Outputs
The controller has 7 onboard outputs. These outputs are used to activate bell sirens, lighting circuits, door locks,
relay accessory products and other automation points. The first output on the controller has a special hardware
design that allows it to monitor for fault conditions and is ideally suited to driving sirens or warning devices.
Bell/Siren Output
Not investigated by UL/ULC for local burglary applications.
The + and - terminals of the bell output (CP001:01) are used to power bells, sirens or any devices that require a
steady voltage output. The bell output supplies 12VDC upon alarm and supports one 30-watt siren. The bell output
uses an electronically fused circuit and automatically shuts down under fault conditions.
Connecting a Piezo siren may result in a dull noise being emitted. This is caused by residual current from the
monitoring circuit. To prevent this occurring, connect two 1K resistors in parallel.
+
-
12VDC siren
warning device
1k Resistors
B- NO
B+
NC NO COM
NC
COM
If the load on the bell terminals returns to normal, the controller reinstates power to the bell terminals on the next
transition of the output.
When the bell output is not used, the appropriate trouble input will be activated. This can be avoided by
connecting a 1K resistor (provided in the accessory bag) across the bell output. If the bell is not being used for
another function, and the trouble input is not programmed in the system, a resistor is not required.
PRT-CTRL-DIN | Protege GX DIN Rail Integrated System Controller | Installation Manual 31
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