Avaya CMC1 Installation Manual page 86

Installing and Cabling the Cabinets
Install and Wire Telephone Power Supplies
•
Do not store batteries in high temperature areas. Batteries stored in a cold environment should be
protected from condensation during storage and warming. Batteries should be stabilized at room
temperature prior to use after cold storage. Do not install batteries if the manufacturing date on the
label indicates that the batteries are more than six months old.
Mounting the 1145B2/1146B2 Power Supply
1145B2/1146B2 Mounting Arrangement
mounting plates fit together.
supply components (power distribution unit and "T" cable).
A manual switch on the distribution unit allows the user to redirect reserve power to outputs 1 through 32
so all outputs are provided battery reserve power or to outputs 1 through 8 to provide high power above
6.25 watts.
NOTE:
The switch must be set to the 1-32 position.
The 1145B22/1146B2 is a -48 V power supply with 275 watts total output. Each output circuit is current
limited by a Polymer Positive Temperature Coefficient Resistance Device (PTC) that limits the maximum
output to 12 watts. Each 1146B2 output has an LED to indicate the status of the PTC. If the LED is on,
the PTC has a short on that power pair.
Not all outputs can simultaneously provide 12 watts. The average power per output cannot exceed 8.6
watts (275/32 = 8.6). The 1145B22 is designed to power one ISDN terminal or DCP adjunct per output.
The maximum number of terminals or adjuncts is 32 at less than or equal to 6.25 watts each. The
1145B22 is required for installations outside the United States.
Auxiliary power (local or bulk) is always required for the following:
•
Attendant Console 302D
•
PassageWay adapter interface
86
on page 87 shows how the standard power supply and wall-
Expanded Power Distribution Unit
Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
on page 88 shows the expanded power
June 2004