... signals from serial ports (RS232, RS485, RS422, etc.) transferred originally via power cable to optical signal transferred via fiber, extending greatly the ... 50,000 hours.With serial port interfaces such as RS232, RS485, RS422, etc.Support synchronous transfer of 1-2 ... mode/multi mode, etc..The optical port supports single fiber 2-way transfer, saving precious fiber-optic resources.The single unit ...