Technicians use various tools to install, maintain, and troubleshoot fiber cabling: detection and verification testers, certification testers, inspection cameras, cleaning supplies, certification testers, and advanced optical time domain reflectometer (OTDR). Technicians use various tools to install, maintain, and troubleshoot fiber cabling: detection and verification testers, certification testers, inspection cameras, cleaning supplies, certification testers, and advanced optical time domain reflectometer (OTDR). The Broadband Fiber Installer certification is designed for technicians working in the FTTx field studying the “physical layer” of the OSI model. Broadband Fiber Installers are expected to know the primary comprehension of Passive Optical Networks (PON) and of Optical Time Domain Reflectometer. This article dives into advanced testing methodologies — polarity testing, IL/RL measurement (via OLTS, OTDR, OFDR), 3D endface metrology, and endface inspection — and details how they fit into an OEM/contract manufacturing workflow. BICSI-certified fusion splicing, OS2 single-mode backbones, and certified test reports on every run. Get My Free Quote! The Network Installers pulls. Fiber testing is the process of verifying the performance of optical fiber cabling. Our BICSI certified Fiber.