Optical interface in SONET system

Details Optical interface in SONET system Optical interface in SONET system

1996-09-16

1997-10-28

Williams, Hezron E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

370113, H04J 1400, H04B 1020

Patent

active

056822570

ABSTRACT:
An optical interface in a SONET system, wherein the optical interface includes a first multiplex/demultiplex apparatus for multiplexing/demultiplexing higher level signals of the main line side and lower level signals of the subscriber side and performing electrical/optical conversion of the lower level electrical signals and optical signals. An optical transmission line is provided for transmitting the optical signals. A second multiplex/demultiplex apparatus converts between the optical signals and a plurality of subscriber side line digital electrical signals. The overhead signals contained in the lower level signals and reaching the first multiplex/demultiplex apparatus are also contained in the optical signals and are transferred further from the first multiplex/demultiplex apparatus to the second multiplex/demultiplex apparatus.

REFERENCES:
patent: 4713806 (1987-12-01), Oberlander et al.
patent: 5042062 (1991-08-01), Lee et al.
patent: 5189410 (1993-02-01), Kosugi et al.
patent: 5189673 (1993-02-01), Burton et al.

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