token ring?

hi, I've got a couple of 2521's which don't have ethernet, only token ring. I was thinking of getting a token ring hub so that I can expermitent with broadcast multiaccess networks. am I right in thinking they use standard ethernet cat 5 cable? am I also right in thinking token ring is layer 2, so IP will sit ontop and the layer 2 is largely irrelevant? (for the purposes of experimenting with layer 3 techonoligies)