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B-2
Cisco ME 2400 Ethernet Access Switch Hardware Installation Guide
OL-7678-01
Appendix B Connector and Cable Specifications
Connector Specifications
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, 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.
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.
SFP Module Ports
The Cisco ME switch uses SFP modules for fiber-optic and copper uplinks. See the Cisco ME switch
release notes for a list of supported SFP modules.
Figure B-2 Fiber-Optic SFP Module LC Connector
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Statement 1051
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