it may be worth noting, that in my brief search, i found a diagram for 
and aui to aui crossover cable.

-e

On Wed, Sep 05, 2001 at 02:07:48AM +0700, Robert Elz wrote:
>     Date:        Tue, 4 Sep 2001 11:48:19 -0700
>     From:        "Don Yuniskis" <auryn@gci-net.com>
>     Message-ID:  <001101c13572$2f03b300$275c20d0@George.WDMSetc.com>
> 
>   |      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?
> 
> The answer to that was just provided - but why would you want to know?
> 
> Unless you're planning on building your own transceiver, the pinout of
> that particular connector is basically useless.  AUI connector pinouts
> (as distinct from the mounting brackets) are one of the more precisely
> standardised interfaces around - any 10Mbit/sec transceiver ever made
> (for 10base5, 10bse2, 10baseT, 10baseFL - maybe others) will connect,
> directly, or via an AUI cable, to that connector - nothing else will,
> nor would it be sensible to try connecting anything else.
> 
> kre