Apollo XP95 Sounder Circuit Controller (55000-852)


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    55000-852 Apollo XP95 Sounder Circuit Controller

    The XP95 Sounder Control Unit with Isolator is used to control the operation of a zone of externally powered sounders and to report their status to Apollo compatible control equipment. This Sounder Circuit Controller can allow units to be operated continuously, or to be pulsed, 1 Second on, 1 Second off. The controller can also be synchronised with loop sounders. 


    The Sounder Control Unit with Isolator allows sounders to be operated continuously or be pulsed, 1 second on, 1 second off. Sounders may be operated individually or in groups and, whichever address mode has been applied, may be synchronised when in pulsed operation.

    An opto-coupled input is provided to monitor the state of the external power supply.

    The Sounder Control Unit with Isolator is fitted with a bi-directional short-circuit isolator and will be unaffected by loop short-circuits on either loop input or output. 


    • Loop Operating Voltage : 17V DC
    • Maximum Loop Operating Voltage : 28V DC
    Sounder Control Data:-
    • Current Consumption, Loop, @ 24V
      • Switch on Surge, Max 100ms : 2.6mA
      • Quiescent, 10ohms EOL Fitted : 1.95mA
      • Sounders Operated : 1.7mA
      • Fault (Yellow LED On) : 3.6mA
      • Sounder Line Short Circuit : 2.8mA
    • Current Consumption, External Supply
      • Relay Off
        • 1mA @ 9V
        • 3mA @ 32V
      • Sounders and Red LED On
        • 44mA @ 9V
        • 47mA @ 32V
    • Sounder Output Monitoring Voltage : 9-11V DC
    • Maximum Sounder Circuit Voltage : 32V DC
    • Maximum Sounder Circuit Current : 1A @ 30V DC
    Isolator Data:-
    • On Resistance : 0.2ohms
    • Maximum Continuous Current : 1A
    • Maximum Switching Current : 3A
    • Maximum Load : 20 XP95 / Discovery Detectors
    • Operating Tempurature : -20 to +70 Degrees Celcius
    • Humidity : 0-95%
    • IP Rating : 54


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