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

66-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 Table 4-H for AUXILIARY connector 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 4-62 shows the connections required for off-premises
terminals. The TN746 Analog Line circuit pack cannot be used for off-premises terminals.
Installation
If you are doing the initial installation, go to step 5; otherwise, do steps 2, 3, and 4.
1 .
2 . Install a B25A cable between the RJ21X network interface and a sneak fuse panel.
3 . Connect jumper wires between a connecting block in the green field and up to three
connecting blocks in the purple field to obtain concentration of analog line pairs as
shown in Figure 4-33.
4 . Connect a B25A cable between the sneak fuse panel and the 66-type connecting
block in the green field.
Write the leads on the 66-type connecting blocks using a permanent felt-tipped pen
5 .
and identify the remote location.
Administer per AT&T System 75 and System 75 XE Implementation and A T & T
6 .
System 75 and System 75 XE Administration.
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