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TRIG OUT
TRIG
+12V DC
DB3
DB2
DB1
TRANS
POWER
DOORBELL INTERFACE
TRANS
REAR
FRONT
9
Wiring Instructions
Figure 8 – Paging trigger output
and m
ute input
PAGING TRIGGER OUTPUT
The PR-4Zi is equipped with a +12V paging trig-
ger output (Figure 8) that switches on during a
page. This output can be used to trigger an
external amplifier, muting device, or other
peripheral associated with paging. (Paging
peripherals are discussed on page 14.)
MUTE INPUT
The PR-4Zi system mutes when a +12VDC signal
is applied to the mute input (Figure 8). This
allows connection of external paging or muting
devices.
12VDC POWER SUPPLY
PART# 1201A
REAR OF
PR-4Zi
SLEEVE (–)
TIP (+)
DIM-1 DOORBELL
INTERFACE MODULE
REAR
DOOR
FRONT
DOOR
DOORBELL
16VAC
TRANSFORMER
PR-4Zi manual 6/18/02 12:58 PM Page 9