In a differential system, data is transmitted using two wires for each signal. One wire carries the signal, and the other carries its exact opposite (inverted). The receiver looks at the difference between these two voltages rather than the voltage level relative to ground.
To get the most out of an RS-422 connection, two factors are critical: rs-422 standard
One "driver" (transmitter) can send data to up to 10 "receivers" on the same line. In a differential system, data is transmitted using
However, RS-422 also has some limitations: In a differential system