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EIA-485 (RS-485)

Introduced by the Electronic Industries Alliance (EIA) in 1983, EIA-485 is an alternative to RS-232 point-to-point serial communication. It supports multiple devices on a signal bus up to 1200m(4000ft) in length and uses differential signaling, making it less susceptible to external interference. EIA-485 is primarily used in commercial and industrial applications.