Redundant system having signal path operation function

Details Redundant system having signal path operation function Redundant system having signal path operation function

1994-09-06

1995-12-26

Hsu, Alpus

Multiplex communications

Wide area network

Packet switching

370 681, 34082501, 340827, 379 2, 379273, 379279, 455 8, H04J 314, H04L 100

Patent

active

054793963

ABSTRACT:
A redundant system includes a redundant structure and a selector of the output signals of the redundant structure the selector further including a selection/operation signal converter and a path operation signal processor provided in each circuit package. The signal converter converts selection signals of the selector into a path operation signal indicative of operation or non-operation of each signal path in each of the parallel connected systems. The signal processor transfers the path operation signal from a downstream circuit package to an upstream circuit package and judges path operation condition of the signal paths passing through each circuit package based on the transferred oath operation signal. Using the judgement, each circuit package can perform on/off control of the indication lamp by itself.

REFERENCES:
patent: 5010550 (1991-04-01), Hirata
patent: 5081619 (1992-01-01), Nagata
patent: 5210740 (1993-05-01), Anzai et al.
patent: 5268897 (1993-12-01), Komine et al.
patent: 5333187 (1994-07-01), Hiraiwa et al.

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