Fault-tolerant communications controller system

Details Fault-tolerant communications controller system Fault-tolerant communications controller system

1983-11-14

1986-08-19

Atkinson, Charles E.

Excavating

371 9, G06F 1120

Patent

active

046073655

ABSTRACT:
The present invention relates to a system for controlling multiple communications lines, so that a computer system can operate with a single component failure. Two processors are used to control two communications controllers and each of the controllers control up to 15 line controllers. Each line controller has two ports and each port is connected to a communications controller thereby providing two communications paths to each processor. Redundant power supplies are also used to provide single failure fault-tolerance. A downloadable microprocessor board is provided in combination with, but separate from, an interface board that is designed to meet various communication format specifications and the line controller comprises the two boards.

REFERENCES:
patent: 3920975 (1975-11-01), Bass
patent: 4015246 (1977-03-01), Hopkins, Jr. et al.
patent: 4190821 (1980-02-01), Woodward
patent: 4358823 (1982-11-01), McDonald et al.
patent: 4466098 (1984-08-01), Southard
patent: 4503534 (1985-03-01), Budde et al.
F. G. Snyder, Modular Fault Tolerance Keeps Computer Systems Reliable, Electronic Design, vol. 29, No. 10, May 1981, pp. 163-167.

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