The Heidenhain RON 200 Angle Encoders comes in the options of RON 225, RON 275, RON 285 and the RON 287 series Incremental angle encoder with integral bearing and integrated stator coupling. The line counts for the RON 225 is 9000 and on the RON 275, RON 285 and the RON 287 is 18000 line count. Depending on the version that you choose the output can be either TTL or 1Vp-p. In addition, the RON 200 series offers one reference mark or RON 2xxC is distance coded. All RON series have a hollow through shaft for axial clamping, diameter is 20mm.