15D1 TOUCHCOMPUTER USER GUIDE 39
2. Double click the “Ports (COM & LPT)” and check all of these “USB Serial
Port” settings must be IDENTICAL as the following table.
Description Location
Communications Port (COM1) On Intel 82801GB/GR (ICH7 Family) LPC…
Communications Port (COM2) On Intel 82801GB/GR (ICH7 Family) LPC…
Printer Port (LPT1) On Intel 82801GB/GR (ICH7 Family) LPC…
USB Serial Port (COM3) On USB Serial Converter A ( the 1
st
set)
USB Serial Port (COM4) On USB Serial Converter B ( the 1
st
set)
USB Serial Port (COM5) On USB Serial Converter
USB Serial Port (COM6) On USB Serial Converter A ( the 2
nd
set)
USB Serial Port (COM7) On USB Serial Converter B ( the 2
nd
set)
3. If you see a situation as below, it shows the operating system has
reassigned these serial ports. You need to correct it manually.
In usual, even if the operating system reassigns these serial ports, they
are still in order. In this case, you should change it as the following table.
Original one Change to
Communications Port (COM1) Communications Port (COM1)
Communications Port (COM2) Communications Port (COM2)
Printer Port (LPT1) Printer Port (LPT1)
USB Serial Port (COM10) USB Serial Port (COM5)
USB Serial Port (COM11) USB Serial Port (COM6)
USB Serial Port (COM12) USB Serial Port (COM7)
USB Serial Port (COM8) USB Serial Port (COM3)
USB Serial Port (COM9) USB Serial Port (COM4)
COM11 AND 12 are the 2
nd
set.
COM8 and 9 are the 1
st
set.
The location of the COM10 should be
on USB Serial Converter.