All Technosoft drives use the following settings for the RS232 communication: 8 data bits, 2 stop bits, no parity and no flow control. The RS-232 protocol is full duplex, allowing simultaneous transmission in both directions.

After power on or reset, the default baud rate is set to 9600bps. Once the communication between the host and the drive is established, the baud rate can be changed to higher values, up to 115200bps, by sending the SCIBR instruction to the drive.