Features of the Onguard 800 System Alarm Module

  • Three appliance channels
  • Remote trip and silence inputs
  • LED local alarm annunciation
  • All field wiring supervised per NFPA
Allestec Alarm Module for the Onguard 800 Series Gas and Fire Control Panel

Onguard 800 System Alarm Module

The Allestec Alarm Module, model number 1442, is programmable from other modules within the panel assembly to facilitate in the announcement of audio and visual external appliances. An alarm signal will turn on channel one, normally the bell channel. Channel two, the horn circuit, is simultaneously turned on. A silence switch is provided to silence the audible alarm(s) or any successive alarms. The strobe circuit located on channel three, remains in the alarm condition until the primary Input Module(s) can be reset. This safety feature ensures that all alarms have been cleared before the Alarm Module strobe channel can be reset.

An external input allows the remote field activation of the Alarm Module. This input duplicates the function of the other modules connected through the motherboard buss. The remote silence input, or the silence switch located on the front panel, can then be depressed to silence the appliances. Any reoccurrence of alarms, locally or remotely, will activate the module again.

Each output is individually monitored for a fault condition. A fault will be announced with its respective yellow fault LED and will activate the Fault Module.



Specifications of the Onguard 800 System Alarm Module


Approved operating voltage:

20 - 28 VDC redundant power sources

Operating current excluding appliances:

30mA quiescent, 90mA maximum

Release outputs:

Three relays fused at 2 amps each, 24 VDC
Output relays sealed and contains an inert gas

Alarm mode:

Utilizes reverse polarity on alarm, supplying 24 VDC to the appliances



1.04"W X 3.46"H X 6.4"D


3.8 ounces


Ambient operating temperature:

0°F to 150°F
-17°C to 65°C
90% humidity non-condensing

RFI interference:

Meets factory mutual specification as listed in Class #3820

Packaging and exposure:


Part Number Description


Alarm Module


End of line resistors (3 supplied) - may not be required on all appliances


System manual

Onguard 800 Series Gas and Fire Control Panel Components

Onguard 800 Series Gas and Fire Control Panel - A Modular Special Hazard Safety System

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