Below are step by step instructions to wall mount the US-235 (1 Port RS232 to USB to Serial adapter) and the US-320 (1 Port RS422/485 USB to Serial Adapter).

What you will need:

  • US-325 or US-320

    US-325 or US-320

  • Drill


  • Insulating Tape

    Electric Insulating Tape

  • Countersink Screw

    Countersink Screw

    head diameter 6mm, length and type dependent on the wall being mounted to.

  • Countersink drill bit

    Countersink drill bit

  • Bradawl, flat head screw driver, cross head screw driver

    Flat head screw driver, cross head screw driver


  • Open Case using screwdriver

    1. Open Case

    Open the plastic case by gently inserting the small flat head screw driver between the seams of the case next to the DB9 connector. Rotate the screw driver from side to side to prise the case open.
    Open Case using screwdriver
  • Open Case

    2. Remove Label

    Use the small flat head screw driver to remove the label from the underside of the case and reposition it. The wall mount hole is location under the label.
  • Make countersunk hole

    3. Make countersunk hole

    Use the countersink and drill to make a hole in the location indicated on the inside of the case. Do not drill for extended periods of time as this will heat up the plastic. Countersink to the width of the outer circle indented on the inside of the bottom case.
    before countersink after countersink
  • Mark Hole location

    4. Mark Hole location

    Using a pencil or a bradawl mark where the case will be positioned on the wall. Depending on the wall a pilot hole and or wall plug may be required.
  • Screw In case

    5. Screw In case

    Screw the bottom of the case into place on the wall.
  • Insulate

    6. Insulate

    Cover the screw with a small square of insulating tape.
  • Attach Lid

    7. Attach

    Attach the top and the case and electronics into place
  • Connect Cables

    8. Connect Cables

    Connect the USB and Serial Cable

This FAQ Applies to the following Brainboxes Product Ranges: