Omega’s ZSD series of shaft servo mount, rotary pulse generators features high precision accuracy, NPN open collector output, and quadrature outputs with indexing. The series is suited for applications requiring a miniature, high-precision, low-cost encoder. Construction is all metal for trouble-free operation. Outputs are standard quadrature with index, available in 100 or 1000 pulses per shaft revolution. The sensors’ open collector outputs bring the uncommitted collector of the encoder switching device to the external world. Because the collector element is not associated with the sensor supply voltage, the sensor output collector may be “pulled up” to external voltages (30 V dc maximum) different from the encoder supply voltage.