What is RS422/485?

RS-422 and RS-485 are serial communication standards specifying electrical characteristics of drivers and receivers. RS-422 is a unidirectional standard, primarily used for transmitting data over longer distances and at higher speeds than RS-232. RS-485 is a bidirectional, multi-drop standard, allowing multiple devices to communicate on the same bus. It's commonly used in industrial automation, building control systems, and other applications requiring robust communication in electrically noisy environments.