Equipment, transponder and methods for optical fiber...

Details Equipment, transponder and methods for optical fiber... Equipment, transponder and methods for optical fiber...

H - Electricity

04

J

H04J 14/02 (2006.01) H04L 25/14 (2006.01)

Patent

CA 2319905

The technical problem disclosed concerns increase of transmission distance between inter-site transmission parts when a circuit speed is increased, and simplification of an intra-site circuit. According to the present invention, an intra-site circuit connecting an intra-site information communications device and a wavelength division multiplexing optical transmission device is demultiplexed into plural low speed wavelength division multiplexing signals by a transponder according to this invention, and transmitted to an inter-site optical fiber circuit. The signals are again multiplexed into a high-speed optical signal by a transponder in a wavelength division multiplexing optical transmission device on the receiving side, and transmitted to an intra-site optical fiber circuit.

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