ethernet leads / RJ45

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steptoe

of course Im wrong, ask my wife™
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OK,

as has been explained in a previous thread, these arent actually proper RJ45 connectors,

but I assume you know what Im talking about,

does anyone know the proper pin numbers/colour combinations for a standard ethernet/RJ45 male plug.

in the past I have just made sure each end was terminated the same, but I suppose I should be doing them to some sort of standard, as I always connect up my females to the "B" designation.

Im in the middle of doing a lead for my printer PC at the mo so thought this might be a good time to do it right for a change,. :)

thanks.

 
good link oldtimer,

could I safely assume as that is a UK company that that would be the "B" configuration?

is there a difference between A and B patch leads.?

anyhow, good enough for me at the present time, better than the random connections I have been doing so far. :D

 
OK,as has been explained in a previous thread, these arent actually proper RJ45 connectors,

but I assume you know what Im talking about,

does anyone know the proper pin numbers/colour combinations for a standard ethernet/RJ45 male plug.

in the past I have just made sure each end was terminated the same, but I suppose I should be doing them to some sort of standard, as I always connect up my females to the "B" designation.

Im in the middle of doing a lead for my printer PC at the mo so thought this might be a good time to do it right for a change,. :)

thanks.
the colours i do it for a straight cable is the colours from the interweb :^O

orange/white, orange, green/white, blue, blue/white, green, brown/white, brown

 
good link oldtimer,could I safely assume as that is a UK company that that would be the "B" configuration?

is there a difference between A and B patch leads.?

anyhow, good enough for me at the present time, better than the random connections I have been doing so far. :D
Just convention to use B, but so long as it's the same both ends ;) it's up to you

 
I have always used B for straight troughs and A one end and B the other for null ethernet leads.

 
whats a null ethernet lead?have used null 232 leads, but never heard of a null ethernet one, whats that used for?
Same thing. Connecting 2 devices together without the need to a switch/sub or other device that contains a cross over.

 
could I safely assume as that is a UK company that that would be the "B" configuration?
No. Although I'd say that the T568B standard is probably the most widely used these days in the U.K., you'll find T568A in use as well. If you're adding fixed cabling to an existing installation, it's probably best to stick to whatever standard is already in use.

Remember that electrically, however, it makes no difference so long as you punch down to the same standard at each end of the cable. The only difference is in which two pins are designated pair 2 and which are pair 3, i.e. you are still connecting pin 1 to pin 1, pin 2 to pin 2 etc. whichever standard you are using; the only difference is that the O/W and G/W pairs are reversed.

is there a difference between A and B patch leads.?
Not electrically speaking, only in the colors. Leaving aside the issue of crossover cables already mentioned, a straight-through patch cord connects 1 to 1, 2 to 2 etc. The only difference is in the position of the O/W and G/W pairs, so it doesn't matter whether you're using the patch cord with a T568A or a T568B wired jack.

 
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