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Saturday, May 17, 2008

How to Crimp Ethernet Cable aka Making Your Own Network Cable

Alright kiddies,


For this post, Yours Truly am going to show how to crimp Ethernet Cable or popularly known as just Network Cable. There are basically two types of Network Cable, the straight cable and the cross cable.

The straight cable is normally used when you want to connect your computer/PC to a hub/switch/router and the cross cable is normally used when you want to connect your PC with another PC directly.

Since yours truly thinks that most of you would be using the straight cable, he would just focus on the making straight cable part.

The things that you will need to have:

RJ45 connectors
(obviously needed as connector)



RJ45 crimping tool
(This is a 4 in 1 Crimper- RJ45 crimp, Tel cable crimp, wire stripper, and cutter)



Ethernet cable/Network cable
(Doesn't take a genius to know that this is essential)



Now, lets go on with the steps on how to crimp/make your own Ethernet/network cable.

First, use a scissor or a knife to cut the end of the cable in order to get a straight cut. After that, you need to cut the outer rubber layer or also known as the jacket using the wire stripper and you will see four pairs of wires. Each pair has a solid and stripped color each of orange, green, brown, and blue. Arrange them according to the following picture.

The 4 pairs of wires


After that, separate the wires and you will have eight individual wires. Arrange nicely and use a knife or cutter or scissor to cut the wires neatly in a straight line horizontally.

obviously not straight and neat enough
(heck not even arranged properly)



However, before you cut, it is better to arrange the wire into the correct sequence. The color sequence to follow when the wire is facing you like the picture above starting from the left:

Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.



When you arrange em properly then get one RJ45 plug with the latch side facing down and guide the wires into the plug. Make sure each wire go in its own channel and push the wires as far as it would go.

Insert the wire inside to the end


Now, remember your crimping tool? With the wires pushed into the plug, fit the plug in the crimping slot. Stable the cable with one hand and use the other hand to squeeze the crimping tool hard. You will heard a click that indicates the plug is fasten onto the cable.


The first hole from the left is the crimping slot for RJ45


fit in place


press down with a bit force
(may the force be with you, my young padawan)



And you are done with one side of the cable. Flip the cable around and start on the other end which would be assembled exactly the same for straight cable.

However, if you HAVE to make a cross cable then you will have to follow the following color sequence.

End 1
(from left)

Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.



End 2
(from left)

Stripped Green,
Green,
Stripped Orange,
Stripped Brown,
Brown,
Orange,
Blue,
Stripped Blue,



After you have arrange the wires at both end according to the sequence and crimped em, you will have your cross cable.

Completed. Now you know how to make straight cable and cross cable.

And oh, you will want to test the cable first just in case the wire doesn't go in the correct channel.

There you have it. Network/Ethernet cables DIY

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Nux V said...

not easy to squeeze the crimping tool...it used up all my energy!

levian said...

it was fun the last time i tried. made just a few n it works like a charm. ;)

Cometh said...


nux_v: Oh, you tried? Well, one do need to use a bit force.

levian: Yeah, not bad.

pappy said...

dont need to struggle so hard its jus finger dexterity.

Anonymous said...

awesome, it worked 100%, thanks

Cometh said...

pappy: Well, that too. =p

Anon: Welcomed..=)

Anonymous said...

Umm, I'm pretty sure that's incorrect. I think you want the middle two pairs to be wired 1342 instead of 1234 so that tx and rx pairs are not crossed between different twists.

Anonymous said...

im pretty sure striped and stripped are two different words...

Anonymous said...

Please change stripped to striped. It hurts my brain!

Sincerely,

a different "Anonymous".

Cometh said...

Anon1: Really? Hmmm, but it works. The important thing it works right? =)

Anon2: Yes, it is. =p

Diff Anon: Thank you for the suggestion. It hurts my brain too. =p. However, I am just going to let it be. =p

Anonymous said...

Thanks author for Excellent information...wheather striped or stripped author Conveyed the message well..people who really looks something knowledgable please ignore such a small human mistakes.

Cometh said...

Anon: Amen to that... =)

Anonymous said...

This guy has a rough idea, but needs to fix some mistakes before he posts things onto the internet!

1) "Stripped" should be "STRIPED". Girls who turn up at parties and take their clothes off are STRIPPERS. LEARN THE DIFFERENCE, EINSTEIN.

2) More seriously- in the picture showing the side view of the RJ45 plug with wires going to the end, before it's been crimped- he fucks up. This is because the grey outer sheath of the CAT-5 cable does not go all the way inside the plug. I hate it when I come across shitty work like that in real life, and it's even more annoying to see someone teaching people to do it that way.

What our esteemed guide should do, is trim about half an inch of the inner wires, so by the time it has been inserted into the RJ45 plug, the grey sheath goes neatly all the way into the plug, ideally wedging into narrow cavity designed specifically for it. That way, once it's crimped- there will be no way the vulnerable inner wires can ever come into contact with the outside world- which was obviously the way it's supposed to work.

Cometh said...

Hmmm, there are surely lots of anon running around... =p

Anon: Thank you for the lesson EINSTEIN~~~

1)Please refer to a few replies above. The part where it says it hurts my brain.... =)

2) Thank you for pointing that out. That is the correct way people. Remember now kids, boys and girls. The grey thing should be inside for a professional job. After that done, give yourself a pat on the back. You big girl / big boy you. =). Or just go Google it for a better DIY LAN Cable... =)

P/S: Just for your information, that piece of cable been used for almost 3 years and counting. No problems so far...Ahem~~~~

Sylvern said...

its simple........... but the hardest part is to make the wires straight so the wires can go in the plug

Matt said...

Thanks.

Turns out I was doing it mostly right, but I wasn't getting the click, so your post gave me the insight that something was not right. Basically I was not untwisting the wires far enough, so they were blocking the crimping from going fully home. I think. Once I sorted that I got the positive click.

Of course the break in the cable didn't help, and the dodgy port on the switch I just discovered two days later really didn't help.

I now know the successful click that tells you it worked anyway, so going forward I expect to get it working first time - well 9 times out of 10 anyway. Shame about the 8 failed attempts though! ;)

My house is now fully cabled up, upstairs as well as down.

Anonymous said...

THANKS A LOT DEAR, U ARE A LIFE SAFER.

sheddy said...

yah,tried it and it worked.thanks

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