Edwards EST URSM

Universal Riser Supervisory Module

    Brand: EST FireAlarm.com Part #: 43213 Categories: , Manufacturer Part #: URSM


    The URSM module is a circuit card required to supervise the integrity of audio risers or fire fighter’s telephone system risers. The URSM will supervise two riser circuits. The risers may be any combination of fire fighter’s phone risers or audio power risers. Each riser is supervised for opens and shorts. Upon failure of a riser circuit, its associated fault relay circuit will activate. The URSM is powered from the nearest system power source. The trouble fault contacts may be connected to a supervisory zone for system fail notification.


    Weight 5 lbs



    • Supervises two audio power risers
    • Supervises two fire fighter’s telephone risers
    • Optically isolated supervision inputs
    • One Form C trouble relay contact per circuit
    • Built-in transient suppression
    • 24 Vdc powered
    • 1/2-size footprint module
    • Low standby current
    • Supervises 25 V or 70 V audio risers


    EST URSM Data Sheet
    Edwards – Data Sheet

    Related Products...