Optical Time Domain Reflectometer. An instrument that allows the characterization of a fibre by the analysis of backscattered light. The OTDR is one of the most useful diagnostic tools in the fibre trade.
Optical Time Domain Reflectometer. An instrument that measures transmission characteristics by sending a series of short pulses of light down a fiber and providing a graphic representation of the back-scattered light.
Optical Time Domain Reflectrometry
A meter that evaluates optical fibers based on detecting reflected light. It's used to measure fiber attenuation, evaluate splice and connector joints, and locate faults.