Allied Telesis AT-IFS802SP/POE - Manual (Page 79)

75 AT-IFS802SP/POE(W)-80 User Manual
Appendix A—RJ-45 Pin Assignment
The UTP/STP ports will automatically sense for Fast Ethernet (10Base-T/100Base-TX connections), •
or Gigabit Ethernet (10Base-T/100Base-TX/1000Base-T connections). Auto MDI/MDIX means
that the switch can connect to another switch or workstation without changing straight through
or crossover cabling. See the figures below for straight through and crossover cable schematic.
10 /100BASE-TX Pin outs •
With10/100BASE-TX cable, pins 1 and 2 are used for transmitting data, and pins 3 and 6 for
receiving data.
RJ-45 Pin Assignments •
Pin Number Assignment
1 Tx+
2 Tx-
3 Rx+
6 Rx-
[note] “+” and “-” signs represent the polarity of the wires that make up each wire pair.
Pin Number MDI-X Signal Name MDI Signal Name
1 Receive Data plus (RD+) Transmit Data plus (TD+)
2 Receive Data minus (RD-) Transmit Data minus (TD-)
3 Transmit Data plus (TD+) Receive Data plus (RD+)
6 Transmit Data minus (TD-) Receive Data minus (RD-)
The table below shows the 10/100BASE-TX MDI and MDI-X port pin outs.
RJ-45 Pin Assignments