SUN-1×8 Rack Optical Switch Single Mode FC/PC 1310/1550nm 100-240V 1×N rack-mounted optical switch is a kind of functional device, with the ability to control and switch optical routes. It can be manually selected from the front panel or controlled via RS232 port, Ethernet port, and auto-scanned on a certain frequency. In optical fiber transmission 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. https://www.glsunmall.com/product/rack-1x8-optical-switch.html