Using a relay to control a haze machine through 5 pin din

Ive bought a relay to control my haze machine from DMX as this video https://www.youtube.com/watch?v=9N_5diiYLPI in the video the relay controls the smoke machine through the 5 pin din remote input… in the vid he says he just mucked around to find the right wires to trigger it… My Kam Atmosphere haze machine has a circuit board on the other end of the 5 pin din… having 5 volts running down one of the wires Im worried that just messing around might damage the board inside… has anyone any idea which of the five pins would trigger the haze machine… and also are 5 pin dins of smoke machine remotes standard across most makes