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Geek Culture / network cable

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DK_
20
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Joined: 4th Jan 2004
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Posted: 26th Jun 2004 00:19
I was just wondering if it really matters what order the wires are in a network cable. I know that it does matter if you are doing a crossover cable for connecting a pc to another or hub to another hub. But since the normal way is "Greenwhite, Green, Orangewhite, Blue, Bluewhite, Orange, Brownwhite, Brown" it shouldn't matter if you do "Brownwhie, Green, Blue, Orangewhite, Brown, Greenwhite, Orange, Bluewhite" or just make up some other order as long as you make the other end the same. Does this make a difference? I don't think it should make a difference what color the insulation of the wire is as long as its destination is the same order as its start.

If this is true then you should also be able to make up your own order for a crossover cable just as long as it follows the same pattern. Is this correct, I was just wondering because I usually make my own network cables and they always work fine It's just that sometimes the wires are in a difficult position like the green wires are in the center which makes it hard to position them on the side. So I was just wondering if the order matters just as long as the other end is the same.

CattleRustler
Retired Moderator
21
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Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 26th Jun 2004 00:30 Edited at: 26th Jun 2004 00:40
according to CAT5 standards it does matter, all the way down to the electro magnetic level.

straight-thrus are the same on both sides
net-crossover have the send/recieve wires crossed

hardware devices like routers/hubs/switches handles this crossover business internally, but when direct connecting 2 pcs with a lan cable you need to cross the send/recieve - hence the name "network crossover cable"

The color code you stated in the first part of your post is considered CAT5, CAT3 is slightly different and supposedly cant handle high data rates.

I am sure the is a wealth of knowledge on these topics on line



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lagmaster
22
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Joined: 26th Aug 2002
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Posted: 26th Jun 2004 02:33
technically if the wires match both end, it will work.

like the cable was wired up different and the panel had exactly the same wiring.

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