When the *BW is open or held low, the TX output delivers asynchronous serial with an RS232 format, except
voltages are 0-Vcc. The output is an ASCII capital “R”, followed by three ASCII character digits representing the
range in inches up to a maximum of 255, followed by a carriage return (ASCII 13). The baud rate is 9600, 8 bits, no
parity, with one stop bit. Although the voltage of 0-Vcc is outside the RS232 standard, most RS232 devices have
sufficient margin to read 0-Vcc serial data. If standard voltage level RS232 is desired, invert, and connect an RS232
converter such as a MAX232. When BW pin is held high the TX output sends a single pulse, suitable for low noise
chaining. (no serial data)