Re: connecting 2 computers with card 3com etherlink III 3C509TP without HUB

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Article #158

#158

From: Mark Cooperstein
Date: Wed, 20 Aug 1997 00:00

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I think you've got it wrong on the pin numbers for UTP cable (10BaseT). 
According to Cabletron: http://www.cabletron.com/support/connect/utp-stp.htm 
you cross pins 1 with 3, and 2 with 6!!!

   pins            
1---------3
2---------6    
3---------1
4---------4
5---------5
6---------2
7---------7
8---------8

Also, go to the URL above for the orientation of the pins on the RJ-45 
connector.

Mark

In article <33FA5997.90932CEF@nkn.net>, Matt collier <ccg@nkn.net> wrote:
>> We have only connected utp cable without hub (it's possible?!).
>
>Surely, you've figured it out by now, you have to manufacture a
>"special" cable for the job. Swapping the transmit and receive pairs.
>Pins 1+2 on end A should go to 3+5 on end B.  Pins 3+5 on end A should
>go to pins 1+2 on end B.  You should not reverse the pairs, simply swap
>them.
>
>Matt Collier
>Collier Consulting Group
>(972)445-5351
>
>

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From: cooperst@mounet.com.nospam (Mark Cooperstein)
Subject: Re: connecting 2 computers with card 3com etherlink III 3C509TP  without HUB
Date: 1997/08/20
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