Installing Customer-Provided Alarm-System 75 Xe Only; Installing Off-Premises Terminal Wiring - AT&T 75 Wiring Manual

110-TYPE HARDWARE
Installing Customer-Provided Alarm—System 75 XE Only
Requirements
For the System 75 XE, access to a relay contact is available for a customer-provided alarm
that can be used to connect to a light, bell, or similar type device. The relay contact can be
administered so that it will make contact when a major, minor, or warning alarm condition
exists on the system. The circuitry required for this feature must be provided by the
customer. The device connected to the alarm leads must not exceed a rating of more than
100 volts at 3/4 amps. The contact leads appear at the cross-connect field on the
AUXILIARY connector, refer to the AUXILIARY connector labeling for lead assignments.

Installing Off-Premises Terminal Wiring

Requirements
The cabling outside the building for off-premises terminals is provided by the local telephone
company. The off-premises terminal appearance is on any of the RJ21X network interfaces
provided for central office trunks. The off-premises terminals can only be an FCC approved
analog type, for example, a 2500. Figure 3-100 shows the connections required for off-
premises terminals. The TN746 Analog Line circuit pack cannot be used for off-premises
terminals.
Installation
1. If you are doing the initial installation, go to step 5; otherwise, do steps 2, 3, and 4.
2. Install a B25A cable between the RJ21X network interface and a sneak fuse panel.
3. Connect jumper wires between one row in the green field and up to three rows in
the purple field to obtain concentration of analog line pairs as shown in Figure 3-
67.
4. Connect an A25D cable between the sneak fuse panel and the 110 terminal block
connector associated with the green row in step 3.
5. Install a green label on the 110-terminal block and identify the remote location.
6. Administer per AT&T System 75 and System 75 XE Implementation and A T & T
System 75 and System 75 XE Administration.
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