Install and Wire Telephone Power Supply
Important Warning for 1145B Power Supply
560
SI Installation and Upgrades
June 2004
2
Mark lead destinations on the label next to each connector. Also mark the Unit Number and
Connectivity information on the label.
Figure 223: Typical Wiring to a Terminal
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Reset LEDs on Power Distribution Unit
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A red LED next to any of the 32 power output connectors indicates a short circuit in the building wiring
or the terminal equipment. To reset the LED:
1
Disconnect the terminal equipment from the wall jack.
2
If the LED goes off, the terminal equipment is faulty and must be replaced. If the LED is still lit,
find and repair the short circuit in the building wiring.
3
Reconnect the terminal equipment to the wall jack and re-test terminal equipment operation.
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3
4
5
1
11
2
7
12
13
14
6
8
9
9
10
14
Figure notes
1
Power Supply Kit
2
2.5, 5.0, or 8.0 Amp Hour Battery
3
1146B Distribution Unit
4
1145B Power Supply
5
Circuits 1-16
6
Circuits 17-32
7
Port Circuit
8
Main Distribution Frame
9
Modular Cord
10
Pins 7 and 8 (Display Terminal Power)
11
AC Input
12
Installer-Provided Ground Wire
13
ISDN/ Display System Protocol Terminal
14
Circuits 1-32
