Allen-Bradley Stratix 8300 - Page 159

Rockwell Automation Publication 1783-UM003G-EN-P - December 2012 159
Cables and Connectors Appendix C
Use a straight-through cable to connect two ports only when one port is
designated with an X. Use a crossover cable to connect two ports when both ports
are designated with an X or when both ports do not have an X.
You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-
compatible devices. You must use Category 5 cabling when connecting to
100BASE-TX-compatible devices
.
Figure 11 - Two Twisted-pair Crossover Cable Schematic
Figure 12 - Four Twisted-pair Crossover Cable Schematic
IMPORTANT
Use a four twisted-pair, Category 5 cable when connecting to a
1000BASE-T-compatible device
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
H5579
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
9755H
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
9755H
1 TPO+
2 TPO-
3 TP1+
6 TP1-
1 TP0+
Switch Switch
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
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