Optical Isolation in USB–DMX (TZ-1U / TZ-2U): Why It Matters Sep 8, 2026 0 24 Buying a USB–DMX interface is not only about channel count. On a real stage you meet ground loops, voltage spikes, ESD, and EMI noise that can reset fixtures, freeze dimmers, or—worst case—damage the ... EMI ESD Neutrik TZ-1U TZ-2U aislamiento óptico USB DMX ground loop optoaislación Read more