Homemade Cable Problems

I built my first cable...or tried. And used another cable as reference, but I guess i was temporary colorblind, and just paired the colors together, IE

Orange white
Orange
Green White
Green
Blue White
Blue
Brown White
Brown

On both ends, and the cable doesnt work. Just because i didnt alternate the blue and green pairs doesnt mean it wont work...does it?

My brain tells me it shouldnt matter, but all the websites are making me doubt myself, and I wanna see if thats the problem before i cut the cable up Razz

I only have 4 ends left.

One would think that it shouldn't matter as long as it is the same on both ends. Apparently it does. Might have something to do with fact that they are twisted pairs.

It should be the same on both ends. If you are looking at the connector with the tab down from left to right it should be
1 white/orange
2 orange/white
3 white/green
4 blue/white
5 white/blue
6 green/white
7 white/brown
8 brown/white
Your green goes on the other side of the blue pairs. With data the only two pairs that you need is on pins 1,2 and 3,6. Pairs 4,5 are used for voice and the 7,8 are usually used for power over ethernet with voip. Here is a link that shows a good picture.http://www.jaysafe.co.uk/technical/rj45.asp

But my problem is that if they all go straight across, what does it matter?

I mean i guess ill try changing the colors, but thats all it is isnt it?

Its true, if every pair is like for like on both sides it will work. It really depends on if you care about the standards. Wish I could slap a little video on here on how to make them. I am a data/phone tech and I had an old school phone guy show me how to make them a few years back. After the first few they are really easy. Its the only way to go when you are using a lot of machines and changing your network all the time.

basicall the green pair is transmit and the orange pair is recieve. The only time you roll over and the pairs is when you are connecting pc to pc or when you are connecting data switch port to data switch port. Then the orange pair goes where the green pair is and vice versa. Hope this helps. Let me know if it works out.

Well yeah, I know how the x-over works. Im just saying that Both ends are exactly the same, the cables to straight thru, IE, 1 pin matches 1 pin and 8 matches 8. Afaik its exactly teh same thing, just with different colors. Ill try again regardless. Maybe im missing something. Im 99% certain i crimped them properly, it looks like theyre all connected and in there. We shall see how this goes

The only thing I can think of is the crimping tool. You need to be sure that the wires go all the way to the back of the connector so you can see the copper when you look at the end of the rj45. When you use the crimpers if they are not the ratcheting kind be sure to really crimp them tight. Those pins have to cut through the plastic and touch the copper underneath.

well. i dunno, tried again the right way and it works. Razz

And only half the pins aer touching on this one too. Bleh. I hate doing things the right way