I have a Perl application which uses Win32::SerialPort to speak through the serial port to an RS-485 converter, thence to some external hardware. It works great.
But new computers don't come with a serial port anymore, just USB ports.
RS-485 PC boards are $250 and up (Ugh!) USB-to-Serial converters are about $15-$25.(Yeah!)
Has anyone worked with these? Are they "fully wired" - i.e. implement all the RS-232 signals like DSR? It is a simple matter of changing the port name that Win32::SerialPort talks to? Or...
Thanks - Dave