Dear Rhonda, To use the BN with a PC, you would need to run it in either terminal mode or remote synthesizer mode, depending on whether you are using it as a braille display or a remote synthesizer.
You would plug one end of the null modem cable into the BN and the other end into the PC. You would need to have a screen reader like WindowEyes running on your PC. I hope this helps. Terri Pannett, Amateur Radio call sign KF6CA. Army MARS call sign AAT9PX, California
