Those specific connections are exactly what "RJ45" describe. Michael Blake - K9JRI
> On May 1, 2016, at 21:37, Jim Brown <[email protected]> wrote: > >> On Sun,5/1/2016 6:19 PM, Michael Blake wrote: >> The plug and jack are described by the number of available contact positions >> and the number of contacts installed in those positions. > > The proper wiring of Ethernet cables REQUIRES that color code be strictly > observed. An Ethernet cable is four twisted pairs, each having a different > twist ratio. There's a Brown/White pair, an Orange/White pair, a Green/White > pair, and a Blue/White pair. > > Those four pairs each carries a separate signal, and it is critical that > crosstalk between pairs is minimized. Crosstalk rejection is provided two > ways -- primarily by twisting, AND improved by each pair having a different > twist ratio. > > In other words, simply having DC continuity between pins at each end of the > cable is not enough -- they must be correctly paired, and those pairs most > tightly twisted (for better noise rejection) are wired to their assigned pins. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
