Setting up RS-232 Hardware

Setting up RS-232 Hardware

The following accessories are necessary for a serial interface connection.
  • Power/GPIO Flying Leads cable
  • USB to Serial Adaptor
  • DB9 RS-232 D-SUB Serial Adaptor
  1. Connect the following wires from the flying leads cables to the DB9 Serial adaptor.
    Flying Leads to DB9 Serial Adapter Wire Diagram
    Pin
    Color
    Description
    1
    Yellow
    OUT1
    2
    White/Yellow
    TXD
    3
    Brown
    RXD
    4
    White/Brown
    IN1
    5
    Violet
    RTS
    6
    White/Violet
    COMMON_IN
    7
    Red
    DC_IN
    8
    Black
    GND
    9
    Green
    COMMON_OUT
    10
    Orange
    IN0
    11
    Blue
    OUT0
    12
    Grey
    CTS
    SHELL
    Bare
    SHIELD
  2. Connect DB9 Serial Adapter (female) to USB-to-Serial adapter (Male).
  3. Connect USB-to Serial adapter USB end into host PC.
  4. Identify the COM port associated with the USB-to-Serial adaptor.
  5. Identify the COM port associated with the USB-to-Serial adaptor using Device Manager on a Windows PC.
    1. Expand the Ports field and identify the USB-to-Serial adaptor.