One end uses the t568a wiring standard and the other end uses the t568b wiring standard.
Utp cross cable configuration.
The jack plug is often referred to as a rj 45 but that is really a telephone company designation for the modular eight pin connector terminated with the universal service order codes usoc pinout used for telephones the male connector on the end of a patch cord is called a plug and the receptacle on the wall outlet.
Unlike straight through cable the rj45 crossover cable uses two different wiring standards.
An ethernet crossover cable also known as a crossed cable connects two ethernet network devices to each other.
The most common form of network cable is called unshielded twisted pair utp this cable format is used for the ethernet wiring standards which are managed by the institute of electrical and electronics engineers ieee these wiring standards are referred to by the code 802 3 the ethernet standards are open to anyone to read and they include specifications of cable.
Pin 2 on connector.
An ethernet crossover cable is a crossover cable for ethernet used to connect computing devices together directly.
Utp cables are terminated with standard connectors jacks and punchdowns.
These cables were created to support temporary host to host networking in situations where an intermediate device such as a network router is not present crossover cables look almost identical to ordinary straight through or patch ethernet cables but the internal wiring.
It is most often used to connect two devices of the same type e g.
Using the 568 b standard as an example below you will see that pin 1 on connector a goes to pin 3 on connector b.