Optical subscriber line system

Details Optical subscriber line system Optical subscriber line system

1994-07-19

1995-09-05

Boudreau, Leo H.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359125, 359137, 359110, 370112, H04J 1400, H04J 1408

Patent

active

054483883

ABSTRACT:
An optical subscriber line system includes a multiplexer/demultiplexer unit connected to an optical transmission medium, a plurality of relay units to which subscriber terminals are connected, and a plurality of optical transmission paths optically connecting the multiplexer/demultiplexer unit and the relay units to each other. The multiplexer/demultiplexer unit includes a multiplexer/demultiplexer unit for executing a multiplexing and demultiplexing operation on a first multiplexed signal and first digital signals. The first multiplexed signal is transferred, in the form of a light signal, through the optical transmission medium. The multiplexer/demultiplexer unit includes first interface units, respectively provided for the optical transmission paths, for establishing a first interface between the first digital signals and second multiplexed light signals respectively transferred through the optical transmission paths.

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patent: 5189410 (1993-02-01), Kosugi et al.
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