Circuit of duplexing supervisory control modules for use in a da

Details Circuit of duplexing supervisory control modules for use in a da Circuit of duplexing supervisory control modules for use in a da

1996-05-28

1998-04-21

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359113, 359118, 359167, 371 201, H04B 1008

Patent

active

057424136

ABSTRACT:
A circuit of duplexing supervisory modules for use in a data transmission system having an optical fiber system, a multiplexer/demultiplexer system, a work station and a personal computer has a primary information collection supervisory circuit connected to the first and second optical fiber systems, for collecting primary information relating to a local site; a secondary information collection supervisory circuit doubly connected to the primary information collection supervisory circuit, for collecting secondary information in dependence upon the first information; and a tertiary information collection supervisory circuit connected to the work station and doubly connected to the secondary information collection supervisory circuit, for collecting tertiary information in dependence upon the secondary information and providing tertiary information to the work station.

REFERENCES:
patent: 4829596 (1989-05-01), Barina
patent: 4833668 (1989-05-01), Rowley et al.
patent: 5347384 (1994-09-01), McReynolds et al.
patent: 5416623 (1995-05-01), Dawson et al.
patent: 5442472 (1995-08-01), Skrobko
patent: 5546325 (1996-08-01), Aulet et al.

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