here some differences RS-422 is a differential serial communication standard that allows for point-to-point communication, while RS-485 is a differential serial communication standard that supports multi-point communication Data Direction: RS-422 is a full-duplex protocol, meaning it allows simultaneous transmission and reception of data. RS-485, on the other hand, can be used in both full-duplex and half-duplex modes. In the half-duplex mode, devices take turns transmitting and receiving data on the same pair of wires
