91
Installing an Avaya MCC1 Media Gateway
October 2002
2 Route the opposite end of the wires to the EPO switch. The opposite end of the RPO
cable connects to the internal relay.
NOTE:
The EPO switch and the auxiliary contacts (inside the EPO switch assembly) are
customer-provided.
!
CAUTION:
The auxiliary contacts inside the EPO switch assembly must close when the switch is
pressed. This contact closure energizes the relay inside the power distribution unit,
causing the connection to the battery holdover assembly to open.
‘‘External Alarm Cable Connection’’ on page 93
shows the cabling from the auxiliary
contacts inside the EPO switch assembly and how they connect to the internal relay.
3 Connect the RPO wires to the auxiliary contacts on the EPO switch. See ‘‘External
Alarm Cable Connection’’ on page 93.
NOTE:
The EPO switch and the auxiliary contacts for the RPO connection are customer-supplied.
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