OSW 1x16 Multi-Channel Optical Switch with Adjustable Channels Control, 1310/1550nm Single Mode 9/125 Fiber LC/PC Connector, Pluggable Module OTS3000-OSW is a kind of function card in optical communication integrated platform .1xN 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 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/ots3000-otdr-optical-time-domain-reflectometer.html