AT&T 555-230-894 manual Wire the 1146B1 Power Distribution Unit, Typical Wiring to a Terminal

Wire the 1146B1 Power Distribution Unit

It may be better to wire endpoints to the 1146B1 while power from the 1145B1 is on. This way, a red light emitting diode (LED) on the distribution unit lights if you connect its associated circuit to shorted building wiring or to a shorted terminal.

1.Install cross-connect jumpers to wire from the Distribution Unit (the label shows polarity) to Pins 7 and 8 of the appropriate information outlet. Route the wires through the clip provided on the unit. If a red light emitting diode (LED) is on, see the next section Reset light emitting diodes (LED) on Power Distribution Unit. The following illustration shows a typical connection.

2.Mark lead destination on the label next to each connector on the Distribution Unit. Also mark the Unit Number and Connectivity information on the label.

1

4

5 7

1 17

6

16 32

3

2

10

8 9 9

12

11

Figure Notes:

1.	Alternating Current (AC)	8.	Private branch exchange Port Circuit
2.	Installer-provided ground wire	9.	Tip and Ring
3.	Circuits 1-32	10.	Pins 7 & 8
4.	Power supply kit	11.	Cross-Connect
5.	Battery	12.	Integrated Services Digital Network
6.	1145B1 Power Supply		(ISDN)/ Display System Protocol (DSP)
			Terminal
7.	1146B1 Distribution Unit

Figure 9-14. Typical Wiring to a Terminal

9-32Issue 1 September 1995