Appendix A Reference
Cable and Adapter Specifications
Cable and Adapter Specifications
These sections describe the cables and adapters used with the switch.
•Two
•Four
•Crossover Cable, page
Two Twisted-Pair Cable Pinouts
Figure A-8 and Figure A-9 show the schematics of two twisted-pair cables for connecting to 10BASE-T- and 100BASE-TX-compatible devices.
Figure A-8
Switch
3TD+
6 TD–
1RD+
2 RD–
Figure A-9
Switch
3TD+ 6 TD–
1RD+ 
2 RD– 
Two
Router or PC
3 RD+ 
6 RD–
1 TD+ | H5578 | |
2 TD– | ||
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Two Twisted-Pair Crossover Cable Schematic
Switch
3TD+
6TD–
1 RD+ | H5579 | |
2 RD– | ||
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| User Guide for the Catalyst Express 520 Switches |
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