During the on-site inspection of optical cables, the fiber attenuation constant and fiber length should be tested, and cracks and non-uniformity along the length should be carefully checked. An optical time domain reflectometer (OTDR) is generally used for inspection. As we all know, in order to ensure the quality of optical cables and ensure that the optical cables can transmit communication models normally after installation, single reel inspection and reel matching must be carried out before the optical cables are laid, and strict inspections must be carried. Fiber optic cable is a type of cabling that contains one or more optical fibers for transmitting data at high speeds and/or over long distances using light. These fibers are most commonly made of glass and are very thin, typically less than a tenth of the width of a human hair. Fiber optic cable. Suppose you pull an optical-fiber or copper cable run, terminate it and test it. Finding the run faulty, you determine the problem is not with the terminations but with the cable, itself. com/oneuptechs please like, Subscribe, and comment any questions you may have Most techs struggle because they: ❌ Don't have clear training for real-world situations ❌ Rely on random YouTube videos without structure ❌. After fiber optic cables are installed, spliced and terminated, they must be tested.