Specifications

The unit will also respond to CPC pulses (short losses of loop current). When a CPC pulse is detected, the unit will
immediately drop the line.
1. Make sure that power is off and all connections completed before proceeding.
2. Move the TEL INT SEL (dip) switches on the module to the position shown in Figure 5-7 below. Use the tip of
a pen or other pointed instrument to move the switches.
Figure 5-7: Station Telephone
Selector Switch
3. Use a modular telephone cord (minimum 2-conductor) to connect the module to the phone system. The center
two conductors are Tip and Ring and are not polarity sensitive (see Figure 5-8 below). Plug one end of the cord
into the PBX or CO modular jack and the other end in to the TEL LINE jack on the module.
Figure 5-8: Station RJ11 Connections
4. Set Default and VOX timers. See System Programming, Section 11.
Note:
The default timeout is factory set to 30 seconds, and the VOX timeout is set to 6 seconds. If both the default
and VOX timers are inhibited, the only way to disconnect the system from the station line is the CPC pulse.
5.6. Night Ringer
The PCM Night Ringer signaling feature is designed to alert personnel to incoming calls after normal business
hours. The feature can be activated either by a 90V ring signal or by a contact closure. In the factory default
configuration, the night ringer sounds in all zones; however, a zone group can be programmed so that the night
ringer can sound only in a user-selected number of zones.
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