Cisco WS-C2950-24, Руководство по установке оборудования

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Appendix B Connectors and Cables
Connector Specifications
B-4
Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-02
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.
Connecting to 1000BASE-T-Compatible Devices
When connecting the ports to 1000BASE-T-compatible devices, such as servers,
workstations, and routers, you must use a four twisted-pair, Category 5,
straight-through cable wired for 10BASE-T, 100BASE-TX, and 1000BASE-T.
Figure B-10 shows the straight-through cable schematics.
When connecting the ports to other devices, such as switches or repeaters, you
must use a four twisted-pair, Category 5, crossover cable.
Figure B-11 shows the
crossover cable schematics.
Note Be sure to use a four twisted-pair, Category 5 cable when connecting to a
1000BASE-T-compatible device.
Note 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.
Figure B-3 RJ-45 Pinouts for 10/100/1000 Ports
1 2 3 4 5 6 7 8
Pin Label
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
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