The installation and testing of an optical fiber cable require adherence to specific guidelines, including the proper laying of the cable, connecting it to communication devices or data networks, and employing an optical time-domain reflectometer (OTDR) to ensure. The installation and testing of an optical fiber cable require adherence to specific guidelines, including the proper laying of the cable, connecting it to communication devices or data networks, and employing an optical time-domain reflectometer (OTDR) to ensure. Installing underground fiber optic cables is critical to establishing high speed internet infrastructure that delivers reliable connectivity for businesses nationwide. Unlike traditional copper systems, fiber optic cables require specialized handling techniques and precise installation methods to. The Fiber Optic Association, Inc. This guide from Clearnet Communications walks you through site. Fiber optic installation is the process of deploying high-speed internet infrastructure using thin glass or plastic cables that transmit data as pulses of light. Carriers use optical fibres to carry Plain Old Telephone Service (POTS) across their nationwide and international networks.