Avaya MCC1 Installation And Upgrades page 557

Install the Battery Mounting/Wiring
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Three types of back-up batteries are used. See
and rating.
1
Insert two #10-32 x 1/2-inch shoulder screws into the top designated battery holes on the wall
mounting plate. Lightly screw in but do not tighten.
2
Place the keyhole slots in the battery bracket on these two screws. The battery cord exits from the
right of the bracket. Make sure the label on the battery is visible. Tighten the screws securely.
3
Plug the battery cord into the power supply's right rear receptacle. The rear receptacle is indicated
on the right label.
Back-Up Battery Rating
Battery
1148B
1149B
1147B
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Install the Expanded Power Distribution Unit
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A second power distribution unit can be installed to provide power to additional devices.
CAUTION:
Total power cannot exceed 275 Watts. The maximum ISDN terminal mixture is twenty
four 7500-series and twenty four 8500-series terminals.
The maximum DCP terminal mixture is twenty four 7400-series and twenty four 8400-
series or sixty four 8400-series terminals.
The expanded power distribution unit kit contains:
•
One 1146B Power Distribution Unit
•
One "T" Cable
•
Two #8-32 x 1/2-inch Shoulder Screws
•
One #8-32 x 1 inch Screw
•
One Spacer Bracket
Refer to Figure 222, Expanded Power Distribution Unit,
distribution unit.
SI Installation and Upgrades
June 2004
Rating
2.5 amp-hours
5 amp-hours
8 amp-hours
Install and Wire Telephone Power Supply
Important Warning for 1145B Power Supply
Back-Up Battery Rating on page 557 for the battery type
on page 558 while installing the power
557