The short answer is yes.
RS-485 is an electrical and not a protocol specification.
If you have a RS-485 to RS-232 converter connected to the serial port or a RS-485 PCI card your set. You can talk to the device using minicom or any other serial communication program. So no special driver is required but you do need to know the device's command structure.
Last edited by michaelk; 10-29-2004 at 12:50 PM.