Avaya S8700 - Connect DC Power to the Media Gateways

88
Installing an Avaya MCC1 Media Gateway
October 2002
Power Distribution Unit (J58890CH)
Figure notes
1 Connect small battery holdover cable (or temperature sensor cable from large battery
cabinet) to J20
2 Carrier Circuit Breakers
3 Ground Terminal Block
4 Connect -48 VDC Return - 1 AWG (50 mm
2
) red cable here.
5 Connect -48 VDC - 1 AWG (50 mm
2
) black cable
6 1 AWG (50 mm
2
) 50 ft. (15.2 m) cable to large battery cabinet. For cables greater than 50
ft. (15.2 m), contact your Avaya representative.
7 Ground Terminal Block
8 To AC load center or approved single-point ground block
Connect DC Power to the Media Gateways
1 Be sure the main circuit breaker is OFF.
2 Measure and cut 2 pieces of 1 AWG (#70) (44 mm
2
) wire long enough to reach from the
DC power cabinet to the first media gateway.
3 At the DC power cabinet, connect the -48 volt DC wire to the DC OUTPUT circuit
breaker. See ‘‘Typical Power and Ground for a DC power cabinet’’ on page 82
. Connect
the -48 volt RTN (return) wire to the ground discharge bar.
4 Route the wires out of the cabinet, through the hole in the lower rear cover, and to the
first media gateway.
External Alarms
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