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Serial Data Communications

Electronic communications is all about interlinking circuits (processors or other integrated circuits) to create a symbiotic system. For those individual circuits to swap information, they must share a common standard communication protocol. Many communication protocols have been designed to achieve data exchange.

The most common serial communication protocols are RS232, RS485, RS422, USB, and Ethernet.  But because USB and Ethernet require powerful interfaces with complex protocols, many efficient devices utilized RS232, RS485, and RS422 which is what this note is all about.

AN236(SerialComm) (pdf) Serial data communications application note.  The advantages of using RS422, the advantages of RS485, and the advantages of RS232 serial data communications. What’s the difference between RS232 and RS-485? The answer is here.

Filed under: Hardware Information, SCADA and Telemetry, Uncategorized | Posted on April 9th, 2019 by John Sonnenberg

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