D20/D200
Installation and Operations Guide
GE Energy
994-0078-2.00-7 General
96
Full
Power-up and Test, continued
Procedure
Follow these steps to check that fail-over is functioning correctly for the event of
hardware failure:
Step Action
1
On the front of the RS-232 Panel, check that CCU A LED is
illuminated, which shows that CCU A is Active.
Note
: Both the PWR A and PWR B LEDs should be illuminated.
2
To simulate hardware failure, switch off the Active D20/D200 at the
main power switch on the front of the unit.
Results:
If the RS-232 is functioning correctly, then it will switch over
to the Standby unit and the CCU B LED will illuminate and
the CCU A LED will go off.
3
Verify the fail-over. See “Procedure”, page 98.
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