Avaya 555-233-116 manual Installing the expanded power distribution unit

Auxiliary power supplies

Installing the expanded power distribution unit

You can install a second power-distribution unit for additional 8400- and 8500- series terminals.

! CAUTION:

Total power cannot exceed 200 W. Consult the chart below for permissible terminal installations.

Table 7. Permissible terminal installations (total power < 200 W)

Terminal mix	Maximum numbers	Notes
7500-series + 8500-series ISDN	24 + 24
7400-series + 8400-series DCP	24 + 24
8400-series DCP	74
7400-series DCP	74	Average power per
		terminal must be
		less than 3.126 W

Each expanded power distribution unit kit supplies the following items:

■One power distribution unit

■One T-cable

■Two #8-32 x 1/2-in. shoulder screws

■One #8-32 x 1 in. screw

■One spacer bracket

See Figure 4 while installing the power distribution unit:

1.Fasten the spacer bracket to the mounting plate with the #8-32 x 1/2-in. shoulder screws.

The spacer bracket is not shown in the figure. It is behind the top power distribution unit.

2.Slide the keyhole slots in the power distribution unit over the shoulder screws.

3.Insert the #8-32 x 1 in. screw through the distribution unit, through the spacer bracket, and into the plate. Tighten the screw.

The mounting hole is located just above the wire clip.

4.Set the battery back-up switch to the 1-32 (down) position.

5.Power-down the 1145B as described on the label on the side of the unit.

36 Issue 4 October 2002 555-233-116