First step is to make an accurate inspection of the ferrule, using a video microscope. Each type of connector has a different ferrule diameter. The primary reason for fiber inspection is to ensure that the connectors are free of any defects, damage, or debris that would prevent sufficient transmission of light when mated. This Applications Engineering Note (AEN 135) explains and recommends standard measurement methods for characterizing optical fiber system performance. This note also provides background information on system link configurations, test equipment and system component considerations that influence. must be carried out prior to all cable testing. The critical area is the core zone which an tolerate only the smallest of imperfections. Fiber optic cable. There are three main principles that needs to be taken in consideration for an efficient optical connection: a perfect core alignment, perfect physical contact and dirt-free connectors.
