1 Reply Latest reply on Jul 9, 2016 10:03 PM by Kiran.Pradeep

    What is the DB9 pin layout for RS485 full duplex mode on DK 300

    jobs_intel

      DK 300 support supports  RS-422/485 4wires full duplex by BOM option. This information is available in dk300 data sheet .

      http://downloadt.advantech.com/ProductFile/PIS/UTX-3115/Product%20-%20Datasheet/UTX-3115%20A2_DS(03.14.16)20160413112944.pdf

       

      The DB9 pin out is as follows

      Pin

       

      RS-232

      RS-422/485 4-wire

      RS-485 2-Wire

      1DCD = InputCTS-- = InputNot Used
      2RXD = InputRXD+ = InputRXD+ or Not Used
      3TXD = OutputTXD+ = OutputDAT+ (often B)
      4DTR = OutputRTS-- = OutputNot Used
      5GND, SignalGND, SignalGND, Signal
      6DSR = InputRXD-- = InputRXD-- or Not Used
      7RTS = OutputRTS+ = OutputNot Used
      8CTS = InputCTS+ = InputNot Used
      9Not UsedTXD-- = OutputDAT-- (often A)

      Please refer the link for more information.
      https://www.digi.com/wiki/developer/index.php/RS485_DB9_on_Connect_Products