Allied Telesis AT-8500 Series manual RJ-45 Twisted Pair Port Pinouts, Pin MDI Signal

AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide

RJ-45 Twisted Pair Port Pinouts

Figure 29 illustrates the pin layout for an RJ-45 connector and port.

Pin 1

Figure 29. RJ-45 Connector and Port Pin Layout

Table 12 lists the RJ-45 pin signals for the 10/100Base-TX ports on the

AT-8524M, AT-8550GB, and AT-8550SP switches.

Table 12. 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

Table 13 lists the RJ-45 port pin signals on the 10/100Base-TX ports on an

AT-8524POE switch.

Table 13. 10/100Base-T Port MDI/MDI-X Pin Signals with PoE

Pin	MDI Signal	MDI-X Signal
1	TX+ and Vport-11	RX+ and Vport-1
2	TX- and Vport-1	RX- and Vport-1
3	RX+ and Vport-22	TX+ and Vport-2

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