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Cisco Catalyst Blade Switch 3040 for FSC Hardware Installation Guide
OL-10694-01
APPENDIX
B
Connector and Cable Specifications
This appendix describes the blade switch ports and the cables and adapters that you use to connect the
blade switch to other devices.
Connector Specifications
These sections describe the connectors used with the blade switch.
10/100/1000 Ports
The 10/100/1000 Ethernet ports on the blade switch use standard RJ-45 connectors. Figure B-1 shows
the pinout.
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 blade 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 10/100/1000 or 1000BASE-T SFP module port on the blade switch, regardless
of the type of device on the other end of the connection.
For configuration information for this feature, refer to the blade switch software configuration guide or
the command reference.
Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices
When you connect the ports to 10BASE-T- and 100BASE-TX-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-3 shows the two twisted-pair, straight-through cable
schematics. Figure B-5 shows the four twisted-pair, straight-through cable schematics.
When you connect the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as switches or
repeaters, you can use a two or four twisted-pair, crossover cable. Figure B-4 shows the two twisted-pair,
crossover cable schematics. Figure B-6 shows the four twisted-pair, crossover cable schematics.
You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must
use Category 5 cabling when you connect to 100BASE-TX-compatible devices.