The switch is designed for use in optical fiber communication networks and measurement instruments. The switch consists of two 1x2 switches (A & B components) with two input ports and four output ports that transmit, redirect, or block optical signals in the fiber. Where switches simply block or pass optical signals on individual or multiple channels, multiplexers route multiple channels out to a single fiber optic cable. Demultiplexers route a. Fiber-optic switches control light paths within fiber optics, ranging from simple on/off types to complex matrix configurations like 64×64. This technology allows for high bit rate transmission to be switched between various optical lines. Other options are also available upon request OZ Optics now offers turnkey rack mountable op-tical switches with built-in electronics and color touch screen.