Peripheral control for a digital telephone system

Details Peripheral control for a digital telephone system Peripheral control for a digital telephone system

1984-02-06

1986-10-07

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 58, 370 85, H04Q 1104, H04J 302

Patent

active

046163603

ABSTRACT:
This invention relates to a peripheral control unit for a digital switching system. It utilizes a peripheral control network formed of combination time and space division switches which communicate with peripheral cards using a number of time divided lines (channels of which correspond to peripheral units), and communication with the main system central control using a parallel bus connected to a controller and a transceiver, which is connected to the system control via serial time divided lines. In this manner a very few number of wires is required to be connected to the peripheral cards, while allowing selectively simple communication structure and high reliability.

REFERENCES:
patent: 3693155 (1972-09-01), Crafton et al.
patent: 3856993 (1974-12-01), Closs et al.
patent: 4287590 (1981-09-01), Boute et al.
patent: 4347498 (1982-08-01), Lee et al.
patent: 4379950 (1983-04-01), Ahmed

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