AT&T 75 Wiring Manual page 567

Installation
Determine port assignment of feature from Hospitality-Related System
1 .
Parameters Form:
Connect the analog line port to the announcement unit with 2-pair line cord
2 .
(modular plug on one end) from information outlet (see Figure 4-91).
Install jumper wires at cross-connect field.
3 .
4 . Identify carrier slot for the auxiliary trunk circuit pack and label both ends of a
switch cable.
5 . Connect cable to appropriate port carrier slot and dress down sides of cabinet.
6 . Run and connect cable from bottom of the switch cabinet through cable slack
manager, if provided, to 66 connecting block in the purple cross-connect field.
7 . Run and connect B25A cable from second 66-type connecting block in the yellow
cross-connect field to location of announcement unit.
8 . Connect A25D cable to J1 connector on the rear of the announcement unit.
Install jumpers between the 66-type connecting blocks as shown in Figure 4-92.
9 .
1 0 . Connect -48v dc power unit to the announcement unit (see Figure 4-93). The power
unit must be supplied locally and be rated at -48v dc at 1.2 amps.
1 1 . Administer per AT&T System 75 and System 75 XE Implementation and A T & T
System 75 and System 75 XE Administration.
Figure 4-91. Connections
EXAMPLE: Port Number
for
Announcement Unit
B
Carrier Slot
Analog Line Port
66-TYPE HARDWARE
01
02
Circuit
to Wake-Up
4 - 1 4 1