how hook up bluesound node 2 to external dac


I just received my bluesound node 2i and have a couple of questions. How do I connect it to my external dac and can it use USB cable or does it need to be toslink or coaxial.  I know several of you do this your help would be appreciated.

Mike 
zardozmike
Got everything sorted, now just experimenting what options are available.  One more question is cables, which one is is your best experience.  In my system cables really do make a difference. 

Mike 
Since all outputs are active on the Node you can experiment between optical and coax. I happened to prefer coax with my system.