Cisco Catalyst WS-X3001 Installation And Configuration Manual page 8

Installing Catalyst Switch Front Expansion Modules
Figure 5
Checking the Installation
When the connection is established, the LNK/FDX LED is on: green in half-duplex mode, or yellow
in full-duplex mode. If the LED is not on, there may be a cable problem. Verify that you are using
the correct type of cable, then check if the cable is bad by trying a different one.
If, after installation, there is poor system performance or the 100BaseTX module does not work at
all, remove the module and check for any damage or bent connector pins. You may need a bright
light to see inside the expansion module slot to check for bent pins. Also, verify that the module is
set firmly in place. If you cannot find an immediate cause for the problem, refer to the chapter that
discusses troubleshooting in the Catalyst Stack Installation and Configuration Guide.
8 Catalyst Matrix and Expansion Module Installation and Configuration Guide
RJ-45 Connector Insertion
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