REMOTE PRESS TO TEST INDICATING LIGHT CIRCUIT

A circuit is provided for remotely testing indicator lights whereby multiple lights may be tested simultaneously by pressing a pushbutton and closing one set of normally opened contacts. In one embodiment of the invention, an indicator light is connected in series with a circuit component which can...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KELLOGG W,US, TAYLOR G,US
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A circuit is provided for remotely testing indicator lights whereby multiple lights may be tested simultaneously by pressing a pushbutton and closing one set of normally opened contacts. In one embodiment of the invention, an indicator light is connected in series with a circuit component which can be switched on by applying a triggering signal. Each switchable circuit component is connected to an indicator circuit which can be activated from some external circuit device. A test circuit is connected to all switchable circuit components to activate them all when a test of the multiple indicator lights is desired. In another embodiment of the invention, a plurality of indicator lights are fed through individual indicator circuit connected through full wave rectifiers. A rectified test signal which is controlled by a single pushbutton can be fed through a test circuit to all the individual indicator lights for testing operability.