRU be installed on angle
steel.

6.5 Installing the RRU on a Wall

This section describes the procedure for installing the RRU on a wall and the precautions that
must be taken during the installation.

6.6 Hoisting the RRU and Mounting Kits onto a Tower

RRU3232
Installation Guide

6 Installing the RRU

Issue 05 (2011-10-20)

Huawei Proprietary and Confidential

Содержание RRU3232

Страница 1: ...RRU3232 Installation Guide Issue 05 Date 2011 10 20 HUAWEI TECHNOLOGIES CO LTD ...

Страница 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 ensu...

Страница 3: ... Guide 2 Installation Preparations This chapter describes the reference documents tools and instruments that must be ready before the installation In addition it specifies the skills and prerequisites that installation engineers must have 3 Information About the Installation Before installing an RRU you must be familiar with its exterior ports installation options physical supports and installatio...

Страница 4: ...eceptacle pressfit type connector Conventions Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Description Indicates a hazard with a high level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium or low level of risk which if not avoided could result in minor or moderate injury Indicates a potentially h...

Страница 5: ... brackets and separated by vertical bars One item is selected or no item is selected x y Optional items are grouped in braces and separated by vertical bars A minimum of one item or a maximum of all items can be selected x y Optional items are grouped in brackets and separated by vertical bars Several items or no item can be selected GUI Conventions The GUI conventions that may be found in this do...

Страница 6: ...erations The mouse operations that may be found in this document are defined as follows Action Description Click Select and release the primary mouse button without moving the pointer Double click Press the primary mouse button twice continuously and quickly without moving the pointer Drag Press and hold the primary mouse button and move the pointer to a certain position RRU3232 Installation Guide...

Страница 7: ...ple RRUs 18 3 5 3 Installation Spacing Between RRUs 22 4 Unpacking the Equipment 25 5 Installation Process 27 6 Installing the RRU 28 6 1 Mounting Kits for an RRU 30 6 2 Installing the RRU on a Pole 30 6 2 1 Installing a Single RRU 33 6 2 2 Installing Two RRUs 35 6 2 3 Installing Multiple RRUs 38 6 3 Installing the RRU on U steel 41 6 4 Installing the RRU on Angle Steel 44 6 5 Installing the RRU o...

Страница 8: ...an RRU power cable 74 7 11 Installing a CPRI Fiber Optic Cable 76 7 12 Installing an SFP High Speed Cable for Cascading RRUs 78 7 13 Closing the Cover Plate of an RRU Cabling Cavity 79 8 Checking the RRU Hardware Installation 82 9 Powering On an RRU 83 10 Appendix 84 10 1 Adding an Easy Power Receptacle Pressfit Type Connector to the RRU Power Cable on the RRU Side 85 RRU3232 Installation Guide Co...

Страница 9: ...2011 09 15 this issue omits the following topic l Installing an SFP high speed cable for cascaded RRUs 04 2011 09 15 This is the fourth official release Compared with issue 03 2011 07 15 this issue does not add any information Compared with issue 03 2011 07 15 this issue incorporates the following changes Topic Change Description 9 Powering On an RRU Optimized the description of the RRU power on c...

Страница 10: ...rior Compared with issue 01 2011 05 15 this issue does not remove any information 01 2011 05 15 This is the first official release Compared with draft A 2011 03 15 this issue does not add any information Compared with draft A 2011 03 15 this issue incorporates the following changes Topic Change Description Installing an RRU RF Jumper Optimized the procedure for waterproofing the connectors on the ...

Страница 11: ...issue does not remove any information Draft A 2011 03 15 This is the draft RRU3232 Installation Guide 1 Changes in the RRU3232 Installation Guide Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 ...

Страница 12: ...liar with reference documents 2 2 Tools and Instruments All tools and instruments required for RRU installation must be ready before the installation 2 3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained Before performing any operation onsite personnel must be familiar with correct operation methods and safety precautions RRU3232 Installation Guide 2 Insta...

Страница 13: ...e IFS06 the following reference document is required l DBS3900 ICR Installation Guide 2 2 Tools and Instruments All tools and instruments required for RRU installation must be ready before the installation Hammer drill a φ 14 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 Utility knife Cable cutter ...

Страница 14: ...e personnel must be familiar with correct operation methods and safety precautions Before the installation pay attention to 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...

Страница 15: ...r panel 3 3 RRU Indicators This section describes six indicators on an RRU They indicate the running status 3 4 Installation Options This section describes RRU installation options An RRU can be installed on a pole U steel angle steel or wall 3 5 Installation Clearance Requirements of an RRU This section describes the requirements for the installation clearance of a single RRU and multiple RRUs an...

Страница 16: ...g Figure 3 1 RRU exterior Figure 3 2 shows RRU dimensions Figure 3 2 RRU dimensions 3 2 RRU Ports This section describes RRU ports positioned on the RRU panels An RRU has a bottom panel cabling cavity panel and indicator panel RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 8 ...

Страница 17: ...s Item Label Description 1 Ports at the bottom ANT0 ANT3 TX RX port ANT0 port supports RET signal transmission RET EXT_ALM Communication port for the RET antenna or port for alarm reporting supporting RET signal transmission RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 9 ...

Страница 18: ...ing status For detailed positions of RRU indicators see 3 2 RRU Ports Table 3 2 describes RRU indicators Table 3 2 RRU indicators Label Color Status Description RUN Green On There is power supply but the module is faulty Off There is no power supply or the module is faulty Blinking on for 1s and off for 1s The module is working properly Blinking on for 0 125s and off for 0 125s Software is being l...

Страница 19: ...out of lock because of mutual lock of dual mode clock sources or mismatched data rates over CPRI ports you are advised to check the system configuration to identify the fault Off The SFP module is not properly installed or the optical module is powered off CPRI1 IR1 Red and green Steady green The CPRI link is available Steady red An optical module fails to transmit or receive signals because the o...

Страница 20: ...ecommended diameter is 80 mm 3 15 in l If the diameter of a pole ranges from 60 mm 2 36 in to 76 mm 2 99 in a maximum of two RRUs can be installed on the pole and the side mounted installation is not recommended l If three or more RRUs must be installed on a pole in centralized mode the diameter of the pole must range from 76 mm 2 99 in mm to 114 mm 4 49 in Figure 3 5 shows an RRU installed on a p...

Страница 21: ...s CAUTION l It is recommended that only one RRU be installed on U steel l The vertical deviation angle of U steel must be less than or equal to 10 degrees as shown in Figure 3 7 RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 13 ...

Страница 22: ...igure 3 8 shows an RRU installed on U steel Figure 3 8 RRU installed on U steel Installing an RRU on Angle Steel Figure 3 9 shows angle steel specifications RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 14 ...

Страница 23: ...Installing an RRU on a Wall The wall on which RRUs are installed must meet the following requirements l When a single RRU is installed the wall has a capacity of bearing at least four times the weight of the RRU l Expansion bolts must be tightened to 30 N m 265 52 lbf in to ensure the bolts work properly and the wall remains intact without cracks in it RRU3232 Installation Guide 3 Information Abou...

Страница 24: ...RU installed on a wall 3 5 Installation Clearance Requirements of an RRU This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 16...

Страница 25: ...leave the minimum installation clearance 3 5 1 Installation Clearance for a Single RRU This section describes the recommended and minimum installation clearance for a single RRU Recommended Installation Clearance for a Single RRU Figure 3 13 shows the recommended installation clearance for a single RRU Figure 3 13 Recommended installation clearance for a single RRU Minimum Installation Clearance f...

Страница 26: ...installed on a tower Figure 3 15 Minimum installation clearance for a single RRU installed on a tower 3 5 2 Installation Clearance for Multiple RRUs This section describes the recommended and minimum installation clearance for multiple RRUs RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 18...

Страница 27: ...d installation clearance for multiple RRUs installed in centralized mode Minimum Installation Clearance for Multiple RRUs Installed in Centralized Mode Figure 3 17 shows the minimum installation clearance for multiple RRUs installed in centralized mode RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologi...

Страница 28: ...ndard Mode Figure 3 18 shows the recommended clearance for multiple RRUs installed on a wall in standard mode Figure 3 18 Recommended clearance for multiple RRUs installed on a wall in standard mode RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 20 ...

Страница 29: ...nstalled on a wall in standard mode Recommended Clearance for Multiple RRUs Side Mounted on a Wall Figure 3 20 shows the recommended clearance for multiple RRUs side mounted on a wall Figure 3 20 Recommended clearance for multiple RRUs side mounted on a wall RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Tech...

Страница 30: ...nded horizontal spacing between RRUs Minimum Horizontal Spacing Between RRUs Figure 3 22 shows the minimum horizontal spacing between RRUs Figure 3 22 Minimum horizontal spacing between RRUs Recommended Vertical Spacing Between RRUs Figure 3 23 shows the recommended vertical spacing between RRUs RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary ...

Страница 31: ...inimum Vertical Spacing Between RRUs Figure 3 24 shows the minimum vertical spacing between RRUs RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 23 ...

Страница 32: ...re 3 24 Minimum vertical spacing between RRUs RRU3232 Installation Guide 3 Information About the Installation Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 24 ...

Страница 33: ...se 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 missing articles to the local Huawei office Step 2 Check the exterior of the packing case If Then The outer packing is intact Go to Step 3 The outer packing is severely damaged or soaked Find out the cause and r...

Страница 34: ...the Article Replacement Report WARNING 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 End RRU3232 Installation Guide 4 Unpacking the Equipment Issue 05 2011 10 20 Huawe...

Страница 35: ...king 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 RRU3232 Installation Guide 5 Installation Process Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 27 ...

Страница 36: ...for installing the RRU on U steel and the precautions that must be taken during the installation The RRU installed on U steel can be mounted to a tower or placed on the ground It is recommended that only one RRU be installed on U steel 6 4 Installing the RRU on Angle Steel This section describes the procedure for installing the RRU on angle steel and the precautions that must be taken during the i...

Страница 37: ... installed on a pole U steel or angle steel This section describes the procedure for hoisting the RRU and mounting kits onto the tower and the precautions that must be taken RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 29 ...

Страница 38: ...racket assembly for an RRU Figure 6 2 Bracket assembly for an RRU 1 Auxiliary mounting bracket 2 Dual nut bolt assembly 3 Main mounting bracket 4 Hoist clamp on the main mounting bracket 6 2 Installing the RRU on a Pole One or more RRUs can be installed on a pole RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co...

Страница 39: ...6 4 shows two RRUs installed on a pole Figure 6 4 Two RRUs installed on a pole Figure 6 5 Figure 6 6 and Figure 6 7 show more than two RRUs installed on a pole RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 31 ...

Страница 40: ...on a pole in centralized mode Figure 6 6 Four RRUs installed on a pole in centralized mode RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 32 ...

Страница 41: ... see 6 6 Hoisting the RRU and Mounting Kits onto a Tower The hoist clamp on the main mounting bracket is secured properly Procedure Step 1 Determine a position for installing the main mounting bracket l If the RRU must be installed on a tower see 3 5 1 Installation Clearance for a Single RRU to determine a position l If the RRU must be installed on the ground see Figure 6 8 to determine a position...

Страница 42: ...ly NOTE Verify that the arrow on the main mounting bracket is pointing up Step 4 Using a torque wrench tighten the nuts to 40 N m 354 03 lbf in to secure the bracket assembly onto the pole as shown in Figure 6 10 CAUTION Tighten the two dual nut bolt assemblies alternatively After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure...

Страница 43: ...re 6 11 Installing the RRU on the main mounting bracket End 6 2 2 Installing Two RRUs This section describes the procedure for installing two RRUs on a pole and the precautions that must be taken during the installation RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 35 ...

Страница 44: ...ket to secure the second RRU as shown in Figure 6 13 Figure 6 13 Installing the second main mounting bracket Step 3 Interchange the cover plate and plastic screws in the front and the attachment plate and stainless steel screws at the rear of the second RRU as shown in Figure 6 14 RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huaw...

Страница 45: ...en the screws to 0 25 N m 2 21 lbf in using a torque screwdriver 4 Install the cover plate onto the RRU rear 5 Install the attachment plate onto the RRU front and tighten the stainless steel screws on the attachment plate to 5 N m 44 25 lbf in using a torque screwdriver Step 4 Install the second RRU on the main mounting bracket as shown in Figure 6 15 Figure 6 15 Installing the second RRU on the m...

Страница 46: ...rchanging the attachment plate at the RRU rear and the cover plate on the RRU side 1 Remove the attachment plate from the RRU rear using an inner hexagon screwdriver 2 Remove the cover plate from the RRU side and use a Phillips screwdriver to remove the plastic screws from the RRU 3 Install the plastic screws onto the RRU rear and tighten the screws to 0 25 N m 2 21 lbf in using a torque screwdriv...

Страница 47: ...st main mounting bracket as shown in Figure 6 18 Figure 6 18 Installing the second main mounting bracket Step 5 Install the second RRU on the second main mounting bracket as shown in Figure 6 19 RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 39 ...

Страница 48: ...rd RRU on the main mounting bracket as shown in Figure 6 20 Figure 6 20 Installing the third RRU on the third main mounting bracket Step 7 Install the fourth main mounting bracket as shown in Figure 6 21 RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 40 ...

Страница 49: ... steel and the precautions that must be taken during the installation The RRU installed on U steel can be mounted to a tower or placed on the ground It is recommended that only one RRU be installed on U steel Prerequisite Before you install an RRU on a tower the RRU and mounting kits are hoisted onto the tower For details see 6 6 Hoisting the RRU and Mounting Kits onto a Tower RRU3232 Installation...

Страница 50: ...main mounting bracket l If the RRU must be installed on a tower see 3 5 1 Installation Clearance for a Single RRU to determine a position l If the RRU must be installed on the ground see Figure 6 24 to determine a position Figure 6 24 Distance between the main mounting bracket and the ground RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Cop...

Страница 51: ...ng the bracket assembly NOTE Verify that the arrow on the main mounting bracket is pointing up Step 4 Using a torque wrench tighten the nuts to 40 N m 354 03 lbf in to secure the bracket assembly onto the U steel as shown in Figure 6 26 CAUTION Tighten the two dual nut bolt assemblies alternatively After the main and auxiliary brackets are secured properly measure the spacing between the brackets ...

Страница 52: ...main mounting bracket End 6 4 Installing the RRU on Angle Steel This section describes the procedure for installing the RRU on angle steel and the precautions that must be taken during the installation The RRU installed on angle steel can be mounted to RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 44 ...

Страница 53: ...f the RRU installed on angle steel Figure 6 28 Top view of the RRU 1 Angle steel Procedure Step 1 Determine a position for installing the main mounting bracket l If the RRU must be installed on a tower see 3 5 1 Installation Clearance for a Single RRU to determine a position l If the RRU must be installed on the ground see Figure 6 29 to determine a position Figure 6 29 Distance between the main m...

Страница 54: ... the bracket assembly NOTE Verify that the arrow on the main mounting bracket is pointing up Step 4 Using a torque wrench tighten the nuts to 40 N m 354 03 lbf in to secure both the bracket assembly onto the angle steel as shown in Figure 6 31 CAUTION Tighten the two dual nut bolt assemblies alternatively After the main and auxiliary brackets are secured properly measure the spacing between the br...

Страница 55: ... 6 32 Installing the RRU on the main mounting bracket End 6 5 Installing the RRU on a Wall This section describes the procedure for installing the RRU on a wall and the precautions that must be taken during the installation RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 47 ...

Страница 56: ...act without cracks in it Procedure Step 1 Place the auxiliary mounting bracket against the installation position use a level to verify that the auxiliary mounting bracket is placed horizontally and then mark anchor points with a marker as shown in Figure 6 33 Figure 6 33 Marking anchor points 1 Auxiliary mounting bracket 2 RRU NOTE It is recommended that the auxiliary mounting bracket be 1 200 mm ...

Страница 57: ...rting an expansion bolt assembly 1 Use a hammer drill with a φ14 bit to drill holes vertically at the marked anchor points Ensure that the depth of each hole ranges from 55 mm 2 17 in to 60 mm 2 36 in WARNING Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Propri...

Страница 58: ... 0 79 in to 30 mm 1 18 in of the expansion bolt outside the wall Step 3 Fit the auxiliary mounting bracket on the expansion bolt and then use a torque wrench 17 mm 0 67 in to tighten the expansion bolt to 30 N m 265 52 lbf in as shown in Figure 6 36 Figure 6 36 Fitting the auxiliary mounting bracket on expansion bolts CAUTION Verify that the arrow on the auxiliary mounting bracket is pointing up S...

Страница 59: ... the RRU on the main mounting bracket until the RRU snaps shut as shown in Figure 6 38 Figure 6 38 Installing the RRU End RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 51 ...

Страница 60: ...ION When installed on a tower only one RRU can be installed in standard mode or reverse mode and two RRUs can be installed on a pole in back to back mode RRUs cannot be installed on the side and the brackets for more than two RRUs cannot be combined Procedure Step 1 Bind the RRU and mounting kits properly using a lifting sling as shown in Figure 6 39 Figure 6 39 Binding mounting kits for the RRU S...

Страница 61: ... the tower protect them from colliding with the ground and tower l Hoist the RRU onto the tower before it is installed on a pole angle steel or U steel CAUTION Do not hoist the RRU by the handle only as shown in Figure 6 41 RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 53 ...

Страница 62: ...e tower as shown in Figure 6 42 Figure 6 42 Hoisting the RRU and mounting kits onto the tower 1 Lifting sling 2 Fixed pulley 3 Traction sling RRU3232 Installation Guide 6 Installing the RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 54 ...

Страница 63: ...on engineer B pulls the lifting sling downwards and installation engineer C pulls the traction sling outwards to protect the RRU and mounting kits from colliding with the tower 4 Installation engineer A catches the RRU and mounting kits and then unties the sling NOTE The procedure for hoisting the RRU and mounting kits onto the tower is for your reference only End RRU3232 Installation Guide 6 Inst...

Страница 64: ...ble This section describes the procedure for installing an RRU alarm cable 7 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 7 9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover plate of an RRU cabling cavity 7 10 I...

Страница 65: ...ng Cavity This section describes the procedure for closing the cover plate of an RRU cabling cavity RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 57 ...

Страница 66: ...cable The cables must be bound as follows l Different types of cables must be separately routed and cannot be entangled l The cables must be bound tightly and neatly The sheaths of the cables must not be damaged l The cable ties must face the same direction and those at the same horizontal line must be in a straight line Extra length of cable ties must be cut l Labels or nameplates must be attache...

Страница 67: ...les 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 with cable ties l Sufficient slack is provided in E1 cables at turns Cabling requirements for fiber optic cables are as follows l D...

Страница 68: ...m cable 4 CPRI fiber optic cable 5 RRU power cable Figure 7 2 shows the cable connections for a single RRU when the RET function is performed RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 60 ...

Страница 69: ...ISG extension cable 5 CPRI fiber optic cable 6 RRU power cable Figure 7 3 shows the cable connections for multiple RRUs when the alarm monitoring function is performed RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 61 ...

Страница 70: ...le NOTE If you must cascade two or more RRUs in the same cell for example when expanding capacity install the alarm cable to the last RRU Figure 7 4 shows the cable connections for multiple RRUs when the RET function is performed RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 62 ...

Страница 71: ...c cable SFP high speed cable for cascaded RRUs 6 RRU power cable 7 3 Installation Process This section describes the process of installing RRU cables Figure 7 5 shows the process of installing RRU cables RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 63 ...

Страница 72: ...RRU PGND Cable OT terminal M6 16 mm2 0 025 in 2 Ground terminal on the RRU OT terminal M8 16 mm2 0 025 in 2 Ground terminal on the ground bar RRU Power Cable Easy power receptacle pressfit type connector NEG and RTN ports on the RRU Easy power receptacle pressfit type connector RRU0 to RRU5 on the EPS RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Con...

Страница 73: ...rt on the RRU Cord end terminal External alarm device RRU AISG Multi Wire Cable Waterproofed DB9 male connector RET EXT_ALM 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 Standard AISG...

Страница 74: ... OT terminal at one end of the PGND cable 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 7 6 Figure 7 6 Installing an RRU PGND cable NOTE Crimp OT terminals in correct positions as shown in Figure 7 7 Figure 7 7 Correct position of an OT terminal RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Hu...

Страница 75: ...lling an RRU RF jumper CAUTION 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 Link the other end of the RF jumper to the external antenna system Step 3 Waterproof the connectors of the RF ...

Страница 76: ...lly from bottom up Do not cut the tape until all the three layers of the tape are already wrapped Wrap each layer of tape around the connector tightly 3 Wrap each connector with three layers of PVC insulation 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 Wrap each layer of tape around the connector t...

Страница 77: ...e layers of PVC insulation 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 Wrap each layer of tape around the connector tightly Step 5 Lay out the jumper by referring to 7 1 Cabling Requirements and then bind the jumper using cable ties Step 6 Label the installed jumper by referring to Attaching a Sign...

Страница 78: ...n the distance between an RRU and a Remote Control Unit RCU is longer than 5 m 16 4 ft an AISG multi wire cable is not long enough to connect the 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 Link the waterproofed DB9 connector at one end the AISG mu...

Страница 79: ...bel l Install an AISG multi wire cable that is configured with an AISG extension cable 1 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 7 13 Figure 7 13 Installing an RRU AISG multi wire cable RRU3232 Installation Guide 7 Installin...

Страница 80: ...This section describes the procedure for opening the cover plate of an RRU cabling cavity Procedure Step 1 Wear ESD gloves CAUTION Take 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 lowe...

Страница 81: ...s 3 Cable trough for the fiber optic cable 4 Cable trough for the power cable 5 Waterproof block 6 Clip 7 Cabling cavity Step 3 Loosen the screws on the clip and open the clip as shown Figure 7 17 NOTE Open the clip only for the associated cable RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 73 ...

Страница 82: ...etails see the DBS3900 Installation Guide Context There are two types of RRU power cables in terms of cross sectional areas 3 3 mm2 0 005 in 2 12 AWG complying with North American standards and 4 mm2 0 006 in 2 complying with European standards Procedure l Install an RRU power cable that feeds power to an RRU from a DCDU 03B when the DCDU 03B is configured 1 Link the easy power receptacle pressfit...

Страница 83: ...e by referring to 7 1 Cabling Requirements and then bind the cable using cable ties 4 Label the installed cable by referring to Attaching a Cable Tying Label l Install an RRU power cable that feeds power to an RRU from the embedded power system EPS when the EPS is configured 1 Link the easy power receptacle pressfit type connector at one end of the RRU power cable to the power supply socket on the...

Страница 84: ...er of the following ways l SM and MM labels on an optical module SM indicates a single mode optical module and MM indicates a multi mode optical module l Color of the puller on an optical module Blue indicates a single mode optical module and black or gray indicates a multi mode optical module CAUTION The optical modules to be installed must match CPRI rates Context A CPRI fiber optic cable transm...

Страница 85: ...nd labeled 1A and 1B of the fiber optic cable to the optical module on the RRU side as shown in Figure 7 20 Figure 7 20 Installing a CPRI fiber optic cable CAUTION Install the fiber optic cable in the cable clip near the power cable to leave some slack at the bend Tighten the screws on the cable clip to 1 4 N m 12 39 lbf in RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Hua...

Страница 86: ...cribes the procedure for installing an SFP high speed cable for cascading RRUs Context An SFP high speed cable for cascading RRUs connects to CPRI ports between two RRUs within a distance of 2 m 6 56 ft and transmits CPRI signals between the RRUs Procedure Step 1 Connect one end of the SFP high speed cable to the CPRI1 port on the cabling cavity of the upper level RRU Figure 7 21 Installing an SFP...

Страница 87: ...s Step 4 Label the installed cable by referring to Attaching an L Shaped Label End 7 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 Procedure Step 1 Close clips and tighten the screws on each clip to 1 4 N m 12 39 lbf in using a torque screwdriver as shown in Figure 7 22 Figure 7 22 Closing clips RRU3232...

Страница 88: ...lacement of waterproof blocks Step 3 Close the cover plate of the RRU cabling cavity and tighten the screws on the cover plate to 0 8 N m 7 08 lbf in using a torque screwdriver as shown in Figure 7 24 Figure 7 24 Closing the cover plate of the RRU cabling cavity 1 Protection screw RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright H...

Страница 89: ...rly inserted into troughs l Tighten the screws on the cover plate in the sequence shown in the figure Step 4 Take off the ESD gloves and pack up all the tools End RRU3232 Installation Guide 7 Installing RRU Cables Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 81 ...

Страница 90: ...aps and the caps are waterproofed 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 ca...

Страница 91: ...n it within 24 hours If you power off the RRU for maintenance you must restore power to the RRU within 24 hours Figure 9 1 shows the RRU power on check process Figure 9 1 RRU power on check process RRU3232 Installation Guide 9 Powering On an RRU Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 83 ...

Страница 92: ...ower Receptacle Pressfit Type Connector to the RRU Power Cable on the RRU Side This section describes the procedure for adding an easy power receptacle pressfit type connector to the RRU power cable on the RRU side RRU3232 Installation Guide 10 Appendix Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 84 ...

Страница 93: ...le diagram on labels Figure 10 1 Cable diagram on labels 1 Cable diagram on labels Step 2 Determine the length of the power cable for different operations based on the labels as shown in Figure 10 2 Figure 10 2 Determining the length of the power cable Step 3 Strip the specified length of the sheath off the power cable as shown in Figure 10 3 RRU3232 Installation Guide 10 Appendix Issue 05 2011 10...

Страница 94: ...s shown in Figure 10 4 Figure 10 4 Stripping the sheath off each core wire Figure 10 5 Matched length Step 5 Add an easy power receptacle pressfit type connector to two core wires 1 Use a flat head screwdriver to push sliding blocks as shown in Figure 10 6 Figure 10 6 Pushing sliding blocks RRU3232 Installation Guide 10 Appendix Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Hua...

Страница 95: ...hown in Figure 10 7 Figure 10 7 Adding an easy power receptacle pressfit type connector to two core wires Step 6 Strip the specified length of the sheath off the power cable to expose the intact shield layer as shown in Figure 10 8 Figure 10 8 Stripping the sheath off the power cable End RRU3232 Installation Guide 10 Appendix Issue 05 2011 10 20 Huawei Proprietary and Confidential Copyright Huawei...

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