Connecting to the Debug Interface

The debug interface provides a USB serial port. This serial port can be used to gain access to the Linux system console, the U-boot bootloader, and the boot process log.

You need:

  • Phillips screwdriver
  • Standard USB Micro B cable

To connect the debug cable:

  1. Disconnect power to the Conduit, if it is connected.
  2. At the front of the Conduit housing, remove the screw that secures the MultiTech nameplate to the housing.
  3. Locate the USB debug cable connector in the center of the opening.
  4. Connect the USB Micro B cable to the debug connector.
  5. Connect the Type A end of the USB cable to the host. Power up the device.
  6. From the host, use an application such as TeraTerm with a baud rate of 115,200.
    If the USB driver does not automatically install, do the following:

    1. Unplug the USB cable.
    2. Click this link to download and install the appropriate Windows USB driver for EXAR xr21b1411:
    3. Plug the USB cable back into the housing.
  7. From the host, access the Conduit’s USB COM port.