cat5 cabling from patch panel to wall port
Hi All,
how search the wires inside cat5 be attached to a patch panel and the opposite wall jack?
ie what colour goes where?
Thanks
Gareth
how search the wires inside cat5 be attached to a patch panel and the opposite wall jack?
ie what colour goes where?
Thanks
Gareth
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@mikebernhardt
That would be correct for T568A.
For T568B it would 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
As far as which one is preferred, it depends. From this link http://www.duxcw.com/faq/network/diff568ab.htm
"Q. What is the difference between the ANSI/TIA/EIA T568A and T568B color code wiring standards?
A. T568A and T568B are the two color codes used for wiring eight-position RJ45 modular plugs. Both are allowed under the ANSI/TIA/EIA wiring standards. The only difference between the two color codes is that the orange and green pairs are interchanged. T568A wiring pattern is recognized as the preferred wiring pattern for this standard because it provides backward compatibility to both one pair and two pair USOC wiring schemes. The T568B standard matches the older ATA&T 258A color code and is/was(?) the most widely used wiring scheme. It is also permitted by the ANSI/TIA/EIA standard, but it provides only a single pair backward compatibility to the USOC wiring scheme. The U.S. Government requires the use of the preferred T568A standard for wiring done under federal contracts."
I have't worked in many government buildings and find the the B standard is used more often.
Gary
That would be correct for T568A.
For T568B it would 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
As far as which one is preferred, it depends. From this link http://www.duxcw.com/faq/network/diff568ab.htm
"Q. What is the difference between the ANSI/TIA/EIA T568A and T568B color code wiring standards?
A. T568A and T568B are the two color codes used for wiring eight-position RJ45 modular plugs. Both are allowed under the ANSI/TIA/EIA wiring standards. The only difference between the two color codes is that the orange and green pairs are interchanged. T568A wiring pattern is recognized as the preferred wiring pattern for this standard because it provides backward compatibility to both one pair and two pair USOC wiring schemes. The T568B standard matches the older ATA&T 258A color code and is/was(?) the most widely used wiring scheme. It is also permitted by the ANSI/TIA/EIA standard, but it provides only a single pair backward compatibility to the USOC wiring scheme. The U.S. Government requires the use of the preferred T568A standard for wiring done under federal contracts."
I have't worked in many government buildings and find the the B standard is used more often.
Gary
ASKER
Thanks Gary, as usual always helps that little bit more with and explanation and a link
2 green/white
3 white/orange
4 blue/white
5 white/blue
6 orange/white
7 white/brown
8 brown/white