
Technical Specifications
84
Table 11 lists the RJ-45 port pin signals on the 10/100Base-TX ports on an
AT-8524POE switch.
Table 11
10/100Base-T Port MDI/MDI-X Pin Signals with PoE
Pin
MDI Signal
MDI-X Signal
1
TX+ and Vport-1
1
1. Vport-1 can be positive (+) or negative (-), depending
on the requirements of the powered device connected
to a port.
RX+ and Vport-1
2
TX- and Vport-1
RX- and Vport-1
3
RX+ and Vport-2
2
2. Vport-2 can be positive (+) or negative (-), depending
on the requirements of the powered device connected
to a port. If Vport-1 is positive, then Vport-2 will be
negative. If Vport-1 is negative, then Vport-2 will be
positive.
TX+ and Vport-2
4
Unused
Unused
5
Unused
Unused
6
RX- and Vport-2
TX- and Vport-2
7
Unused
Unused
8
Unused
Unused