Post originated from the Corning White Paper below.
This paper explains the recommended guidelines for testing an installed fiber optic system. 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 that system. Corning Cable Systems recommends that all fiber optic systems be tested to a minimum set of standards. This testing will ensure that the data necessary to properly evaluate any future system malfunctions will be available.