Coupling/Decoupling Network for Unshielded Symmetric High-speed Communication Line

CDN 405T8A1

The CDN 405T8A1 unshielded symmetric high-speed communication line CDN, compliant with IEC 61000-4-5, GB/T 17626.5, is a professional CDN dedicated to lightning surge immunity tests on unshielded symmetrical high-speed communication lines. With 1,000 Mbit/s transmission rate, it delivers steady, loss-free communication throughout tests to replicate the EUT’s real working status, avoiding interference-caused misjudgments and guaranteeing consistent, precise test data.

The CDN 405T8A1 with excellent decoupling capability can keep the residual voltage at the AE port as low as 200 V under a 6 kV test voltage. It protects auxiliary equipment from influence of interferences and cuts system complexity and improves test efficiency greatly, meeting compliance verification requirements for industrial, railway and other sectors.

Connection Schematic：

Design Schematic：

> Max. pulse withstand voltage 6 kV

> Support data transmission rate up to 1,000 Mbit/s

> Support coupling waveform 1.2/50 μs, 8/20 μs; 10/700 μs, 5/320 μs

> Support EMC generators of all brands, quick connection without extra adaptation

> Superior decoupling, no extra auxiliary protection; plug-and-play to cut setup cost

> External coupling resistor are replaceable