Premise alarm shunt arrangement

Details Premise alarm shunt arrangement Premise alarm shunt arrangement

1982-09-23

1984-09-04

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340501, 340506, 340531, G08B 2900

Patent

active

044700393

ABSTRACT:
A shunt arrangement for a premise alarm system which includes a plurality of secure/alarm zone signal inputs and a plurality of alarm circuit outputs. In the shunt arrangement, logic circuitry disables the coupling of the secure/alarm zone signal inputs from the alarm circuit outputs. The shunt arrangement is activated by a shunt switch located remotely from the logic circuitry, and the logic circuitry further includes an indicator light for indicating a zone alarm condition when the shunt switch is activated. The logic circuitry further includes a local test switch operable to produce simulated alarm circuit outputs although the shunt switch is activated.

REFERENCES:
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patent: 3662372 (1972-05-01), Levy
patent: 3772667 (1973-11-01), Falck, Jr.
patent: 3820102 (1974-06-01), Schubert
patent: 4015256 (1977-03-01), Pratt
patent: 4024519 (1977-05-01), Galvin et al.
patent: 4117479 (1978-09-01), Galvin et al.
patent: 4118700 (1978-10-01), Lenihan
patent: 4206450 (1980-06-01), Harden et al.
patent: 4270121 (1981-05-01), Verr

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