Connecting Mixed Ac/Dc Power And Ground - Avaya G650 Installing

4. Measure the voltage between the neutral and ground side of the receptacle. The ground
wire is green.
5. Verify the meter reads 0 VAC. If not, have a qualified electrician correct the problem.
6. Set all media gateway power modules OFF. Plug the AC power cable into the receptacle.

Connecting mixed AC/DC power and ground

Figure 39: Typical power and ground for a mixed AC/DC-powered media gateway
shows a power and ground layout for a mixed AC/DC-power MCC1 Media Gateway
configuration in the same equipment room, with the first media gateway being DC powered
and the next media gateway being AC powered. If a third media gateway is part of the
configuration, use the same basic connections.
Figure 39: Typical power and ground for a mixed AC/DC-powered media gateway
Figure notes:
1. DC power supply
2. Ground Discharge Bar
3. Approved Ground
4. 1 AWG up to 50 feet (15.2m) or engineered
for less than 0.5 volt drop per conductor
5. To Coupled Bonding Conductor terminal
block at Main Distribution Frame
100 Installing the Avaya G650 Media Gateway
4
3
1
75A
2
-48V
-48V -48V RTN
5
6
6. Coupled Bonding Conductor
7. Media Gateway ground block
8. AC power-distribution unit
9. AC power cord
10. AC power source
10
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9
8
7
on page 100
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