| 摘要 |
PROBLEM TO BE SOLVED: To improve the packaging density and to reduce the adverse effect on an optical communication during a work such as a connection switching by providing a moveable extra-length storage section from which a connection extra-length is pulled out as a pulled extra-length while it is separated from a main body. SOLUTION: In order to switch the connection at an MT connector 26 in the optical branching module stored in a frame, a moveable extra-length storage section 27 is pulled out to the outer side of the station with respect to a main body 24, an MT connector 26 is taken out with optical fiber tapes 8a, 8b and 25, which are connected to the connector 26, and the switching work is executed. Since a circular plate 40 is made rotative with respect to a circular recessed part 41, the plate 40 rotates as the section 27 is pulled out and a connection extra-length 25a of the tape 25, which is wound outside a mandrel 44, is rewound and functions as a pulled out extra-length. Since the re-wound extra-length 25a is restrained by a cord restraining jig 37a, the work is accomplished without giving an adverse effect to the optical parts in the body 24. |
