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Optical time-domain reflectometer
The WG Fiberfox (Fiber-Optic Xpert) otdr has a "qualification" mode that displays the quality of a fiber link. The otdr compares measurement results with specified limits and offers pass/fail assessment for the overall link. The unit acts as a stand-alone otdr that evaluates and interprets event tables. The device is available for singlemode fibers (1310/1550 nanometers), multimode fibers (850/1300 nm), and in-service measurements of 1625 nm, with different dynamic ranges for short- to ultralon