AT-8500 Series Fast Ethernet Switch Installation Guide
83
RJ-45 Twisted Pair Port Pinouts
Figure 28 illustrates the pin layout of an RJ-45 port.
Figure 28
RJ-45 Port Pin Layout
Table 10 lists the RJ-45 pin signals for the 10/100Base-TX ports on the
AT-8524M, AT-8550GB, and AT-8550SP switches.
Table 10
10/100Base-TX Port MDI/MDI-X Pin Signals
Pin
MDI Signal
MDI-X
Signal
1
TX+
RX+
2
TX-
RX-
3
RX+
TX+
4
Unused
Unused
5
Unused
Unused
6
RX-
TX-
7
Unused
Unused
8
Unused
Unused
Pin 1