Cisco Catalyst 3560, Hardware Installation Manual

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Appendix B Connector and Cable Specifications
Connector Specifications
B-2
Catalyst 3560 Switch Hardware Installation Guide
78-16057-01
When connecting 10/100 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 B-4 shows the two
twisted-pair straight-through cable schematics. Figure B-6 shows 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 B-5 shows the two
twisted-pair crossover cable schematics. Figure B-7 shows the four twisted-pair
crossover cable schematics.
Note
You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100 or 1000BASE-T SFP module port on the switch,
regardless of the type of device on the other end of the connection.
The Auto-MDIX feature is disabled by default. For configuration information for
this feature, refer to the switch software configuration guide or the switch
command reference
.
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.
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 .
This applies only to switches on which Auto-MDIX is disabled.