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CHAPTER 5: TECHNICAL GLOSSARY
RJ-45 — The Registered Jack (RJ) physical interface is what connects the network cabling (CAT5e/6/7) to the local extender and remote
extender. You may use either the T568A scheme (Table 5-1, Figure 5-2) or the T568B scheme (Table 5-2, Figure 5-3) for cable termination
because the extender uses all four pairs of the cable. RJ-45 connectors are sometimes also referred to as 8P8C connectors.
RJ-45 Pin Positioning —
TABLE 5-1. T568A WIRING
Pin
Pair
Wire
Cable Color
1
3
1
White/Green
2
3
2
Green
3
2
1
White/Orange
4
1
2
Blue
5
1
1
White/Blue
6
2
2
Orange
7
4
1
White/Brown
8
4
2
Brown
FIGURE 5-2. T568A CONNECTOR PINOUT
TABLE 5-2. T568B WIRING
Pin
Pair
Wire
Cable Color
1
2
1
White/Orange
2
2
2
Orange
3
3
1
White/Green
4
1
2
Blue
5
1
1
White/Blue
6
3
2
Green
7
4
1
White/Brown
8
4
2
Brown
FIGURE 5-3. T568B CONNECTOR PINOUT
