Specifications

180 Hardware Description and Reference for Avaya Communication Manager
I/O connections
The fourteen slots of the G650 are equipped with twisted pair cables. These cables run from the
backplane to the 25-pair type D, metal shelled I/O connector panel mounted on the rear of the
carrier. The power supply slots (0 and 15) do not provide external I/O connections.
I/O adapters
You can use any existing adapter for input and output if the associated TN circuit pack is
supported in the G650.
Fan assembly
The three-fan unit can operate at two different speeds:
● Mid speed for normal cooling
● High speed when a temperature threshold is exceeded or a fan failure is detected
Specifications
Power requirements
AC power
Commercial AC is the primary input power source. Both slot 0 and slot 15 have dedicated AC
input. The 655A power supply can operate on 90 - 264VAC AC input at 47 - 63Hz. The nominal
ranges for AC power are:
● 100 - 120VAC at 50 or 60Hz
● 200 - 240VAC at 50 or 60Hz
DC power
Minus 48VDC power can be supplied simultaneously as backup power. One -48VDC power
input point is provided on the G650 backplane and is distributed through the backplane to each
power supply.
Power output
Power supply output voltage measurements—+5VDC, -5VDC, and -48VDC