Installation Guide  29 
Pin definitions 
There are eight wires on a standard UTP/STP cable and each 
wire is color-coded. The following shows the pin allocation and 
color of straight and crossover cable connection: 
Figure 3: Straight-through cable 
1 White/Orange  White/Orange 1 
2 Orange  Orange 2 
3 White-Green  White-Green 3 
4 Blue  Blue 4 
5 White/Blue  White/Blue 5 
6 Green  Green 6 
7 White/Brown  White/Brown 7 
8 Brown  Brown 8 
Figure 4: Cross-over cable 
1 White/Orange 
 
White/Orange  1 
2 Orange  Orange 2 
3 White-Green  White-Green 3 
4 Blue  Blue 4 
5 White/Blue  White/Blue 5 
6 Green  Green 6 
7 White/Brown  White/Brown 7 
8 Brown  Brown 8