What’s The Difference Between The RS-232 And RS-485 Serial Interfaces? (.PDF Download)

This article is part of the Communication Series: What’s the Difference: Serial Communications 101

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Dozens of serial data interfaces are used today. Most have been developed for specific applications. A few have become universal, such as I²C, CAN, LIN, SPI, Flex, MOST, and I²S. Then there’s Ethernet and USB and other higher-speed serial interfaces like FireWire, HDMI, and Thunderbolt. Two of the oldest interfaces are...