Optical transmission network real-time monitoring system based on Bi-directional OTDR

Based on existing optical signal processing technology,network technology,and OTDR equipment design and real-time monitoring system of the optical transmission network,this paper proposed to solve the problem of the OTDR dynamic range is limited in the long distances of fiber optic cable line based on bi-directional OTDR testing,while a combination of GIS and other technology development of fiber optic cable line management system(FMMIS),real-time monitored the optical transmission network,to achieve automatic and accurate positioning of the fiber interrupt fault.