Wavelength division multiplexing transmitter receiver, optical transmission system, and redundant system switching method
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United States of America Patent
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Sep 7, 1999
Grant Date -
N/A
app pub date -
Jul 18, 1997
filing date -
Jan 28, 1997
priority date (Note) -
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Abstract
For wavelength division multiplexing transmission, a standby-system processor capable of handling all wavelengths is included in relation to a plurality of working system processors associated with different wavelengths. If any of the plurality of working system processors fails, the wavelength of a light wave to be processed by the standby-system processor is controlled according to the wavelength being handled by a current- system processor that has failed. A switching unit switches the working system processor that has failed to the standby-system processor.
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