RU3832&RU3632 Installation Guide Issue 05 Date 2014-06-30 HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2014. 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.
RRU3832&RRU3632 Installation Guide About This Document About This Document Purpose This document describes the process of installing DC blade RU3832 and RU3632 (referred to as RU in this document). Product Versions The following table lists the product versions related to this document for RU3832. Product Name Solution Version Product Version DBS3900 SRAN6.0 and later versions V100R004C00 and later versions RAN13.0 and later versions V200R013C00 and later versions eRAN6.
RRU3832&RRU3632 Installation Guide About This Document Organization 1 Changes in the RU3832&RU3632 Installation Guide This chapter describes the changes in the RU3832&RU3632 Installation Guide. 2 Installation Preparations This chapter describes the reference documents, tools, and instruments that must be ready before the installation. In addition, it specifies the skills and prerequisites that installation engineers must have.
RRU3832&RRU3632 Installation Guide About This Document Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol Description Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
RRU3832&RRU3632 Installation Guide About This Document Convention Description [] Items (keywords or arguments) in square brackets [ ] are optional. { x | y | ... } Alternative items are grouped in braces and separated by vertical bars. One is selected. [ x | y | ... ] Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is selected. { x | y | ... } * Alternative items are grouped in braces and separated by vertical bars.
RRU3832&RRU3632 Installation Guide Issue 05 (2014-06-30) About This Document Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide Contents Contents About This Document .................................................................................................................... ii 1 Changes in the RU3832&RU3632 Installation Guide ............................................................ 1 2 Installation Preparations ............................................................................................................. 3 2.1 Reference Documents ........................................
RRU3832&RRU3632 Installation Guide Contents 8.5 Installing the RU on a Wall ......................................................................................................................................... 71 8.6 Installing an RU on an IFS06 ..................................................................................................................................... 77 9 Installing RU Cables ...................................................................................................
RRU3832&RRU3632 Installation Guide 1 Changes in the RU3832&RU3632 Installation Guide 1 Changes in the RU3832&RU3632 Installation Guide This chapter describes the changes in the RU3832&RU3632 Installation Guide. 05 (2014-06-30) This is the fifth official release. Compared with issue 04 (2013-12-30), this issue includes the following change: Topic Change Description 3.5.1 Clearance for a Single RU Added the clearance for a single RU or multiple RUs on the bitumen ground. 3.5.
RRU3832&RRU3632 Installation Guide 1 Changes in the RU3832&RU3632 Installation Guide 03 (2013-12-23) This is the third official release. Compared with issue 02 (2013-06-26), this issue includes the following change: Topic Change Description 7.1 Hoisting an RU onto a Tower Optimized the procedure for hoisting an RU onto a Tower. Compared with issue 02 (2013-06-26), this issue does not include any new information and no information is deleted from this issue.
RRU3832&RRU3632 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.
RRU3832&RRU3632 Installation Guide 2 Installation Preparations Heat gun Phillips screwdriver (M3 to M6) Flat-head screwdriver (M3 to M6) Rubber mallet COAX crimping tool Wire stripper Utility knife Cable cutter Adjustable wrench (size ≥ 32 mm [1.26 in.]) Torque wrench Size: 16 mm (0.63 in.) and 32 mm (1.26 in.) Combination wrench Size: 16 mm (0.63 in.) and 32 mm (1.26 in.) Level Torque screwdriver Torque socket 5 mm 5 mm (M3 to M6) (M3 to M6) Multimeter Marker (diameter ≤ 10 mm [0.39 in.
RRU3832&RRU3632 Installation Guide 2 Installation Preparations 5 mm Hydraulic pliers - - 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: The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods.
RRU3832&RRU3632 Installation Guide 3 3 Information About the Installation Information About the Installation About This Chapter Before installing an RU, you must be familiar with its exterior, ports, indicators, installation options and installation clearance requirements. 3.1 RU Exterior This section describes the exterior and dimensions of an RU. 3.2 RU Ports This section describes ports on the RU panels. An RU has a bottom panel, cabling cavity panel, and indicator panel. 3.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-1 RU exterior Figure 3-2 shows RU dimensions. Figure 3-2 RU dimensions 3.2 RU Ports This section describes ports on the RU panels. An RU has a bottom panel, cabling cavity panel, and indicator panel. Figure 3-3 shows the ports on the RU panels. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-3 Ports on the RU panels Table 3-1 describes ports and indicators on the RU panels.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Item (3) Indicators Silkscreen Remarks RET Communication port for the RET antenna, supporting RET signal transmission RUN See 3.3 RU Indicators. ALM ACT VSWR CPRI0 CPRI1 The port for transmitting RET signals is determined by the software. For the RU3832, CPRI0 is connected to the BBU or an upper-level RU and CPRI1 is connected to a lower-level RU.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Product Version TX/RX Channe l Number of Used RF Ports Usage Remarks ANT_RXD combined. DBS3900 LTE V100R006C00 and later versions 2x 1T2R 4 ANT_TX/RXA and ANT_RXC are used for one sector; ANT_TX/RXB and ANT_RXD are used for the other sector. Two sectors 1x 2T2R 2 ANT_TX/RXA and ANT_TX/RXB are used together.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-4 Recommended usage of the RF ports on an RU3832 used for DBS3900 WCDMA V200R013C00 Figure 3-5 shows the recommended usage of the RF ports on an RU3832 used for DBS3900 WCDMA V200R014C00 and later versions. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-5 Recommended usage of the RF ports on an RU3832 used for DBS3900 WCDMA V200R014C00 and later versions Figure 3-6 shows the recommended usage of the RF ports on RU3832 and RU3632 used for DBS3900 LTE V100R006C00 and later versions. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-6 Recommended usage of the RF ports on RU3832 and RU3632 used for DBS3900 LTE V100R006C00 and later versions 3.3 RU Indicators This section describes six indicators on an RU. They indicate the running status. For detailed positions of RU indicators, see 3.2 RU Ports. Table 3-4 describes RU indicators.
RRU3832&RRU3632 Installation Guide Indicator ACT VSWR CPRI0 CPRI1 3 Information About the Installation Color Green Red Red or green Red or green Status Meaning Steady off No alarm is generated. Steady on The module is running properly with TX channels enabled or the software is being loaded without RU running. Blinking (on for 1s and off for 1s) The module is running properly with TX channels disabled. Steady off No Voltage Standing Wave Ratio (VSWR) alarm is generated.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Requirements for the Installation Scenarios Application scenarios: To ensure proper heat dissipation of the RU, the following requirements must be met: The RU cannot be installed in an enclosed cabinet without a cooling system. The RU cannot be installed in an enclosed camouflage box. The RU cannot be installed in an enclosed equipment room without a cooling system.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-8 Requirements for the vertical deviation angle of an RU (1) RU (2) Installation support (pole, U-steel, angle steel, or wall) Installing an RU on a Pole Figure 3-9 shows the diameter of a pole for installing an RU. Figure 3-9 Diameter of a pole The diameter of a pole for installing an RU ranges from 60 mm (2.36 in.) to 114 mm (4.49 in.). The recommended diameter is 80 mm (3.15 in.).
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-10 A single RU installed on a pole Figure 3-11 shows two RUs installed on a pole. Figure 3-11 Two RUs installed on a pole Figure 3-12, Figure 3-13, and Figure 3-14 show three or more RUs installed on a pole. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-12 Three RUs installed on a pole Figure 3-13 Four RUs installed on a pole Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-14 Six RUs installed on a pole Installing an RU on U-steel Figure 3-15 shows U-steel specifications. Figure 3-15 U-steel specifications U-steel supports the standard or reverse installation of a single RU only. Figure 3-16 shows an RU installed on U-steel. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-16 RU installed on U-steel Installing an RU on Angle Steel Figure 3-17 shows angle steel specifications. Figure 3-17 Angle steel specifications Angle steel supports the standard or reverse installation of a single RU only. Figure 3-18 shows an RU installed on angle steel. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-18 RU installed on angle steel Installing an RU on a Wall The wall for installing RUs must meet the following requirements: For each RU, the wall must be able to bear a weight four times the RU's weight and the bolts' pulling force of 1.25 kN (281.25 lbf) vertical to the wall. Expansion anchor bolts must be tightened to 30 N·m (265.52 lbf·in.) so that the bolts stay secured without damaging the wall.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-20 RU installed on a wall Installing an RU on an IFS06 In an IFS06 scenario: The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of RUs. The IFS06 supports at least three RUs when the ambient temperature is higher than or equal to the lowest operating temperature of the RU and at least 5°C (41°F) lower than the highest operating temperature of the RU.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-21 Correct installation of mounting brackets for RUs installed on an IFS06 Figure 3-22 and Figure 3-23 show RUs installed on an IFS06. Figure 3-22 Three RUs installed on an IFS06 (1) Height-restricted scenario Issue 05 (2014-06-30) (2) Height-unrestricted scenario Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-23 Six RUs installed on an IFS06 (1) Height-restricted scenario (2) Height-unrestricted scenario 3.5 Installation Clearance Requirements of an RU This section describes the requirements for the installation clearance of a single RU and multiple RUs and the requirements for the installation spacing between RUs. 3.5.1 Clearance for a Single RU This section describes the recommended and minimum clearance for a single RU.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation If an RU is installed on the bitumen ground, the RU must be at least 500 mm (700 mm or more as recommended) away from the bitumen ground. The following describes the space requirements for installing a single RU on the non-bitumen ground. The recommended clearance ensures normal running and provides an appropriate space for operation and maintenance (OM).
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-24 Clearance for a single RU in standard or reverse mode Clearance for a Single RU in Side-Mounted Mode Figure 3-25 shows the clearance for a single RU in side-mounted mode. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-25 Clearance for a single RU in side-mounted mode Clearance for a Single Tower-mounted RU Figure 3-26 and Figure 3-27 show the clearance for a single tower-mounted RU in standard or reverse mode and in side-mounted mode, respectively. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-26 Minimum clearance for a single tower-mounted RU in standard or reverse mode Figure 3-27 Minimum clearance for a single tower-mounted RU in side-mounted mode 3.5.2 Clearances for Three or More RUs This section describes the recommended and minimum clearances for three or more RUs. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation If an RU is installed on the bitumen ground, the RU must be at least 500 mm (700 mm or more as recommended) away from the bitumen ground. The following describes the space requirements for installing multiple RUs on the non-bitumen ground. The recommended clearances ensure normal running and provide an appropriate space for operation and maintenance (OM). If there is sufficient space, retain the recommended clearances.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-29 Minimum clearances for three or more RUs installed on a pole Recommended Clearances for Three or More RUs Installed on a Wall in Standard Mode Figure 3-30 shows the recommended clearances for multiple RUs installed on a wall in standard mode.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Minimum Clearances for Three or More RUs Installed on a Wall in Standard Mode Figure 3-31 shows the minimum clearances for three or more RUs installed on a wall in standard mode.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-32 Recommended clearances for three or more RUs installed on a wall in side-mounted mode 3.5.3 Installation Spacing Between RUs This section describes the horizontal and vertical spacing between RUs. Recommended Horizontal Spacing Between RUs Figure 3-33 shows the recommended horizontal spacing between RUs.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-34 Minimum horizontal spacing between RUs Recommended Vertical Spacing Between RUs Figure 3-35 shows the recommended vertical spacing between RUs. Figure 3-35 Recommended vertical spacing between RUs Minimum Vertical Spacing Between RUs Figure 3-36 shows the minimum vertical spacing between RUs. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 3 Information About the Installation Figure 3-36 Minimum vertical spacing between RUs Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 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 When transporting, moving, or installing the equipment, components, or parts, you must: Prevent them from colliding with doors, walls, shelves, or other objects.
RRU3832&RRU3632 Installation Guide 4 Unpacking the Equipment Step 3 Check the type and quantity of the equipment in the cases according to the packing list. If ... Then ... Types and quantity of the article tally with those on the packing list Sign the Packing List with the customer. Either shipment shortage, wrong shipment or damaged articles. Report to the local Huawei office.
RRU3832&RRU3632 Installation Guide 5 Installation Process 5 Installation Process The installation process involves installing an RU and RU cables, checking the RU hardware installation, and powering on the RU. Figure 5-1 shows the process of installing an RU. Figure 5-1 Process of installing an RU Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 6 6 (Optional) Installing the Plastic Shells of the RU (Optional) Installing the Plastic Shells of the RU This section describes the procedure for installing the plastic shells of the RU. Context An RU 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 RU and remove the metal sheet, as shown in Figure 6-1.
RRU3832&RRU3632 Installation Guide 6 (Optional) Installing the Plastic Shells of the RU Step 2 Install a buckle on each side at the bottom of the RU, 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 RU and use an M6 hex key wrench to tighten the screws to 2.8 N·m (24.78 lbf·in.), as shown in Figure 6-3.
RRU3832&RRU3632 Installation Guide 7 7 Hoisting an RU and Related Cables onto a Tower Hoisting an RU and Related Cables onto a Tower About This Chapter This section describes the procedure for hoisting an RU and related cables onto a tower and the precautions that must be taken. 7.1 Hoisting an RU onto a Tower This section describes the procedures and precautions for hoisting an RU and its mounting kits onto a tower. In tower-mounted scenarios, the RU can be installed on a pole, U-steel, or angle steel.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower Place a foam pad or cardboard on the ground to protect the housing of the RU from damage before the binding. Do not stand the RU upright because the RF ports cannot support the weight of the RU. The routing and protection of power cables should follow the local safety regulations, industry standards, and enterprise standards of the operator.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower Figure 7-2 Binding the RU (1) Handle (2) Lifting sling (3) Traction eye (4) Traction sling Figure 7-3 Incorrect binding method (1) Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower Figure 7-4 Incorrect binding method (2) Step 6 Hoist the RU onto the tower, as shown in Figure 7-5. Technician B pulls the lifting sling downwards, and technician C pulls the traction sling outwards to protect the RU from colliding with the tower. Figure 7-5 Hoisting the RU onto the tower (1) Lifting sling Issue 05 (2014-06-30) (2) Fixed pulley Huawei Proprietary and Confidential Copyright © Huawei Technologies Co.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower 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.). When hoisting each device onto a tower, protect them from colliding with the tower. Hoist the RU onto the tower before it is installed on a pole, angle steel, or U-steel. Do not hoist any thing by the traction eye.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU 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 Before hoisting fiber optic cables onto the tower, connect the fiber optic cables to the RU or BBU based on the labels on both ends of the cables and determine the hoisting direction. 1.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower Figure 7-7 Binding fiber optic cables (1) Lifting sling (2) Stretch sling (3) Traction sling 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. 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. 4.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a 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. The procedure for hoisting the fiber optic cables onto the tower is for your reference only. ----End 7.3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU and Related Cables onto a Tower 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. The connector on the power cable in the figure is only an example.
RRU3832&RRU3632 Installation Guide 7 Hoisting an RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 8 Installing the RU About This Chapter This chapter describes the procedure for installing the RU. The procedure for installing the RU varies depending on installation options. 8.1 Mounting Kits for an RU This section describes the bracket assembly and the attachment plate for an RU. 8.2 Installing the RU on a Pole One or more RUs can be installed on a pole. 8.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-1 Front and side view of an RU (1) Front view (2) Side view Figure 8-2 shows the bracket assembly for an RU.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 8.2 Installing the RU on a Pole One or more RUs can be installed on a pole. 8.2.1 Installing a Single RU This section describes the procedure and precautions for installing a single RU on a pole. Prerequisites Before you install an RU on a pole secured on a tower, the RU and its mounting brackets are hoisted onto the tower. For details, see 7.1 Hoisting an RU onto a Tower. The hoist clamp on the main bracket is secured properly.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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 RU mounting brackets, as shown in Figure 8-4. Figure 8-4 Installing the RU mounting brackets 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-5 Securing the RU mounting brackets Step 4 Install the RU onto the main bracket, as shown in Figure 8-6. Figure 8-6 Installing the RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-7 Securing the captive screw into the connection hole ----End 8.2.2 Installing Two RUs This section describes the procedure and precautions for installing two RUs on a pole. Prerequisites The hoist clamp on the main bracket is secured properly. Do not stand the RU upright because the RF ports cannot support the weight of the RU.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-8 Installing the first RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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 RU onto the main bracket, as shown in Figure 8-11. Figure 8-11 Installing the second RU onto the main bracket Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 8 Installing the RU After installing each RU 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 RUs, as shown in Figure 8-13.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 2. Use an M6 Phillips screwdriver to loosen the screw on the metal sheet closer to handle of the second RU. Then rotate the metal sheet to align the vacant hole in the metal sheet with a hole on the top of the first RU. 3. Insert the removed screw into the hole on the top of the first RU and use an M6 torque screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.). ----End 8.2.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-14 Two RUs installed on a pole 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 8-15. Figure 8-15 Removing the RU main bracket (1) Main bracket (2) Pole installation bracket Step 3 Install the third main bracket and install the third RU onto the third main bracket.
RRU3832&RRU3632 Installation Guide 8 Installing the RU The third main bracket must be installed with the opening ends of U-shaped slots on both sides facing downwards. Figure 8-16 Installing the third RU onto the third main bracket Step 4 Install the metal sheet for neighboring RUs, as shown in Figure 8-17. Figure 8-17 Installing the metal sheet (1) Screw 1.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 2. Use an M6 Phillips screwdriver to loosen the screw on the metal sheet closer to handle of the first RU. Then rotate the metal sheet to align the vacant hole in the metal sheet with a hole on the top of the third RU. 3. Insert the removed screw into the hole on the top of the third RU and use an M6 torque screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.).
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-19 Installing the fourth RU onto the fourth main bracket ----End 8.3 Installing the RU on U-steel This section describes the procedure and precautions for installing the RU on U-steel. An RU can be installed on U-steel secured on the ground or a tower. Each piece of U-steel allows only one RU to be installed in standard or reverse mode.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Do not stand the RU upright because the RF ports cannot support the weight of the RU. Place a foam pad or cardboard under the RU to protect the RU housing from damage during the installation. Context Figure 8-20 shows the top view of the RU installed on U-steel. 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-21 Distance between the mounting brackets and the ground 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 RU mounting brackets, as shown in Figure 8-22. Figure 8-22 Installing the RU mounting brackets Verify that the arrows on the mounting brackets are pointing up. 1.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-25 Installing the RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 8.4 Installing the RU on Angle Steel This section describes the procedure and precautions for installing the RU on angle steel. An RU can be installed on angle steel secured on the ground or a tower. Each piece of angle steel allows only one RU to be installed in standard or reverse mode. Prerequisites Before you install an RU on angle steel secured on a tower, the RU and its mounting brackets are hoisted onto the tower. For details, see 7.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-28 Distance between the mounting brackets and the ground 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 RU mounting brackets, as shown in Figure 8-29. Figure 8-29 Installing the RU mounting brackets Verify that the arrows on the mounting brackets are pointing up. 1.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-32 Installing the RU 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 8.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Prerequisites The hoist clamp on the main bracket is secured properly. Do not stand the RU upright because the RF ports cannot support the weight of the RU. Place a foam pad or cardboard under the RU to protect the RU housing from damage during the installation.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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. Use an M10 torque wrench to loosen the nuts on the two square-neck bolts, and remove the plastic cap, nuts, spring washers, flat washers, square-neck bolts, and pole installation bracket from the auxiliary bracket.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-36 Drilling a hole and inserting expansion anchor bolt assemblies (1) M10x80 bolt 1. (2) Nut (3) Spring washer (4) Flat washer (5) Expansion tube 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.). Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-37 Installing the pole installation bracket on the expansion anchor bolts 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU (1) Main bracket (2) Pole installation bracket Step 6 Use an inner hexagon screwdriver to remove the attachment plate from one side of the RU, reinstall the attachment plate onto the rear of the RU, and tighten the four stainless screws to 5 N·m (44.25 lbf·in.), as shown in Figure 8-39. Figure 8-39 Installing the attachment plate onto the rear of the RU Step 7 Install the RU onto the main bracket, as shown in Figure 8-40.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-41 Securing the captive screw into the connection hole ----End 8.6 Installing an RU on an IFS06 This section describes the procedure and precautions for installing an RU on an IFS06. Prerequisites The hoist clamp on the main bracket is secured properly. Do not stand the RU upright because the RF ports cannot support the weight of the RU.
RRU3832&RRU3632 Installation Guide 8 Installing the RU For details about the operating temperature of the RU, see section "Technical Specifications of RUs" in 3900 Series Base Station Technical Description. Install RUs in the sequence from bottom to top and from left to right. This section describes how to install an RU in height-unrestricted scenarios. The procedure for installing an RU in height-restricted scenarios is the same as that in height-unrestricted scenarios.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Ensure that the arrows on the pole installation bracket are pointing up. 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU 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.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Step 4 Attach the RU 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. Figure 8-46 Installing the RU onto the main bracket Step 5 Install the RUs on the lower level from left to right, as shown in Figure 8-47.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-47 Installing RUs on the lower level Step 6 Optional: When the ambient temperature is equal to or higher than the lowest operating temperature of the RU and at least 10°C (10°F) lower than the highest operating temperature of the RU, repeat the preceding steps to install the RUs on the higher level, as shown in Figure 8-48. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 8 Installing the RU Figure 8-48 Installing RUs on the higher level ----End Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables 9 Installing RU Cables About This Chapter This chapter describes the procedure for installing RU 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 RU and multiple RUs. 9.3 Installation Process This section describes the process of installing RU cables. 9.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables 9.11 Installing a CPRI Fiber Optic Cable This section describes the procedure for installing a CPRI fiber optic cable. 9.12 Closing the Cover Plate of an RU Cabling Cavity This section describes the procedure for closing the cover plate of an RU cabling cavity. 9.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Cables must be routed away from heat sources, or heat-insulation materials are added between cables and heat sources. Sufficient slack (recommended for about 0.1 m [0.33 ft]) is provided in cables at turns or the position close to a device, facilitating cable and device maintenance. Indoor Cabling Requirements Cables are routed indoors through the feeder window.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-1 Securing cables on the cable tray Secure cables on the tower, as shown in Figure 9-2. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-2 Securing cables on the tower Special Cabling Requirements Cabling Requirements for Power Cables Power cables must be installed in the position specified in engineering design documents. If the length of power cables is insufficient, replace the cables rather than adding connectors or soldering joints to lengthen the cables. Cables must be routed by only qualified and trained personnel before all preparations are made.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables 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. Cabling Requirements for PGND Cables PGND cables for the base station must be connected to the same ground bar. PGND cables must be buried in the ground or routed indoors.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the cables away from sharp objects. When fiber optic cables are routed, the excess of the cables must be coiled around special devices, such as a fiber coiler. An unarmored fiber optic cable must be bound using binding straps.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-6 CPRI fiber optic cables routed through the cabinet (2) Figure 9-7 FE/GE cables routed through the cabinet 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. 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.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-8 Cable connections for a single RU (1) PGND cable (2) RU RF jumper (3) RU AISG multi-wire cable (4) RU AISG extension cable (5) RU power cable (6) CPRI fiber optic cable (7) RU alarm cable - - Figure 9-9 shows the cable connections for multiple RUs. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-9 Cable connections for multiple RUs (1) PGND cable (2) RU RF jumper (3) RU power cable (4) CPRI fiber optic cable - - 9.3 Installation Process This section describes the process of installing RU cables. Figure 9-10 shows the process of installing RU cables. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-10 Process of installing RU cables 9.4 RU Cable List This section describes RU cable connections. Table 9-1 lists RU cables. Table 9-1 RU cables Cable One End The Other End Connector Installation Position Connector Installation Position RU PGND Cable OT terminal (M6, 16 mm2 or 0.025 in.2) Ground terminal on the RU OT terminal (M8, 16 mm2 or 0.025 in.
RRU3832&RRU3632 Installation Guide Cable 9 Installing RU Cables One End Connector The Other End Installation Position Connector Installation Position CPRI0 port on the RU DLC connector CPRI port on a board in the BBU or CPRI1 port on the upper-level RU connector CPRI Fiber Optic Cable(RU38 32) DLC connector CPRI1 port on the RU CPRI0 port on the lower-level RU CPRI Fiber Optic Cable(RU36 32) DLC connector CPRI0 port on the RU DLC connector CPRI port on a board in the BBU RU RF Jumper DIN
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Procedure Step 1 According to the actual cable route, cut the PGND cable into a proper length to prepare an RU PGND cable. Then add an OT terminal at each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. Step 2 Install the RU PGND cable.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables 9.6 Installing an RU RF Jumper This section describes the procedure for installing an RU RF jumper. Procedure Step 1 Connect the DIN male connector at one end of the RU RF jumper to the ANT port on the RU, and use a torque wrench to tighten the connector to 25 N·m (221.27 lbf·in.), as shown in Figure 9-13.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-14 Waterproofing a connector of the RF jumper (1) Waterproof tape (2) PVC insulation tape Before wrapping waterproof tape, stretch the tape evenly until the length of the tape becomes twice its original length. Do not stretch the PVC insulation tape when wrapping the PVC insulation tape.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-15 Waterproofing a dustproof cap (1) Dustproof cap (2) Waterproof tape (3) PVC insulation tape Before wrapping waterproof tape, stretch the tape evenly until the length of the tape becomes twice its original length. Do not stretch the PVC insulation tape when wrapping the PVC insulation tape.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables 9.7 Installing an RU AISG Multi-Wire Cable and AISG Extension Cable This section describes the procedures for installing an RU AISG multi-wire cable and AISG extension cable. Context When the distance between an RU 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 RU and the RCU. In this case, an AISG extension cable is used to extend the AISG multi-wire cable.
RRU3832&RRU3632 Installation Guide 2. 9 Installing RU Cables Link the waterproofed DB9 connector at one end of the AISG multi-wire cable to the RET port on the RU bottom, and link the other end to the standard AISG male connector of the AISG extension cable, as shown in Figure 9-17. Figure 9-17 Installing an RU 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.
RRU3832&RRU3632 Installation Guide 9 Installing RU 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 RU Alarm Cable This section describes the procedure for installing an RU alarm cable.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-20 Method for handling cord end terminals that are not in use Step 5 Route the cables according to the instructions in 9.1 Cabling Requirements, and then use cable ties to bind the cables. Step 6 Label the installed cables according to the instructions in Attaching an L-Shaped Label. ----End 9.9 Opening the Cover Plate of an RU Cabling Cavity This section describes the procedure for opening the cover plate of an RU cabling cavity.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-21 Opening the cover plate of the RU cabling cavity (1) Cover plate (2) Cabling cavity (3) Clip (4) Cable trough for the power cable (5) Waterproof block (6) Cable trough for the fiber optic cable Step 3 Loosen the screws on the clip using an M4 Phillips screwdriver, and open the clip, as shown Figure 9-22. Open the clip only for the associated cable.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Step 4 Remove the waterproof block. Remove only the waterproof blocks for the cables to be installed. ----End 9.10 Installing an RU Power Cable This section describes the procedure for installing an RU power cable. Prerequisites A tool-less female connector (pressfit type) is added to the RU power cable on the RU side. For details, see 12.1 Adding a Tool-Less Female Connector (Pressfit Type) to the RU Power Cable on the RU Side.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Ensure that the RU power cable must be connected to the RU first and then to the power device. The operations in the reverse sequence may cause component damage or personal injury. Procedure Step 1 Connect the tool-less female connector (pressfit type) at one end of the RU power cable to the power supply socket on the RU, as shown in Figure 9-23.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Step 3 Route the cable according to the instructions in 9.1 Cabling Requirements, and then use a cable tie to bind the cable. Step 4 Label the installed cable according to the instructions in Attaching a Cable-Tying Label. ----End 9.11 Installing a CPRI Fiber Optic Cable This section describes the procedure for installing a CPRI fiber optic cable.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-24 Installing an optical module The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal. Therefore, you must insert an fiber optic cable into an unpacked optical module within 20 minutes. Step 2 Connect the end labeled 1A and 1B of the fiber optic cable to the optical module on the RU side, as shown in Figure 9-25.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-25 Installing a CPRI fiber optic cable To avoid any damage to fiber optic cables, the cables connected to the RU 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.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Procedure Step 1 Close the clips for the installed cables. Use an M4 torque screwdriver to tighten the screws on each clip to 1.4 N·m (12.39 lbf·in.), as shown in Figure 9-26. Ensure that the exposed shield layer of the power cable is properly tightened using the clip. Figure 9-26 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity, as shown in Figure 9-27.
RRU3832&RRU3632 Installation Guide 9 Installing RU Cables Figure 9-27 Correct placement of waterproof blocks Step 3 Close the cover plate of the RU cabling cavity. Use an M5 torque screwdriver to partially tighten the screws on the cover plate in the sequence shown in Figure 9-28. Then tighten the screws to 2 N·m (17.7 lbf·in.) in the same sequence. Figure 9-28 Closing the cover plate of an RU cabling cavity Step 4 Take off the ESD gloves, and pack up all the tools.
RRU3832&RRU3632 Installation Guide 10 Checking the RU Hardware Installation 10 Checking the RU Hardware Installation After an RU is installed, check the hardware installation. Table 10-1 provides the checklist for the RU hardware installation. Table 10-1 Checklist for the RU hardware installation 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 RU is securely installed.
RRU3832&RRU3632 Installation Guide 11 Powering On an RU 11 Powering On an RU After all the devices are installed, check the power-on status of an RU. After you unpack an RU, you must power on it within 24 hours. If you power off the RU for maintenance, you must restore power to the RU within 24 hours. Figure 11-1 shows the RU power-on check process. For details about how to power on an RU, see Powering On an RU.
RRU3832&RRU3632 Installation Guide 11 Powering On an RU Figure 11-1 RU power-on check process (a) The normal input voltage of an RU 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 RU is on for 1s and off for 1s. The ALM indicator is steady off. Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RRU3832&RRU3632 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 RU Power Cable on the RU Side This section describes the procedure for adding a tool-less female connector (pressfit type) to the RU power cable on the RU side. 12.
RRU3832&RRU3632 Installation Guide 12 Appendix Figure 12-1 Cable diagram on labels (1) Cable diagram on labels Procedure Step 1 Determine the length of the power cable for different operations based on the labels, as shown in Figure 12-2. Figure 12-2 Determining the length of the power cable 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.
RRU3832&RRU3632 Installation Guide 12 Appendix Figure 12-4 Stripping the sheath off each core wire Figure 12-5 Matched length Step 4 Add a tool-less female connector (pressfit type) to two core wires. 1. Tighten the screws using a Phillips screwdriver, as shown in Figure 12-6. Figure 12-6 Tightening screws 2.
RRU3832&RRU3632 Installation Guide 12 Appendix Figure 12-7 Adding a tool-less female connector (pressfit type) to two core wires Step 5 Strip the specified length of the sheath off the power cable to expose the intact shield layer, as shown in Figure 12-8. Figure 12-8 Stripping the sheath off the power cable 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.
RRU3832&RRU3632 Installation Guide 12 Appendix Figure 12-9 Inserting core wires into the tool-less female connector (pressfit type) ----End Issue 05 (2014-06-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
