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AssigneeMitsubishi Electric Corporation
InventorsShun Chikamori, Katsunori Imanishi, Toshiyuki Tokura, Kengo Takata
Estimating the term…
An optical transmission line switching apparatus relays main signal light input via a main transmission line including at least two transmission lines. When no failure occurs in the main transmission line, a control unit controls an optical switch and an optical switch so that the optical switch and the optical switch are connected to different transmission lines. When a failure occurs in one of the at least two transmission lines, the control unit controls the optical switch and the optical switch so that the optical switch and the optical switch are connected to a transmission line that does not have the failure. When recovery from the failure is completed, the control unit controls the optical switch and the optical switch so that the optical switch and the optical switch are connected to different transmission lines.
An optical transmission line switching apparatus to relay main signal light input via a main transmission line including at least two transmission lines, the apparatus comprising:
An optical transmission system comprising:
A transmission line switching method for an optical transmission line switching apparatus including a first optical transmission line switching device to perform connection switching to establish connection with one of at least two transmission lines, and a second optical transmission line switching device to perform connection switching to establish connection with one of the at least two transmission lines, the method comprising:
Dependencies are inferred from the claim text.