RJ-45 Ethernet Cable Wiring Diagram

Here's a reference chart for wiring Category 5 (Cat 5) ethernet cables for 10/100 BaseT. When buying raw cable, note that for Gigabit Ethernet, you may need Cat5(e). For further detail on Cat5, Cat5e and Cat6, read this wikipedia article.

For parts and tools, try these links... Get deals on prewired and bulk ethernet cable (search for "bulk"). Search for Cat 5 cable, Cat5(e) cable or RJ-45 connectors (8 pin). Don't forget the 8-pin RJ-45 crimping tool. Technically, the connectors are 8P8C modular, often incorrectly referred to as "RJ-45", "RJ 45", or RJ45". For more, try the Networking Department of Amazon.com.

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

Cross-over Cable Wiring

 

RJ-45 Pin # 1 end Color 2 end Color (T568A)
Pin 1 White with Orange White with Green
Pin 2 Orange Green
Pin 3 White with Green White with Orange
Pin 4 Blue Blue
Pin 5 White with Blue White with Blue
Pin 6 Green Orange
Pin 7 White with Brown White with Brown
Pin 8 Brown Brown

r-45 ethernet wiring diagram



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