XH-OSW-1XN optical switch is a kind of optical path control device, which has the function of controlling the optical path and converting the optical path. It plays an important role in optical communication applications. Optical switches are mainly used for multi-channel optical monitoring in optical transmission systems, LAN multi-light source/detector automatic switching, and optical sensing multi-point dynamic monitoring systems. Optical test systems are used for optical fiber, optical device, network and field engineering optical cable testing. ; Optical device installation and adjustment.