Artek’s CLE1000-S2 represents a new version of the Variable ISI Channel. The S2 channel, based on unique analog-signal technology that leverages advanced electromagnetism theories, helps reduce undesired ringing and overshoot. Designed for tolerance stress tests on high-speed serial interfaces, it features a passive, dc-coupled differential transmission line. The adjusted ISI amount remains stable and repetitive to ensure secure test results. The ISI channel adapts to a variety of tests over a wide range of standards. It operates from 4 to 38 dB at 28 Gbits/s.