May 23, 2018

Difference between Direct cable and Crossover cable

Direct cable and Crossover cable
< Cross over cable / T586A:T568B >


Direct cable and Crossover cable 1
< Direct cable / T586A:T586A >


❑ Direct(Straight) cable : The cable that enables to communiate of MDI↔MDI-X.
* Cable sequence : T586A:T586A or T568B:T568B

❑ Crossover cable : The cable that enables to communiate of MDI↔MDI or MDI-X↔MDI-X.
* Cable sequence : T586A:T568B

❑ MDI(Medium Depenent Interface) : The interface(port) of smart devices such as Router, PC, Server.

❑ MDI-X(Medium Depenent Interface Crossover) : The interface(port) of dumb devices such as Switch, Dummy hub.

❑ Cable sequence
❍ T568B
1) Orange-white
2) Orange
3) Green-white
4) Blue
5) Blue-white
6) Green
7) Brown-white
8) Brown
❍ T586A
1) Green-white
2) Green
3) Orange-white
4) Blue
5) Blue-white
6) Orange
7) Brown-white
8) Brown


※ Auto MDI-X : The technique that chooses MDI or MDI-X configuration to enable communication.