RE: Using RJ45 crimp tool

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As some of the people have already alluded to, the pair matching does
matter. Category 5/5e/6 all have different twists, and Category 6 even
has a piece of plastic in the cable the keeps the twisted pairs
separated. Matching the pairs to the standards of EIA/TIA 568a and 568b
help alleviate crosstalk in the cable. 

I found a link that should be helpful.

http://www.ablecables.com.au/568avb.htm

James Williams
Network Systems Engineer


-----Original Message-----
From: redhat-list-admin@xxxxxxxxxx [mailto:redhat-list-admin@xxxxxxxxxx]
On Behalf Of Zyski, John
Sent: Friday, October 03, 2003 1:48 PM
To: redhat-list@xxxxxxxxxx
Subject: RE: Using RJ45 crimp tool

This might be nitpicky, but as I understand it, color order does matter
due to the use of the twisted pairs.  The pairs are twisted to
compensate for the spin of the energy moving through the cables,
lessening the occurrence of cross talk.  The popular standards consider
the use of the pairs in such a manner.

Inventing your own color pattern will cause a degradation of
performance.

-----Original Message-----
From: Nick White [mailto:nwhite@xxxxxxxxxxx]
Sent: Friday, October 03, 2003 2:37 PM
To: redhat-list@xxxxxxxxxx
Subject: RE: Using RJ45 crimp tool


Pin 1 is on the left if the "hook" is on the bottom.  Like an earlier
poster said, it really doesn't matter what color goes where, as it's the
order that counts.  The most common standard used these days (568B) is
as Harold pointed out:

1 White-orange
2 Orange
3 White-green
4 Blue
5 White-blue
6 Green
7 White-brown
8 Brown

It's also worth mentioning that if you want to make a crossover cable,
just swap the orange and green pairs on 1 end of the cable.

> -----Original Message-----
> From: cajun [mailto:cajunlee@xxxxxxxxxx] 
> Sent: Friday, October 03, 2003 11:18 AM
> To: redhat-list@xxxxxxxxxx
> Subject: Re: Using RJ45 crimp tool
> 
> 
> Harold Martin wrote:
> 
> >Hello,
> >Can anyone point mt toward a how-to on using an RJ45 crimp tool?
> >Thanks,
> >Harold
> >
> >
> >  
> >
> Hi Harold,
> 
> I don't think there is any how to on that.  What are you 
> needing to know 
> exactly?  Or you needing to know the pin out for the wiring?  
> If so here 
> is what I have always used:
> 
> Pin No.        Strand Color           
> 1                    white & orange
> 2                    orange
> 3                    white & green
> 4                    blue
> 5                    white & blue
> 6                    green
> 7                    white & brown
> 8                    brown
> 
> HTH!!
> 
> Lee Perez
> 
> 
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