Avaya MCC1 Installation And Upgrades page 558

Install and Wire Telephone Power Supply
Important Warning for 1145B Power Supply
1
Set the spacer bracket onto the mounting plate and secure with the #8-32 x 1/2-inch shoulder
screws. The spacer bracket is not shown in the figure but is installed 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 inch screw through the distribution unit, through the spacer bracket, and into
the plate. The mounting hole is located just above the wire clip. Tighten the screw securely.
4
Set the battery back-up switch to the 1-32 (down) position.
5
Power-down the 1145B unit as described on the label on the side of the unit.
6
Remove the output power cable between the 1145B and the 1146B units. The cable will not be
reused.
7
Connect the P1 connector end of the "T" cable to the bottom power distribution unit. Connect the
P2 connector to the top distribution unit. Connect the P3 connector to the 1145B.
8
Power-up the 1145B as described on the label on the side of the unit.
Figure 222: Expanded Power Distribution Unit
Figure notes
1 Wall-Mounting Plate
2 Second 1146B Power Distribution Unit
3 "T" Cable (H600-347-G7)
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558
1149 Battery
O n Battery R eserve
1145 Power U nit
C harging B attery
O utput Pow er O n
4
5
-4 8V -4 8V
1 17
RT N RT N
2 18
3 19
4 20
5 21
6 22
7 23
8 24
9 25
10 26
11 27
12 28
13 29
14 30
15 31
16 32
U nit N o.
C onnected To:
-4 8V -4 8V
1 17
R T N RT N
2 18
3 19
4 20
5 21
6 22
7 23
8 24
9 25
10 26
11 27
12 28
13 29
14 30
15 31
16 32
U nit N o.
C onnected To:
0004_1 PD H 062596
First 1146B Power Distribution
Unit
1145B Power Unit
SI Installation and Upgrades
June 2004