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Huawei DBS3900 Installation Manual

Huawei DBS3900 Installation Manual

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LampSite
Installation Guide
Issue
08
Date
2015-01-15
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei DBS3900

  • Page 1 LampSite Installation Guide Issue Date 2015-01-15 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.

  • Page 3: About This Document

    RAN16.0 and later versions l eRAN7.0 and later versions l eRAN TDD 7.0 and later versions Intended Audience This document is intended for: BTS installation personnel Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 4: Table Of Contents

    5.4.7 Installing CRPI Optical Cables..........................40 5.4.8 Installing an RHUB3908 Alarm Cable (Optional)....................42 5.4.9 Installing an RHUB3908 Power Cable........................43 5.5 Checking the RHUB3908 Hardware Installation......................44 5.6 Power-on Check on an RHUB3908..........................46 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 5 6.6 Checking the pRRU3901 Hardware Installation......................84 6.7 Powering on the pRRU3901............................85 7 Installing the Extender (Optional)...................87 8 Appendix............................90 8.1 MAC Collection Template............................91 8.2 LampSite Engineering Label............................91 8.3 Attaching an L-Shaped Label............................95 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Changes In Lampsite Installation Guide

    Compared with 07 (2014-11-15), no information is deleted. 07 (2014-11-15) This is the seventh commercial release. Compared with 06 (2014-09-30), no information is added. Compared with 06 (2014-09-30), this issue incorporates the following change: Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 7 Installing an Ethernet Cable Added the Ethernet cable specifications and requirements on flame spread rating. Installing an Ethernet Cable Compared with 04 (2014-07-30), no information is deleted. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 8 Compared with 02 (2014-05-30), no information is deleted. 02 (2014-05-30) This is the second commercial release. Compared with 01 (2014-04-26), no information is added. Compared with 01 (2014-04-26), this issue incorporates the following change: Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 9 Compared with Draft B (2014-02-28), no information is deleted. Draft B (2014-02-28) This is a draft release. Compared with draft A (2013-11-30), this issue includes the following new topics: Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 10 Compared with draft A (2013-11-30), this issue excludes the following topics: Installing External Antennas (Optional) RHUB3908 Exterior RHUB3908 Ports and Indicators pRRU3901 Exterior pRRU3901 Ports and Indicators Draft A (2013-11-30) This is a draft release. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 11: Installation Preparations

    2.3 Requirements for Installation Personnel This section describes requirements for installation engineers. They must be qualified and trained, and familiar with correct operation methods and safety precautions before performing any operations. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Reference Documents

    Before the installation, you must read the following documents: LampSite Hardware Description Installation Reference For details about how to install a baseband unit (BBU), see DBS3900 Installation Guide. 2.2 Preparing Tools and Instruments This section describes the tools and instruments that must be prepared before the installation.

  • Page 13: Requirements For Installation Personnel

    Before the installation, pay attention to the following items: Technical engineers must take Huawei training and be familiar with proper installation and operation methods. The number of installation personnel depends on the engineering schedule and installation environment.

  • Page 14: Unpacking And Checking

    Report the problems and causes to the local inconsistent with that recorded in the Huawei office. packing lists on all packing boxes Step 2 Check the exterior of each packing box. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 15 1. Store the unpacked equipment and packing materials indoors. 2. Take photos of the storeroom, rusted or eroded equipment, packing box, and packing materials. 3. File the photos. ----End Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Installing A Bbu

    The BBU can have BBU3900 and BBU3910. Unless otherwise specified, the BBU refers to both the BBU3900 and BBU3910 in this document. For details about the installation of the BBU, see DBS3900 Installation Guide. Issue 08 (2015-01-15) Huawei Proprietary and Confidential...

  • Page 17: Installing An Rhub3908

    After an RHUB3908 is installed, check the installation of hardware including the devices and related cables. 5.6 Power-on Check on an RHUB3908 This section describes the power-on check on the RHUB3908 after the RHUB3908 hardware is installed and checked. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Information About The Installation

    In reverse mode, the front of the mounting ear is 31 mm away from the RHUB3908 panel, as shown in Figure 5-2. Figure 5-2 Installing mounting ears in reverse mode Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 19 When an RHUB3908 is installed in a 19-inch shelf, the shelf must be installed on a wall. One shelf can house multiple RHUB3908s with 1 U space between two RHUB3908s. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 20 Installation Guide 5 Installing an RHUB3908 Figure 5-5 Figure 5-6 show RHUB3908s installed in a 19-inch shelf. Figure 5-5 RHUB3908 installed in a 19-inch shelf in standard mode Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 21 Expansion bolts must be tightened to 10 N·m (88.507 bf·in.) to ensure the bolts work properly and the wall remains intact without cracks in it. Figure 5-7 shows an RHUB3908 installed on a wall. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Installation Clearance Requirements Of An Rhub3908

    A clearance of 350 mm must be reserved in front of the air intake vent of the fan of the power supply unit (PSU) for maintenance. Figure 5-8 shows the installation clearance for the RHUB3908 installed in a 19-inch cabinet, rack, or shelf. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 23 RHUB3908 is installed on a wall. Figure 5-9 Recommended installation clearance for a wall-mounted RHUB3908 (unit: mm) Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Installation Environment Of An Rhub3908

    The temperature and humidity of the installation position must ensure normal operation. A cool and ventilated place is recommended. The heat dissipation holes on the RHUB3908 cannot be blocked. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 25 The RHUB3908 must be installed in a dry, ventilating, and dust-proof place. If the RHUB3908 is installed in parking areas or basements, the installation position must be well-ventilated. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Installation Process

    This section describes how to install an RHUB3908 in a 19-inch cabinet. Procedure The following describes how to install an RHUB3908 with mounting ears in reverse mode: NOTE If necessary, request one more person for assistance. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 27 If necessary, request one more person for assistance. Remove the mounting ears on both sides of the RHUB3908 by removing the four M4×8 screws, as shown in Figure 5-14. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 28 With one hand holding it, align the mounting holes with the installation holes, slowly push the RHUB3908 into the required position in the cabinet, as shown in Figure 5-16. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Installing An Rhub3908 In A 19-Inch Shelf

    The PSU must be installed at the bottom of the cabinet. Procedure The following describes how to install an RHUB3908 with mounting ears installed in reverse mode: NOTE If necessary, request one more person for assistance. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 30 If necessary, request one more person for assistance. Remove the mounting ears on both sides of the RHUB by removing the four M4×8 screws, as shown in Figure 5-19. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 31 RHUB3908 into the required position in the cabinet, as shown in . Use a torque screwdriver or Phillips screwdriver to tighten the four M6×16 screws with a torque of 2 N•m, as shown in Figure 5-21. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 32: Installing An Rhub3908 On A Wall

    Use a torque screwdriver or Phillips screwdriver to remove the mounting ears on both sides of the RHUB3908 by removing the four M4×8 screws, as shown in Figure 5-22. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 33 RHUB3908 to the position to be installed against the wall, and then mark the four anchor points where the mounting ear screws are fastened using a marker, as shown in Figure 5-24. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 34 To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes. Step 3 Drill holes at the anchor point and install expansion bolts, as shown in Figure 5-25. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 35 M6×60 bolts with a torque of 5 N•m to secure the RHUB3908 to the wall, as shown in Figure 5-26. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Installing Rhub3908 Cables

    Cables must be routed according to the specified cabling requirements to prevent signal interference. NOTE If a cable listed below is not required, skip the requirements for routing the cable. General Requirements for Cable Layout 中国标准 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 37 Cables are routed away from heat sources, or heat-insulation materials are added between cables and heat sources. Cables are routed away the cooling vents of the RHUB3908. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 38 If the optical cable close to a device on the tower is too long, the optical cables are wrapped and secured to the tower. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Rhub3908 Cable List

    E1 port on the the RHUB3908 pRRU3901 (Optional) RJ45 connector EXT_ALM Bare end Alarm signal port RHUB3908 port on the of the monitored Alarm Cable RHUB3908 equipment Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Cable Connections

    RHUB3908 and the Extender and the other between the Extender and the pRRU3901. 5.4.4 RHUB3908 Cable Installation Process This section describes the process of installing RHUB3908 cables. Figure 5-28 shows the RHUB3908 cable installation process. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Installing An Rhub3908 Pgnd Cable

    ). Both ends of the cable are OT terminals, as shown in Figure Figure 5-29 Exterior of a PGND cable (1) OT terminal (6 mm [0.009 in. ], M4) (2) OT terminal (6 mm [0.009 in. ], M6) Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 42 PGND cable to the ground screw on the RHUB3908 panel with a torque of 1.4 N•m. If the OT terminal is a one-hole OT terminal, connect it to the ground screw on the lower part of the RHUB3908 panel, as shown in Figure 5-31. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Installing An Ethernet Cable

    The Ethernet cable has the following functions: Provides power supply for the pRRU when connected to the CPRI_E0 port on the pRRU. Transmits CPRI signals between an RHUB3908 and a pRRU. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 44 CPRI_E0 to CPRI_E7 on the RHUB3908 panel based on the engineering design, as shown in Figure 5-32. Figure 5-32 Install an Ethernet cable between an RHUB3908 and a pRRU3901 (1) Ethernet cable (2) CPRI_E0 port on the pRRU3901 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Installing Crpi Optical Cables

    Lower the puller of the optical module. Insert the optical module into the CPRI port on the RHUB3908, BBU or ODF. Raise the puller of the optical module. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 46 CPRI0 or CPRI1 port on the CPRI0 or CPRI1 port on RHUB3908 the RHUB3908 BBU3900/ FC, SC, or LC LBBP&WBBP&UBBP/ connector CPRI port CPRI0 or CPRI1 port on the RHUB3908 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 47: Installing An Rhub3908 Alarm Cable (Optional)

    Connectors for an alarm cable are prepared. Context Figure 5-36 shows the exterior of an RHUB3908 alarm cable. RHUB Cable List shows the installation position on both ends of the RHUB3908 cable. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Installing An Rhub3908 Power Cable

    Step 2 Connect the power connector on the X1 end to the AC power input port on the RHUB3908 panel, as shown in Figure 5-37. Step 3 Connect the power connector on the X2 end to the external power supply port, as shown in Figure 5-37. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Checking The Rhub3908 Hardware Installation

    The surface of the RHUB3908 is neat and clean. The external paint is intact. The labels, tags, and nameplates are correct, legible, and complete. Table 5-5 lists the checking list of the power cable and PGND cable connections. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 50 The cable layout facilitates maintenance and expansion. Correct and clear labels are attached to both ends of the signal cables. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 51: Power-On Check On An Rhub3908

    Find out the cause and ensure that the resistance to or larger than 10 ohms meets requirement. Then, go to Step Step 2 Measure the voltage of the RHUB3908. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 52 0.125s being uploaded. not finished in 5 minutes, and check whether the configuration file is correct. Power on the RHUB3908 again after the fault is rectified. ----End Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Installing A Prru3901

    This section describes the procedure of installing the pRRU3901 cables. 6.6 Checking the pRRU3901 Hardware Installation pRRU3901 hardware installation checking includes hardware and cable installation checking. 6.7 Powering on the pRRU3901 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 54 LampSite Installation Guide 6 Installing a pRRU3901 This section describes the power-on check on the pRRU3901 after the pRRU3901 hardware is installed and checked. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Information About The Installation

    The pRRU3901 must keep away from a metal wall to avoid the impact on the antenna performance. When a pRRU3901 is installed on a wall, installation modes vary with the quality of wall, as shown in Table 6-2. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 56: Installation Requirements

    The wall is too thick to drill, and the pRRU3901 cannot be installed on a wall using a V clamp through an attachment plate. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 57 6-4. 6-4. a pole load at least four times the weight of For details, see the pRRU3901. pRRU Installed on a Pole. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 58 The pRRU3901 can be installed on a keel of U-shape, T-shape, or H-shape. For the keels of other shapes, they are determined based on the onsite requirements. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Space Requirements

    When the external antenna is required, the recommended space for installing a single pRRU3901 is described as follows: At least 300 mm above the pRRU3901 is reserved for maintenance. At least 300 mm under the pRRU3901 is reserved for cabling. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Prru3901 Installation Environment Requirements

    The installation environment of a pRRU3901 involves the running environment specifications for the pRRU3901 and other specifications. pRRU3901 Running Environment Specifications Table 6-6 shows the environment specifications for the pRRU3901 installed indoors. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Obtaining The Mac Address (Optional)

    The MAC address indicates the IP address through which a device can be reached. Procedure Step 1 Remove the backup WIFI MAC label from the front housing of the pRRU3901 and keep them secure, as shown in Figure 6-3. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Installation Process

    This section describes the pRRU3901 installation process, which involves installing a pRRU3901, and cables, checking the pRRU3901 hardware installation, and powering on the pRRU3901. Figure 6-4 shows the pRRU3901 installation process. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 63: Installing A Prru3901

    It is good practice to install the pRRU3901 on materials that can tolerate a temperature higher than 65° C and have an ignition point higher than 70°C. 6.4.1 pRRU3901 Installation Kits This section describes the pRRU3901 installation kits. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 64 (3) Screw (M6x50) (4) Plastic expansion sleeve (5) Bolt (M6x80) (6) Flat washer The following figure shows the specifications of the installation plate. Figure 6-6 Plate specifications Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 65: Prru3901 Installed On A Wall

    Figure 6-7. Figure 6-7 Anchor points of the pRRU3901 installation kits (unit: mm) (1) Wall (2) Plate (3) Anchor point Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 66 Step 4 Lead the M6x50 screw through the washer, and then through the drilling holes of the plate to the plastic expansion sleeve, and tighten the screw to a torque of 5 N•m, as shown in Figure 6-9. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 67 NOTE It is recommended that you observe the installation from one side of the pRRU3901 when inserting hooks into the kits. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 68: Prru3901 Installed On A Ceiling

    30 degrees. Therefore, whether a pRRU3901 can be installed on a ceiling depends on the ceiling material. Procedure Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and the space requirements. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 69 If they are inaccurately positioned, re-measure and re-drill the holes. Then, use a rubber mallet to push the two plastic expansion sleeve into the holes. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 70 NOTE It is recommended that you observe the installation from one side of the pRRU3901 when inserting hooks into the kits. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Prru3901 Installed On A Pole

    Lead the M6x80 bolt through the plate, and tighten the bolt to a torque of 5 N•m, as shown in Figure 6-15. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 72 The hose clamp is prepared by customers. Tighten the bolt with a torque of 5 N•m, as shown in Figure 6-16. Figure 6-16 Securing the pRRU3901 installation kits on the metal pole Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 73: Prru3901 Installed On A Plate

    Step 2 Place the plate in the installation position against the wall. Then, level the plate and mark the two anchor points using a marker, as shown in Figure 6-18. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 74 Step 4 Lead the bolt M6x80 through the panel and daughter board, and tighten the torque screwdriver to a torque of 5 N•m, as shown in Figure 6-19. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 75 NOTE It is recommended that you observe the installation from one side of the pRRU3901 when inserting hooks into the kits. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 76: Prru3901 Installed On A Keel

    For pRRU3901 installation space requirements, see Space Requirements. Step 2 Lead the V clamp on across the keel, and mark the projective position on the cover with a marker, as shown in Figure 6-21. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 77 Step 4 Lead the bolt M6x80 through the installation plate and ceiling cover, and then socket to tighten the bolt to a torque of 5 N•m, as shown in Figure 6-22. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 78 NOTE It is recommended that you observe the installation from one side of the pRRU3901 when inserting hooks into the kits. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 79: Installing Prru3901 Cables

    General Requirements for Cable Layout 中国标准 综合布线系统工程设计规范 GB 50311-2007 综合布线工程验收规范（含条文说明） GB 50312-2007 安全防范工程技术规范 GB 50348-2004 电子信息系统机房施工及验收规范 GB 50462-2008 智能建筑工程质量验收规范 GB 50339-2003 建筑电气工程施工质量验收规范 GB 50303-2002 通信管道工程施工及验收技术规范 GB 50374-2006 Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Prru3901 Cable List

    24 Ethernet cables can be led through a pipe. In this case, ensure that 1/3 space inside the pipes must be vacant. 6.5.2 pRRU3901 Cable List This section describes pRRU3901 cable connections. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Cable Connections

    N male connector, which is connected to the antenna system. For the standard of the pRRU3901 RF jumper, see (Optional) pRRU3901 RF Jumper of the LampSite Hardware Description. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 82 CPRI_E7 on the RHUB3908 panel. This document describes signal transmission using one Ethernet cable as an example. Figure 6-25 shows the cable connection when the pRRU3901 is configured with two RF Daughter Boards. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 83 CPRI_E7 on the RHUB3908 panel. This document describes signal transmission using one Ethernet cable as an example. Figure 6-26 shows the cable connection when the pRRU3901 is configured with two RF Daughter Boards and one Wi-Fi daughter board. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 84: Cable Connections (Lte Tdd)

    N male connector, which is connected to the antenna system. For the standard of the pRRU3901 RF jumper, please see (Optional) pRRU RF Jumper of the LampSite Hardware Description. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 85: Prru3901 Cable Installation Process

    Figure 6-28 pRRU3901 cable installation process 6.5.6 Installing an Ethernet Cable This section describes how to install an Ethernet cable. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 86 Optional: Connect the RJ45 connector at the other end of the Ethernet cable to the output port of the Extender. Then, connect the RJ45 connector at one end of another Ethernet cable to the input port of the Extender. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 87: Installing Prru3901 Jumpers (Optional)

    N connector. Context If the RF jumper is provided by the customer, the jumper must not be lower than the RG316 specifications. In addition, the jumpers can be used after they are checked by Huawei engineers. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright ©...
  • Page 88 2.4 rpm to tighten it. Step 3 Connect the type N female connector of the jumper to the type N male connector of the RF feeder connected to the built-in antenna. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 89: Checking The Prru3901 Hardware Installation

    Ensure that the pRRU3901 is properly installed. The surface of the pRRU3901 is neat and clean. The external paint is intact. The labels, tags, and nameplates are correct, legible, and complete. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 90: Powering On The Prru3901

    CPRI_E0 port. Step 2 Power on the pRRU3901. Wait 3 to 5 minutes, check the status of the RUN indicator on the pRRU3901. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 91 Check whether the data configuration file is correct. After the fault is rectify, power on the pRRU3901 again. ----End Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 92: Installing The Extender (Optional)

    At least 150 mm under the Extender is reserved for cabling. Procedure Step 1 Use a marker to mark the two anchor points according to inter-hole spacing, as shown in Figure 7-1. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 93 Step 3 Place the Extender in the corresponding position and use an M4 Phillips screwdriver to tighten the screws to 1.4 N•m, as shown in Figure 7-3. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 94 LampSite Installation Guide 7 Installing the Extender (Optional) Figure 7-3 Installing Extender ----End Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 95: Appendix

    This section describes the content and presents the exterior of LampSite engineering labels. 8.3 Attaching an L-Shaped Label This section describes the procedure and precautions to be taken for attaching an L-shaped label. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 96: Mac Collection Template

    The engineering labels are used for LampSite units RHUB3908 and pRRU3901 for indoor scenarios. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 97 Label for the RHUB3908x EXT-ALM monitorin alarm cable. g label EXT_AL x specifies the number of RHUB3908s and cannot exceed the maximum RHUB3908 number supported by the networking. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 98 Label for the pRRU3901y PWR or CPRI_E0 label power cable. y specifies the number of pRRU3901s and cannot exceed the maximum pRRU3901 number supported by the networking. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 99 For details about the maximum number of RHUB3908s and pRRU3901s in the LampSite solution, see Typical Configurations in LampSite Technical Description. Label Structure Using the RHUB3908 power label as an example, Figure 8-1 shows the structure of a LampSite engineering label. Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 100: Attaching An L-Shaped Label

    This section describes the procedure and precautions to be taken for attaching an L-shaped label. Context This section applies to Huawei sign plate labels. If other engineering labels in accordance with local standards are used on site, follow the local standards for attaching sign plate labels.
  • Page 101 Figure 8-4 Turning over the labeling area along the adhesive face Figure 8-5 Attached engineering label Step 5 Fill in the attached blank label by referring to 8.2 LampSite Engineering Label. ----End Issue 08 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 102 AWS+PCS+WIFI Issue: 02 Date: 2014.12.11 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 104 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...
  • Page 106 Installation and maintenance personnel must understand basic safety precautions to avoid hazards.  When operating Huawei equipment, in addition to following the general precautions in this document, follow the specific safety instructions given by Huawei. Issue (02) Huawei Proprietary and Confidential...

  • Page 107: Power Supply

    1 Safety  Only trained and qualified personnel are allowed to install, operate, and maintain Huawei equipment. Local Safety Regulations When operating Huawei equipment, you must follow the local laws and regulations. The safety instructions in this document are only supplements to the local laws and regulations.
  • Page 108 Only qualified professional personnel are allowed to install, configure, operate, and disassemble the device.  Only the personnel authenticated or authorized by Huawei are allowed to replace or change the device of the parts of the device (including the software). ...

  • Page 109: Power Cable

    Before installing or removing the power cable, turn off the power switch.  Before connecting a power cable, check that the label on the power cable is correct. Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 110 Do not walk below the cantilever or hoisted objects when heavy objects are being hoisted.  Only trained and qualified personnel can perform hoisting operations.  Before hoisting heavy objects, check that the hoisting tools are complete and in good condition. Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 111 When using a ladder, ensure that the wider feet of the ladder are downward, or take protection measures for the ladder feet to prevent the ladder from sliding. Ensure that the ladder is placed securely. Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 112 After drilling, clean the metal scraps immediately. Sharp Objects Before you hold or carry a device, wear protective gloves to avoid getting injured by sharp edges of the device. Lifting Heavy Objects Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 113 High Electrical Leakage If the "high electrical leakage" tag is present on the power terminal of the device, you must ground the device before powering it on. Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 114 ESD wrist strap when touching the device or handling boards or application-specific integrated circuits (ASICs). Figure 1-2 shows how to wear an ESD wrist strap. Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 115 24 hours.  Handle cables with caution, especially at a low temperature. Do not drop the cables directly from the vehicle. 1-10 Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 116 Keep higher-power antennas away from accessible areas.  Keep the antennas in a site that is far away from urban areas, though this may contradict the coverage area requirements. Issue (02) Huawei Proprietary and Confidential 1-11 Copyright © Huawei Technologies Co., Ltd.
  • Page 117 GdB/10 = 10 numeric (dB) – B (dB) – B (dB) – B GdB = G (dB) antenna cable vertical-attenutation horizontal-attenuation B = attenuation in dB 1-12 Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 LampSite Site Maintenance Guide Issue Date 2015-01-15 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 119 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.
  • Page 120 It also explains how to replace the components and modules. NOTE For details of the BBU site maintenance guide, see DBS3900 Site Maintenance Guide. Product Version The following table lists the product version related to this document.
  • Page 121 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. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 122 Optional items are grouped in braces and separated by { x | y | ... } vertical bars. A minimum of one item or a maximum of all items can be selected. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 123 Press the primary mouse button twice continuously and quickly without moving the pointer. Drag Press and hold the primary mouse button and move the pointer to a certain position. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 124 5 Powering On and Powering Off the pRRU3901..............14 5.1 Powering On the pRRU3901............................15 5.2 Powering Off the pRRU3901............................16 6 Replacing the RHUB3908......................17 7 Replacing an Optical Module....................21 8 Replacing the pRRU3901......................25 Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 125 Compared with 04 (2014-07-30), no information is deleted. 04 (2014-07-30) This is the fourth commercial release. Compared with 03 (2014-06-30), no information is added. Compared with 03 (2014-06-30), this issue incorporates the following change: Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 126 01 (2014-04-26) This is the first commercial release. Compared with Draft C (2014-03-26), no information is added. Compared with Draft C (2014-03-26), this issue incorporates the following changes: Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 127 Compared with draft A (2013-11-30), this issue incorporates the following changes: Content Change Description Entire document Added descriptions about pRRU3901s with three transmission ports. Such pRRU3901s support integrated Wi-Fi services. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 128 Replacing the Wi-Fi Daughter Board Compared with draft A (2013-11-30), this issue excludes the following topic: Replacing the pRRU3901 Draft A (2013-11-30) This is a draft release. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 129: Rhub3908 Maintenance Items

    Check whether the the equipment room routine lighting system and emergency lighting system are running properly. Air conditioner Every other month Check whether the air conditioner is running properly. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 130 Equipment cleanness Monthly or quarterly Check whether the The equipment equipment is clean. surface is clean. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 131 The joints are secure PGND cables and and not corroded. ground bar are The PGND cables securely connected. and ground bar are not deteriorated and are protected from corrosion. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 132 Monthly or quarterly Use a ground The ground resistance tester to resistance is equal to measure the ground or less than 10 ohms. resistance and record the measurement result. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 133: Prru3901 Maintenance Items

    Ports and working properly. Indicators in LampSite Hardware Description. Power System Maintenance Items Table 3-2 lists the power system maintenance items for the pRRU3901. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 134 The joints are not corroded. Voltage Monthly or quarterly Use a multimeter to The voltage is in the measure the voltage permissible range. of the power supply. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 135: Powering On And Powering Off The Rhub3908

    You need to perform a normal power-off in scenarios such as an equipment swap or foreseeable regional blackout, and you need to perform an emergency power-off in emergencies such as a fire, smoke, or water damage in indoor scenarios. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 136 5 minutes, disable the power supply and check whether the data in the configuration file is correct. Rectify the fault and then power on the RHUB3908 again. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 137: Powering Off The Rhub3908

    If the RHUB3908 is equipped with an external power device, turn off the switch of the external power device. Emergency power-off Turn off the switch of the external power device. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 138: Powering On And Powering Off The Prru3901

    You need to perform a normal power-off in scenarios such as an equipment swap or foreseeable regional blackout, and you need to perform an emergency power-off in emergencies such as a fire, smoke, or water damage in indoor scenarios. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 139: Powering On The Prru3901

    5 minutes, disable the power supply. Check whether the data in the configuration file is correct. Rectify the fault and then power on the pRRU3901 again. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 140: Powering Off The Prru3901

    Powering off the pRRU3901 interrupts services, and therefore perform associated operations before a power-off. Remove the Ethernet cable. Emergency power-off Turn off the switch of the external power device. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 141: Replacing The Rhub3908

    Take insulation measures, and then remove all cables from the RHUB3908. Use a torque screwdriver or Phillips screwdriver to remove the four screws on the mounting ear of the RHUB3908, as shown in Figure 6-1. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 142 Use a torque wrench or socket wrench to remove the four expansion bolts on the mounting ear, and then remove the RHUB3908, as shown in Figure 6-2. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 143 Determine whether the new RHUB3908 is working properly according to the indicator status on the RHUB3908. For details about the indicator status, see RHUB3908 Ports and Indicators in LampSite Hardware Description. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 144 Record the information about the faulty component in the fault card. Contact the local Huawei office to deal with the faulty component. Issue 05 (2015-01-15) Huawei Proprietary and Confidential...

  • Page 145: Replacing An Optical Module

    Step 1 Wear ESD gloves. Step 2 Record the optical module and fiber connections. Step 3 Power off the RHUB3908 according to the instructions in 4.2 Powering Off the RHUB3908. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 146 CPRI0 or CPRI1 port, as shown in Figure 7-2. Figure 7-2 Removing the optical module Step 6 Install the new optical module onto the corresponding CPRI port, as shown in Figure 7-3. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 147 The CPRI indicator is red or in another color CPRI signal transmission is abnormal. Check whether the optical fiber and optical module are securely installed. Step 10 Take off the ESD gloves and pack up all the tools. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 148 Record the information about the faulty component in the fault card. Contact the local Huawei office to deal with the faulty component. Issue 05 (2015-01-15) Huawei Proprietary and Confidential...

  • Page 149: Replacing The Prru3901

    On the LTE side, log in to the LMT and run the BLK BRD command to block the RF daughter board of the pRRU3901. Step 2 Wear ESD gloves. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 150 Step 8 Connect the cables to the pRRU3901 according to the recorded positions. Step 9 Power on the pRRU3901 by referring to 5.1 Powering On the pRRU3901. Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 151 On the LTE side, log in to the eNodeB LMT and run the UBL BRD command to unblock the RF daughter board of the pRRU3901. Step 12 Take off the ESD gloves and pack up all the tools. ----End Issue 05 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 152 Regulatory Compliance Statement pRRU3901, pRRU3901 AWS+PCS+WIFI Issue: 02 Date:2014-12-11 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 154 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.
  • Page 156 1 Regulatory Compliance Statement Regulatory Compliance Statement About This Chapter 1.1 Declaration of Conformity to European Directives Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 157 1 Regulatory Compliance Statement 1.1 Declaration of Conformity to European Directives Figure 1-1 Declaration of Conformity to European Directives Huawei Proprietary and Confidential Issue () Copyright © Huawei Technologies Co., Ltd.
  • Page 158 2.7 China RoHS hazardous substance table 2.8 India RoHS hazardous substance table 2.9 Other Markets 2.1 Regulatory Compliance Standards The Product complies with the standards listed in Table 2-1. Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 159 Safety IEC/EN 60950-1  IEC/EN41003  EN 60950-1  UL 60950-1  CSA C22.2 No 60950-1  AS/NZS 60950.1  BS EN 60950-1  IS 13252  GB4943 Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 160 The Product complies with the following European directives and regulations.  2004/108/EC (EMC)  2006/95/EC (low voltage)  1999/5/EC (R&TTE)  2011/65/EU (RoHS)  EC NO. 1907/2006 (REACH) Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 161 Product complies with Regulation EC NO. 1907/2006 (REACH) and other similar regulations from the countries outside the European Union. Huawei will notify to the European Chemical Agency (ECHA) or the customer when necessary and regulation requires. Product complies with Directive 2002/96/EC on waste electrical and electronic equipment (WEEE).
  • Page 162 2 Regulatory Compliance Information If this device is modified without authorization from Huawei, the device may no longer comply with FCC requirements for Class B digital devices. In that a case, your right to use the device may be limited by FCC regulations. Moreover, you may be required to correct any interference to radio or television communications at your own expense.
  • Page 163 Interference.Install and use the equipment according to the instruction manual. 2.6 CISPR 22 Compliance The Product complies with CISPR 22 for Class B by the ITE. 2.7 China RoHS hazardous substance table Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.
  • Page 164 〇 〇 〇 〇 Alloy Parts 〇 〇 〇 〇 〇 〇 Metal Fittings 〇 ╳ 〇 〇 〇 〇 PCBA 〇 ╳ 〇 〇 〇 〇 Capacitor Issue (02) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 165 S in the e-waste (Management and Handling) Rules, 2011. 2.9 Other Markets For relevant compliance information/documentation for markets not mentioned above, Please contact Huawei representative Huawei Proprietary and Confidential Issue (02) Copyright © Huawei Technologies Co., Ltd.

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