Software Configuration - USB-to-Serial Port Adapter
If you are using a computer that does not contain a standard serial communications port and do not wish to purchase and install either a Serial Port PCI or PCMCIA I/O card, you will need to purchase a USB-to-Serial Port adapter. The following configuration has been tested and appears to work correctly with the Belkin brand model F5U409/F5U109 USB-to-Serial Port Adapter.