Lucent Technologies Release 6 manual Remote Power Off Cable Connections Part

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
1 Install and Connect Cabinets
Connect Remote Power Off Cable and External Alarm Cable	Page 1-26

! 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.

Figure 1-10 shows the cabling from the auxiliary contacts inside the EPO switch assembly and how they connect to the internal relay.

Power Distribution Unit

TB3

Battery			Relay		Shunt
			(K1)
Cabinet
Ground
Terminal	TB1			RPO Cable
Bar
	2	6

To Carriers A to E

Auxiliary Contacts

in EPO Switch

0026_3 RBP 080196

Figure 1-10. Remote Power Off Cable Connections — Part 2

1.Connect the RPO wires to the auxiliary contacts on the EPO switch. See Figure 1-10.

NOTE:

The EPO switch and the auxiliary contacts for the RPO connection are customer-supplied.