The pulse, direction, and enable outputs are open collector circuits. Below is a detailed schematic of these outputs. Each output is capable of sinking up to 40mA of current.  

Single PUL DIR ENA Output


Below shows an example wiring diagram between the pulse, direction, and enable outputs on the CMD-4EV. The  diagram also displays the corresponding inputs on a typical stepper driver.

Wiring PUL DIR ENA Output - Single to Single.bmp