Ethernet Cable Wiring


rj45

  • Crossover cable: Connects devices of the same type.
    • switch to switch
    • router to router
    • computer to computer
  • Straight through cable: Connects devices of different types.
    • modem to router
    • modem to computer
    • router to switch
    • router to computer
    • switch to computer

Straight through cable wiring
(TIA/EIA-568-B T568B)

RJ-45 Pin # Color (both sides same)
Pin 1 White with Orange
Pin 2 Orange
Pin 3 White with Green
Pin 4 Blue
Pin 5 White with Blue
Pin 6 Green
Pin 7 White with Brown
Pin 8 Brown

Crossover cable wiring

suitable for 1000Base connections

RJ-45 Pin # 1 end Color (T568B) 2 end Color
Pin 1 White with Orange White with Green
Pin 2 Orange Green
Pin 3 White with Green White with Orange
Pin 4 Blue White with Brown
Pin 5 White with Blue Brown
Pin 6 Green Orange
Pin 7 White with Brown Blue
Pin 8 Brown White with Blue


Valid XHTML5 Valid CSS!