Multiplex communications – Wide area network – Packet switching
Patent
1990-12-26
1993-06-08
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 161, 370 852, 370 853, 370 8513, 371 82, H04J 314
Patent
active
052186008
ABSTRACT:
In a process for interconnecting computers and/or computer networks, the occurrence of an interruption in the network system is detected. A redundant connection is activated as a function of said interruption. The redundant connection is inactive in undisturbed operation. The presence of an interruption is detected by determining whether a data signal appears within a predetermined period of time at the connectors of a redundant connective device. Different criteria are provided to interrupt a closed connecting ring generated by the activation of the redundant connecting device when the initial interference in the network system is eliminated.
REFERENCES:
patent: 4527270 (1985-07-01), Sweeton
patent: 4704714 (1987-11-01), Tomizawa et al.
patent: 5010550 (1991-04-01), Hirata
Schenkyr Rainer
Schmid Bernhard
Blum Russell W.
Koch Robert J.
Olms Douglas W.
Richard Hirschmann GmbH & Co.
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