CHQ-ISM

This Sounder Control Module interfaces between the Hochiki Analogue
system via a CHQ-DSC or conventional sounder O/P's and the
intrinsically safe sounder/beacon units via an intrinsically safe barrier.
 
The module provides line monitoring for open or short circuits on the
wiring connected to both the safe and hazardous areas.
 
* Provides dual sounder circuits
* Provides fault-monitored input
* Interfaces between loop and I.S. sounders/beacons
* Fully monitored for short-circuits
* Requires 24 Vdc external power supply
* Also available as a DIN module