Installing the Avaya S8700 Media Server with an Avaya G650 Media Gateway
117
December 2003
Turning the circuit breakers off
The main circuit breaker on a DC powered MCC1 is located on the front of the PDU. The circuit breakers
on the rear of the PDU control the individual carriers.
1
Set the main circuit breaker to OFF.
2
Set the carrier circuit breakers to OFF.
3
Connect each remaining media gateway to the AC load center single-point ground.
Connecting DC power to the media gateways
1
Be sure the main circuit breaker is OFF.
2
Measure and cut two 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 VDC wire to the DC OUTPUT circuit breaker. See
Figure 36, Typical power and ground for a mixed AC/DC-powered media gateway,
on page 122.
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.
5
Connect the -48 VDC wire to the -48 VDC terminal on the J58890CF PDU.
6
Connect the -48 volt RTN wire to the -48 RTN terminal on the J58890CF PDU terminal block.
7
Repeat steps 2 through 6 for each cabinet and auxiliary cabinet in the system.
Hooking up AC Enhanced Rectifier Cabinet J58890R
For connection information, see the vendor documentation for the rectifier cabinet.
Connecting DC battery cabinet to DC power cabinet
NOTE:
The wire in the next step must be sized for a maximum voltage drop of 0.5 VDC in each
leg of the DC distribution. In this example, 1 AWG is used.
1
Turn off the main circuit breaker on the DC battery cabinet.
2
Turn off the main circuit breaker on the DC power cabinet.
3
Measure and cut a 6 AWG (#40) (16 mm
2
) wire long enough to reach from the DC battery
cabinet’s -48 VDC terminal to a DC OUTPUT distribution bus on the DC power cabinet.
4
At the DC battery cabinet, connect the -48 VDC wire to the -48 VDC connector.
5
Route the wire out of the cabinet through the hole in the lower rear cover and to the DC power
cabinet.
6
At the DC power cabinet, terminate the -48 VDC wire on a DC OUTPUT distribution bus.
AC Power Distribution Unit J58890CE
NOTE:
The type of power required is shown on the media gateway’s rear door.
The connect AC power and ground procedures apply to the AC-powered MCC1 Media Gateways.
