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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. 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

Follow-up Procedure

l

Place the replaced optical module 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.

LampSite
Site Maintenance Guide

7 Replacing an Optical Module

Issue 02 (2014-05-27)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

22

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Содержание pRRU3901

Страница 1: ...LampSite Site Maintenance Guide Issue 02 Date 2014 05 27 HUAWEI TECHNOLOGIES CO LTD ...

Страница 2: ... 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 without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been made in the preparation of this document to ens...

Страница 3: ...0R009C00 and later versions Single mode versions mapping V100R009C00 l NodeB V200R016C00 l eNodeB V100R007C00 pRRU3901 referred to as pRRU in this document Intended Audience This document is intended for l System engineers l Site maintenance engineers Organization 1 Changes in LampSite Site Maintenance Guide This chapter provides information about the changes in different document versions of Lamp...

Страница 4: ...n 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 9 Replacing the Wi Fi Daughter Board This section describes the p...

Страница 5: ...ormation not related to personal injury equipment damage and environment deterioration General Conventions The general conventions that may be found in this document are defined as follows Convention Description Times New Roman Normal paragraphs are in Times New Roman Boldface Names of files directories folders and users are in boldface For example log in as user root Italic Book titles are in ita...

Страница 6: ...on Boldface Buttons menus parameters tabs window and dialog titles are in boldface For example click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder Keyboard Operations The keyboard operations that may be found in this document are defined as follows Format Description Key Press the key For example press Enter and press Tab Key 1 Key 2 Press th...

Страница 7: ...he 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 LampSite Site Maintenance Guide About This Document Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd vi ...

Страница 8: ...the RHUB 12 5 Powering On and Powering Off the pRRU 13 5 1 Powering On the pRRU 14 5 2 Powering Off the pRRU 15 6 Replacing the RHUB 16 7 Replacing an Optical Module 20 8 Replacing the RF Daughter Board 23 9 Replacing the Wi Fi Daughter Board 29 10 Replacing the pDock Mother Board 35 LampSite Site Maintenance Guide Contents Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei T...

Страница 9: ...FDD mode Compared with 01 2014 04 26 no information is deleted 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 change Content Change Description Entire document Changed the pRRU name from pRRU with two Ethernet ports to pRRU with two transmission ports and pRRU with th...

Страница 10: ... 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 topic l 9 Replacing the Wi Fi Daughter Board Compared with draft A 2013 11 30 this issue incorporates the following changes Content Change Description Entire document Added descriptions about pRRUs with three transmission ports Such pRRUs support...

Страница 11: ... 2013 11 30 this issue excludes the following topic l Replacing the pRRU Draft A 2013 11 30 This is a draft release LampSite Site Maintenance Guide 1 Changes in LampSite Site Maintenance Guide Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 ...

Страница 12: ...eported Temperature in the equipment room Each time maintenance is performed Record temperatures in the equipment room measured by a thermometer 5 C to 45 C Humidity in the equipment room Each time maintenance is performed Record humidity in the equipment room measured by a hygrometer 5 RH to 95 RH Lighting system in the equipment room Every other month Check whether the routine lighting system an...

Страница 13: ...are clean and tidy Equipment Maintenance Items Table 2 2 lists the equipment maintenance items Table 2 2 Equipment maintenance items Item Check Frequency Operation Reference Standard Fan in the PSU Monthly or quarterly Check whether the fan is working properly The fan works properly without any abnormal smell or sound Equipment surface Monthly or quarterly Check whether the equipment surface is in...

Страница 14: ...ystem and Grounding System Table 2 3 lists the maintenance items for the power system and grounding system Table 2 3 Maintenance items for the power system and grounding system 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...

Страница 15: ...round resistance tester to measure the ground resistance and record the measurement result The ground resistance is equal to or less than 10 ohms LampSite Site Maintenance Guide 2 RHUB Maintenance Items Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 7 ...

Страница 16: ...tact and the label of the cabinet is legible Equipment cleanness Monthly or quarterly Check whether the equipment is clean The equipment surface is clean Indicators Monthly or quarterly Check whether the indicators on the equipment are working properly For details about the indicator status see pRRU Ports and Indicators in LampSite Hardware Description Power System Maintenance Items Table 3 2 list...

Страница 17: ...ower 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 3 pRRU Maintenance Items Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 9 ...

Страница 18: ...n 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 4 Powering On and Powering Off the RHUB Issue 02 2014 05 27 Huawei P...

Страница 19: ...ly rectify the board fault and then power on the RHUB again Steady off There is no power input or an alarm about the board is reported Disable the power supply and check the power input again If the power input is normal rectify the board fault and then power on the RHUB again 1s on and 1s off The RHUB is running properly End the power on check task 0 125s on and 0 125s off The board software is b...

Страница 20: ...mal power off NOTICE Powering off the RHUB interrupts services and therefore perform associated operations before a power off 1 Remove the power plug to disconnect the RHUB with the external power input 2 If the RHUB is equipped with an external power device turn off the switch of the external power device l Emergency power off 1 Turn off the switch of the external power device End LampSite Site M...

Страница 21: ... 5 2 Powering Off the pRRU A pRRU 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 Powering On and Powering Off t...

Страница 22: ...onnecting to the local AC power module NOTICE If PoE is used and AC DC adapter is connected to the AC power module the pRRU automatically uses AC DC adapter to obtain power supply Note that the pRRU will be powered off and then powered on again if you pull the plug of the AC DC adapter power cable to use the PoE for power supply Step 2 Optional Check the power supply status for the pRRU This opera...

Страница 23: ...RRU 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 Procedure l Normal power off NOTICE Powering off the pRRU interrupts services and therefore pe...

Страница 24: ...h cabinet or in a 19 Inch Shelf NOTE The procedures for replacing the RHUB installed on a 19 inch rack are the same for replacing the RHUB installed in a 19 inch cabinet or in a 19 Inch Shelf The following uses the RHUB installed on a 19 inch rack as an example 1 Power off the RHUB by referring to 4 2 Powering Off the RHUB 2 Record the cable connections 3 Take insulation measures and then remove a...

Страница 25: ...ator status on the RHUB For details about the indicator status see RHUB Ports and Indicators in LampSite Hardware Description 10 Instruct the network operator to run the RST BRD command to reset the RHUB No further action is required l Replace the RHUB installed on a wall 1 Power off the RHUB by referring to 4 2 Powering Off the RHUB 2 Record the cable connections 3 Take insulation measures and th...

Страница 26: ...recorded installations 7 Power on the RHUB by referring to 4 1 Powering On the RHUB 8 Determine whether the new RHUB is working properly according to the indicator status on the RHUB For details about the indicator status see RHUB Ports and Indicators in LampSite Hardware Description 9 Instruct the network operator to run the RST BRD command to reset the RHUB No further action is required End Lamp...

Страница 27: ... 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 LampSite Site Maintenance Guide 6 Replacing the RHUB Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 19 ...

Страница 28: ...PRI1 ports on the RHUB panel l An optical module or CPRI fiber optic cable cannot be inserted into or removed from this CPRI port when the power supply is connected l Replacing an optical module involves removing an optical fiber and the faulty optical module installing a new optical module connecting the optical fiber to the optical module and recovering the links The operation takes about 10 min...

Страница 29: ... ring pull on the faulty optical module outwards Hold the ring pull and take the faulty optical module out of the slot to remove it from the CPRI0 or CPRI1 port Step 6 Connect a new optical module to the corresponding CPRI port as shown in Figure 7 2 Figure 7 2 Removing the optical module Step 7 Remove the dust proof caps from the optical module and optical fiber and connect the optical fiber conn...

Страница 30: ...er the optical fiber and optical module are securely installed Step 10 Take off the ESD gloves and pack up all the tools End Follow up Procedure l Place the replaced optical module 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 Huawe...

Страница 31: ...r board depends on the mode of the RF daughter board Figure 8 1 shows the slot for installing the RF daughter boards Figure 8 1 Slot for installing the RF daughter boards NOTE l Unless otherwise specified LTE mode in this document refers to LTE TDD and LTE FDD l The procedures for replacing an RF daughter board in different slots on the pRRU are the same The following section uses the procedures f...

Страница 32: ... Step 3 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 Step 4 Use the M4 Phillips screwdriver to loosen the Phillips screw on the pRRU housing Wrench and remove the housing from the installation position of the Phillips screw hole as shown in Figure 8 2 Figure 8 2 Removing the pRR...

Страница 33: ...n pulling the handle to prevent the RF daughter board from falling 1 Use the M4 Phillips screwdriver to loosen the Phillips screws on the RF daughter board in slot S1 as shown in Figure 8 3 Figure 8 3 Loosen the Phillips screws 2 Use the left hand to hold the RF daughter board and the right hand to hold the right handle of the RF daughter board to remove the RF daughter board and put it into an ES...

Страница 34: ...e 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 Figure 8 5 Installing the RF daughter board in slot S1 Step 7 Remove the SN label and mode label on the surface of the RF daughter board as shown in Figure 8 6 LampSite Site Maintenance Guide 8 Replacing the RF Daughter Board Issue 02 2014 05 27 Huawei Proprietary and C...

Страница 35: ...ore the removed mode label can be discarded Figure 8 7 Attaching the SN label Step 9 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 Use the M4 Phillips screwdriver to tighten the Phillips screw on the housing with a torque of 1 4 N m as shown in Figure 8 8 Figure 8 8 Installing t...

Страница 36: ...ock the RF daughter board of the pRRU Step 12 Take off the ESD gloves and pack up all the tools End Follow up Procedure l Place the replaced RF daughter board 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 ...

Страница 37: ...t S3 as shown in Figure 9 1 Figure 9 1 Slot for installing the Wi Fi daughter board Procedure Step 1 Instruct the network operator to block the pRRU 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 Step 2 Ask the AC administrator to change on the AC the MAC ...

Страница 38: ...he pRRU housing Wrench and remove the housing from the installation position of the Phillips screw hole as shown in Figure 9 2 Figure 9 2 Removing the pRRU housing NOTE l The pRRU housing and the Wi Fi daughter board can be secured using Phillips screws or protection screws requiring the same installation operations This section uses Phillips screws as an example l Keep the protection screw secure...

Страница 39: ...igure 9 3 Figure 9 3 Loosen the four fastening screws 2 Use the left hand to hold the Wi Fi daughter board and the right hand to hold the right handle of the Wi Fi daughter board to remove the Wi Fi daughter board and put it into an ESD box or bag as shown in Figure 9 4 LampSite Site Maintenance Guide 9 Replacing the Wi Fi Daughter Board Issue 02 2014 05 27 Huawei Proprietary and Confidential Copy...

Страница 40: ...rewdriver 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 Figure 9 5 Installing the Wi Fi daughter board in slot S1 Step 8 Remove the SN label and WIFI MAC labels on the surface of the Wi Fi daughter board as shown in Figure 9 6 Keep the labels secure LampSite Site Maintenance Guide 9 Replacing the Wi Fi Daughter Board Issue 02 2014 05 27 ...

Страница 41: ...NT5 as shown in Figure 9 7 NOTE If an SN label has been attached to the position for S3 label remove this label first Figure 9 7 Attaching the SN label and WIFI MAC label Step 11 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 Use the M4 Phillips screwdriver to tighten the Phillip...

Страница 42: ...ide 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 Step 14 Take off the ESD gloves and pack up all the tools End LampSite Site Maintenance Guide 9 Replacing the Wi Fi Daughter Board Issue 02 2014 05 27 Huawei Proprietary and Confident...

Страница 43: ...RU 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 is till very hot on the surface 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 P...

Страница 44: ...he pRRU as shown in step b in Figure 10 1 Figure 10 1 Removing the pRRU Step 6 Optional Remove the rubber plug from the Ethernet port as shown in Figure 10 2 Figure 10 2 Removing the rubber plug from the Ethernet port Step 7 Remove the four rubber plugs from holes of the installation support as shown in Figure 10 3 LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Issue 02 2014 0...

Страница 45: ... 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 Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 37 ...

Страница 46: ... daughter boards on the pRRU mother board as shown in Figure 10 6 The following section assumes that the pRRU has two RF daughter boards Figure 10 6 Recording the installation positions of RF daughter boards Step 11 Remove the RF daughter board in slot S1 and that in slot S2 in the same way NOTICE Hold the RF daughter board tightly when pulling the handle to prevent the RF daughter board from fall...

Страница 47: ...ghter 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 Figure 10 8 Removing the RF daughter board in slot1 and slot2 LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 39 ...

Страница 48: ...crews of the pDock mother board and remove the pDock mother board as shown in Figure 10 10 Figure 10 10 Removing the pDock mother board Step 14 Install a new pDock mother board and use the M3 Phillips screwdriver to tighten the four fastening screws to 0 8 N m as shown in Figure 10 11 LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Issue 02 2014 05 27 Huawei Proprietary and Con...

Страница 49: ...0 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 Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 41 ...

Страница 50: ...il 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 4 N m as shown in Figure 10 14 Figure 10 14 Installing the pRRU housing LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Issue 02 2014 05 27 Huawei Proprietary and Confidential Copyright ...

Страница 51: ...insert four rubber plugs into the holes of the installation support as shown in Figure 10 16 Figure 10 16 Assembling the installation support Step 20 Connect all the cables to the pRRU according to the recorded installations Step 21 Optional Insert the rubber plug into the Ethernet port as shown in Figure 10 17 LampSite Site Maintenance Guide 10 Replacing the pDock Mother Board Issue 02 2014 05 27...

Страница 52: ... to the eNodeB LMT and run the UBL BRD command to unblock the RF daughter board Step 25 Take off the ESD gloves and pack up all the tools End Follow up Procedure l Place the replaced pDock Mother Board 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 Co...

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