Step 7 Take off protective gloves.
----End
Follow-up Procedure
Pack the removed component, and return it to Huawei local warehouse.
7.5.2 Replacing an SMU11B
Prerequisites
●
An ESD wrist strap, ESD gloves, and ESD box or bag are available.
●
The new SMU is intact.
Procedure
Step 1 Connect the ground cable of the ESD wrist strap, and wear the ESD wrist strap and
ESD gloves.
Step 2 Record the cable connection positions on the SMU panel, remove the COM
communications cables, and remove the signal cable terminals.
Step 3 Pull out the handle of the SMU to remove it from the subrack.
Figure 7-16 Removing the old SMU
Step 4 Insert the SMU into the slot and slide it into the subrack along the guide rails.
Step 5 Push the handle upwards until it is in place.
Figure 7-17 Installing the new SMU
ETP4860-B1A2 Embedded Power
User Manual
7 Maintenance
Issue 04 (2021-01-05)
Copyright © Huawei Technologies Co., Ltd.
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