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Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide
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Chapter4 Configuring the Gigabit Etherne t Ports Connecting To an SFP Module
Figure4-7 Connecting to an SFP Module Port
Step3 Insert the other cable end in a fiber-optic receptacle on a target device.
Step4 Observe the port LED.
•The LED turns green when the switch and the target device have an
established link.
•The LED turns amber while the STP discovers the network topology and
searches for loops. This process takes about 30 seconds, and then the port
LED turns green.
•If the LED is off, the target device might not be turned on, there migh t be a
cable problem, or there might be problem with the adapter installed in the
target device. See Chapter5, “Troubleshooting the Installation,” for solutions
to cabling problems.
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