This module can be used as a safe signal interface switching for PLC or other industrial control boards because it includes an optocoupler stage and the output voltage is regulated by adjusting the duty cycle ratio of the PWM.SpecificationsOperating voltage: 12-30 VdcConversion range (0 – 100% PWM): 0-5 V or 0 – 10 VDimensions: 33.5mm X 33.5mm X 14mmPinoutVcc: module power.GND: module ground.PWM: PWM input signalFor peak levels of 4.5V to 12V, leave the jumper cap in the default position, this level is used for 5V MCU.For peak levels of 12 to 24V, move the jumper cap to the pins closest to the edge of the board, this level is used for the connection of PLCs and industrial controllers.GND: PWM input groundVout: Analog output voltageGND: Analog output ground