Sfp Module Ports - Cisco ME 3400 Hardware Installation Manual

Connector Specifications
You can use the mdix auto interface configuration command in the CLI to enable the automatic
Note
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
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
Warning
beams or view directly with optical instruments. Statement 1051
Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide
B-2
Fiber-Optic SFP Module LC Connector
Appendix B Connector and Cable Specifications
OL-7677-01