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EMC Conducted Immunity Testing of Cables

19 December 2013 – Teseq has expanded its extensive line of over 60 CDNs (coupling/decoupling networks) for EMC RF conducted immunity testing, according to IEC/EN 61000-4-6, with several new models. The latest models include CDN USB 3.0, CDN HDMI, CDN S502, CDN S752 and CDN A801. Designed for use with shielded USB cables, the CDN USB 3.0 offers testing of all existing USB interfaces.

It is compatible with USB versions 1.0, 1.1, 2.0 and 3.0 (also called Superspeed USB) and is fitted with a nine pin “A” type connector on EUT (equipment under test) and AE (auxiliary equipment) ports. The CDN USB 3.0 allows higher transfer rates of up to 4.8 Gb/s, increased maximum bus power, and now full-duplex data transfers. It also improves the interaction between the device and host computer. Teseq’s CDN USB 3.0 is capable of testing all the latest USB technology including digital cameras, high definition displays, hi-end solid-state drives and RAID arrays.

Teseq’s new CDN HDMI, designed for screened multimedia cables, can be used in all high speed HDMI applications including DVD players, Blu-ray DVD, gaming systems, cameras, camcorders and cable TV decoders. This CDN is fitted with an HDMI “A” type connector on EUT and AE ports. All 19 pins are connected for compatibility with high speed HDMI version 1.4 with HDCP, HEC (Ethernet), ARC and DSC.

Both the CDN S502 and CDN S752 allow testing on coaxial 50 Ohm and 75 Ohm interfaces. Each CDN is fitted with “N” type connectors on EUT and AE ports. A high-performance, double-screened cable within the CDNs allows for the most consistent test results. Also available from Teseq are 50 Ohm and 75 Ohm CDNs with BNC connectors.

Teseq’s new 8-line CDN, the CDN A801, from 150 kHz to 300 MHz, and CDN A801-10, from 10 kHz to 80 MHz are designed for testing unscreened and unbalanced control interfaces. These CDNs are fitted with 4 mm banana connectors on EUT and AE ports, which allow them to be easily adapted to a wide variety of control interfaces such as RS-232, RS-422, RS-485 or custom interfaces.

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