TP48200A-D17A5-2 Telecom Power
User Manual
4 Maintenance
Issue 04 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
39
Ensure that loads are supplied with power when replacing major components. For example,
keep the switches for primary loads in the ON position, and do not turn off the battery
switch and AC input switch at the same time.
Seek the customer's prior consent if load disconnection is required.
Rectifiers and the SMU are hot-swappable.
4.3.1 Replacing a Rectifier
Prerequisites
You have obtained a pair of protective gloves and the cabinet door key.
The new rectifier is intact.
Protect yourself from being burnt when moving the rectifier because the rectifier has a high
temperature.
Procedure
Step 1
Put on protective gloves.
Step 2
Push the locking latch at the right side of the panel towards the left.
Step 3
Gently draw the handle outwards, and then remove the rectifier from the subrack, as shown in
Figure 4-1.
Figure 4-1
Removing a rectifier
Step 4
Push the locking latch on the new rectifier towards the left, and pull out the handle.
Step 5
Place the new rectifier at the entry to the correct slot.
Step 6
Gently slide the converter into the slot along guide rails until it is engaged. Close the handle,
and push the locking latch towards the right to lock the handle, as shown in Figure 4-2.