This procedure describes a method for conducting temperature-shock testing on fiber optic components such as connectors and branching devices. It may also be used for optical fiber cable or optical fiber when specified for U.S military or similar applications.

This procedure is specifically intended to measure and evaluate changes that may occur after exposure to a specified number of temperature-shock cycles. It is not intended to monitor product performance on a continuous basis during temperature soaking.

The test for gradual temperature cycling, and monitoring during temperature excursions, is defined in FOTP-3