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Keystone Jack to RJ45
beachrunner76 Dec-08-01 06:30 AM
I have a wiring question. Say I am using 568a as my wiring scheme. And say that I have one Keystone Jack (or patch panel) on one end of my cable and at the other end I have an RJ45 connector. My question is, what is the color combination at the RJ45 end? I mean, if my color scheme is white-green,green,white-orange,blue,white-blue,orange,white-brown,brown at the Keystone jack or patch panel end(which these colors coincide with 568a) and I don't use another jack or patch panel, then what colors do I use at the rj45 end? I don't use the same (white-green,green,white-orange,blue,white-blue,orange,white-brown,brown, going from left to right) again at the other end do I?

1. RE: Keystone Jack to RJ45
lbyard Dec-08-01 05:18 PM
In response to message 0
The jacks should be color coded for 568A and 568B (eg., http://duxcw.com/about/rj45jack.htm). If you wire the back of the jack according to the color code for 568A, then you wire the plug for 568A also (see bottom of http://duxcw.com/digest/Howto/network/cable/cable7.htm). And that is exactly the way my network is wired. I have jacks wired 568A in my Wife's and Son's offices and plugs at the other ends wired 568A, which run about 100 feet each and plug directly into a router/switch.

I do not like patch panels or punch-down blocks for small networks. Other than esthetics, they usually serve no useful purpose, cost money, and add more things that can break, be wired wrong, add insertion losses, and labor to a network. I often donít use jacks either for the same reasons (however, they work fine if properly installed). Of the six computers presently on my network, only two of them have jacks in the line. Larry

2. RE: Keystone Jack to RJ45
beachrunner76 Dec-08-01 10:03 PM
In response to message 1
Thanks so much. I wasn't sure how that would work out. I didn't know whether there was a cross connection after going through a jack. I thought you needed two jacks or use one jack and some cross connection wiring scheme. Thanks

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