The input of Kubler 1D-1D universal level converter, direction decoder and potential isolation amplifier PW 1D-1D accepts as well single-track as double-track incremental encoder signals, which can be implemented as RS422 / TTL or as HTL level (10 - 30 V). If the signal includes the direction of rotation, this direction can be defined either by a 90° phase shift of channels A and B or by a static direction signal. The module can be easily and conveniently mounted in a cabinet on a standard DIN rail.