Fujitsu PRIMERGY RX2520 M1 Upgrade And Maintenance Manual page 215

Ê Carefully fold up and latch the locking bail.
Figure 111: Attaching the protective optical port plug
Ê If the SFP+ transceiver module is not immediately connected to an LC
connector, attach the protective optical port plug to the transceiver optical
bores.
RX2520 M1
Upgrade and Maintenance Manual
Expansion cards and backup units
215