| 摘要 |
PROBLEM TO BE SOLVED: To provide a device whose reliability and flexibility are high by inputting a light frequency multiplex signal where plural light frequencies are multiplexed, outputting plural light signals different in the light frequencies, inputting the plural light signals different in the light frequencies, converting them into plural light signals having a common light frequency and outputting them. SOLUTION: In light frequency selection parts 601-1 to N, the signals of light frequencies λ11 to λ1N, which correspond to terminals, are selected with the control signals 650-1 to N of a controller 11 from the signals of the light frequencies λ11 to λ1N, which are sent from a host device through a light cannel 100 by light frequency multiplex. In light frequency conversion parts 601-1 to N, the signals are converted into those of a light frequency λ10 decided by an interface common to the terminals by the control signals 650-1 to N of the controller 11 and they are transmitted to the terminals 20-1 to N through optical fibers 300-1 to N. The signals transmitted from the terminals 20-1 to N through the optical fibers 300-1 to N with a light frequency λ20 decided by the interface common to the terminals are light frequency-multiplexed and are transmitted to the host device. |
