| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a live wire decision apparatus and method that determines if a circuit is in use or nonuse at a job site in a plurality of optical fibers for wiring stored in the same optical splitter. <P>SOLUTION: The live wire decision apparatus 21 includes: a pair of bodies holding the optical fibers in-between in a crimped state and comprising a first body 11 in which a recess 11a is formed for the purpose of housing and crimping optical fibers and a second body 12 in which a protrusion 12a is formed in the shape complementary to the recess 11a; a photodetector 14 for receiving radiated light from the optical fibers in the center of the protrusion 12a; and a decision means 22, 23 which, from a receiving signal corresponding to the radiated light output from the photodetector 14, detects a characteristic difference due to the propagation direction of the signal in the optical fibers and which determines the optical fibers as an active circuit or non-active circuit. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
