... /RS485 from/to Fiber Optic Series Converter/Repeater RS232/RS485 from/to Fiber Optic, Converter/Repeater Fiber Optic to RS232 to RS485, Optic fiber devices, RS-485 Repeater, Series ... -SSingle mode fiber, dual fiber ports, transmission distance 20KM, connector ST/SC/FC, Rate data: 0-10M. RS-485/232/422 serial to Fiber Optic Converters ...