Appendix A Reference

Connector Specifications

Figure A-4shows the pinout for a 10/100/1000 port.

Figure A-4 10/100/1000 Port Pinouts

Pin Label

1TP0+

2TP0-

3TP1+

4TP2+

5TP2-

6TP1-

7TP3+

8TP3-

1 2 3 4 5 6 7 8

60915

Caution PoE faults are caused when noncompliant cabling or powered devices are connected to a PoE port. Only standard-compliant cabling can be used to connect Cisco pre-standard IP Phones or wireless access points or

IEEE 802.3af-compliant devices to PoE ports. A cable or device that causes a PoE fault must be removed from the network.

When connecting 10/100 and 10/100/1000 ports to 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. Figure A-8shows the two twisted-pair straight-through cable schematics. Figure A-10shows the four twisted-pair straight-through cable schematics.

When connecting the ports to other devices, such as switches or repeaters, you can use a two or four twisted-pair crossover cable. Figure A-9shows the two twisted-pair crossover cable schematics. Figure A-11shows the four twisted-pair crossover cable schematics.

 

User Guide for the Catalyst Express 520 Switches

A-6

OL-12761-02

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Image 92
Cisco Systems 520 manual Figure A-4shows the pinout for a 10/100/1000 port