Step 1 - Select your Keyspan part number
Select your Keyspan part number. This is usually printed on your unit as 'p/n'. If you need help finding your part number, please contact Keyspan's Support Department.
Note:
For developer downloads and Linux information, scroll down to the bottom of this page.
Link to Sample Code (on Apple's website) This tech note on Apple's developer's site covers the major topics related to serial port programming. This page also includes sample code for finding, opening, closing, and yielding serial ports under the classic serial API and the Open Transport serial API.
Link to Portmon Utility (on Microsoft's website)
"Portmon is a utility that monitors and displays all serial and parallel port activity on a system." This tool is useful to developers who need to see serial traffic. This is a free Microsoft tool.