122
Installing the Avaya S8700 Media Server with an Avaya G650 Media Gateway
December 2003
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
OFF
. Plug the AC power cable into the receptacle.
Connecting mixed AC/DC power and ground
Figure 36, Typical power and ground for a mixed AC/DC-powered media gateway,
on page 122 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 36: 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
6
Coupled Bonding Conductor
7
Media Gateway ground block
8
AC power-distribution unit
9
AC power cord
10
AC power source
-48V
-48V RTN
75A
PN
PN
-48V
cydf
acdi KLC 031202
1
2
3
4
6
7
5
8
9
10