Allied Telesis made a "multi port tap" that
provided four AUI ports off a
single Ethernet tap. I don't know if it was a repeater/hub inside, or what.
It was much smaller than a DELNI or DEREP.
That totally sounds like the one located in the Cray. My guess is most
people would hook AUI transceivers but they just run ribbon cables to 4
boards then I think the 10base2 feeds into a BNC T plugged into it.
- Ethan