Hey there,

Can anyone explain what the difference is here. I know there are coloured cables under the outer sheathing, but if these are all copper, so what difference does the colour make if they are all copper UNDERNEATH. I know this might sound like a weird question but I just see them as copper going in to the jack.

Thanks for any clarification on this.

B2 Hello there are two standards that person must follow they are TIA/EIA 568A and TIA/EIA 568B. A straight through cable connects PC to router and is configured with the same STANDARD at both ends i.e. TIA/EIA 568A on both ends. A crossover cable is a cable that connects to PC's directly without the need for a router. This cable has got TIA/EIA 568A on one end and TIA/EIA 568B on the other.

TIA/EIA 568A wiring:
Pin 1: White and green
Pin 2: Green
Pin 3: White and orange
Pin 4: Blue
Pin 5: White and blue
Pin 6: Orange
Pin 7: White and brown
Pin 8: Brown

TIA/EIA 568A wiring:
Pin 1: White and orange
Pin 2: Orange
Pin 3: White and green
Pin 4: Blue
Pin 5: White and blue
Pin 6: Green
Pin 7: White and brown
Pin 8: Brown
God evening Base2 and welcome to CH

Very nice description that "luck of the irish" wrote but made a mistake / typo

568A & 568B are the same and just the wire coatings is different on them and not the ends from being crossed that's it in order and the same on both ends. They are both standards and one is getting phased out. This is for straight through cat cables that are cat 5 and cat 5e. It doesn't matter which one is used really so long as both ends are wired the same way / standard.

The wiring configuration of both of them will depend on who installed the wiring or made the cables. This may help you as well http://en.wikipedia.org/wiki/TIA/EIA-568 for straight through cables.

This one will help you with cross over cables http://en.wikipedia.org/wiki/Ethernet_crossover_cable the only difference on a cross over cable is 2 pairs are switched and the rest stay as the diagram STATES. What the difference is between them is "pairs 2 and 3 (orange and green) are swapped" that's it

Hope this you, MIKE

hartbeatmr

thanks I see the typo nowThanks for the posts, and thank you for the links Mike. The difference is a LOT clearer now. Thanks for taking the time to read and reply !!

B2