Install and Wire Telephone Power Supply
Important Warning for 1145B Power Supply
556
SI Installation and Upgrades
June 2004
2
Secure the unit by inserting the #8-32 x 1 inch screw through the bottom of the unit (just above
the wire clips) into the plate and tighten.
3
Set the battery back-up switch option to the 1-32 (down) position to provide battery back-up to all
outputs.
4
Connect the power distribution unit to the power supply with the power cable. Refer to the power
supply’s right-hand label to locate the output power connection.
Figure 221: Expanded Power Distribution Unit
Return to Task List
Figure notes
1
Wall-Mounting Plate
2
Second 1146B Power Distribution
Unit
3
“T” Cable (H600-347-G7)
4
First 1146B Power Distribution
Unit
5
1145B Power Unit
1 14 5 Pow e r U nit
11 49 B a tte r y
O n B a tte ry R e s e rve
C h a rg in g B a tte ry
O u tp u t Po w e r O n
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
-4 8V
-48V
R T N
R T N
U n it N o.
C o n ne c te d To :
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
-48V
-48V
R T N
R T N
U nit N o.
C on ne c te d To :
0 0 0 4 _ 1 P D H 0 6 2 5 9 6
