Appendix A: Technical Specifications
74
RJ-45 Twisted Pair Port Pinouts
Figure 41 illustrates the pin layout of the RJ-45 connectors and ports.
Figure 41. RJ-45 Socket Pin Layout (Front View)
Table 14 lists the pin signals for 10 and 100 Mbps.
The pin signals for a port operating at 1000 Mbps are shown in Table 15.
Table 14. Pin Signals for 10 and 100 Mbps
Pin MDI Signal MDI-X Signal
1TX+ RX+
2TX- RX-
3RX+ TX+
4 Not used Not used
5 Not used Not used
6RX- TX-
7 Not used Not used
8 Not used Not used
Table 15. Pin Signals for 1000 Mbps
Pinout Pair
1 Pair 1 +
2 Pair 1 -
3 Pair 2 +
4 Pair 3 +
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