Most modern systems do not come with serial (RS232) ports so in order to use serial touch devices in these cases you'll need to use a USB to serial adapter.
These adapters allow a serial device to be plugged into a USB port and a driver is used to created a 'virtual' serial port in the system that can be defined and used as though it was a real serial port.
With a virtual serial port you should be able to test all is working as described in our troubleshooting article.
This section documents any information we have about the use of these adapters.
Keyspan / Tripp Lite
The Keyspan macOS driver creates a virtual serial port as per the example below:
User reported they used the port name cu.USA19Hfd13P1.1 in our software.
FDTI
A customer reported that using a serial to USB adaptor that used the FTDI FT232R chip created a device name of tty.usbserial-A104PFUI.
SIIG
The SIIG required two drivers to be installed in macOS in order for the serial port to be fully functional. This is described in their documentation.
The virtual serial port name /dev/cu.UC-232AC was created and this port name needed to be defined in our software.
Additionally we found we had to do a kextload command.
