Ethernet Cable Pinouts

There are two types of LAN cables – Cross-over and straight through. Most modern communications equipment can auto sense which type you are using, but some still need the correct cable. The following are the pinouts for the RJ45 connectors so you can check which one you have or make up your own. It doesn’t matter if you are making up some Cat5e, Cat6 or even Cat7 cables the pinout is always the same for Ethernet cables

Straight Through Cable

T-568A – most commonly used in the US and Australia

T-568B – UK and Europe

RJ45 Pinout

Pin 1 >> white/green (TX+)

Pin 2 >> green (TX-)

Pin 3 >> white/orange (RX+)

Pin 4 >>blue

Pin 5 >> white/blue

Pin 6 >> orange (RX-)

Pin 7 >> white/brown

Pin 8  >> brown

Straight LAN Cable

Straight LAN Cable Pin Out

Remember that Pin 1 is on the left hand side with the clip at the rear.

Cross-Over Ethernet Cable

cross-over RJ45 cable

Pin 1 << white/green >> Pin 3

Pin 2 << green >> Pin 6

Pin 3 << white/orange >> Pin 1

Pin 4 << blue >> Pin 1

Pin 5 << white/blue >> Pin 5

Pin 6 << orange >> Pin 2

Pin 7 << white/brown >> Pin 7

Pin 8 << brown >> Pin 8

cross-over LAN Cable
Crossover LAN Cable Pin Out
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