Measuring standard - DIADUR glass scale Output signals - 5v TTL Quadrature Signal period 4 um or 2 um Accuracy grades - ± 5 µm, ± 3 µm (ML <= 1240 mm) Recommended measuring steps - 1 µm, 0,5 µm Measuring lengths - 70 mm to 2040 mm Reference mark - One, two, or distance-coded