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I have just bought 60 meters of CAT6e cables, sold as "4 pair UTP RJ45".

I have looked at various videos on Youtube but I cannot determine the correct wiring. all the colors of the cable I saw there are different from mine. Mine is untwisted, and it is not color coded. I have 8 pin connectors all of a single color.

How should I wire this cable?


THE PACKAGE DOES SAY TWISTED but they are not (twisted).

enter image description here

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From your photo, that is not UTP cable, it may be suitable for voice telephone use but not for Ethernet. It wouldn't meet Cat-6 or even Cat-5 requirements - "Each of the four pairs in a Cat 5 cable has differing precise number of twists per metre to minimize crosstalk between the pairs." – RedGrittyBrick Mar 23 '12 at 23:45
@RedGrittyBrick thanks for your comment very helpful.will contact company.Doubt i will get money back.I have some cables like that and they seem to work on the cable it's written "verified TIA/EIA T68B B.2 CAT6".So all cable cat6 or catA are twisted .Is that correct? – user9969 Mar 24 '12 at 6:18
Yes, all Cat5, Cat5E, Cat6, Cat6a are twisted. – RedGrittyBrick Mar 24 '12 at 12:18
up vote 5 down vote accepted

If your cable isn't twisted, you have the wrong cable (either by accident or deliberate swindling). CAT6 cables are composed of four twisted pairs by definition. You specify UTP - that means 'unshielded twisted pair'. It's supposed to look like this.

enter image description here

That's not to say that this stuff might not in theory do the job, but it's not up to spec so I'd just get my money back if I were you. Also, if it's not color-coded, the only easy way to tell which wire is which is a continuity tester. It doesn't really matter which strand is which, as long you're consistent - they're all the same copper. (The default pinouts are chosen to reduce crosstalk, I believe, though, so they're not entirely arbitrary.)

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@user231465 - That cable is not what that website says it's selling. Hell, look at their own picture - it's not even close. Call and complain and get your money back. – Shinrai Mar 23 '12 at 21:40
@SteveFallows - Except they're not twisted pairs. The problem is that this isn't even the right cable, which is what I've been trying to say all along. ELECTRICALLY speaking, it doesn't matter (but in terms of data signals, crosstalk, etc, it does, which I said already) – Shinrai Mar 23 '12 at 22:03
+1: There's not even really a CAT6e, and all variations of CAT6 require the wire to be in twisted pairs. "Like most earlier twisted-pair cable, Category 6 cable contains four twisted wire pairs"; Installation: "The wire pairs must not be untwisted and the outer jacket must not be stripped back more than 1/2 inch (1.27 cm)." link. There is also a TON of fake "CAT6e" cabling for sale out there. :) – Ƭᴇcʜιᴇ007 Mar 23 '12 at 22:31
CAT6A exists. You sure you read that Wikipedia entry? :) No need for confusion, you bought fake "CAT6E" cabling, and got some generic industrial cabling. I can tell by looking as the sheathing in your pic that it's CHEAP. Also, there's no such thing as "RJ45" cabling either because RJ45 is the jack, not the cable. ;) – Ƭᴇcʜιᴇ007 Mar 23 '12 at 22:51
@user231465: The web-page you link to is contradictory, the graphic title says Cat-5e at the top but say Cat-6e (which doesn't exist) at the bottom. The text says "quality construction" but then says "copper clad aluminium" (aluminium is cheaper than copper). It says 26 AWG but I believe Cat-6 requires 22 to 24 AWG copper (24 AWG is thicker than 26 AWG). I wouldn't trust that company. – RedGrittyBrick Mar 24 '12 at 0:09

Be aware - CAT6e does not exist. They can make whatever cable they want and call it 6e, there's nothing you can do. Should definitely be twisted, also looks like aluminium conductors which should be copper. Probably not bad for short patches, but will be lossy and I wouldn't chance anything over 1m.

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