Intrusion alarm test system

Details Intrusion alarm test system Intrusion alarm test system

1975-10-06

1977-05-17

Caldwell, John W.

Communications: electrical

Systems

Call station

340258A, G08B 2900

Patent

active

040245195

ABSTRACT:
For use in a multiple zone intrusion alarm system having a central control unit and a plurality of remote transceivers or other sensors, apparatus for testing the operability of the transceivers wherein the control unit includes means for deactivating all of the transceivers, and each transceiver includes means by which that transceiver can be reactivated by connection of a test circuit thereto. The test circuit is operative to measure background noise levels and alarm levels for the associated area being tested.

REFERENCES:
patent: 2769972 (1956-11-01), MacDonald
patent: 2779936 (1957-01-01), Loudon et al.
patent: 2943304 (1960-06-01), Schmidt
patent: 3452345 (1969-06-01), Kinsey
patent: 3562730 (1971-02-01), Hill et al.
patent: 3838408 (1974-09-01), McMaster

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