Alarm system with supervision controlled receiver parameter modi

Details Alarm system with supervision controlled receiver parameter modi Alarm system with supervision controlled receiver parameter modi

1996-05-20

1998-10-27

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340506, 340514, G08B 108

Patent

active

058283005

ABSTRACT:
A self-testing data communications system suitable for use with an alarm system, the communications system being capable of modifying an operational parameter such as the input signal sensitivity of a receiver located at a monitoring station during receipt of a supervision signal from a remote alarm device, in order to ensure that a non-supervision alarm signal will be properly received when the operational parameter is again returned to its normal state.

REFERENCES:
patent: 4101872 (1978-07-01), Pappas
patent: 4191948 (1980-03-01), Stockdale
patent: 4367458 (1983-01-01), Hackett
patent: 4442426 (1984-04-01), Heuschmann et al.
patent: 4523184 (1985-06-01), Abel
patent: 4672365 (1987-06-01), Gehman et al.
patent: 4754261 (1988-06-01), Marino

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