1/4 inch tape decks

Hello. I am new to the forum and new to tape recording, too. In fact, I just purchased a Portastudio 414 MK II and am waiting for it to arrive. I will mostly fiddle around with it to make demos on its own, but once I have the basics figured out I want to know how best to connect this to my computer.

So I wanted to run some audio to my 1/4" tape machine. The Roland manual states that there are "audio outs" in the rear of the unit - they are balanced/unbalanced jacks 1/4". TS or TRS.

I've used them before for headphone monitoring etc. The manual states 0DBu nominal level, so I suppose this is under line level 4 dbu.