The GLSUN 1×N rack type optical switch is a kind of optical path control device, which plays the role of controlling and switching the optical path. The product can manually select and switch the working light path through the panel button, and can also control the light path switching or set the frequency to automatically scan the light path that needs to be monitored and switched through the RS232 serial port and Ethernet port.h #1XNrackmount #1XNOSW #opticalswitch https://www.glsunmall.com/products/optical-switch-equipment.html