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 > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list