The third result from a google search of 'aui network pinout'
gives:

http://www.cablingdirectory.com/pinouts/network/AUICablePinout.htm

-e

On Tue, Sep 04, 2001 at 11:48:19AM -0700, Don Yuniskis wrote:
> Greetings!
>      Does anyone know the pinout of the network connector
> on the classic (*not* the RJ45)?  Or, have a mating
> transceiver that can be examined to deduce same?
> 
> Thx!
> --don