In Fiber Monitoring System, OPD measures the optical power and OTDR calculates the link length, link loss, ORL and fiber attenuation to test the whole links and locate breaks accurately. It greatly shortens the time of troubleshooting. The PL-1000D fiber monitoring system facilitates non-intrusive fiber optic network monitoring, providing carriers, dark fiber providers, utilities, and enterprises. EXFO's remote fiber testing & monitoring solutions are built based on fixed OTDR test equipment placed at strategic central locations across the network. The condition of fiber optic installations are constantly checked and the locations of degradations or breaks are pinpointed within minutes of. Fiber optic networks are the backbone of modern communication and control systems, both in telecommunications, rail and road transport, and in energy and industrial infrastructure. Continuous health is ensured through predictive maintenance and real-time. Start monitoring your fiber network with VIAVI today! Are you ready to take the next step? Fiber monitoring is the ongoing assessment of fiber quality with software tools & devices that cover integrated fiber monitoring and management systems.