TP48200A-DT19C1, TP48200A-DT19C2,
TP48200A-HT19C1 and TP48200A-HT19C2 Telecom
Power
User Manual
4 Maintenance
Issue 03 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
75
1.
Secure the external circulation fan to the fan fixing plate using screws.
2.
Install the fan fixing plate.
3.
Install the cover for the external circulation fan.
4.
Connect the removed cables to the external circulation fan based on the recorded
positions.
Step 5
Switch on the circuit breaker (F10) for the TCUA control box on the DC PDU.
Step 6
Disconnect the ground cable from the ESD wrist strap, and take off the ESD wrist strap and
ESD gloves.
----End
4.4.8 Replacing a Fan Assembly (for the TP48200A-DC1 & DC2)
Prerequisites
Prepare an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the cabinet door
key, and a maintenance tool kit.
Check that the new fan is intact.
Context
You only need to disconnect the power cable from the fan, but do not need to disconnect the
AC input.
Procedure
Step 1
Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and ESD
gloves.
Step 2
Disconnect the power cable from the UIM02C.
1.
Record the position where the UIM02C panel connects to the signal cable, and then
disconnect the signal cable.
2.
Unscrew and then take out the UIM02C panel, as shown in Figure 4-8.
3.
Disconnect the -48 V power cable from the UIM02C backplane, as shown in Figure 4-9.
Step 3
Take out the fan assembly.
1.
Record the positions where cables connect to the fan assembly and then disconnect the
cables.
2.
Unscrew and take out the fan assembly, as shown in Figure 4-17.