Item was installed inside an industrial cabinet, receiving 12 V pulses with a frequency range f 300 to 4300 Hz,with fill factor of 33%. Mounted over DIN rail ,was used in retrofit project to adapt information from a shaft encoder to a high speed acquisition board. Connection was push-pull type. LabView 8.2 was used ,programmed to  set and graphically decide an average value to be used to optimize a hydraulic pressure. [ acquisition board and LabView not included in scope of supply ].