QNX is pretty fussy about serial ports from what I have found. I am using VirtualBox to virtualize an old 486 PC running QNX 2.21 which runs an piece of industrial equipment. Why don't I just use a USB to serial adapter? Well that was my original plan. All I need is the cable to go from the motherboard to a DB9. The serial port is actually present in the system it shows as COM1 (IRQ 0x04, I/O Range 0x3F8-0x3FF) in device manager and there is a place on the case to install the DB9 connector.
If you follow the above link see #6 in the picture in the Ports & Slots section near the bottom of the page. Which is odd since the cable is mentioned multiple places on the Dell website and in the service manual. Neither of them seemed to have any idea what I was talking about. I have tried Dell sales support they referred me to technical support.
I am trying to find out how to get the optional serial port adapter cable for the OptiPlex 3070 Micro.
