Rockwell Automation 1783-Mxxx Stratix 8000 and 8300 Ethernet Managed Switches User Manual - Manual (Page 190)

190 Rockwell Automation Publication 1783-UM003I-EN-P - March 2014
Appendix D Cables and Connectors
The PoE ports on the PoE expansion modules integrate power and data signals
on the same wires. The ports use standard RJ45 connectors and Ethernet pinouts
with internal crossovers.
Figure 17 - 10/100 PoE Connector Pinouts and Power Sourcing Equipment (PSE) Voltage
Connect to 10BASE-T- and 100BASE-TX-compatible Devices
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible
devices, such as servers, workstations, and routers, you can use a two or four
twisted-pair, straight-through cable wired for 10BASE-T and 100BASE-TX.
To identify a crossover cable, compare the two modular ends of the cable. Hold
the cable ends side-by-side, with the tab at the back. The wire connected to the
pin on the outside of the left plug must be a different color from the wire
connected to the pin on the inside of the right plug.
The following figures show these schematics:
• Two twisted-pair, straight-through cable
• Four twisted-pair, straight-through cable
Figure 18 - Two Twisted-pair Straight-through Cable Schematic
2 3 1 4 5 6 7 8 Pin Label Alternative A (MDI)
1
2
3
4
5
6
7
8
RD+ Positive V PSE
RD- Positive V PSE
TD+ Negative V PSE
NC
NC
TD- Negative V PSE
NC
NC
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Router or Personal Computer
3 RD+
6 RD–
1 TD+
2 TD–