Figure 8-18 Replacing a monitoring board
● The monitoring board with the BOM number 02311GDJ or 02311GDJ-002 can convert
AC into 12 V DC, and can be installed in all output modules of a cabinet.
● The monitoring board with the BOM number 02311GDJ-001 can be installed only in
output modules except output module 1.
Step 4 Install a new monitoring board.
Step 5 Close the two crowbars and tighten the two bolts on the monitoring board in turn.
----End
8.4.7 Replacing an MDU
Prerequisites
● Tools: Phillips screwdriver and key to the PDC cabinet door
● Materials: new intact MDU
The MDU can be replaced online without disconnecting the power supply.
Procedure
Step 1 Remove the communications cables from the MDU, as shown in Figure 8-19.
When removing cables, label the cables with corresponding terminal ports for later
connection.
Step 2 Remove the four screws xing the MDU and put them aside, as shown in Figure
8-19.
PDU8000 Modular Precision PDC V2.0
User Manual 8 Maintenance Guide
Issue 04 (2021-04-13) Copyright © Huawei Technologies Co., Ltd. 134
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