Overview
CNV 504 / 508 T-series - Coupling decoupling networks for unshielded communication lines
According to IEC 61000-4-5 Ed.3, (Fig. 10) the pulses are coupled via gas arrestors and a matching resistor per line.
SURGE 1.2 /50 US
CNV 504 / 508 T-SERIES - SURGE COUPLING/DECOUPLING NETWORKS FOR COMMUNICATION LINES
The EM TEST CNV 504 / 508 T-series coupling/ decoupling networks are designed to couple Surge pulses (1.2/50us - 8/20us) and Telecom Surge pulses (10/700us) onto unshielded symmetrically operated communication lines.
The CNV-models includes the coupling via gas arrestor plus the internal matching resistor Rc as per figure 10 of IEC 61000-4-5 Ed.3 with values as per the formula given by the standard. All lines are subjected to the test pulse simultaneously with respect to ground.
The CNV also include the required decoupling part consisting of decoupling inductors of 20mH for each line, pairwise current compensated. To further protect the auxiliary equipment being needed for testing the DUT an additional protection circuit is integrated at the communication line input.
SURGE 10/700 US
CNV 504 / 508 T-SERIES - TELECOM SURGE COUPLING/DECOUPLING NETWORKS FOR COMMUNICATION LINES
The CNV 504 / 508 T-series is also designed as per figure A4 of IEC 61000-4-5 Ed.3 without primary protector. If required, an additional primary protector must be integrated according the user specifications.
With short circuit bridges and individual designed coupling devices the user can easy modify the coupling mode and number of tested lines to the requirements.
EM TEST offers CNV 504 / 508 T-series coupling/decoupling networks for test voltages up to 5kV.
