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AssigneeNEC Corporation
InventorHiroaki TANAKA
Estimating the term…
In order to detect a terminal station in which a failure has occurred in a WDM optical transmission system that transmits optical signals transmitted thereto from a plurality of terminal stations after performing wavelength multiplexing of said optical signals, this failure detection device includes: an input unit that receives first optical signals from the plurality of terminal stations, the first optical signals having wavelengths respectively allocated to the plurality of terminal stations on the basis of allocation information, and that joins the received first optical signals; a monitoring unit that outputs monitoring signals, which are signals that are in accordance with the intensities corresponding to the respective wavelengths of the joined first optical signals; and an identifying unit that identifies a first terminal station from the plurality of terminal stations on the basis of the allocation information and the monitoring signals.
A failure detection device comprising:
A failure detection method comprising:
A tangible and non-transitory recording medium storing a failure detection program causing a computer of a failure detection device to execute:
Dependencies are inferred from the claim text.