Featuring standard diameter of 35 mm, Models ECN 1013, EQN 1025, ROC 1013, and ROQ 1025 measure absolute position in different machines and devices with limited installation space. In addition to SSI standard resolution of 13 bits singleturn and 12 bits multiturn, encoders provide high-resolution position value through external interpolation of 1 Vpp output signals. Units also offer 512 signal periods per revolution and extended power-supply range of 4.75–30 V.