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CHQ-ISM/SIL

I.S. SOUNDER INTERFACE MODULE (SIL2 approved)

This Sounder Control Module interfaces between the Hochiki Analogue system via a CHQ-DSC2/SIL 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
  • SIL2 Approved