Design the cable plant to be protected. ) Put it in conduit or innerduct where it is exposed. Use racks and patch panels with locking doors. Some people have suggested that fiber optic networks need periodic maintenance, including microscopic inspection of connectors and mating adapters and even insertion loss testing or taking OTDR traces. It could hurt an installer or get them sued by an irate network owner. Using the latest in OTDR test equipment our fibre optic repair engineers will identify a cable fault within a distance of 1. Fiber optic network optimization begins with meticulous planning and thoughtful design to ensure that the network meets current. A general practice of cleaning optical cables and module OSAs is a good and recommended habit to ensure overall system reliability and peak performance.