Cisco IE 3000 Series Hardware Installation Manual page 65

Chapter 2 Switch Installation
Connecting Destination Ports
Figure 2-33 Installing an SFP Module into an SFP Module Slot
Remove the dust plugs from the SFP module optical ports, store them for later use.
Step 5
Do not remove the dust plugs from the SFP module port or the rubber caps from the fiber-optic cable
Caution
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Cisco IE 3000 Switch Hardware Installation Guide
2-39
OL-13017-01