What does OTDR stand for?

The term OTDR stands for Optical Time-Domain Reflectometer. This device is essential in the field of fiber optics as it is used to analyze the integrity and characteristics of fiber optic cables. An OTDR sends a series of light pulses into the fiber and measures the time it takes for the light to return after being reflected from various points along the fiber. This allows technicians to locate faults, measure cable lengths, and identify connector losses within the system. Understanding how an OTDR operates is crucial for anyone working in fiber optic installation and maintenance, as it provides insights into the health and performance of the optical network.