Industrial RS485 to Optic Fiber Converter, point to point topology, housing type B (wide), DIN rail mount. HD67073-B2 allows you to extend respectively RS485 line through Multi-Modal optic fiber.The particularity of this device is that it is possible to set the meaning of the Light/Dark into the optic fiber (0 or 1) using the internal Dip-Switch.Specification:Ports: 1x RS485; 1x Optic FibersData Rates RS485: Up to 115200 bpsData Rates Optic Fibre..