Fiber Optic switch is an optical Active device Productthat can selectively switch on and off optical signals or switch from one channel to another. It’s function is to physically switch or logically operate optical signals in optical transmission lines or integrated optical channels. In fiber optic transmission systems, optical switches are used to convert multiple monitors, Lans, multiple light sources, detectors, and protective Ethernet.In the optical fiber test system, used for optical fiber, optical fiber equipment test and network test, optical fiber sensor multi-point monitoring system. Opelink sell 1xN & 2xN Mechanical Fiber Optic Switch, High Reliability, Low Cost !