AT&T 555-230-894 manual Txr Txr5 Pxt Pxt5 Pxr Pxr5

Install and Wire Telephones and Other Equipment

auxiliary connector. When possible, the primary console should be powered from the system cabinet so it has the same power failure backup as the system itself.

The maximum cabling distance for the console powered from the cabinet is 350 feet (100 meters).

The general steps to connect a telephone are as follows:

1.Choose a telephone or peripheral to connect such as Attendant Console 302B.

2.Choose the port circuit pack to use (from circuit pack information provided in Table 9-7 on page 9-13)and its carrier and slot number. (TN754, Cabinet 1, Carrier C, Slot 02).

3.Choose a port circuit on the port circuit pack (such as Port 05).

4.Install cross-connect jumpers to wire the named pinouts on the terminal to the like-named pinouts on the port board, as shown in Table 9-1and Figure 9-1.

This pinout information is taken from Table 9-7for the 302B (4-wire) and Table 9-8and Table 9-9for the TN754B circuit pack.

5.Administer on the console screen of the Management Terminal (G3- MT).

The wiring designations are listed in Table 9-1and are illustrated in Figure 9-1.

Table 9-1. 302B to TN754 Wiring Designations

302B, 4-wire		TN754 (position 1C02)
			4-wire Connector Pin
Pin			Number
(from Table 9-7)	Name	Port 5 Name	(from Table 9-9)
1	txt	txt5	39
2	txr	txr5	14
3	pxt	pxt5	40
6	pxr	pxr5	15

The following diagram illustrates these wiring designations.

9-2Issue 1 September 1995