| 摘要 |
The purpose of the present invention is to monitor the position of failure and automatic changeover in real time by using a light beam selector and an OTDR. A real-time light signal monitoring system includes a splitter, a light transmission part, a changeover switch part, an insulator, a WDM, a reflection filter, a switch, a light reception part, and a failure determination part. [Reference numerals] (100) Splitter;(1100) Light reception part;(200) Light transmission part;(300) First WDM;(330a) Second WDM;(600,600a) Failure determination part;(AA) Light source;(BB) A path;(CC) Failure point;(DD) B path |
