Nope, I'm 99% sure the RJ45 cable is not a regular CAT4/CAT5 style ethernet
connector, since I have some of the same Asante adapter dongles with RJ45
jacks on the end of them (IE the AUI->RJ45 connector fits into a box, that
has another RJ45 jack on it that's the ethernet interface.)
AFAIK the signals on the 'mini centronics' connector on the Mac are much
the same as the 'real' AUI interface, with the exception that there's a
5V power line, not 12V. In which case you can't link it directly to a 10
base T hub. you need a trasnceriver.
Man I hated thinnet :)
Why? I much prefer it to 10 base T, which has a bub I need to be able to
repair. At least with thinnet, all I have to fix are the transceivers
(and some of those are built from discrete trasnsitors and ECL chips (!)).
-tony