Specifications

Appendix A: Specifications for DEFINITY media gateways
400 Hardware Description and Reference for Avaya Communication Manager
The GMCC power architecture offers both short-term and long-term power backup. Batteries
inside the MCC1 provide short-term backup. External battery cabinets provide long-term
backup. Therefore, the GMCC significantly reduces or eliminates the need for UPS and DC
battery plants for most customer applications.
AC power
Power feeders from a dedicated power source that is usually located outside the building
connect to an AC load center. These feeders do not provide power to other equipment. The AC
load center distributes the power to receptacles. The power cords from the AC power
distribution unit in each MCC1 and the AC power supply in each SCC1 plugs into a receptacle.
60-Hz power sources
Each of the following power sources can supply 60-Hz power to the AC load. The following
figures contain information on 120-VAC to 240-VAC power sources.
Figure 81: Single-phase, 120- to 240-VAC, 60-Hz source
120 240
120
Ph
ase
A
Ground
Neutral
Phase B
To equipment roo
m
AC load center
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