The SW-DR-1 optical switch evaluation kit is comprised of a driver board, a switching mounting board, software, a power supply, and a computer interface cable. It is designed to drive and control Agiltron CrystaLatchTM (CL) series and LightBendTM (LB) series optical switches up to 15 switching points. The evaluation board integrates both standard USB and TTL interfaces, allowing the user to easily create flexible and customized control logic configurations. It features real time control and supports all port configurations of Agiltron CL and LB series switches. A user-friendly WindowsTM application program is included for multi- purpose switch testing and demonstration. Also, we can provide RS232 interface if requestedBBN International supplies Agiltron, fibre optics, fiber optics, optical switch, driver, LightBend