Connecting the Quiet Spindle and Speed Controller upgrade for Shapeoko 2

Inventable Comminity,

I just bought a Quiet Spindle and Speed Controller for my Shapeoko 2. I see video’s for connecting it to the gShield using the isolated relay, but I don’t have the relay and was informed that I don’t need it. I would like to get some instructions/help on how to connect these two items to the gShield without the relay. Your help is appreciated, thanks…Bruce (bnicholas341@gmail.com)