| 摘要 |
PURPOSE:To realize a branching changeover device for an optical fiber cable in which optional automatic arrangement is attained among three branches without converting an optical signal into an electric signal. CONSTITUTION:The device is provided with an optical fiber cable use branch region comprising optical fiber cables 40 branched in three directions and installed independently connected directly respectively from a 1st direction to a 2nd direction, from the 2nd direction to a 3rd direction and from the 3rd direction to the 1st direction, and optical branch coupling means 51, 52, 53 having an optical branch function and an optical coupling function are equipped with a connection part of each optical fiber cable in the optical fiber cable use branch region and the adjacent optical branch coupling means 51, 52, 53 are interlinked via the optical branch output terminal section and the optical coupling input terminal section provided to each of the optical branch coupling means 51, 52, 53. |
