Base Roamio + Mini on Fios, need MOCA adapter?

I'm looking to buy a base model Roamio and one Mini. I'll have them set up on fios, which I understand creates a MOCA network.



Can I simply plug the coax from the wall to the Mini, and just use ethernet straight from the MOCA router to the Roamio? Or do I need also need to attach the coax to the Roamio via a MOCA adapter?