LampSite Site Maintenance Guide Issue 02 Date 2014-05-27 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.
LampSite Site Maintenance Guide About This Document About This Document Overview This document describes routine maintenance items for a RHUB3908 and pRRU3901, such as equipment maintenance, and power-on and power-off operations. It also explains how to replace the components and modules. Product Version The following table lists the product version related to this document.
LampSite Site Maintenance Guide About This Document This chapter describes the RHUB maintenance items, involving the equipment room, equipment, power system, and grounding system. 3 pRRU Maintenance Items This chapter describes the pRRU maintenance items, involving equipment and power system. 4 Powering On and Powering Off the RHUB After the RHUB is powered on, check the indicator status. Power off the RHUB in normal or emergency mode as required.
LampSite Site Maintenance Guide About This Document 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.
LampSite Site Maintenance Guide About This Document Convention Description [] Items (keywords or arguments) in brackets [ ] are optional. { x | y | ... } Optional items are grouped in braces and separated by vertical bars. One item is selected. [ x | y | ... ] Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected. { x | y | ... }* Optional items are grouped in braces and separated by vertical bars.
LampSite Site Maintenance Guide Issue 02 (2014-05-27) About This Document Action Description Click Select and release the primary mouse button without moving the pointer. Double-click 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. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
LampSite Site Maintenance Guide Contents Contents About This Document.....................................................................................................................ii 1 Changes in LampSite Site Maintenance Guide.......................................................................1 2 RHUB Maintenance Items...........................................................................................................4 3 pRRU Maintenance Items...............................................
LampSite Site Maintenance Guide 1 1 Changes in LampSite Site Maintenance Guide Changes in LampSite Site Maintenance Guide This chapter provides information about the changes in different document versions of LampSite Site Maintenance Guide. 02 (2014-05-27) This is the second commercial release. Compared with 01 (2014-04-26), no information is added.
LampSite Site Maintenance Guide 1 Changes in LampSite Site Maintenance Guide Content Change Description 10 Replacing the pDock Mother Board Changed the pDock name from pDock with two Ethernet ports to pDock with two transmission ports, and pDock with three Ethernet ports to pDock with three transmission ports. Compared with Draft C (2014-03-26), this issue excludes the following topic: l Replacing a PSU Draft C (2014-03-26) This is a draft release.
LampSite Site Maintenance Guide 1 Changes in LampSite Site Maintenance Guide Content Change Description 9 Replacing the Wi-Fi Daughter Board Compared with draft A (2013-11-30), this issue excludes the following topic: l Replacing the pRRU Draft A (2013-11-30) This is a draft release. Issue 02 (2014-05-27) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
LampSite Site Maintenance Guide 2 RHUB Maintenance Items 2 RHUB Maintenance Items This chapter describes the RHUB maintenance items, involving the equipment room, equipment, power system, and grounding system. Equipment Room Maintenance Items Table 2-1 lists the equipment room maintenance items.
LampSite Site Maintenance Guide 2 RHUB Maintenance Items Item Check Frequency Operation Reference Standard Disaster protection devices Every one month Check whether the disaster protection, equipment protection, and firefighting devices are normal. l The equipment room is equipped with portable foam-type extinguishers, and the pressure and expiration date must be checked. l The equipment room has no mice, ants, flying insects, or other risks.
LampSite Site Maintenance Guide 2 RHUB Maintenance Items Item Check Frequency Operation Reference Standard Indicators Monthly or quarterly Check whether the indicators on the equipment are working properly. For details about the indicator status, see RHUB Ports and Indicators in LampSite Hardware Description. Electrostatic discharge (ESD) wrist strap Quarterly Check the ESD wrist strap in either of the following ways: If you use an ESD wrist strap tester, the GOOD indicator is on.
LampSite Site Maintenance Guide Issue 02 (2014-05-27) 2 RHUB Maintenance Items Item Check Frequency Operation Reference Standard Ground resistance Monthly or quarterly Use a ground resistance tester to measure the ground resistance and record the measurement result. The ground resistance is equal to or less than 10 ohms. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
LampSite Site Maintenance Guide 3 pRRU Maintenance Items 3 pRRU Maintenance Items This chapter describes the pRRU maintenance items, involving equipment and power system. Equipment Maintenance Items Table 3-1 lists the equipment maintenance items for the pRRU. Table 3-1 Equipment maintenance items Item Check Frequency Operation Reference Standard Equipment surface Monthly or quarterly Check whether the equipment surface is intact.
LampSite Site Maintenance Guide 3 pRRU Maintenance Items Table 3-2 Power system maintenance items Issue 02 (2014-05-27) Item Check Frequency Operation Reference Standard Power cables Monthly or quarterly Check the power cable connections. The power cables are securely connected and not deteriorating. The joints are not corroded. Voltage Monthly or quarterly Use a multimeter to measure the voltage of the power supply. The voltage is in the permissible range.
LampSite Site Maintenance Guide 4 4 Powering On and Powering Off the RHUB Powering On and Powering Off the RHUB About This Chapter After the RHUB is powered on, check the indicator status. Power off the RHUB in normal or emergency mode as required. 4.1 Powering On the RHUB The RHUB is powered by AC input. 4.2 Powering Off the RHUB An RHUB can be powered off in two ways: normal power-off and emergency power-off.
LampSite Site Maintenance Guide 4 Powering On and Powering Off the RHUB 4.1 Powering On the RHUB The RHUB is powered by AC input. Prerequisites The power cable of the RHUB is not connected to power, that is, the power plug is removed. Context NOTICE The RHUB must be powered on within 7 days after it is unpacked, and the period of its poweroff state cannot exceed 7 days during maintenance. Procedure Step 1 Insert the power plug to power on the RHUB. Step 2 Wait 3 to 5 minutes.
LampSite Site Maintenance Guide 4 Powering On and Powering Off the RHUB 4.2 Powering Off the RHUB An RHUB can be powered off in two ways: normal power-off and emergency power-off. 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.
LampSite Site Maintenance Guide 5 5 Powering On and Powering Off the pRRU Powering On and Powering Off the pRRU About This Chapter After the pRRU is powered on, check the power supply voltage and indicator status. Power off the pRRU based on the power supply mode. 5.1 Powering On the pRRU After the pRRU is powered on, check its running status by observing the indicator status. 5.2 Powering Off the pRRU A pRRU can be powered off in two ways: normal power-off and emergency power-off.
LampSite Site Maintenance Guide 5 Powering On and Powering Off the pRRU 5.1 Powering On the pRRU After the pRRU is powered on, check its running status by observing the indicator status. Prerequisites The pRRU and the cables are correctly installed. Context NOTICE The pRRU must be powered on within 7 days after it is unpacked, and the period of its poweroff state cannot exceed 7 days during maintenance. Procedure Step 1 Power on the pRRU.
LampSite Site Maintenance Guide 5 Powering On and Powering Off the pRRU If the RUN Indicator Is... It Indicates that... Then... Steady on There is power input, but the board is faulty. Disable the power supply, rectify the board fault, and then power on the pRRU again. Steady off There is no power input. Disable the power supply and check the power input again. On for 1s and off for 1s The pRRU is running properly. End the power-on check task. On for 0.125s and off for 0.
LampSite Site Maintenance Guide 6 Replacing the RHUB 6 Replacing the RHUB The RHUB is an indoor convergence unit. It converges multiple pRRUs to the BBU. Replacing the RHUB interrupts services carried on the serving cell. Prerequisites l A new RHUB is available. l The labels and connections of the cables connected to the RHUB are recorded. l The following tools are available: a Phillips screwdriver, an ESD wrist strap, and a rubber mallet. Context It takes about 10 minutes to replace the RHUB.
LampSite Site Maintenance Guide 6 Replacing the RHUB Figure 6-1 Removing the mounting ear 5. Remove the RHUB from the rack. 6. Install the new RHUB. For details, see LampSite Installation Guide. NOTICE Take proper ESD protection measures, such as wearing an ESD wrist strap or ESD gloves to prevent electrostatic damage to the boards, modules, or electronic components. 7. Connect all the cables to the new RHUB according to the recorded installations. 8. Power on the RHUB by referring to 4.
LampSite Site Maintenance Guide 6 Replacing the RHUB Figure 6-2 Removing the mounting ear 5. Install the new RHUB on a wall. For details, see LampSite Installation Guide. NOTICE Take proper ESD protection measures, such as wearing an ESD wrist strap or ESD gloves to prevent electrostatic damage to the boards, modules, or electronic components. 6. Connect all the cables to the new RHUB according to the recorded installations. 7. Power on the RHUB by referring to 4.1 Powering On the RHUB. 8.
LampSite Site Maintenance Guide 6 Replacing the RHUB Follow-up Procedure l Place the replaced RHUB into an ESD box or bag. Then, place the ESD box or bag into a foam-padded carton or the packing box of the new optical module. l Record the information about the faulty component in the fault card. l Contact the local Huawei office to deal with the faulty component. Issue 02 (2014-05-27) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
LampSite Site Maintenance Guide 7 Replacing an Optical Module 7 Replacing an Optical Module An optical module provides a port for opto-electronic conversion. This enables the transmission between the RHUB and BBU through the optical fiber. Replacing the optical module requires removing the optical fibers. This interrupts all the services. Prerequisites l The number and type of faulty optical modules are confirmed, and new optical modules are available.
LampSite Site Maintenance Guide 7 Replacing an Optical Module CAUTION After removing the optical fiber from the optical module, do not look directly at the optical modules without eye protection. Step 4 Press the latch on the connector of the optical fiber connector, and remove the connector from the faulty optical module, use the dust-proof cap to protect the optical fiber, as shown in Figure 7-1. Figure 7-1 Removing the optical fiber Step 5 Turn the ring-pull on the faulty optical module outwards.
LampSite Site Maintenance Guide 7 Replacing an Optical Module Step 8 Power on the RRU according to the instructions in 4.1 Powering On the RHUB. Step 9 Check whether CPRI signal transmission recovers by observing the CPRI indicator on the RHUB panel. If... Then... The CPRI indicator is green CPRI signal transmission recovers and the optical fiber replacement is successful. The CPRI indicator is red or in another color CPRI signal transmission is abnormal.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board 8 Replacing the RF Daughter Board This section describes the procedures for replacing the RF daughter board of the pRRU. A pRRU can have two transmission ports or three transmission ports, requiring the same installation operations. This section uses the pRRU with three transmission ports as an example. Replacing an RF daughter board interrupts all the services carried on the pRRU.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board l On the UMTS side, log in to the LMT and run the BLK BRD command to block the RF daughter board. l On the LTE side, log in to the LMT and run the BLK BRD command to block the RF daughter board. CAUTION A pRRU that has just been powered off has afterheat. Take scald-proof measures when removing the modules. Step 2 Power off the pRRU by referring to 5.2 Powering Off the pRRU. Step 3 Wear ESD gloves.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board NOTE l The pRRU housing and the RF daughter board can be secured using either Phillips screws or protection screws, requiring the same installation operations. This section uses Phillips screws as an example to describe the installation operations. l Keep the Phillips screw secure for future use. Step 5 Remove the RF daughter board installed in slot S1.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board Figure 8-4 Removing the RF daughter board installed in slot S1 Step 6 Install a new RF daughter board in slot S1. Level the handles of an RF daughter board of the required mode, and insert the handles separately in the two dowels of slot S1, and use the M4 Phillips screwdriver to tighten the Phillips screws on the RF daughter board with a torque of 1.4 N•m, as shown in Figure 8-5.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board Figure 8-6 Removing the SN label and mode label Step 8 Attach the removed SN label to the corresponding position for S1 label on the nameplate side of the pRRU housing, as shown in Figure 8-7. NOTE l If an SN label has been attached to the position for S1 label, remove this label first. l The RF daughter board replacement described herein does not involve any mode change.
LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board NOTE The Phillips screw is the one removed and kept in Step 4. Step 10 Power on the pRRU by referring to 5.1 Powering On the pRRU. Step 11 Instruct the network operator to unblock the pRRU. l On the UMTS side, log in to the NodeB LMT and run the UBL BRD command to unblock the RF daughter board of the pRRU. l On the LTE side, log in to the eNodeB LMT and run the UBL BRD command to unblock the RF daughter board of the pRRU.
LampSite Site Maintenance Guide 9 9 Replacing the Wi-Fi Daughter Board Replacing the Wi-Fi Daughter Board This section describes the procedures for replacing the Wi-Fi daughter board, which applies only to a pRRU with three transmission ports.Replacing an Wi-Fi daughter board interrupts all the services carried on the pRRU. Prerequisites The replacement takes approximately 5 minutes.
LampSite Site Maintenance Guide 9 Replacing the Wi-Fi Daughter Board CAUTION A pRRU that has just been powered off has afterheat. Take scald-proof measures when removing the Wi-Fi daughter board. Step 3 Power off the pRRU by referring to 5.2 Powering Off the pRRU. Step 4 Wear ESD gloves. NOTICE Take proper ESD protection measures. For example, wear ESD gloves to prevent electrostatic damage to the boards, modules, or electronic components.
LampSite Site Maintenance Guide 9 Replacing the Wi-Fi Daughter Board NOTICE Hold the Wi-Fi daughter board tightly when pulling the handle to prevent the Wi-Fi daughter board from falling. 1. Use the M4 Phillips screwdriver to loosen the Phillips screws on the Wi-Fi daughter board in slot S3, as shown in Figure 9-3. Figure 9-3 Loosen the four fastening screws 2.
LampSite Site Maintenance Guide 9 Replacing the Wi-Fi Daughter Board Figure 9-4 Removing the Wi-Fi daughter board installed in slot S3 Step 7 Install a new Wi-Fi daughter board in slot S3. Level the handles of a Wi-Fi daughter board of the required mode, and insert the handles separately in the two dowels of slot S3, and use the M4 Phillips screwdriver to tighten the Phillips screws on the Wi-Fi daughter board with a torque of 1.4 N•m, as shown in Figure 9-5.
LampSite Site Maintenance Guide 9 Replacing the Wi-Fi Daughter Board Figure 9-6 Removing the SN label and WIFI MAC labels Step 9 Attach one WIFI MAC label to MAC Collection Template and report the WIFI MAC information to the commissioning personnel.
LampSite Site Maintenance Guide 9 Replacing the Wi-Fi Daughter Board Figure 9-8 Installing the pRRU housing NOTE The Phillips screw is the one removed and kept in Step 5. Step 12 Power on the pRRU by referring to 5.1 Powering On the pRRU. Step 13 Instruct the network operator to unblock the pRRU. l On the UMTS side, log in to the NodeB LMT and run the UBL BRD command to unblock the RF daughter board of the pRRU.
LampSite Site Maintenance Guide 10 10 Replacing the pDock Mother Board Replacing the pDock Mother Board This section describes the procedure for replacing the pDock mother board. Replacing the pDock mother board of a pRRU will interrupt all services carried on the pRRU. A pDock mother board can have two transmission ports or three transmission ports, requiring the same installation operations. This section uses the pDock mother board with three transmission ports as an example.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Step 4 Record connection positions of all pRRU cables, and then remove the cables. Step 5 Removing the pRRU. Hold the pRRU case in one hand and pull the hoist clamp on the mounting bracket with the other hand, as shown in step a in Figure 10-1. Then, remove the mounting bracket from the pRRU, as shown in step b in Figure 10-1.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Figure 10-3 Removing rubber plugs from the installation support Step 8 Use an M4 Phillips screwdriver to loosen the Phillips screws for the installation support, and remove the support, as shown in Figure 10-4. Figure 10-4 Removing the installation support Step 9 Use an M4 Phillips screwdriver to loosen the Phillips screw on the pRRU housing, and remove the housing, as shown in Figure 10-5.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Figure 10-5 Removing the pRRU housing NOTE l The pRRU housing and the RF daughter board can be secured using either Phillips screws or protection screws, requiring the same installation operations. This section uses Phillips screws as an example to describe the installation operations. l Keep the Phillips screw secure for future use. Step 10 Record positions of the RF daughter boards on the pRRU mother board, as shown in Figure 10-6.
LampSite Site Maintenance Guide 1. 10 Replacing the pDock Mother Board Use an M4 Phillips screwdriver to loosen the Phillips screws on the RF daughter board, as shown in Figure 10-7. Figure 10-7 Removing Phillips screws 2. Hold the RF daughter board with one hand and pull its handle with another hand to remove the board, and place the board in an ESD bag, as shown in Figure 10-8.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Step 12 Use an M3 Phillips screwdriver to loosen the two fastening screws of the light pipe, and remove the light pipe, as shown in Figure 10-9. Figure 10-9 Removing the light pipe Step 13 Use the M3 Phillips screwdriver to loosen the four fastening screws of the pDock mother board, and remove the pDock mother board, as shown in Figure 10-10.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Figure 10-11 Installing a new pDock mother board Step 15 Install the light pipe, and use the M3 Phillips screwdriver to tighten the two fastening screws to 0.8 N•m, as shown in Figure 10-12. Figure 10-12 Installing the light pipe Step 16 Install the RF daughter boards in slots S1 and S2, and use the M4 Phillips screwdriver to tighten the two fastening screws always carried on each daughter board to 1.4 N•m, as shown in Figure 10-13.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Figure 10-13 Installing the RF daughter boards NOTICE The installation positions of the RF daughter boards must be consistent before and after the replacement. Step 17 Close the pRRU housing and tamp each side of the housing until a click is heard. Ensure that the groove gaps between the front and back housings are evenly distributed. Then, use the M4 Phillips screwdriver to tighten the Phillips screw on the housing to 1.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board NOTE The Phillips screw is the one removed and kept in Step 9. Step 18 Assemble the installation support, and use the M4 Phillips screwdriver to tighten the four fastening screws to 2 N•m, as shown in Figure 10-15. Figure 10-15 Assembling the installation support Step 19 Neatly insert four rubber plugs into the holes of the installation support, as shown in Figure 10-16.
LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Figure 10-17 Assembling the installation support Step 22 Install the pRRU. The installation must be based on different scenarios. For details, see LampSite Installation Guide. Step 23 Power on the pRRU by referring to 5.1 Powering On the pRRU. Step 24 Instruct the network operator to unblock the pRRU. l On the UMTS side, log in to the NodeB LMT and run the UBL BRD command to unblock the RF daughter board.
