RRU3268 Installation Guide Issue Date HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
RRU3268 Installation Guide About This Document About This Document Purpose This document describes the process of installing a DC RRU3268 (referred to as RRU in this document). Product Versions The following table lists the product versions related to this document.
RRU3268 Installation Guide About This Document This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact. 5 Installation Process The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on the RRU. 6 (Optional) Installing the Plastic Shells of the RRU This section describes the procedure for installing the plastic shells of the RRU.
RRU3268 Installation Guide About This Document Symbol Description Indicates a tip that may help you solve a problem or save time. 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. Convention Description Times New Roman Normal paragraphs are in Times New Roman. Boldface Names of files, directories, folders, and users are in boldface.
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RRU3268 Installation Guide Contents Contents About This Document.....................................................................................................................ii 1 Changes in the RRU3268 Installation Guide...........................................................................1 2 Installation Preparations..............................................................................................................2 2.1 Reference Documents............................................
RRU3268 Installation Guide Contents 8.5 Installing the RRU on a Wall...........................................................................................................................73 8.6 Installing an RRU on an IFS06.........................................................................................................................79 9 Installing RRU Cables................................................................................................................87 9.
RRU3268 Installation Guide 1 1 Changes in the RRU3268 Installation Guide Changes in the RRU3268 Installation Guide This chapter describes the changes in the RRU3268 Installation Guide. 01 (2013-03-18) This is the first official release. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 2 Installation Preparations 2 Installation Preparations About This Chapter 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. 2.1 Reference Documents Before the installation, you must be familiar with reference documents. 2.
RRU3268 Installation Guide 2 Installation Preparations 2.1 Reference Documents Before the installation, you must be familiar with reference documents. The following reference documents are required during RRU installation: l RRU3268 Hardware Description l DBS3900 Installation Guide l OCB User Guide 2.2 Tools and Instruments All tools and instruments required for RRU installation must be ready before the installation.
RRU3268 Installation Guide 2 Installation Preparations Utility knife Cable cutter Adjustable wrench (capacity ≥ 32 mm [1.26 in.]) Torque wrench Capacity: 16 mm [0.63 in.], and 32 mm [1.26 in.] Combination wrench Capacity: 16 mm [0.63 in.], and 32 mm [1.26 in.] Torque screwdriver Level Torque socket 5 mm (0.2 in.) 5 mm (0.2 in.) (M3 to M6) (M3 to M6) Multimeter Marker (diameter ≤ 10 mm [0.39 in.]) Measuring tape Inner hexagon spanner Fixed pulley Rope - - 5 mm (0.2 in.
RRU3268 Installation Guide 2 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. Before the installation, pay attention to the following items: Issue () l The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods.
RRU3268 Installation Guide 3 Information About the Installation 3 Information About the Installation About This Chapter Before installing an RRU, you must be familiar with its exterior, ports, indicators, installation options and installation clearance requirements. 3.1 RRU Exterior This section describes the exterior and dimensions of an RRU. 3.2 RRU Ports This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel. 3.
RRU3268 Installation Guide 3 Information About the Installation 3.1 RRU Exterior This section describes the exterior and dimensions of an RRU. Figure 3-1 shows an RRU. Figure 3-1 RRU exterior Figure 3-2 shows RRU dimensions. Figure 3-2 RRU dimensions Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation 3.2 RRU Ports This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel. Figure 3-3 shows the ports on the RRU panels. Figure 3-3 Ports on the RRU panels Table 3-1 describes ports and indicators on the RRU panels.
RRU3268 Installation Guide 3 Information About the Installation Item (2) Ports at the bottom (3) Indicators Silkscreen Description CPRI1 Optical/electrical port 1 ANT_TX/RXA TX/RX port A, supporting RET signal transmission ANT_TX/RXB TX/RX port B EXT_ALM Alarm port RET Communication port for the RET antenna, supporting RET signal transmission RUN For details, see 3.3 RRU Indicators. ALM ACT VSWR CPRI0 CPRI1 3.3 RRU Indicators This section describes six indicators on an RRU.
RRU3268 Installation Guide 3 Information About the Installation Indicator ACT VSWR CPRI0 CPRI1 Issue () Color Green Red Red or green Red or green Status Meaning Blinking (on for 1s and off for 1s) Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, you need to locate the fault before deciding whether to replace the module. Steady off No alarm is generated.
RRU3268 Installation Guide 3 Information About the Installation 3.4 Installation Scenarios An RRU can be installed on a pole, U-steel, angle steel, or IFS06. Installation scenarios must meet heat-dissipation and waterproofing requirements of the RRU. Requirements for the Installation Scenarios Application scenarios: To ensure proper heat dissipation of the RRU, the following requirements must be met: l The RRU cannot be installed in an enclosed cabinet without a cooling system.
RRU3268 Installation Guide 3 Information About the Installation 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 for installing RRUs on the auxiliary pole to meet the minimum clearance requirements. Otherwise, the standard mode is recommended for installing RRUs on the auxiliary pole.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-7 shows a single RRU installed on a pole. Figure 3-7 A single RRU installed on a pole Figure 3-8 shows two RRUs installed on a pole. Figure 3-8 Two RRUs installed on a pole Figure 3-9, Figure 3-10, and Figure 3-11 show three or more RRUs installed on a pole. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-9 Three RRUs installed on a pole Figure 3-10 Four RRUs installed on a pole Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-11 Six RRUs installed on a pole Installing an RRU on U-steel Figure 3-12 shows U-steel specifications. Figure 3-12 U-steel specifications CAUTION U-steel supports the standard or reverse installation of a single RRU only. Figure 3-13 shows an RRU installed on U-steel. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-13 RRU installed on U-steel Installing an RRU on Angle Steel Figure 3-14 shows angle steel specifications. Figure 3-14 Angle steel specifications CAUTION Angle steel supports the standard or reverse installation of a single RRU only. Figure 3-15 shows an RRU installed on angle steel. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-15 RRU installed on angle steel Installing an RRU on a Wall The wall for installing RRUs 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 anchor bolts must be tightened to 30 N·m (265.52 lbf·in.) so that the bolts stay secured without damaging the wall.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-17 Correct installation of mounting brackets for multiple RRUs installed on an indoor wall in side-mounted mode Figure 3-18 shows an RRU installed on a wall. Figure 3-18 RRU installed on a wall Installing an RRU on an IFS06 In an IFS06 scenario: Issue () l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of RRUs.
RRU3268 Installation Guide 3 Information About the Installation of the RRU and at least 10°C (50°F) lower than the highest operating temperature of the RRU. NOTE For details about the operating temperature of the RRU, see section "Technical Specifications of RRUs" in 3900 Series Base Station Technical Description. CAUTION The mounting brackets for multiple RRUs cannot be combined when the RRUs are installed on an IFS06, as shown in Figure 3-19.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-20 Three RRUs installed on an IFS06 (1) Height-restricted scenario Issue () (2) Height-unrestricted scenario Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-21 Six RRUs installed on an IFS06 (1) Height-restricted scenario (2) Height-unrestricted scenario 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. 3.5.1 Clearance for a Single RRU This section describes the recommended and minimum clearance for a single RRU.
RRU3268 Installation Guide 3 Information About the Installation NOTE l The recommended clearance ensures normal running and provides an appropriate space for operation and maintenance (OM). If there is sufficient space, leave the recommended clearance after installing the equipment. l The minimum clearance ensures normal running and heat dissipation, but OM activities such as checking indicator status and opening the cabling cavity cannot be properly conducted.
RRU3268 Installation Guide 3 Information About the Installation Clearances for a Single RRU in Side-Mounted Mode Figure 3-23 shows the clearances for a single RRU in side-mounted mode. Figure 3-23 Clearances for a single RRU in side-mounted mode Clearances for a Single Tower-mounted RRU Figure 3-24 and Figure 3-25 show the clearances for a single tower-mounted RRU in standard or reverse mode and in side-mounted mode, respectively.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-24 Minimum clearance for a single tower-mounted RRU in standard or reverse mode Figure 3-25 Minimum clearance for a single tower-mounted RRU in side-mounted mode 3.5.2 Clearance for Multiple RRUs This section describes the recommended and minimum clearance for multiple RRUs. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation NOTE l The recommended clearance ensures normal running and provides an appropriate space for operation and maintenance (OM). If there is sufficient space, leave the recommended clearance after installing the equipment. l The minimum clearance ensures normal running and heat dissipation, but OM activities such as checking indicator status and opening the cabling cavity cannot be properly conducted.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-27 Minimum clearances for multiple RRUs installed in centralized mode Recommended Clearance for Multiple RRUs Installed on a Wall in Standard Mode Figure 3-28 shows the recommended clearance for multiple RRUs installed on a wall in standard mode. Figure 3-28 Recommended clearances for three or more RRUs installed on a wall in standard mode Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Minimum Clearance for Multiple RRUs Installed on a Wall in Standard Mode Figure 3-29 shows the minimum clearance for multiple RRUs installed on a wall in standard mode. Figure 3-29 Minimum clearances for three or more RRUs installed on a wall in standard mode Recommended Clearance for Multiple RRUs Side-Mounted on a Wall Figure 3-30 shows the recommended clearance for multiple RRUs side-mounted on a wall.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-30 Recommended clearances for three or more RRUs installed on a wall in sidemounted mode 3.5.3 Installation Spacing Between RRUs This section describes the horizontal and vertical spacing between RRUs. Recommended Horizontal Spacing Between RRUs Figure 3-31 shows the recommended horizontal spacing between RRUs.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-32 Minimum horizontal spacing between RRUs Recommended Vertical Spacing Between RRUs Figure 3-33 shows the recommended vertical spacing between RRUs. Figure 3-33 Recommended vertical spacing between RRUs Minimum Vertical Spacing Between RRUs Figure 3-34 shows the minimum vertical spacing between RRUs. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 3 Information About the Installation Figure 3-34 Minimum vertical spacing between RRUs Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 4 Unpacking the Equipment 4 Unpacking the Equipment This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact. Context NOTE When transporting, moving, or installing the equipment, components, or parts, you must: l Ensure that they are transported in the delivered packages instead of being unpacked or in nonstandard packages.
RRU3268 Installation Guide 4 Unpacking the Equipment If ... Then ... The outer packing is intact Go to Step 3. The outer packing is severely damaged or Find out the cause and report it to the local soaked Huawei office. The shockwatch label is red Stop unpacking the wooden crate, and then report it to the transportation company. Step 3 Check the type and quantity of the equipment in the cases according to the packing list. If ... Then ...
RRU3268 Installation Guide 5 Installation Process 5 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 () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 6 6 (Optional) Installing the Plastic Shells of the RRU (Optional) Installing the Plastic Shells of the RRU This section describes the procedure for installing the plastic shells of the RRU. Context An RRU is equipped with a plastic shell 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.
RRU3268 Installation Guide 6 (Optional) Installing the Plastic Shells of the RRU (1) Screw (2) Metal sheet Step 2 Install a buckle on each side at the bottom of the RRU, and use an M4 torque wrench to tighten the screws on the buckles to 1.4 N•m (12.39 lbf•in.), as shown in Figure 6-2. Figure 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.
RRU3268 Installation Guide 6 (Optional) Installing the Plastic Shells of the RRU Figure 6-3 Installing the plastic shells of the RRU ----End Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 7 7 Hoisting an RRU and Related Cables onto a Tower Hoisting an RRU and Related Cables onto a Tower About This Chapter This section describes the procedure for hoisting an RRU and related cables onto a tower and the precautions that must be taken. 7.1 Hoisting an RRU onto a Tower This section describes the procedures and precautions for hoisting an RRU and its mounting kits onto a tower. In tower-mounted scenario, the RRU can be installed on a pole, U-steel, or angle steel. 7.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower 7.1 Hoisting an RRU onto a Tower This section describes the procedures and precautions for hoisting an RRU and its mounting kits onto a tower. In tower-mounted scenario, the RRU can be installed on a pole, U-steel, or angle steel. Prerequisites When the RRU is used with an AC/DC power module, you need to install the AC/DC power module onto the RRU before hoisting the RRU onto a tower.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-1 Hoisting the RRU onto the tower (1) Lifting sling Issue () (2) Fixed pulley (3) Traction sling 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.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-2 Binding mounting kits for the RRU Figure 7-3 Binding the RRU (1) Handle Issue () (2) Lifting sling (3) Traction eye Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower CAUTION l The load-bearing capacity of each sling must be greater than 200 kg (441 lb) and the diameter of each sling must be less than 25 mm (0.98 in.). l When hoisting the RRU onto a tower, protect them from colliding with the tower and ground. l Hoist the RRU onto the tower before it is installed on a pole, angle steel, or U-steel. l Do not hoist any thing by the traction eye.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-5 Incorrect binding method 3. Installation engineer B pulls the lifting sling downwards, and installation engineer C pulls the traction sling outwards to protect the RRU from colliding with the tower. Step 2 Installation engineer A catches the RRU, install the RRU on the main bracket, use an inner hexagon screwdriver to tighten the captive screw into the hole of the attachment plate to 5 N·m (44.25 lbf·in.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-6 Hoisting fiber optic cables onto the tower (1) Lifting sling (2) Fixed pulley (3) Traction sling CAUTION 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. Issue () 1.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-7 Binding fiber optic cables (1) Lifting sling (2) Stretch sling (3) Traction sling CAUTION Do not remove 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. Issue () 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.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower 4. Installation engineer C pulls the lifting sling downwards, and installation engineer D pulls the traction sling outwards to protect the fiber optic cables from colliding with the tower. Step 2 Secure the fiber optic cables to the tower vertically using cable clips. Step 3 Remove the lifting sling, traction sling, and protection pipe.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-9 Hoisting power cables onto the tower (1) Lifting sling (2) Fixed pulley 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 secures three cable ties to the power cable connector, and then secures the power cable to the lifting sling, as shown in Figure 7-10.
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower 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 100 mm (3.94 in.).
RRU3268 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower Figure 7-11 Wrapping the PVC insulation tape 4. Installation engineer C pulls the lifting sling downwards, and installation engineer B pulls the other end of the lifting sling outwards to protect the power cables from colliding 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.
RRU3268 Installation Guide 8 Installing the RRU 8 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, wall, or an IFS06 . The procedure for installing the RRU varies depending on installation options. 8.1 Mounting Kits for an RRU This section describes the bracket assembly and the attachment plate for an RRU. 8.2 Installing the RRU on a Pole One or more RRUs can be installed on a pole. 8.
RRU3268 Installation Guide 8 Installing the RRU 8.1 Mounting Kits for an RRU This section describes the bracket assembly and the attachment plate for an RRU. Figure 8-1 shows the front and rear of an RRU. Figure 8-1 Front and side view of an RRU (1) Attachment plate Figure 8-2 shows the bracket assembly for an RRU.
RRU3268 Installation Guide 8 Installing the RRU 8.2 Installing the RRU on a Pole One or more RRUs can be installed on a pole. 8.2.1 Installing a Single RRU This section describes the procedure and precautions for installing a single RRU on a pole. Prerequisites Before you install an RRU on a pole 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.
RRU3268 Installation Guide 8 Installing the RRU NOTE It is recommended that the mounting brackets be installed at a height of 1200 mm (47.24 in.) to 1600 mm (62.99 in.) above the ground. Step 2 Install the RRU mounting brackets, as shown in Figure 8-4. Figure 8-4 Installing the RRU mounting brackets NOTE Verify that the arrows on the mounting brackets are pointing up. 1. Adjust the position of the nut and remove one end of the square-neck bolt from the slot on the auxiliary bracket. 2.
RRU3268 Installation Guide 8 Installing the RRU 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 Step 5 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 8-7.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-7 Securing the captive screw into the connection hole ----End 8.2.2 Installing Two RRUs This section describes the procedure and precautions for installing two RRUs on a pole. Prerequisites The hoist clamp on the main bracket is secured properly. CAUTION l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-8 Installing the first RRU onto the main bracket Step 2 Use an M6 inner hexagon screwdriver to remove the four inner hexagon screws from the second set of mounting brackets, and remove the main bracket from the auxiliary 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.
RRU3268 Installation Guide 8 Installing the RRU CAUTION The second main bracket must be installed with the opening ends of U-shaped slots on both sides facing downwards. Figure 8-10 Installing the second main bracket (1) Removed main bracket Step 4 Install the second RRU onto the main bracket, as shown in Figure 8-11. Figure 8-11 Installing the second RRU onto the main bracket Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 8 Installing the RRU CAUTION After installing each RRU on its main bracket, use an inner hexagon torque 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 8-12. Figure 8-12 Securing the captive screw into the connection hole Step 5 Install the metal sheet for neighboring RRUs, as shown in Figure 8-13.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-13 Installing the metal sheet (1) Screw (2) Metal sheet 1. Use an M6 Phillips screwdriver to loosen the screw on the metal sheet farther from the handle of the first RRU and remove the screw. 2. Use an M6 Phillips screwdriver to loosen the screw on the metal sheet closer to handle of the first RRU. Then rotate the metal sheet to align the vacant hole in the metal sheet with a hole on the top of the second RRU. 3.
RRU3268 Installation Guide 8 Installing the RRU Context A pole supports the installation of three, four, or six RRUs. The procedures for installing them are the same. Following is the procedure of installing four RRUs on a pole. Procedure Step 1 Install the two RRUs, as shown in Figure 8-14. For details, see 8.2.2 Installing Two RRUs.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-15 Removing the RRU main bracket (1) Main bracket (2) Pole installation bracket Step 3 Install the third main bracket and install the third RRU onto the third main bracket. Then use an inner hexagon torque screwdriver to tighten the captive screw into the connection holes on the top of the attachment plate and main bracket for the RRU, with a torque of 5 N·m (44.25 lbf·in.), as shown in Figure 8-16.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-16 Installing the third RRU onto the third main bracket Step 4 Install the metal sheet for neighboring RRUs, as shown in Figure 8-17. Figure 8-17 Installing the metal sheet (1) Screw 1. Issue () (2) Metal sheet Use an M6 Phillips screwdriver to loosen the screw on the metal sheet farther from the handle of the first RRU and remove the screw. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 8 Installing the RRU 2. Use an M6 Phillips screwdriver to loosen the screw on the metal sheet closer to handle of the first RRU. Then rotate the metal sheet to align the vacant hole in the metal sheet with a hole on the top of the second RRU. 3. Insert the removed screw into the hole on the top of the second RRU and use an M6 torque screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.). Step 5 At a position 80 mm (3.15 in.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-19 Installing the fourth RRU onto the fourth main bracket ----End 8.3 Installing the RRU on U-steel This section describes the procedure and precautions for installing the 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.
RRU3268 Installation Guide 8 Installing the RRU Context Figure 8-20 shows the top view of the RRU installed on U-steel. CAUTION When the width of the narrower edges of the U-steel is less than 40 mm (1.57 in.), only the a and b modes are supported. Figure 8-20 Top view of the RRU (1) U-steel Procedure Step 1 Determine a position for installing the mounting brackets. Issue () l If the RRU must be installed on U-steel secured on a tower, see 3.5.1 Clearance for a Single RRU to determine a position.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-21 Distance between the mounting brackets and the ground NOTE It is recommended that the mounting brackets be installed at a height of 1200 mm (47.24 in.) to 1600 mm (62.99 in.) above the ground. Step 2 Install the RRU mounting brackets, as shown in Figure 8-22. Figure 8-22 Installing the RRU mounting brackets NOTE Verify that the arrows on the mounting brackets are pointing up. Issue () 1.
RRU3268 Installation Guide 8 Installing the RRU 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 U-steel, as shown in Figure 8-23. CAUTION Tighten the nuts on the two square-neck bolts alternatively. After the main and auxiliary brackets are secured properly, measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-24 Installing the attachment plate onto the rear of the RRU Step 5 Install the RRU onto the main bracket, as shown in Figure 8-25. Figure 8-25 Installing the RRU onto the main bracket Step 6 Use an inner hexagon 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 8-26.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-26 Securing the captive screw into the connection hole ----End 8.4 Installing the RRU on Angle Steel This section describes the procedure and precautions for installing the 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.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-27 Top view of the RRU (1) Angle steel Procedure Step 1 Determine a position for installing the mounting brackets. l If the RRU must be installed on angle steel secured on a tower, see 3.5.1 Clearance for a Single RRU to determine a position. l If the RRU must be installed on angle steel secured on the ground, see Figure 8-28 to determine a position.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-29 Installing the RRU mounting brackets NOTE Verify that the arrows on the mounting brackets are pointing up. 1. Adjust the position of the nut and remove one end of the square-neck bolt from the slot on the auxiliary bracket. 2. Slide the mounting brackets onto the angle steel horizontally and insert the square-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.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-30 Securing the RRU mounting brackets Step 4 Use an inner hexagon 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 8-31. Figure 8-31 Installing the attachment plate onto the rear of the RRU Step 5 Install the RRU onto the main bracket, as shown in Figure 8-32.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-32 Installing the RRU onto the main bracket Step 6 Use an inner hexagon 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 8-33. Figure 8-33 Securing the captive screw into the connection hole ----End Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co.
RRU3268 Installation Guide 8 Installing the RRU 8.5 Installing the RRU on a Wall This section describes the procedure and precautions for installing the RRU on a wall. Prerequisites The hoist clamp on the main bracket is secured properly. CAUTION l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU. l Place a foam pad or cardboard under the RRU to protect the RRU housing from damage during the installation.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-34 Disassembling the mounting brackets (1) Main bracket (2) Square-neck bolt (3) Pole installation bracket (4) Auxiliary bracket (5) Flat washer (6) Spring washer (7) Nut (8) Plastic cap 1. Use an M6 inner hexagon torque screwdriver to remove the four inner hexagon screws on the pole installation bracket, and remove the main bracket from the pole installation bracket. 2.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-35 Marking anchor points (1) Level (2) Pole installation bracket (3) RRU NOTE It is recommended that the pole installation bracket be installed at a height of 1200 mm (47.24 in.) to 1600 mm (62.99 in.) above the ground. Step 3 Drill holes at the anchor points, and then insert expansion anchor bolt assemblies, as shown in Figure 8-36.
RRU3268 Installation Guide 8 Installing the RRU 1. Use a hammer drill with a Ф12 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.). CAUTION Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2. Tighten the expansion anchor bolts slightly and place one vertically into each hole. 3.
RRU3268 Installation Guide 8 Installing the RRU CAUTION Verify that the arrows on the pole installation bracket are pointing up. Step 5 Install the main bracket onto the pole installation bracket, and use an inner hexagon screwdriver to tighten four M6x16 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 8-38.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-39 Installing the attachment plate onto the rear of the RRU Step 7 Install the RRU onto the main bracket, as shown in Figure 8-40. Figure 8-40 Installing the RRU onto the main bracket Step 8 Use an inner hexagon 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 8-41.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-41 Securing the captive screw into the connection hole ----End 8.6 Installing an RRU on an IFS06 This section describes the procedure and precautions for installing an RRU on an IFS06. Prerequisites The hoist clamp on the main bracket is secured properly. CAUTION l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU.
RRU3268 Installation Guide 8 Installing the RRU NOTE For details about the operating temperature of the RRU, see section "Technical Specifications of RRUs" in 3900 Series Base Station Technical Description. l Install RRUs in the sequence from bottom to top and from left to right. l This section describes how to install an RRU in height-unrestricted scenarios. The procedure for installing an RRU in height-restricted scenarios is the same as that in heightunrestricted scenarios.
RRU3268 Installation Guide 8 Installing the RRU CAUTION Ensure that the arrows on the pole installation bracket are pointing up. l Height-restricted scenarios Use one finger to push and remove the rubber plugs on the beam and then install the pole installation bracket, as shown in Figure 8-43.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-44 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 8-45.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-45 Installing the main bracket (1) Main bracket (2) Pole installation bracket Step 4 Attach the RRU to the main bracket, and then use an inner hexagon 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 8-46. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-46 Installing the RRU onto the main bracket Step 5 Install the RRUs on the lower level from left to right, as shown in Figure 8-47. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-47 Installing RRUs on the lower level Step 6 Optional: When the ambient temperature is equal to or higher than the lowest operating 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 8-48. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 8 Installing the RRU Figure 8-48 Installing RRUs on the higher level ----End Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables 9 Installing RRU Cables About This Chapter This chapter describes the procedure for installing RRU cables. 9.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. 9.2 Cable Connections This section describes the cable connections for a single RRU and multiple RRUs. 9.3 Installation Process This section describes the process of installing RRU cables. 9.
RRU3268 Installation Guide 9 Installing RRU Cables This section describes the procedure for closing the cover plate of an RRU cabling cavity. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables 9.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. NOTE If a cable listed below is not required, skip the routing requirements of the cable. General Cabling Requirements Requirements for Bending Radius l The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.), and the bending radius of the 5/4'' feeder must be more than 380 mm (14.96 in.).
RRU3268 Installation Guide 9 Installing RRU Cables l Drip loops must be made outside the feeder window, and the requirements for the minimum bending radius are met. l When cables are routed indoors, engineers are required indoors for cooperation. l The feeder window must be waterproofed. Outdoor Cabling Requirements l Cables routed outdoors must be led through a pipe when they may be damaged. l AC power cables, transmission cables, and cables buried in the ground must be protected.
RRU3268 Installation Guide 9 Installing RRU Cables Secure cables on the tower, as shown in Figure 9-2. Figure 9-2 Securing cables on the tower Special Cabling Requirements Cabling Requirements for Power Cables Issue () l Power cables must be installed in the position specified in engineering design documents. l If the length of power cables is insufficient, replace the cables rather than adding connectors or soldering joints to lengthen the cables.
RRU3268 Installation Guide 9 Installing RRU Cables 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. l If DC power cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables.
RRU3268 Installation Guide 9 Installing RRU Cables l Fiber optic cables are used within the temperature range of -40°C to 60°C. If the current temperature is out of the range, make protection measures or route the cables again. l Cables are routed in an untangled and orderly fashion. l Do not bind fiber optic cables at turns. l Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the cables away from sharp objects.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-6 FE/GE cables routed through the cabinet l If fiber optic 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. l If fiber optic cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-7 Cable connections for a single RRU (1) PGND cable (2) RRU RF jumper (3) RRU AISG multi-wire cable (4) RRU AISG extension cable (5) RRU power cable (6) CPRI fiber optic cable (7) RRU alarm cable - - Figure 9-8 shows the cable connections for multiple RRUs. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-8 Cable connections for multiple RRUs (1) PGND cable (2) RRU RF jumper (3) RRU power cable (4) CPRI fiber optic cable - - 9.3 Installation Process This section describes the process of installing RRU cables. Figure 9-9 shows the process of installing RRU cables. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-9 Process of installing RRU cables 9.4 RRU Cable List This section describes RRU cable connections. Table 9-1 lists RRU cables. Table 9-1 RRU cables Cable RRU PGND Cable Issue () One End The Other End Connector Installation Position Connector Installation Position OT terminal (16 mm2 or 0.025 in. 2, M6) Ground terminal on the RRU OT terminal (16 mm2 or 0.025 in.
RRU3268 Installation Guide 9 Installing RRU Cables Cable RRU Power Cable One End The Other End Connector Installation Position Connector Installation Position Tool-less female connector (pressfit type) NEG(-) and RTN(+) ports on the RRU Tool-less female connector (pressfit type) One of RRU0 to RRU5 ports on the EPU or EPS One of LOAD0 to LOAD5 ports on the DCDU-11B OT terminal (3.3 mm2 or 0.005 in.
RRU3268 Installation Guide 9 Installing RRU Cables 9.5 Installing an RRU PGND Cable This section describes the procedure for installing an RRU PGND cable. Context The cross-sectional area of an RRU PGND cable is 16 mm2 (0.025 in.2). The cable has an M6 OT terminal at one end and an M8 terminal at the other end. Procedure Step 1 According to the actual cable route, cut the PGND cable into a proper length to prepare an RRU PGND cable.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-11 Correct position of an OT terminal Step 3 Label the installed cables according to the instructions in Attaching a Cable-Tying Label. ----End 9.6 Installing an RRU RF Jumper This section describes the procedure for installing an RRU RF jumper. Procedure Step 1 Connect the DIN male connector at one end of the RRU RF jumper to the ANT port on the RRU, and use a torque wrench to tighten the connector to 25 N·m (221.27 lbf·in.
RRU3268 Installation Guide 9 Installing RRU Cables 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 jumper by referring to Figure 9-13.
RRU3268 Installation Guide 9 Installing RRU Cables 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 tape to the top of the connector, first from bottom up, then from top down, and finally from bottom up.
RRU3268 Installation Guide 9 Installing RRU Cables 3. Wrap three layers of PVC insulation tape. Wrap each connector with 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. 4. Start binding cable ties to the cable at a position 3 mm (0.12 in.) to 5 mm (0.2 in.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-15 Installing an RRU AISG multi-wire cable l Issue () 3. Use an M3 Phillips screwdriver to tighten the posts on both sides of the waterproof DB9 connector to 0.4 N·m (3.54 lbf·in.). 4. Connect the other end of the cable to the standard AISG male connector on the RCU. 5. Route the cables according to the instructions in 9.1 Cabling Requirements, and then use cable ties to bind the cables. 6.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-16 Installing an RRU AISG multi-wire cable 3. Use an M3 Phillips screwdriver to tighten the posts on both sides of the waterproof DB9 connector to 0.4 N·m (3.54 lbf·in.). 4. Connect the other end of the AISG extension cable to the standard AISG male connector on the RCU, as shown in Figure 9-17. Figure 9-17 Installing an RRU AISG extension cable Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables 5. Route the cables according to the instructions in 9.1 Cabling Requirements, and then use cable ties to bind the cables. 6. Label the installed cables according to the instructions in Attaching an L-Shaped Label. ----End 9.8 Installing an RRU Alarm Cable This section describes the procedure for installing an RRU alarm cable.
RRU3268 Installation Guide 9 Installing RRU Cables Step 5 Label the installed cables according to the instructions in Attaching an L-Shaped Label. ----End 9.9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover plate of an RRU cabling cavity. 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.
RRU3268 Installation Guide 9 Installing RRU Cables NOTE Open the clip only for the associated cable. Figure 9-20 Opening clips Step 4 Remove the waterproof block. NOTE Remove only the waterproof blocks for the cables to be installed. ----End 9.10 Installing an RRU Power Cable This section describes the procedure for installing an RRU power cable. Prerequisites l An easy power receptacle (pressfit type) connector is added to the RRU power cable on the RRU side. For details, see 12.
RRU3268 Installation Guide 9 Installing RRU Cables Table 9-2 describes the power cable connections.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-21 Installing an RRU power cable CAUTION Ensure that the exposed shield layer of the power cable is properly tightened using the clip. Step 2 Connect the tool-less female connector (pressfit type) at the other end of the RRU power cable to the corresponding position on the power device. NOTE l A DCDU-11B can supply power to a maximum of six RRUs. The RRU power cables are connected to the LOAD0 to LOAD5 terminals on the DCDU-11B.
RRU3268 Installation Guide 9 Installing RRU Cables Prerequisites Before the installation, single-mode optical modules can be distinguished from multi-mode 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 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.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-23 Installing a CPRI fiber optic cable CAUTION l To avoid any damage to fiber optic cables, the cables connected to the RRU must be installed according to the installation process. For details about the installation process, see 9.3 Installation Process. Step 3 Connect the end labeled 2A and 2B of the fiber optic cable to the optical module on the BBU side. Step 4 Route the cables according to the instructions in 9.
RRU3268 Installation Guide 9 Installing RRU Cables Procedure Step 1 Close the clips for the installed cables. Use a torque screwdriver to tighten the screws on each clip to 1.4 N·m (12.39 lbf·in.), as shown in Figure 9-24. CAUTION Ensure that the exposed shield layer of the power cable is properly tightened using the clip. Figure 9-24 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity, as shown in Figure 9-25.
RRU3268 Installation Guide 9 Installing RRU Cables Figure 9-25 Correct placement of waterproof blocks Step 3 Close the cover plate of the RRU cabling cavity. Use an M5 torque screwdriver to partially tighten the screws on the cover plate in the sequence shown in Figure 9-26. Then tighten the screws to 2 N·m (17.7 lbf·in.) in the same sequence. Figure 9-26 Closing the cover plate of an RRU cabling cavity Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 9 Installing RRU Cables Step 4 Take off the ESD gloves, and pack up all the tools. ----End Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 10 Checking the RRU Hardware Installation 10 Checking the RRU Hardware Installation After an RRU is installed, check the hardware installation. Table 10-1 provides the checklist for the RRU hardware installation. Table 10-1 Checklist for the RRU hardware installation Issue () SN Item 1 The position for each device conforms to the engineering drawing and meets the space requirement. Sufficient space is reserved for equipment maintenance. 2 The RRU is securely installed.
RRU3268 Installation Guide 11 Powering On an RRU 11 Powering On an RRU After all the devices are installed, check the power-on status of an RRU. CAUTION 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 11-1 shows the RRU power-on check process. NOTE For details about how to power on an RRU, see Powering On an RRU.
RRU3268 Installation Guide 11 Powering On an RRU Figure 11-1 RRU power-on check process (a) The normal input voltage of an RRU is -48 V DC. The voltage of 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. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 12 Appendix 12 Appendix About This Chapter This section describes the procedure for adding an easy power receptacle (pressfit type) connector. 12.1 Adding a Tool-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. Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3268 Installation Guide 12 Appendix 12.1 Adding a Tool-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. Context Figure 12-1 shows the cable diagram on labels.
RRU3268 Installation Guide 12 Appendix Step 2 Strip the specified length of the sheath off the power cable, as shown in Figure 12-3. Figure 12-3 Stripping the specified length of sheath Step 3 Strip a specified length of sheath off each core wire. The length must be consistent with the length of the notch in the tool-less female connector (pressfit type), as shown in Figure 12-4.
RRU3268 Installation Guide 12 Appendix Figure 12-6 Tightening screws 2. Connect the blue core wire labeled NEG(-) to the - port and the black/brown core wire labeled RTN(+) to the + port on the tool-less female connector (pressfit type), and then tighten the screws using a Phillips screwdriver, as shown in Figure 12-7.
RRU3268 Installation Guide 12 Appendix CAUTION Each core wire is exposed outside the tool-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 Issue () Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
