1xN Multi-channel Rotary Optical Switch(1~N~128 ) is a kind of functional component, with the ability of switching optical route.In optical fiber transmissio system, it is used for multi-channel fiber monitoring, multi light source/detector selection, and optical fiber path protection etc. Besides, it is also used in optical fiber test system for optical fiber and its component test, outdoor cable test and multi-spot optical sensors monitoring system. Features Low Loss and High Reliability Parallel Interface(TTL) Modularized Design Epoxy-free on Optical Path. Applications Ring Network Remote Monitoring in optical network Testing of Fiber, Optical Component