Communication terminal for interconnecting programmable controll

Boots – shoes – and leggings

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364900, G06F 300

Patent

active

043542263

ABSTRACT:
A communications terminal for use with a programmable controller to permit transmission of status and control information between that programmable controller and a plurality of programmable controllers having similar communications terminals associated therewith and connected in a communications loop. The communications terminal permits one programmable controller to utilize signals originating in other programmable controllers and to provide asynchronous time division multiplexed signals to other programmable controllers via a shielded, twisted-pair conductor to control devices connected to those other programmable controllers.

REFERENCES:
patent: 3363234 (1968-01-01), Erickson
patent: 3668649 (1972-06-01), Pedersen
patent: 3680056 (1972-07-01), Kropfl
patent: 3688273 (1972-04-01), Karang
patent: 3706974 (1972-12-01), Patrick
patent: 3781815 (1973-12-01), Boudreau
patent: 3806885 (1974-04-01), Moore
patent: 3879710 (1975-04-01), Maxemchuk
patent: 4000378 (1976-12-01), Caplan
patent: 4007450 (1977-02-01), Haibt
patent: 4103336 (1978-07-01), Gindi

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