SPEED sets up the RS232 communications port.

Entering SPEED without parameters at the command line will open the SPEED program from which the user can determine the desired parameters.

From left to right, they are: Baud Rate – Data bits – Parity – Stop bits – Flow Control

When communicating with a modern PC a low baud rate is recommended, 2400 baud being ideal. A higher baud rate usually results in buffer overflow.