RS-423

lastmod 2026-11-10created 2020-01-143 edits

RS-423 is an unbalanced serial communication electrical standard that improves on RS-232. It uses ground-referenced single-wire signaling, but supports longer distances and higher speeds than RS-232, and allows multiple receivers to be connected to a single transmitter. Compared with RS-422, which uses differential signaling, it has lower noise immunity and a narrower range of practical use.

See also

• Serial Communication
• RS-232 / RS-422 / RS-423 / RS-485