Tag: RS232

After yesterdays post on the differences between RS232 and RS485, we have been asked a few times why RS485 is more noise immune. It is because RS485 uses a differential signalling method. Here’s how it works, and why it’s effective: 🔗 Differential Signalling in RS485: RS485 uses two wires to carry a pair of signals that …

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RS232 and RS485 are standards for serial interfaces that each specify the transmission media and a defined set of logic levels, data rates and timings. These are some of the oldest serial interfaces around, yet they are still very widely used in control and measurement equipment, mainly due to their simplicity and low cost. RS232: …

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