Advantech RUGGED PENTIUM IPPC-9120 - Manual (Page 106)

Chapter 8 Touchscreen
9 1
3. a. Select "Custom"
b. Select the IRQ for COM4 (refer to 9.10)
c. Select the I/O address for COM4 (refer to 9.10)
4. a Click "Install" and the system will automatically install the driver
b. After installation, press "Restart"