Wiring RJ-45's to Cat5e.

[lesbentley]

This is my first time trying to build a pear-to-pear network. I have an Nway 10/100 8 port switch, 5 no name 10/100 NIC's, a roll of UTP cat5e and some RJ-45's.

My question is does it matter which way I wire the RJ-45's (as long as both ends are wired the same)?

I have herd different opinions on this, the guy at the computer shop where I bought the cable says it doesn't matter.

KoWind7, says:
[quote] the order of the cables does not matter, as long as you keep the pairs together <hr></blockquote>


Milenko, gives a specific order:
[quote]There are differences between cabling for 10 and 100 mbit. The 100 method can be used for both, but the 10 method only works for 10.

100 mbit cabling should go:

orange/white
orange
green/white
blue
blue/white
green
brown/white
brown

<hr></blockquote>

Note that:

orange
green/white
blue

is not keeping the pairs together (I take "pairs" to mean green/white goes next to green).


I can't see why the order should make a diffrence as long as both ends are wired the same, and each wire in the cable is of the same specification, but maybe they aren’t!

Could someone please clarify, as I have to do some of the cabling today. Also any general tips appreciated.

[imaeditedbysowulo]

If you are not close to the maximum cable length, (100m) than it will work fine. If you were making cables close to the maximum length, it could have an impact because of the way the cables are twisted, but as long as this is just for your own home use do it anyway you like.

However, as a technician who has had to troubleshoot existing wiring, it adds confusion when the wiring is not done to specs, and it makes you think the person who did the wiring didn't know what the heck they were doing.

[Ya_know]

For 10/100 ethernet all you need is pin 1,2,3, and 6. 1&2 must be a twisted pair, and 3&6 must be a pair in order to maximize the length, and minimize cross talk. Match RJ45's on both ends, and be sure that you trim the pairs to identical lengths, and get all four of the wires all of the way to the end inside the connector. If one comes up short and you crimp it, you will probably have to do it a second time.

[itsmewhoelse]

Again, Windrivers has an excellent help section on this topic. It's here...

<a href="http://www.duxcw.com/digest/Howto/network/cable/cable2.htm" target="_blank">http://www.duxcw.com/digest/Howto/network/cable/cable2.htm</a>


Cia`o
Wesley

[lesbentley]

Thanks, itsmewhoelse. Your posting was concise, and the link was exactly what I needed.

Regards, TopHat.