Huawei TP48200A-DT19D1 Telecom Power User Manual page 72

TP48200A-DT19D1 Telecom Power
User Manual
Context
You need only to disconnect the power cable from the TCUA, instead of the AC input to the
power system.
Procedure
Step 1 Connect the ground cable to the ESD wrist strap, and wear the ESD wrist strap and ESD
gloves.
Step 2 Remove the TCUA control box.
1.
2.
3.
Figure 4-14 Removing the TCUA
Step 3 Remove the TCUA control board.
1.
Issue 03 (2019-11-15)
Switch off the TCUA circuit breaker (beside battery circuit breaker) on the DC PDU.
Record the positions of cables on the TCUA, and disconnect the cables.
Unscrew and remove the TCUA, as shown in Figure 4-14.
Unscrew the TCUA control board, as shown in Figure 4-15.
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