The Fast Light UT903 OTDR has been developed to enable the cost effective central office testing of fibre cable systems, both passive optical networks (PONs) and point to point using a single test unit.
The PON OTDR function combines a fast response with excellent signal-to-noise ratio. Trace data is further enhanced using signal processing techniques, enabling the UTEL OTDR to resolve reflections from ONTs on PONs without additional reflectors. The point-to-point OTDR function with its high dynamic range can monitor links up to 160 km, providing an accurate location if a fault is found. Periodic testing allows monitoring for degradation, enabling preventative maintenance.