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Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide
78-6286-05
Chapter 4 Configuring the Gigabit Ethernet Ports
Connecting To an SFP Module
Figure 4-7 Connecting to an SFP Module Port
Step 3 Insert the other cable end in a fiber-optic receptacle on a target device.
Step 4 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 might be a
cable problem, or there might be problem with the adapter installed in the
target device. See Chapter 5, “Troubleshooting the Installation,” for solutions
to cabling problems.
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