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2 wire sensors interface

Discussion in 'Security Alarms' started by [email protected], Jun 14, 2006.

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  1. Guest


    We are planning to use 2 wire addressable sensors (PIRs and smoke
    detectors)in our design. Usually we purchase stand-alone 4 wire
    (relay output) sensors. and interface with our control board.

    If I want to interface these sensors to our controller board. How
    can I interface this.

    Actually we require wire break function. In this if a wire cuts of a
    sensor, it should report to the controller board. How we can implement
    this function. we are supposed to implement this function using 2 wire
    interface. Is there any other method for this.

    Thanks in advance
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