Why Do RS-485 Buses Need Pull-Up and Pull-Down Resistors? Introduction RS-485 is one of the most widely used differential signaling standards in industrial automation and communication systems. It offers strong noise immunity, long transmission distances, and support for many nodes ...
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How Far Can RS-232, RS-485, and CAN Actually Transmit?
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Introduction RS-232, RS-422, RS-485, and CAN bus are among the most common communication methods in IoT applications, used for data transmission between different devices. Each interface has its own transmission speed and reach—but how far can they actually go, and ...