Connection arrangement for selection and display system

Details Connection arrangement for selection and display system Connection arrangement for selection and display system

1979-12-10

1982-02-09

Pitts, Harold I.

Communications: electrical

Systems

Call station

340782, G08B 500

Patent

active

043152503

ABSTRACT:
An arrangement for utilizing a single lead for communication and control between a controller and a switch-indicator pair. The switch and indicator are connected and the single lead is connected at a junction point of the switch and the control input of the indicator so that when the switch is closed the lead carries thereon a signal indicative of switch closure and the controller may utilize this same lead to provide a signal for controlling the energization of the indicator.

REFERENCES:
patent: 3594774 (1971-07-01), Dawson
patent: 3944972 (1976-03-01), Chandler

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