For an specific application we have tried to use an USB->RS232 converter to hookup some specific research hardware. This USB->RS232 converter generates errors. After some research we conclueded this error is genereated by the converter. Once we use a onboard COMPORT it works fine. SO: Dispite there is a COMPORT in the Windows hardware manager. the system has no physicial COM R232 connection available. If available; which pins can I use to create a physical comport from? note; yes, i'm aware of the fact that the warranty will be void once opening the minux. Thanks for your reply !