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Catalyst 3750 Switch Hardware Installation Guide
OL-6336-10
Chapter 2 Switch Installation
Connecting to an SFP Module
Caution Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Before you connect the switch to the SFP module, be sure that you understand the port and cabling
stipulations in “Installation Guidelines” section on page 2-6 and in the “SFP Module Slots” section on
page 1-12.
Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Step 2 Insert one end of the fiber-optic cable into the SFP module port (see Figure 2-56).
Step 3 Insert the other cable end into a fiber-optic receptacle on a target device.
Step 4 Observe the port status 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 3, “Troubleshooting,”
for solutions to cabling problems.
Figure 2-56 Connecting to an SFP Module Port
Step 5
If necessary, reconfigure and restart the switch or target device.
Caution For detailed instructions on removing the SFP modules, see your SFP documentation.
1 LC connector
Catalyst 3750
SERIES
13X
14X
23X
24X
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