GE G30 Instruction Manual page 628

REPLACE FRONT PANEL
To replace the CPU module:
1. With power to the unit off, at the back of the CPU module in the second slot, disconnect any cables. Remove the silver
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SFP connector(s) from the CPU module, and keep it handy. Then remove the CPU module by sliding the module out
from the front of the relay. (See the next section for instructions.)
2. At the front of the relay, insert the new CPU module in the second slot. The new CPU has two connection slots on the
front. Ensure that the RS485 connector and the black cover plate are not on the back of the CPU module before sliding
the module into the front of the relay.
Figure 11-23: Rear of a CPU module before insertion without RS485 connector or cover plate
11-22
Figure 11-22: Remove silver SFP connector (shown here under LK1 label)
CHAPTER 11: MAINTENANCE
G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL