1145B power supply
Issue 4 October 2002 39555-233-116
Wire the 1146 power distribution unit
Wire endpoints to the 1146 while power from the 1145B is on.
1. Install cross-connect jumpers (the label show s polarity) to Pins 7 and 8 of
the appropriate information outlet. Route the wires through the clip
provided on the unit. If a red LED is on, see ‘‘Repairi ng short circuits and
resetting red LEDs’’ on page 40. Figure 5 shows the connections.
A red LED lights if the associated circuit is connected to sh orted wiring or a
shorted terminal.
Figure 5. Typical wiring to a terminal
2. Mark lead destinations, unit number, and connectivity information on the
label next to each connector.
1. Power sup ply kit
2. 2.5, 5 .0, or 8.0 A hour battery
3. 1146 power distribution unit
4. 1145B power supply
5. Circuits 1-17
6. Circuits 17 -32
7. Port circuit
8. Main di stribution frame
9. Modular cord
10. AC input
11. Ground wire
12. ISDN/ displ ay system protocol terminal
13. Circuits 1- 32
14. Pins 7 and 8 (display terminal power)
3
45
1
11
2
7
12
13
14
6
8
9 9
10
14