EVERYONE:
The reference below is a goldmine for everyting regarding serial communication 232/422/485 and more.

Himanshu:
RS 232 is only 4 signals, for a discussion go to http://www.national.com/apnotes/A...rface.html

The pinouts of most serial connectors are in AN917 found under 'other' and the RS232 is described - surprise - under RS-232.

Erik