2025-03-06 22:12:10R. Bishop:
Adjusted common ground section
communications/serial/rs485.md ..
@@ 54,7 54,7 @@
The term **common mode voltage** refers to the voltage difference between the grounds of two different devices. Ground loops, electromagnetic interference, and power supply variations can introduce unwanted voltage offsets.
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If the common mode voltage exceeds the specified limits of the transceiver, communication errors can occur. For a detailed explanation, watch this [YouTube video](https://www.youtube.com/watch?v=0GzEt2Sfe4k) by Vocademy.
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If the common mode voltage exceeds the specified limits of the transceiver, communication errors can occur. For a detailed explanation as to why this happens, watch this [YouTube video](https://www.youtube.com/watch?v=0GzEt2Sfe4k) by Vocademy.
### **What happens if there is no common ground?**