Avaya CMC1 manual Mounting the 1145B2/1146B2 Power Supply

Installing and Cabling the Cabinets

●Do not attempt to recharge batteries on your own. The batteries may leak corrosive electrolyte or explode. The 1145B2 power unit recharges the batteries safely.

●Remove the batteries if the power unit will not be used for a long period of time (several months or more) since during this time the battery may leak.

●Discard discharged batteries as soon as possible. Discharged batteries are more likely to leak.

●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 on page 99 shows how the standard power supply and wall-mounting plates fit together. Expanded Power Distribution Unit on page 100 shows the expanded power 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

6.25watts 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

98 Installation, Upgrades and Additions for Avaya CMC1 Media Gateways