DBS3900 IBS V100R001C02 DRH3985A&3917A&3919A Installation Guide Issue Draft A Date 2013-09-16 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.
DRH3985A&3917A&3919A Installation Guide About This Document About This Document Purpose This document describes the process of installing DC DRH3985A, DRH3917A and DRH3919A (referred to as DRH in this document). Product Version The following table lists the product version related to this document for DRH3985A, DRH3917A and DRH3919A.
DRH3985A&3917A&3919A 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 a DRH and DRH cables, checking the DRH hardware installation, and powering on the DRH. 6 Installing the DRH This chapter describes the procedure for installing the DRH. The DRH can be installed on a pole, U-steel, angle steel, wall, or an IFS06.
DRH3985A&3917A&3919A Installation Guide About This Document General Conventions Convention Description Times New Roman Normal paragraphs are in Times New Roman. Boldface Names of files, directories, folders, and users are in boldface. For example, log in as user root. Italic Book titles are in italics. Courier New Terminal display is in Courier New. Command Conventions Convention Description Boldface The keywords of a command line are in boldface. Italic Command arguments are in italics.
DRH3985A&3917A&3919A Installation Guide About This Document Format Description Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently. Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn. Mouse Operation Action Description Click Select and release the primary mouse button without moving the pointer.
DRH3985A&3917A&3919A Installation Guide Contents Contents About This Document .................................................................................................................... ii 1 Changes in the DRH3985A &3917A&3919A Installation Guide ......................................... 1 2 Installation Preparations ............................................................................................................. 2 2.1 Reference Documents ..............................................
DRH3985A&3917A&3919A Installation Guide Contents 7.2 Cable Connections ...................................................................................................................................................... 66 7.3 Installation Process ..................................................................................................................................................... 68 7.4 DRH Cable List ........................................................................................
DRH3985A&3917A&3919A Installation Guide 1 Changes in the DRH3985A &3917A&3919A Installation Guide 1 Changes in the DRH3985A &3917A&3919A Installation Guide This chapter describes the changes in the DRH3985A&3917A&3919A Installation Guide. Draft A (2013-09-16) This is a draft. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd..
DRH3985A&3917A&3919A 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.
DRH3985A&3917A&3919A 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.
DRH3985A&3917A&3919A 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: The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods.
DRH3985A&3917A&3919A Installation Guide 3 3 Information About the Installation Information About the Installation About This Chapter Before installing a DRH, you must be familiar with its exterior, ports, indicators, installation options and installation clearance requirements. 3.1 DRH Exterior This section describes the exterior and dimensions of a DRH. 3.2 DRH Ports This section describes ports on the DRH panels. A DRH has a bottom panel, cabling cavity panel, and indicator panel. 3.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-1 DRH exterior Figure 3-2 shows DRH dimensions. Figure 3-2 DRH dimensions 3.2 DRH Ports This section describes ports on the DRH panels. A DRH has a bottom panel, cabling cavity panel, and indicator panel. Figure 3-3 shows the ports on the DRH panels. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-3 Ports on the DRH panels Table 3-1 describes ports and indicators on the DRH panels. Table 3-1 Ports and indicators on the DRH panels Item Silkscreen Description (1) Ports at the bottom ANT_TX/RXA TX/RX port A ANT_TX/RXB TX/RX port B ANT_TX/RXC Unused on the DRH ANT_TX/RXD Unused on the DRH Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Item (2) Ports in the cabling cavity Silkscreen Description RX_IN/OUT Unused on the DRH RET Unused on the DRH RTN(+) Power supply socket NEG(-) (3) Indicators CPRI0 Optical/electrical port 0 CPRI1 Optical/electrical port 1 EXT_ALM Alarm monitoring port used for monitoring one RS485 signal and two dry contact signals RUN See 3.3 DRH Indicators.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-4 Usage of the RF ports 3.3 DRH Indicators This section describes six indicators on a DRH. They indicate the running status. For detailed positions of DRH indicators, see 3.2 DRH Ports. Table 3-3 describes DRH indicators. Table 3-3 DRH indicators Indicator Color Status Meaning RUN Green Steady on There is power supply, but the module is faulty. Steady off There is no power supply, or the module is faulty.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Indicator Color Status Meaning ACT Green Steady on The module is running properly with TX channels enabled or the software is being loaded without DRH 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. Blinking (on for 1s and off for 1s) VSWR alarms are generated on the ANT_TX/RXB port.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Requirements for the Installation Scenarios Method of installation: To ensure the heat dissipation of the DRH and waterproofing of the ports at the bottom of the DRH, the vertical deviation angle of a DRH must be less than or equal to 10 degrees, as shown in Figure 3-5. U-steel and angle steel support the standard or reverse installation of a single DRH only.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation The diameter of a pole for installing a DRH ranges from 60 mm (2.36 in.) to 114 mm (4.49 in.). The recommended diameter is 80 mm (3.15 in.). When the diameter of a pole ranges from 60 mm (2.36 in.) to 76 mm (2.99 in.), a maximum of three DRHs can be installed on the pole. Only a pole whose diameter ranges from 76 mm (2.99 in.) to 114 mm (4.49 in.) supports more than three DRHs.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-8 Two DRHs installed on a pole Figure 3-9, Figure 3-10, and Figure 3-11 show three or more DRHs installed on a pole. Figure 3-9 Three DRHs installed on a pole Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-10 Four DRHs installed on a pole Figure 3-11 Six DRHs installed on a pole Installing a DRH on U-steel Figure 3-12 shows U-steel specifications. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-12 U-steel specifications It is recommended that only one DRH be installed on one U-steel. Figure 3-13 shows a DRH installed on U-steel. Figure 3-13 DRH installed on U-steel Installing a DRH on Angle Steel Figure 3-14 shows angle steel specifications. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-14 Angle steel specifications It is recommended that only one DRH be installed on one angle steel. Figure 3-15 shows a DRH installed on angle steel. Figure 3-15 DRH installed on angle steel Installing a DRH on a Wall The wall for installing DRHs must meet the following requirements: For each DRH, the wall must be able to bear a weight four times the DRH's weight and the bolts' pulling force of 1.25 kN (281.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation The mounting brackets for multiple DRHs cannot be combined when the DRHs are installed on a wall in side-mounted mode, as shown in Figure 3-16. Figure 3-16 Correct installation of mounting brackets for multiple DRHs Figure 3-17 shows a DRH installed on a wall.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation The mounting brackets for multiple DRHs cannot be combined when the DRHs are installed on an IFS06, as shown in Figure 3-16. Figure 3-18 and Figure 3-19 show DRHs installed on an IFS06. Figure 3-18 Three DRHs installed on an IFS06 (1) Height-restricted scenario Issue Draft A (2013-09-16) (2) Height-unrestricted scenario Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-19 Six DRHs installed on an IFS06 (1) Height-restricted scenario (2) Height-unrestricted scenario 3.5 Installation Clearance Requirements of a DRH This section describes the requirements for the installation clearance of a single DRH and multiple DRHs and the requirements for the installation spacing between DRHs. 3.5.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation 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. 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.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-21 Minimum clearance for a single DRH 3.5.2 Clearances for Three or More DRHs This section describes the recommended and minimum clearances for three or more DRHs. 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.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-22 Recommended clearances for three or more DRHs installed on a pole Minimum Clearances for Three or More DRHs Installed on a Pole Figure 3-23 shows the minimum clearances for multiple DRHs installed in centralized mode. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-23 Minimum clearances for three or more DRHs installed on a pole Recommended Clearances for Three or More DRHs Installed on a Wall in Standard Mode Figure 3-24 shows the recommended clearances for multiple DRHs installed on a wall in standard mode.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Minimum Clearances for Three or More DRHs Installed on a Wall in Standard Mode Figure 3-25 shows the minimum clearances for three or more DRHs installed on a wall in standard mode.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation 3.5.3 Installation Spacing Between DRHs This section describes the horizontal and vertical spacing between DRHs. Recommended Horizontal Spacing Between DRHs Figure 3-27 shows the recommended horizontal spacing between DRHs. Figure 3-27 Recommended horizontal spacing between DRHs Minimum Horizontal Spacing Between DRHs Figure 3-28 shows the minimum horizontal spacing between DRHs.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-29 Recommended vertical spacing between DRHs Minimum Vertical Spacing Between DRHs Figure 3-30 shows the minimum vertical spacing between DRHs. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 3 Information About the Installation Figure 3-30 Minimum vertical spacing between DRHs Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A 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.
DRH3985A&3917A&3919A Installation Guide 4 Unpacking the Equipment 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.
DRH3985A&3917A&3919A Installation Guide 5 Installation Process 5 Installation Process The installation process involves installing a DRH and DRH cables, checking the DRH hardware installation, and powering on the DRH. Figure 5-1 shows the process of installing a DRH. Figure 5-1 Process of installing a DRH Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH 6 Installing the DRH About This Chapter This chapter describes the procedure for installing the DRH. The DRH can be installed on a pole, U-steel, angle steel, wall, or an IFS06. The procedure for installing the DRH varies depending on installation options. 6.1 Mounting Kits for a DRH This section describes the bracket assembly and the attachment plate for a DRH. 6.2 Installing the DRH on a Pole One or more DRHs can be installed on a pole. 6.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-1 Front and rear view of a DRH (1) Cover plate (2) Attachment plate Figure 6-2 shows the bracket assembly for a DRH. Figure 6-2 Common DRH mounting kit (1) Plastic cap (2) Standard M10 nut (3) Spring washer (4) Thick flat washer (5) M10x150 bolt (6) Auxiliary bracket (7) Hoist clamp on the main bracket (8) Main bracket 6.2 Installing the DRH on a Pole One or more DRHs can be installed on a pole. 6.2.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Do not stand the DRH upright because the RF ports cannot support the weight of the DRH. Place a foam pad or cardboard under the DRH to protect the DRH housing from damage during the installation. Procedure Step 1 Determine a position for installing the mounting bracket. If the DRH must be installed on a pole secured on the ground, see Figure 6-3 to determine a position.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-5 Sliding the main and auxiliary brackets onto the pole Ensure that the arrows on the main bracket are pointing up. Step 4 Use a 16 mm (0.63 in.) torque wrench to tighten the two M10 nuts to 40 N·m (354.03 lbf·in.) so that the main and auxiliary brackets are tightly secured onto the pole, as shown in Figure 6-6. Tighten the nuts on the two bolts alternatively.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-6 Securing the main and auxiliary brackets onto the pole (1) Plastic cap Step 5 Optional: If a DRH is to be installed in side-mounted mode, interchange the attachment plate and stainless steel screws at the rear of the DRH with the cover plate and plastic screws on one side of the DRH, as shown in Figure 6-7. Figure 6-7 Interchanging the attachment plate at the rear of the DRH with the cover plate on one side of the DRH 1.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH 4. Install the cover plate onto the rear of the DRH. 5. Install the attachment plate onto the side of the DRH, and use a torque screwdriver to tighten the stainless steel screws on the attachment plate to 5 N·m (44.25 lbf·in.). Step 6 Install the DRH onto the main bracket, as shown in Figure 6-8. This section describes the standard installation of a DRH. The method is similar for side-mounted installation.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Do not stand the DRH upright because the RF ports cannot support the weight of the DRH. Place a foam pad or cardboard under the DRH to protect the DRH housing from damage during the installation. Procedure Installing two DRHs next to each other at the same level (recommended) 1. Install one pair of main and auxiliary brackets on a pole. For details, see 6.2.1 Installing a Single DRH. 2.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-10 Installing the first DRH onto the main bracket 4. Install the second main bracket on one side of the first main bracket, as shown in Figure 6-11. Figure 6-11 Installing the second main bracket 5. Install the second DRH on the second main bracket, as shown in Figure 6-12. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-12 Installing the second DRH onto the second main bracket Installing two DRHs independently 1. Install the first DRH onto the main bracket, as shown in Figure 6-13. For details, see 6.2.1 Installing a Single DRH. Figure 6-13 Installing the first DRH onto the main bracket 2.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-14 Installing the second set of DRH mounting brackets 3. Interchange the cover plate and plastic screws on the front of the second DRH with the attachment plate and stainless steel screws at the rear of the second DRH, as shown in Figure 6-15.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH (b) Remove the cover plate from the front of the DRH, and use a Phillips screwdriver to remove the plastic screws from the DRH. (c) Install the plastic screws to the rear of the DRH, and use a torque screwdriver to tighten the screws to 0.25 N·m (2.21 lbf·in.). (d) Install the cover plate onto the rear of the DRH.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH 6.2.3 Installing Three or More DRHs The section describes the procedure and precautions for installing three or more DRHs on a pole. Before installing three or more DRHs together on a pole, move the attachment plates from the front of the DRHs to the side of the DRHs. Prerequisites The hoist clamp on the main bracket is secured properly. Do not stand the DRH upright because the RF ports cannot support the weight of the DRH.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-18 Interchanging the attachment plate at the rear of the DRH with the cover plate on one side of the DRH (a) Use an inner hexagon screwdriver to remove the attachment plate from the rear of the DRH. (b) Remove the cover plate from one side of the DRH, and use a Phillips screwdriver to remove the plastic screws from the DRH. (c) Install the plastic screws to the rear of the DRH, and use a torque screwdriver to tighten the screws to 0.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-19 Installing the third DRH onto the third main bracket Step 4 Install the second set of DRH mounting brackets above or below the first set of DRH mounting brackets and maintain a space equal to or greater than the height of a DRH between the two sets of brackets, as shown in Figure 6-20. Figure 6-20 Installing the second set of DRH mounting brackets Step 5 Install the fourth DRH onto the fourth main bracket, as shown in Figure 6-21.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-21 Installing the fourth DRH onto the fourth main bracket ----End 6.3 Installing the DRH on U-steel This section describes the procedure and precautions for installing the DRH on U-steel. U-steel can be installed either on the ground only one DRH can be installed on a piece of U-steel. A DRH on U-steel is installed in standard mode by default. Prerequisites The hoist clamp on the main bracket is secured properly.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH 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 6-22 Top view of the DRH (1) U-steel Procedure Step 1 Determine a position for installing the mounting bracket. If the DRH must be installed on U-steel secured on the ground, see Figure 6-23 to determine a position.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Step 2 Loosen the two M10 nuts on the mounting brackets and move the M10x150 bolt out of the trough on the auxiliary bracket, as shown in Figure 6-24. Figure 6-24 Moving the bolt out of the trough Step 3 Slide the main and auxiliary brackets onto the U-steel and fit a bolt into the trough, as shown in Figure 6-25. Figure 6-25 Sliding the main and auxiliary brackets onto the U-steel Ensure that the arrows on the main bracket are pointing up.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-26 Securing the main and auxiliary brackets onto the U-steel (1) Plastic cap Step 5 Install the DRH onto the main bracket, as shown in Figure 6-27. Figure 6-27 Installing the DRH onto the main bracket ----End Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH 6.4 Installing the DRH on Angle Steel This section describes the procedure and precautions for installing the DRH on angle steel. Angle steel can be installed either on the ground only one DRH can be installed on a piece of angle steel. A DRH on angle steel is installed in standard mode by default. Prerequisites The hoist clamp on the main bracket is secured properly.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-29 Distance between the mounting bracket and the ground It is recommended that the mounting bracket be 1,200 mm (47.24 in.) to 1,600 mm (62.99 in.) above the ground. Step 2 Loosen the two M10 nuts on the mounting brackets and move the M10x150 bolt out of the trough on the auxiliary bracket, as shown in Figure 6-30.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-31 Sliding the main and auxiliary brackets onto the angle steel Step 4 Use a 16 mm (0.63 in.) torque wrench to tighten the two M10 nuts to 40 N·m (354.03 lbf·in.) so that the main and auxiliary brackets are tightly secured onto the angle steel, as shown in Figure 6-32. Tighten the nuts on the two bolts alternatively.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Step 5 Install the DRH onto the main bracket, as shown in Figure 6-33. Figure 6-33 Installing the DRH onto the main bracket ----End 6.5 Installing the DRH on a Wall This section describes the procedure and precautions for installing the DRH on a wall. A DRH on a wall is installed in standard mode by default. Prerequisites The hoist clamp on the main bracket is secured properly.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Expansion bolts must be tightened to 15 N·m (132.76 lbf·in.) so that the bolts stay secured without damaging the wall. Procedure Step 1 Remove the plastic cap, M10 nut, spring washer, thick flat washer, auxiliary bracket, and M10x150 bolt one by one. Reserve the main bracket for the wall-mounted installation.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH washer 8 8 tube Figure 6-36 Drilling a hole and inserting an expansion bolt assembly 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.). Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Ensure that the arrows on the main bracket are pointing down. Figure 6-37 Installing the main bracket (1) M8x85 expansion bolt (2) Spring washer (3) Flat washer Step 5 Install the DRH onto the main bracket, as shown in Figure 6-38. Figure 6-38 Installing the DRH onto the main bracket Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH ----End 6.6 Installing a DRH on an IFS06 This section describes the procedure and precautions for installing a DRH on an IFS06. Prerequisites The hoist clamp on the main bracket is secured properly. Do not stand the DRH upright because the RF ports cannot support the weight of the DRH. Place a foam pad or cardboard under a DRH to protect the DRH housing from damage during the installation.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Ensure that the arrows on the main bracket are pointing up. Height-restricted scenarios Use one finger to push and remove the rubber plugs on the beam and then install the main bracket, as shown in Figure 6-39. Figure 6-39 Installing the main bracket in height-restricted scenarios (1) Spring washer (2) Rubber washer Height-unrestricted scenarios Install the main bracket, as shown in Figure 6-40.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-40 Installing the main bracket in height-unrestricted scenarios (1) Spring washer (2) Rubber washer Step 3 Interchange the attachment plate and stainless steel screws at the rear of the DRH with the cover plate and plastic screws on one side of the DRH, as shown in Figure 6-9.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH (b) Remove the cover plate from one side of the DRH, and use a Phillips screwdriver to remove the plastic screws from the DRH. (c) Install the plastic screws to the rear of the DRH, and use a torque screwdriver to tighten the screws to 0.25 N·m (2.21 lbf·in.). (d) Install the cover plate onto the rear of the DRH.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-43 Installing DRHs on the lower level Step 6 Optional: When the ambient temperature is equal to or higher than the lowest operating temperature of the DRH and at least 10°C (50°F) lower than the highest operating temperature of the DRH, repeat the preceding steps to install the DRHs on the higher level, as shown in Figure 6-44. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 6 Installing the DRH Figure 6-44 Installing DRHs on the higher level ----End Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables 7 Installing DRH Cables About This Chapter This chapter describes the procedure for installing DRH cables. 7.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. 7.2 Cable Connections This section describes the cable connections for a single DRH and multiple DRHs. 7.3 Installation Process This section describes the process of installing DRH cables. 7.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables This section describes the procedure for closing the cover plate of a DRH cabling cavity. 7.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. If a cable listed below is not required, skip the routing requirements of the cable. General Cabling Requirements Requirements for Bending Radius The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Cables are routed indoors through the feeder window. Drip loops must be made outside the feeder window, and the requirements for the minimum bending radius are met. When cables are routed indoors, engineers are required indoors for cooperation. The feeder window must be waterproofed. Outdoor Cabling Requirements Cables routed outdoors must be led through a pipe when they may be damaged.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-1 Securing cables on the cable tray 7.1.1 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.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Fiber optic cables must be routed by at least three qualified and trained personnel before all preparations are made. 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. Cables are routed in an untangled and orderly fashion. Do not bind fiber optic cables at turns.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-3 Cable connections for a single DRH (1) PGND cable (2) DRH RF jumper (4) CPRI fiber optic cable (5) DRH alarm cable (3) DRH power cable Figure 7-4 shows the cable connections for DRHs. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-4 Cable connections for DRHs (1) PGND cable (2) DRH RF jumper (3) DRH power cable (4) CPRI fiber optic cable - - 7.3 Installation Process This section describes the process of installing DRH cables. Figure 7-5 shows the process of installing DRH cables. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-5 Process of installing DRH cables 7.4 DRH Cable List This section describes DRH cable connections. Table 7-1 lists DRH cables. Table 7-1 DRH cables One End The Other End Connector Installation Position Connector Installation Position OT terminal (M6, 16 mm2 or 0.025 in.2) Ground terminal on the DRH OT terminal (M8, 16 mm2 or 0.025 in.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables One End The Other End Connector Installation Position Connector Installation Position DLC connector CPRI0 port on the DRH DLC connector CPRI port on a board in the DCU or CPRI1 port on the upper-level DRH CPRI1 port on the DRH DIN male connector ANT_TX/RX A or ANT_TX/RX B port on the DRH CPRI0 port on the lower-level DRH DIN or N male connector Muti-combiner or DAS system 7.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-6 Installing a DRH PGND cable Crimp OT terminals in correct positions, as shown in Figure 7-7. Figure 7-7 Correct position of an OT terminal Step 3 Label the installed cables according to the instructions in Attaching a Cable-Tying Label. ----End 7.6 Installing a DRH RF Jumper This section describes the procedure for installing a DRH RF jumper.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-8 Installing a DRH RF Jumper On AC-powered electric railways, such as high speed railways, when leaky cables are connected to DRHs installed in tunnels, high-voltage-resistance DC blocks must be installed between DRH RF jumpers and the leaky cables to protect the DRHs against damage. Step 2 Link the other end of the RF jumper to the external Muti-combiner or DAS system.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-9 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.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables If ANT_TX/RXC or ANT_TX/RXD is not used, do not remove dustproof caps from vacant antenna connectors. If the DRH is used outdoors, wrap waterproof tapes of If ANT_TX/RXC and ANT_TX/RXD. Figure 7-10 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.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Step 7 Attach color-coding to the installed RF jumper according to the instructions in Attaching the Color Ring. ----End 7.7 Opening the Cover Plate of a DRH Cabling Cavity This section describes the procedure for opening the cover plate of a DRH cabling cavity. Procedure Step 1 Wear ESD gloves.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-12 DRH cabling cavity (1) Cover plate (2) Cable diagram on labels (3) Cable trough for the fiber optic cable (4) Cable trough for the power cable (5) Cable trough for the alarm cable (6) Waterproof block (7) Clip (8) Cabling cavity - Step 3 Loosen the screws on the clip using an M4 Phillips screwdriver, and open the clip, as shown Figure 7-13. Open the clip only for the associated cable.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Remove only the waterproof blocks for the cables to be installed. ----End 7.8 Installing a DRH Power Cable This section describes the procedure for installing a DRH power cable. Prerequisites A tool-less female connector (pressfit type) is added to the DRH power cable on the DRH side. For details, see 10.1 Adding a Tool-Less Female Connector (Pressfit Type) to the DRH Power Cable on the DRH Side.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Procedure Step 1 Connect the tool-less female connector (pressfit type) at one end of the DRH power cable to the power supply socket on the DRH, as shown in Figure 7-14. Figure 7-14 Installing a DRH power cable Ensure that the exposed shield layer of the power cable is properly tightened using the clip. Step 2 Connect the connector at the other end of the DRH power cable to the corresponding position on the power device.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables 7.9 Installing a CPRI Fiber Optic Cable This section describes the procedure for installing a CPRI fiber optic cable. Prerequisites Before the installation, verify that the single-mode optical module is used. The optical modules to be installed must match CPRI rates. Context A CPRI fiber optic cable transmits CPRI signals between a BBU and a DRH.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-16 Installing a CPRI fiber optic cable To avoid any damage to fiber optic cables, the cables connected to the DRH must be installed according to the installation process. For details about the installation process, see 7.3 Installation Process. If only one fiber optic cable is required, secure the fiber optic cable into the cable clip near the power cable to leave some slack at the bend.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-17 Installing a DRH alarm cable Step 2 Connect the eight cord end terminals at the other end to external alarm devices. Step 3 Route the cables according to the instructions in 7.1 Cabling Requirements, and then use cable ties to bind the cables. Step 4 Label the installed cables according to the instructions in Attaching an L-Shaped Label. ----End 7.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-18 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity, as shown in Figure 7-19. Ensure that cables and waterproof blocks are properly inserted into troughs. Figure 7-19 Correct placement of waterproof blocks Step 3 Close the cover plate of the DRH cabling cavity. Use an M4 torque screwdriver to tighten the screws on the cover plate to 0.8 N·m (7.08 lbf·in.
DRH3985A&3917A&3919A Installation Guide 7 Installing DRH Cables Figure 7-20 Closing the cover plate of a DRH cabling cavity (1) Protection screw Step 4 Take off the ESD gloves, and pack up all the tools. ----End Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 8 8 Checking the DRH Hardware Installation Checking the DRH Hardware Installation After a DRH is installed, check the hardware installation. Table 8-1 provides the checklist for the DRH hardware installation. Table 8-1 Checklist for the DRH 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 DRH is securely installed.
DRH3985A&3917A&3919A Installation Guide 9 Powering On a DRH 9 Powering On a DRH After all the devices are installed, check the power-on status of a DRH. After you unpack a DRH, you must power on it within 24 hours. If you power off the DRH for maintenance, you must restore power to the DRH within 24 hours. Figure 9-1 shows the DRH power-on check process. For details about how to power on a DRH, see Powering On a DRH.
DRH3985A&3917A&3919A Installation Guide 9 Powering On a DRH Figure 9-1 DRH power-on check process (a) The normal input voltage of a DRH 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 DRH is on for 1s and off for 1s. The ALM indicator is steady off. Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DRH3985A&3917A&3919A Installation Guide 10 Appendix 10 Appendix About This Chapter This section describes the procedure for adding an easy power receptacle (pressfit type) connector. 10.1 Adding a Tool-Less Female Connector (Pressfit Type) to the DRH Power Cable on the DRH Side This section describes the procedure for adding a tool-less female connector (pressfit type) to the DRH power cable on the DRH side. 10.
DRH3985A&3917A&3919A Installation Guide 10 Appendix Figure 10-1 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 10-2. Figure 10-2 Determining the length of the power cable Step 2 Strip the specified length of the sheath off the power cable, as shown in Figure 10-3. Figure 10-3 Stripping the specified length of sheath Step 3 Strip a specified length of sheath off each core wire.
DRH3985A&3917A&3919A Installation Guide 10 Appendix Figure 10-4 Stripping the sheath off each core wire Figure 10-5 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 10-6. Figure 10-6 Tightening screws 2.
DRH3985A&3917A&3919A Installation Guide 10 Appendix Figure 10-7 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 10-8. Figure 10-8 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 10-9.
DRH3985A&3917A&3919A Installation Guide 10 Appendix Figure 10-9 Inserting core wires into the tool-less female connector (pressfit type) ----End Issue Draft A (2013-09-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
