76 Publication 1783-UM002C-EN-P - April 2009
Chapter 4
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 should 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
Two Twisted-pair Straight-through Cable Schematic
Four Twisted-pair Straight-through Cable Schematic
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible
devices, such as switches or repeaters, you can use a two or four twisted-pair,
crossover cable.
The following figures show these schematics:
• two twisted-pair, crossover cable schematics
• four twisted-pair, crossover cable schematics
Switch
3 TD+
TD–
1 RD+
RD–
Router or PC
3 RD+
6 RD–
1 TD+
2 TD–
5578
TPO+
TPO-
TP1+
TP1-
1 TP1+
Switch Router or PC
2 TP1-
3 TPO+
6 TPO-
TP2+
TP2-
TP3+
TP3-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
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