Serial, RS232
Overview
Communication as defined in the RS232 standard is an asynchronous serial communication method. The word serial means, that the information is sent one bit at a time. Asynchronous tells us that the information is not sent in predefined time slots. Data transfer can start at any given time and it is the task of the receiver to detect when a message starts and ends.
Achievable distances
Baud rate | Maximum cable length (ft) |
---|---|
19200 | 50 |
9600 | 500 |
4800 | 1000 |
2400 | 3000 |