39
7.6.
CDN Coupling/decoupling network
The CDN’s are connected externally at the output of the 6dB-attenuator.
The coupling network is used to couple the interference to the lines of the
equipment under test. The coupling is realized with capacitors or resistors
having a sufficient bandwidth according to IEC 61000-4-6.
The components, the impedance, and the coupling factor are specified
within the standard.
The components, the impedance, and the
coupling factor are specified within the
standard.
CDN
Examples for a single shielded line (S1) and a 3 line power supply (M3) are
shown below.
CDN S1
CDN M3
EUT port
IN port
AE port
Isolations-
Material
L
R
EUT port
R
C
1
L
C
2
IN port
AE port
PE
N
L
Isolations-
Material
