Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1994-03-30
1996-03-12
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340506, 340539, G08B 2900
Patent
active
054990122
ABSTRACT:
An intrusion detector test circuit automatically disables a detected-event indicator from receiving sensing signals. A sensor generates a sensing signal in response to a detection of an installer testing the intrusion detector. An indictor means receives the sensing signals and generates detected-event indications in response to the sensing signals. A switch interposed between the sensor and the indicator receives the sensing signals. In a first state, the switch supplies the sensing signals to the indicator; in a second state, the switch means does not supply the sensing signals to the indicator. A first state setter sets the switch to the first state, and a second state setter automatically sets the switch to the second state after a lapse of a predetermined time period.
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patent: 4032909 (1977-06-01), Boyce
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patent: 4725818 (1988-02-01), Motyka et al.
GlassTrek 450/450S Paradox Instruction Manual from Pirotec Technologies, Quebec, Canada Jul. 1994.
Dorando Dale
Eggers Frederick
Tracy Lawrence
C & K Systems Inc.
Crosland Donnie L.
Hodes Alan S.
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