Planar PT1745P User Manual page 27

When changing the Touch Interface (RS-232 or USB), please follow
instructions below.
1. Uninstall the touch driver.
2. Re-start the computer.
3. Remove the original Touch Interface (RS-232 or USB).
4. Connect the computer to the Touch Interface (RS-232 or USB) that you would like to use.
5. Install the Touch driver, then follow the step-by-step instructions as show on monitor.
PLEASE NOTE!
Don't plug in both the RS-232 and USB cables!
Doing so may cause a driver confl ict, making your touch screen inoperable.
24