Connecting Mixed Ac/Dc Power And Ground - Avaya S8500 Manual

3
Verify the meter reads 106 to 128 VAC. If not, have a qualified electrician correct the problem.
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

Connecting mixed AC/DC power and ground

Figure 48, Typical power and ground for a mixed AC/DC-powered media gateway,
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 48: Typical power and ground for a mixed AC/DC-powered media gateway
3
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
158
4
1
75A
2
-48V
5
Installing the Avaya S8500 Media Server with an Avaya G650 Media Gateway
. Plug the AC power cable into the receptacle.
OFF
PN
-48V -48V RTN
6
6 Coupled Bonding Conductor
7 Media Gateway ground block
8 AC power-distribution unit
9 AC power cord
10 AC power source
on page 158 shows a
10
PN
9
8
7
December 2003