Lightwave Link Inc. 2x4 Bypass optical switch with R15 Corning® ClearCurve® XB or equivalent Optical Fiber is designed for use in optical fiber communication networks and measurement instruments. The switch consists of two ports that selectively transmits, redirects, or blocks optical power in a fiber optic transmission line. The optical switch must be actuated to select or change between two states. Furthermore, for the Latching type, it only takes an electrical pulse width with duration ≧20msec to change the state. As a result, it consumes low electric energy to operate the optical switch. Lightwave Link Inc. 2x4 Bypass optical switch fully complies with RoHS Directive 2002/95/EC (2008/385/EC).