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Coupling/Decoupling network for unshielded unsymmetrical interconnection lines in accordance with IEC / EN 61000-4-5 and IEC / EN 61000-4-12. The CNV 504N model combines two different applications; coupling of Surge pulse via capacitor (0.5 µF) and coupling of Ringwave pulses via capacitor (3.3 µF) being required by the relevant standards. The required coupling mode can easily be selected by means of a simple jumper. The CNV also include the required decoupling, consisting of decoupling inductors of 20mH for each line.   To protect the auxiliary equipment being needed for testing the DUT an additional protection circuit is integrated at the signal/data line input.  

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