I've read that speed of rs-232 depends on length of cable. There are many different tables that describe this dependency. But speed although should depend on voltage of Rx and Tx signals. How maximum theoretical speed of rs-232 depends on voltage? How can i calculate this speed at +-5V and +-12V?
Theoretical baud rate means that we know capacity of the cabling C and inductivity L. Transmitter and reciever are ideal. They can give any waveform. Does the voltage affects baud rate in this terms?