What does RMS mean?
The acronym means Root-Mean-Squared. This means the DC voltage which would generate the same heat in a resistor as the AC voltage you have. The usefulness is that you know the actual power being consumed and not an estimate as in peak-to-peak calculations. RMS takes much more computing power but is more useful.
Physical scientists often use the term “root-mean-square” as a synonym for “standard deviation” when referring to the square root of the mean squared deviation of a signal from a given baseline. In our case, high values could be caused either by frequent path vector changes, unstable/congested links or a combination of both. Low values would naturally imply the opposite. Of course, there may be other interpretations too.
