Appendix A-Rj-45 Pin Assignment; Pin Assignments - B&B Electronics e-Linx EIRP610-2SFP-T User Manual

Appendix A—RJ-45 Pin Assignment
RJ-45 Pin Assignments
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
[NOTE] ―+‖ and ―-‖ signs represent the polarity of the wires that make up each wire pair.
The table below shows the 10/100BASE-TX MDI and MDI-X port pin outs.
Pin Number
1
2
3
6
113
Pin Number
1
2
3
6
MDI-X Signal Name
Receive Data plus (RD+)
Receive Data minus (RD-)
Transmit Data plus (TD+)
Transmit Data minus (TD-)
Manual Documentation Number EIRP610-2SFP-T – 0912m
RJ-45 Pin Assignment
Assignment
Tx+
Tx-
Rx+
Rx-
MDI Signal Name
Transmit Data plus (TD+)
Transmit Data minus (TD-)
Receive Data plus (RD+)
Receive Data minus (RD-)
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