[aclug-L] Re: (no subject)

[Jonathan Hall <jonhall@xxxxxxxxxxxx>]

Well, not really... 

A null modem cable is to serial communications what a crossover cable is to
ethernet communications.

Null-modem is used for serial communications... to emulate a modem.

Crossover is used for ethernet communications... to emulate a hub.


On Thu, Mar 02, 2000 at 11:46:33PM -0600, John Reinke wrote:
> I assume a null cable is another name for a crossover cable...
> 
> Hold the plug pointing upward, and the clip facing away from you (you
> should see the metal contacts). The wire on the far left is number one.
> 
> Use the chart below. The number on the left side is the pin on the first
> plug, and the other number is the pin it matches to on the other end of the
> cable. 10BaseT really only uses four of the eight wires, so you can match
> the other wires to the same position on the other end.
> 
> 1 ==> 3
> 2 ==> 6
> 3 ==> 1
> 6 ==> 2
> 
> Remember to mark the cable somehow, so you don't use it as a regular cable.
> 
> John
> 
> >Does anybody know which wires to swap to make a null network cable.
> >(ethernet)
> >
> >I have ehernet on the cpu, and on the laptop.
> >
> >
> >--
> >Michael A. Holmes
> >
> >He who laughs last thinks slowest. :-)
> >
> >-- This is the discussion@xxxxxxxxx list.  To unsubscribe,
> >visit http://tmp2.complete.org/cgi-bin/listargate-aclug.cgi
> 
> 
> 
> 
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--
Useless fact #3: There are 293 ways to make change for a dollar.
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