TP48200A-DX12A1 Telecom Power
User Manual
4 Maintenance
Issue 07 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
48
Step 2
Hold down the faulty AC SPD module and pull it out, as shown in Figure 4-11.
Step 3
Install a new AC SPD module, as shown in Figure 4-11.
Figure 4-11
Replacing an AC SPD module
Step 4
Disconnect the ground cable from the ESD wrist strap and take off the ESD wrist strap and
ESD gloves.
----End
Follow-up Procedure
Check that the alarm for the AC SPD is cleared.
4.4.7 Replacing a Direct Ventilation Fan
Prerequisites
You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the
cabinet door key, and tools.
The new fan is intact.
Install the fan according to airflow directions. Do not install the fan reversely.
Context
You need only to disconnect the fan power cable, but not the AC input to the system.
Procedure
Step 1
Disconnect the 48 V power cable from the UIM02C.
1.
Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and
ESD gloves.
2.
Record the positions of signal cables on the UIM02C, and disconnect the cables.
3.
Unscrew and remove the UIM02C, as shown in Figure 1.
