RS-232

Keith's RS-232 Library :

- Documentation with download.
Quick Reference :

- For RS485, RS422, RS232 and RS423.
RS-232 Diagnosis Tech Bulletin From Mike Sandman :

- RS-232 Serial Communications is not that hard.
The RS232 Standard :

- A tutorial with signal names and definitions.
Serial/Rs-232 Interfacing :

- Detailed explanations on interfacing the serial port.