Replacing The Wmpt; Figure 5-3 Position Of The Wmpt In The Bbu - Huawei BBU3900 Hardware Maintenance Manual

BBU3900
Hardware Maintenance Guide
Postrequisite
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5.3 Replacing the WMPT

The WCDMA Main Processing & Transmission unit (WMPT) processes signals and manages
resources on other boards.
Prerequisite
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Context
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Procedure
Step 1 Instruct the M2000 administrator to perform the following preparations for the replacement of
the WMPT:
1.
2.
Step 2 Wear an ESD wrist strap or a pair of ESD gloves.
Issue 03 (2010-06-05)
Place the replaced component into the ESD box or bag. Then, place the ESD box or bag
into a carton padded with foam or into the packing box of the new component.
Fill in the fault form with the details of the replaced component.
Contact the local Huawei office to handle the faulty component.
The tools and materials, such as an ESD wrist strap or ESD gloves and M3 screwdriver,
are ready.
The type of board to be replaced and its quantity are confirmed. For details, see
Querying Board Information.
The authorized personnel are permitted to enter the site. The required keys are available.
Figure 5-3 shows the position of the WMPT in the BBU.

Figure 5-3 Position of the WMPT in the BBU

The WMPT is hot-swappable.
Replacing the WMPT disrupts all the services carried by the NodeB. Therefore, the WMPT
should be replaced within 10 minutes.
Back up the service data or transfer the service carried by the board to be replaced if
required.
Run the ULD CFGFILE command to upload the data configuration file of the NodeB to
the PC installed with the LMT.
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5 Replacing Components of the BBU3900
WMPT TX RX
RUN
ALM
ACT
GPS
E1/T1 RST
ETH FE0 FE1
USB TST
WMPT
5.1
5-5