User Manual

Premier Guard Installation Manual
19
External Relay interface
The external relay interface is located at the side of the control unit case.
There is one external alarm relay located on the PLCU case. The relay switch is closed when
an alarm is triggered by the system. To connect the system to an external alarm, build a cable
with a matching 4-pin connector, and then insert the connector into the External Relay socket
on the PLCU. Ensure the cable firmly secured in place by the connector’s screws. The
External Relay switch has a rating of 1A@250vac/24vdc.
V
alid output terminals
To remote alarm
Suggested Relay Ratings
1A@250vac/24vdc
Notes:
1. Wire length to the dry contact circuit is limited to 20 feet.
2. To prevent high voltage noise from being introduced into
the transceiver and degrading the system’s performance,
it is highly recommended that you use a 24vdc output
relay.
RxA RxB
RxC RxD
Tx Control
External
Relay