Do you confuse Morse code with UART protocol?
In a half duplex current loop it's the only solution to keep all idle keys closed. Voltage driven connections are point-to-point with arbitrary mark and space levels.
Do you confuse Morse code with UART protocol?
In a half duplex current loop it's the only solution to keep all idle keys closed. Voltage driven connections are point-to-point with arbitrary mark and space levels.