Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1992-09-30
1994-05-31
Pellinen, A. D.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
25022711, 34082506, 370 161, 371 112, 379102, 359118, H04B 1008, H04J 1400, G02F 100
Patent
active
053171985
ABSTRACT:
An optical bypass switch for a fiber optic local area communications network (LAN) with a ring topology allows an optical signal carried on the ring to by pass a node, which includes terminal equipment and a stub cable, associated with the switch. In a non-bypass mode, the optical signal is transmitted to and from the associated terminal. The switch assembly is remote from its associated terminal and includes optical couplers and associated optical receivers and activity detectors to produce electrical signals indicative of an optical input to and output from the terminal. Logic circuitry analyzes these signals and produces an appropriate drive signal for a switch controller. The remote switch has a local power supply and is preferably located at the junction of the ring and an associated, purely dielectric stub cable. The terminal can include a dual path transceiver and bridging equipment to provide cross links between terminals in the event of a link failure to complement the node failure protection of the bypass switch.
REFERENCES:
patent: 4541044 (1985-09-01), Shibata
patent: 4575842 (1986-03-01), Katz et al.
patent: 4623884 (1986-11-01), Ihara et al.
patent: 4709365 (1987-11-01), Beale et al.
patent: 4815803 (1989-03-01), Faulkner et al.
patent: 4932745 (1990-06-01), Blonder
patent: 4956836 (1990-09-01), Boatwright
patent: 4978189 (1990-12-01), Blonder et al.
patent: 5007697 (1991-04-01), Chadha
patent: 5016957 (1991-05-01), Seaver
patent: 5020152 (1991-03-01), Glista, Jr.
Elms Richard T.
Pellinen A. D.
The Mitre Corporation
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