Huawei RRU3232 Installation Manual
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Huawei RRU3232 Installation Manual

Huawei RRU3232 Installation Manual

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RRU3232
Installation Guide
Issue
05
Date
2011-10-20
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei RRU3232

  • Page 1 RRU3232 Installation Guide Issue Date 2011-10-20 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.
  • Page 3 Installation Guide About This Document About This Document Purpose This document describes the process of installing a DC RRU3232 (referred to as RRU in this document). Product Version The following table lists the product version related to this document. Product Name...
  • Page 4 Provides additional information to emphasize or supplement important points of the main text. General Conventions The general conventions that may be found in this document are defined as follows. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 5 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 6 Press the primary mouse button twice continuously and quickly without moving the pointer. Drag Press and hold the primary mouse button and move the pointer to a certain position. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 7 RRU3232 Installation Guide Contents Contents About This Document........................ii 1 Changes in the RRU3232 Installation Guide................1 2 Installation Preparations......................4 2.1 Reference Documents............................5 2.2 Tools and Instruments............................5 2.3 Skills and Requirements for Onsite Personnel....................6 3 Information About the Installation...................7 3.1 RRU Exterior..............................8 3.2 RRU Ports................................8...
  • Page 8 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 9: Changes In The Rru3232 Installation Guide

    Installation Guide 1 Changes in the RRU3232 Installation Guide Changes in the RRU3232 Installation Guide This chapter describes the changes in the RRU3232 Installation Guide. 05 (2011-10-20) This is the fifth official release. Compared with issue 04 (2011-09-15), this issue does not add any information.
  • Page 10 RRU3232 Installation Guide 1 Changes in the RRU3232 Installation Guide 03 (2011-07-15) This is the third official release. Compared with issue 02 (2011-06-10), this issue does not add any information. Compared with issue 02 (2011-06-10), this issue incorporates the following change:...
  • Page 11 RRU3232 Installation Guide 1 Changes in the RRU3232 Installation Guide Compared with draft A (2011-03-15), this issue does not remove any information. Draft A (2011-03-15) This is the draft. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Installation Preparations

    2.3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained. Before performing any operation, onsite personnel must be familiar with correct operation methods and safety precautions. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Reference Documents

    Phillips screwdriver (M3 to Flat-head screwdriver (M3 to Rubber mallet COAX crimping tool Wire stripper Utility knife Cable cutter Adjustable wrench (capacity ≥ 32 mm [1.26 in.]) Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Skills And Requirements For Onsite Personnel

    Before the installation, pay attention to the following items: The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods. The number of onsite personnel depends on the engineering schedule and installation environment.

  • Page 15: Information About The Installation

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Rru Exterior

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 17 (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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Rru Indicators

    Blinking (on for 0.125s and Software is being loaded to the off for 0.125s) module, or the module is not started. Alarms are generated, and the module must be replaced. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 19 CPRI ports (you are advised to check the system configuration to identify the fault). The SFP module is not properly installed, or the optical module is powered off. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Installation Options

    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 pole. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 21 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 22 (2) U-steel or angle steel Figure 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 23 RRU. 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Installation Clearance Requirements Of An Rru

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 25: Installation Clearance For A Single Rru

    Figure 3-13 Recommended installation clearance for a single RRU Minimum Installation Clearance for a Single RRU Figure 3-14 shows the minimum installation clearance for a single RRU. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Installation Clearance For Multiple Rrus

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 27 Figure 3-16 Recommended 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 28 RRUs installed on a wall in standard mode. Figure 3-18 Recommended clearance for multiple RRUs installed on a wall in standard mode Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 29 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 30: Installation Spacing Between Rrus

    RRUs. Figure 3-22 Minimum horizontal spacing between RRUs Recommended Vertical Spacing Between RRUs Figure 3-23 shows the recommended vertical spacing between RRUs. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 31 Installation Guide 3 Information About the Installation Figure 3-23 Recommended vertical spacing between RRUs Minimum Vertical Spacing Between RRUs Figure 3-24 shows the minimum vertical spacing between RRUs. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 32 RRU3232 Installation Guide 3 Information About the Installation Figure 3-24 Minimum vertical spacing between RRUs Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Unpacking The Equipment

    The total number does not tally with the Find out the cause and report any missing packing list articles to the local Huawei office. Step 2 Check the exterior of the packing case. If ... Then ... The outer packing is intact...
  • Page 34 ----End Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Installation Process

    The installation process involves installing an RRU and RRU cables, checking 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Installing The Rru

    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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 37 The RRU can be 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Mounting Kits For An Rru

    (2) Dual-nut bolt assembly (3) Main mounting bracket (4) Hoist clamp on the bracket main mounting bracket 6.2 Installing the RRU on a Pole One or more RRUs can be installed on a pole. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 39 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 40 Installation Guide 6 Installing the RRU Figure 6-5 Three RRUs installed on a pole in centralized mode Figure 6-6 Four RRUs installed on a pole in centralized mode Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Installing A Single Rru

    If the RRU must be installed on a tower, see 3.5.1 Installation Clearance for a Single to determine a position. If the RRU must be installed on the ground, see Figure 6-8 to determine a position. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 42 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 that the spacing is the same on the two sides. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Installing Two Rrus

    ----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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 44 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 45 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 main mounting bracket ----End Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Installing Multiple Rrus

    5 N·m (44.25 lbf·in.) using a torque screwdriver. Step 3 Install the first RRU on the main mounting bracket, as shown in Figure 6-17. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 47 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 48 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Installing The Rru On U-Steel

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 50 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 51 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 that the spacing is the same on the two sides. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 52: 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 53 If the RRU must be installed on the ground, see Figure 6-29 to determine a position. Figure 6-29 Distance between the main mounting bracket and the ground Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 54 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 that the spacing is the same on the two sides. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Installing The Rru On A Wall

    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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 56 (1) Auxiliary mounting bracket (2) RRU NOTE It is recommended that the auxiliary mounting bracket be 1,200 mm (47.24 in.) to 1,600 mm (62.99 in.) above the ground. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 57 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 58 Verify that the arrow on the auxiliary mounting bracket is pointing up. Step 4 Loosen the screws on the main mounting bracket and store them properly. Step 5 Install the main mounting bracket, as shown in Figure 6-37. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 59 Figure 6-37 Installing the main mounting bracket Step 6 Install 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Hoisting The Rru And Mounting Kits Onto A Tower

    Step 2 Bind the RRU by leading the lifting sling along the bottom of the attachment plate and through the RRU handle. Then, bind mounting kits to the lifting sling and bind the RRU handle to the traction sling, as shown in Figure 6-40. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 61 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 62 Step 3 Hoist the RRU and mounting kits onto the 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 63 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 64: Installing Rru Cables

    This section describes the procedure for installing a CPRI fiber optic cable. 7.12 Installing an SFP High-Speed Cable for Cascading RRUs This section describes the procedure for installing an SFP high-speed cable for cascading RRUs. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 65 7 Installing RRU Cables 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Cabling Requirements

    Power cables, transmission cables, and signal cables are routed separately. Multiple power cables must be bound when routed. Power cables must be installed in the position specified in engineering design documents. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 67: Cable Connections

    A lower-level RRU obtains power directly from the external power system, but not from an upper-level RRU using a power cable. Figure 7-1 shows the cable connections for a single RRU when the alarm monitoring function is performed. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 68 (3) RRU alarm 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 69 (4) RRU AISG 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 70 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Installation Process

    (6) RRU power cable cable for cascaded RRUs 7.3 Installation Process This section describes the process of installing RRU cables. Figure 7-5 shows the process of installing RRU cables. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Rru Cable List

    RRU Power Easy power NEG(-) and Easy power RRU0 to RRU5 Cable receptacle RTN(+) ports receptacle on the EPS (pressfit type) on the RRU (pressfit type) connector connector Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 73: Installing An Rru Pgnd Cable

    The cross-sectional area of an RRU PGND cable is 16 mm (0.025 in. ). The OT terminals at two ends of the cable are M6 and M8 terminals respectively. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 74 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 75: Installing An Rru Rf Jumper

    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 7-9. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 76 Step 4 Check the dustproof caps on antenna connectors. Dustproof caps must be waterproofed, as shown Figure 7-10. CAUTION Do not remove dustproof caps from vacant antenna connectors. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 77: Installing An Rru Alarm Cable

    Step 1 Link the DB9 connector at one end of the RRU alarm cable to the EXT_ALM port on the RRU, and link the eight cord end terminals at the other end to the external alarm device, as shown in Figure 7-11. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 78: Installing An Rru Aisg Multi-Wire Cable And Aisg Extension Cable

    Install an AISG multi-wire cable that is not configured with an AISG extension cable. 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 7-12. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 79 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Opening The Cover Plate Of An Rru Cabling Cavity

    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 7-15. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 81 (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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 82: Installing An Rru Power Cable

    Link the easy power receptacle (pressfit type) connector at one end of the RRU power cable to the power supply socket on the RRU, as shown in Figure 7-18. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 83 RRU, as shown in Figure 7-18. Link the easy power receptacle (pressfit type) connector at one end of the RRU power cable to the RRU0 port on the EPS subrack. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 84: Installing A Cpri Fiber Optic Cable

    Step 1 Lower the pullers of two optical modules, insert one optical module into the port on the RRU and the other optical module into the CPRI port on the BBU, and then raise the pullers, as shown Figure 7-19. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 85 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.). Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 86: Installing An Sfp High-Speed Cable For Cascading Rrus

    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 high-speed cable for cascading RRUs Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 87: Closing The Cover Plate Of An Rru Cabling Cavity

    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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 88 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 89 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 90: Checking The Rru Hardware Installation

    The connectors of each signal cable are intact and securely linked, and these cables are not damaged or broken. Labels are correct, legible, and complete at both ends of each cable, feeder, and jumper. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 91: Powering On An Rru

    After you unpack an RRU, you must power on 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 92: Appendix

    10.1 Adding an Easy Power 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 93 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. Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 94 Step 5 Add an easy power receptacle (pressfit type) connector to two core wires. Use a flat-head screwdriver to push sliding blocks, as shown in Figure 10-6. Figure 10-6 Pushing sliding blocks Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 95 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 Issue 05 (2011-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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