Computer Hardware Terms, Glossary and Dictionary

EIA-422, also known as RS-422 or TIA-422, is the balanced electrical implementation of EIA/TIA-449 for high-speed data transmission. Now referred to collectively with EIA-423 as EIA-530, it provides for data transmission, using balanced or differential signaling, with unidirectional/non-reversible, terminated or non-terminated transmission lines, point-to-point, or multi-drop.

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EIA-422