Cisco 3030 - Manual (Page 57)

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Cisco Catalyst Blade Switch 3030 Hardware Installation Guide
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A P P E N D I X
B
Connector and Cable Specifications
This appendix describes the switch module ports and the cables and adapters that you use to connect the
switch to other devices.
Connector Specifications
These sections describe the connectors used with the switch module.
10/100/1000 Ports
The 10/100/1000 Ethernet ports on the 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 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 switch, regardless of the type of device on
the other end of the connection.
The auto-MDIX feature is enabled by default on switches running Cisco IOS Release 12.2(18)SE or
later. For releases between Cisco IOS Release 12.1(14)EA1 and 12.2(18)SE, 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.
Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices
When connecting 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-4 shows the two twisted-pair, straight-through cable
schematics. Figure B-6 shows the four twisted-pair, straight-through cable schematics.