Installation Manual
H3C SecPath F100-A Firewall
Chapter 7 MIM Modules
7-6
Figure 7-9
Ethernet cable
II. Making an Ethernet cable
To make an Ethernet cable with RJ-45 connectors using a category-5 twisted-pair cable,
refer to Figure 7-10. A category-5 twisted-pair cable is composed of eight wires that are
identified and grouped by colors of the outer insulator. Usually a solid color wire and a
white/solid color wire are organized in pairs. But sometimes, wires are also paired by
color coded points.
Pair 1
Blue
White/blue
Pair 1
Orange
White/orange
Pair 1
Green
White/green
Pair 1
Brown
White/brown
e
Figure 7-10
Category-5 twisted-pair cabl
Table 7-3
Straight-through cable pinout
RJ-45
Signal
Category-5
twisted-pair
cable
Direction of
signal
RJ-45
1 Tx+
White
(orange)
→
1
2 Tx-
Orange
→
2
3 Rx+
White
(green)
←
3
4 –– Blue
–– 4
5 –– White
(blue)
–– 5
6 Rx-
Green
←
6
7 –– White
(brown)
–– 7
8 –– Brown
–– 8
