CAT5 cabling guide on how to wire a straight pair, crossover, and t1 crossover cable.
########################## # Straight Across # ########################## 1 2 3 4 5 6 7 8 WO O WG BL WBL G WB B 1=White/Orange 2=Orange 3=White/Green 4=Blue 5=White/Blue 6=Green 7=White/Brown 8=Brown ########################## # Crossover # ########################## 1 2 3 4 5 6 7 8 WG G WO BL WBL O WBN BN 1=White/Green 2=Green 3=White/Orange 4=Blue 5=White/Blue 6=Orange 7=White/Brown 8=Brown ########################## # T1 Crossover # ########################## 1 -> 4 2 -> 5 4 -> 1 5 -> 2 Going from a T568B, the other end would be Blue, sBlue, sGreen, sOrange, Orange, Green, sBrown, Brown (Prong tab down, that is showing pins 1 to 8) ########################## # Pinout Diagram # ########################## 1 White/Orange 3 T+ 2 Orange 6 T- 3 White/Green 1 R+ 6 Green 2 R-