Advantech HMI-640S - Manual (Page 94)

8 4 HMI-640S User's Manual
B.1 Touchscreen Specifications
The touchscreen is a 4-wire analog resistive type. It is constructed of
one glass sheet overlayed with two layers of PET. The PET layers are
coated with ITO and are separated by printed spacers. The touch-
screen is designed to be activated by the pressure of any stylus.
COM 2 DIP Switch Setting
RS-232 4, 6, 8, 10 ON
RS-422 1, 3, 5, 7, 9, 12 ON
RS-485 2, 7, 9, 12 ON