Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!unmvax!ariel!dd
From: dd@ariel.unm.edu (dd)
Newsgroups: comp.dcom.lans
Subject: Re: Avoiding a transceiver
Message-ID: <1060@ariel.unm.edu>
Date: 6 Dec 89 01:39:58 GMT
References: <7014@ficc.uu.net> <6784@pdn.paradyne.com>
Reply-To: dd@ariel.unm.edu.UUCP ()
Organization: University of New Mexico, Albuquerque
Lines: 28

In article <6784@pdn.paradyne.com> dixon@gumby.paradyne.com (0000-Tom Dixon) writes:
>In article <7014@ficc.uu.net> kunkee@ficc.uu.net (randy kunkee XNX MGR) writes:
>>Question:  If you only want to connect two systems together, via Ethernet,
>>it seems that it should be possible to do this simply with a transceiver
>>cable properly adapted to rearrange the signals.  We have some special
>>situations in which this would be desireable (ie. much cheaper).  Does
>>anybody sell such an adaptor?
>
>This is not impossible.  It is the AUI equalvilent of a cross DTE cable. 
>You don't have to worry about losing collision detection because
>each machine xmits directly into the reciever of the other machine.

   Collision detection is EXTREMELY important, since the interface
   cards generally depend on this for "serializing" access to packet
   buffers.  I have tried to get this to work, to no avail.

   All is not lost however:  The ANC division of Niravoice (or maybe
   they have changed their name, I dunno.  Anybody else know?) sells
   a gadget called the ANC-10 AUI-to-AUI adapter for ~$180 (the last
   time I checked).  It does exactly what you want.  Has lots of
   good diagnostic lights too.  Mail me if you need additional info.
   I am not associated with the company, but am a satisfied
   customer.
-- 
Don Doerner				dd@ariel.unm.edu
University of New Mexico CIRT
2701 Campus Blvd, NE
Albuquerque, NM, 87131			(505) 277-8036