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Intrusion detector test circuit which automatically disables a detected-event indicator

  • US 5,499,012 A
  • Filed: 03/30/1994
  • Issued: 03/12/1996
  • Est. Priority Date: 03/30/1994
  • Status: Expired due to Term
First Claim
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1. An intrusion detector test circuit for testing an intrusion detector, comprising:

  • sensing means for generating a sensing signal in response to a detection of an installer testing the intrusion detector;

    indicating means for receiving said sensing signal and for generating a detected-event indication in response thereto;

    switch means interposed between said sensing means and said indicating means for receiving said sensing signal and, in a first state, for supplying said sensing signal to said indicating means, and, in a second state, for not supplying said sensing signal to said indicating means;

    first state setting means for setting said switch means to said first state; and

    second state setting means for automatically setting said switch means to said second state after a lapse of a predetermined time period.

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