How to use Virus Ti Snow as an audio input via logic X to exploited sound effect and controllers.

Hi.
Trying to understand how to route and audio track from logic to the input of my Virus snow on Logic X.
i m now in usb exit 1&2.
I v set up patch utility in 3 output and one input.
But then here start the mistery of whats next.
Any help is more than welcome thanks