This document specifies test methods for measuring the attenuation of converted differential-mode signals into common-mode signals, and vice versa, due to unbalance characteristics of cables used in analogue and digital communication systems. The unbalance attenuation is measured in, respectively converted to, standard operational conditions. If not otherwise specified, e.g. by product specifications, the standard operational conditions are a differential-mode which is matched with its nominal characteristic impedance (e.g. 100 Ω) and a common-mode which is loaded with 50 Ω.
PUBLISHED
EN 3475-811:2009
IN_DEVELOPMENT
FprEN 3475-811
50.20
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Aug 13, 2026