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In industry, the RS-485 interface is most commonly used because it uses a multi-point topology that allows you to connect multiple receivers and transmitters. The RS-485 interface is similar to the RS-422 because it also uses a differential signal to transfer data.

Główne różnice między RS-232, RS-422 i RS-485 Oznaczenia RS-232, RS-422 i RS-485 (gdzie RS to (Recommended Standard) są rozumiane jako interfejsy do cyfrowej transmisji danych. Standard RS-232...

The RS-422 interface is similar to RS-232 because it allows the simultaneous sending and receiving of messages on separate lines (full duplex), but uses a differential signal, i.e. the potential difference between conductors A and B.