Rs-422 Standard
An evolution of RS-422. While it uses the same differential signaling, it allows for Multi-point configurations, meaning multiple transmitters and multiple receivers can exist on the same two-wire bus. Common Applications
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. rs-422 standard
(formally TIA/EIA-422-B ) is a technical standard specifying the electrical characteristics of a balanced voltage digital interface circuit. Introduced by the Telecommunications Industry Association (TIA), it is widely used for serial data transmission over longer distances and in electrically noisy environments. Unlike its predecessor RS-232, RS-422 is differential , making it far more robust. An evolution of RS-422
The "middle ground." It offers high speed and long distance with great noise resistance. However, it is primarily meant for a single master talking to multiple listeners (Multi-drop). One wire carries the signal, and the other
Up to 1,200 meters (approx. 4,000 feet) at lower speeds.
The RS-422 standard is defined by its impressive performance metrics, which far exceed the capabilities of older serial standards: Up to 10 Mbps (at short distances).

