Control a Serial Device from a USB Port
Our USBS 1401A serial communications converter makes it easy for computers with a USB port to communicate with an older RS-422 or RS-485 serial-port device without ever opening up you computer case. It also eliminates the need for such system resources as I/O ports and IRQs to support serial communications.
After you install the included software, your computer automatically recognizes the module and configures it. You can add or delete any number of USBS converters without ever reconfiguring your system or fussing with internal jumpers and DIP switches.