Switched network of optical buses

Details Switched network of optical buses Switched network of optical buses

1987-10-14

1989-05-09

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

34082582, 34082585, 370 1, H04B 900

Patent

active

048295116

ABSTRACT:
A switching apparatus and adjustable time delay protocol to provide switching between N processor system devices in which each device is connected via N+S fibers to N+S switching planes, with one fiber being used for the connection from a device to one of the N+S switching planes. N fibers provide the desired bandwidth and S fibers are used as standby fibers in the event of failure of any of the N fibers. An additional C fiber from each device to a single matrix controller are used to provide control information. The single controller provides control for all N+S switching planes. Each switching plane converts the optical signals that are received over M fibers to electrical signals. The electrical signals are then switched and converted to optical signals by the respective switching planes. Thus, each of the optical signals received over each of the M fibers are transmitted to a respective other one of the M fibers.

REFERENCES:
patent: 4292476 (1981-09-01), Yamamoto et al.
patent: 4677437 (1987-06-01), Kajiyama et al.
patent: 4710917 (1987-12-01), Tompkins et al.
patent: 4736462 (1988-04-01), Joel, Jr.

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