All fiber connectivity in the cabling system shall be subject to inspection and cleaning according to the guidelines presented herein. For the purposes of this document, connectivity systems consist of the fiber connector and adapters connecting different segments of the. There are two major uses for visual inspection of fiber optic connectors. Fiber optic testing of a newly installed system not only verifies that the system meets its design requirements, but also creates a performance baseline for all future testing and troubleshooting of t at system. Corning recommends that all fiber optic systems be tested to a minimum set. This document outlines the Panduit recommended procedures for visual inspection and cleaning of multimode and singlemode structured cabling system interconnect components (connectors and adapters) and specifies workmanship requirements, tools and best practices, to be utilized for end face. Fiber Inspection is the practice of viewing the end face of a fiber optic connector by use of an optical microscope. Optical Time-Domain. testing no longer hold true. Consultants and cabling vendors alike are now starting to specify loss budgets based on componen performance, not standards.