Alarm system for indicating a fault condition of an anti-skid br

Details Alarm system for indicating a fault condition of an anti-skid br Alarm system for indicating a fault condition of an anti-skid br

1975-01-29

1976-12-14

Caldwell, John W.

Communications: electrical

Systems

Call station

303 92, 340 52B, G08B 2100, B60T 1722

Patent

active

039978893

ABSTRACT:
In an alarm system wherein a fault detection unit and a fault indication unit are spaced away from each other, long wires for detection signal transmission and for power supply, etc., are necessary. A fault indication driving circuit is provided within or adjacent to the fault indication unit, the bias voltage of the fault indication driving circuit being determined with the use of the detection signal transmission wire and the power supply wire in such a manner that the fault indication is enabled when one of the long wires is accidentally broken or placed in poor connection condition.

REFERENCES:
patent: 2566597 (1951-09-01), Cass
patent: 3014207 (1961-12-01), Principale

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