Multiplex communications – Wide area network – Packet switching
Patent
1979-02-26
1980-10-14
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 63, H04Q 1104, H04J 314
Patent
active
042285356
ABSTRACT:
Two identical and interconnected switch matrices are used wherein one is "on-line" and the other is "off-line". If an individual module in the on-line switch fails, an identical module in the standby matrix is switched in to carry traffic. The failed module can then be replaced with an operable unit. The feature of modularity not only greatly enhances the performance of the switch matrix but also provides for quick restoration of the switching apparatus to a preferred configuration of operability.
REFERENCES:
patent: 3828136 (1974-08-01), Perna et al.
patent: 3886318 (1975-05-01), Charransol et al.
patent: 3959596 (1976-05-01), Bojanek et al.
patent: 4059736 (1977-11-01), Perucca et al.
patent: 4081611 (1978-03-01), Bovo et al.
Nicholas David C.
Workman Harold W.
Greenberg Howard R.
Hamann H. Fredrick
Lutz Bruce C.
Olms Douglas W.
Rockwell International Corporation
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