Individual source identification

Details Individual source identification Individual source identification

1988-06-14

1989-05-23

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340508, 340509, 340510, 340511, 340512, 340513, 340525, G08B 2500, G08B 2900

Patent

active

048334510

ABSTRACT:
An individual source identification of several signal providers or pick-ups with closable contacts disposed in a twin-wire signal line, in particular for fire detectors in fire alarm systems. The signal pick-up system allows to distinguish actuation of individual sensors separately and apart from a short circuit formation. The fire alarm system also allows connection to automatic sprinkler devices. The fire sensor system is easy to install in that the individual settings of the individual detectors at a construction site are minimized.

REFERENCES:
patent: 4435698 (1984-03-01), Klett
patent: 4514720 (1985-04-01), Oberstein et al.
patent: 4549168 (1985-10-01), Sieradzki
patent: 4567471 (1986-01-01), Acar

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