Allied Telesis SwitchBlade x3112 - Manual (Page 138)

Chapter 6: Installing the Transceivers and Cabling the Ports
138
Note
If you are ready to attach the fiber optic cable to the transceiver,
continue with the next step. Otherwise, repeat steps 1 to 4 to install
the remaining SFP or CSFP transceivers in the line cards.
5. Remove the protective cover from the ports on the transceiver, as
shown in Figure 93.
Figure 93. Removing the Dust Cover from an SFP or a CSFP Transceiver
Note
The dust cover protects the fiber optic ports on the transceiver from
dust contamination. It should not be removed until you are ready to
connect the fiber optic cable.