PSSu K F EI CV 312434 PSSu, compact module, failsafe, counter, safe motion monitoring, recording position counter value, 2 outputs, failsafe, 0.5 A,single-pole, positive-switching, short-circuit proof overload-proof, free fromfeedback, 1 output, standard, 0.5 A, single-pole, positive-switching, short-circuitproof, 1 combined input and output CIO for cascading, standard, 1 input for encoder, Mini-IO female connector, 8-pin, 2 inputs for proximity switch.