HP Point of Sale (POS) Peripherals Configuration Guide

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9.7 HP Touch Screen (HP L5006tm / HP L5009tm / HP L5015tm)
Question: Someone else installed the HP touch screen, how do I know which port the touch screen is
attached to?
Answer: In the touch screen properties it will inform you what if you are on the USB or serial interface.
If you are using COM port it will tell you which com port the monitor is attached to.
Showing touch screen attached to USB port:
Showing touch screen attached to serial port on COM1: