OTDR (Optical Time-Domain Reflectometer) is a critical tool for assessing fiber optic cable integrity. It works by launching high-powered light pulses into the fiber via laser diodes. OTDR testing analyzes fiber optic cable performance from end to end by testing components along the cable, including connection points, bends, and splices. For municipal utilities, which are increasingly building and operating their own fiber optic infrastructures, the professional implementation of OTDR measurements is becoming a decisive success. Imagine a world where every strand of fibre optic cable could speak, revealing its health, performance, and potential weaknesses with pinpoint accuracy.