Incremental encoders, DFS2x, DFS21A-KFA1N003000, Mechanical design: Through hollow shaft 1/2″, Communication interface: 4.5 V ... 5.5 V, TTL, RS-422, non programmable, Connection type: Cable, 9-wire, radial, 5 m, Pulses per revolution: 3,000, Flange type / stator coupling: 2-point stator coupling