Cabletron Systems 2H28-08R User Manual page 147

6. Secure the Fast Ethernet Interface Module with the screws saved in
steps 1 and 2.
Reinstall the rubber plug for the fiber port after the Fast
NOTE
Ethernet Interface Module is fully installed, if the port will not be
connected immediately to the network. This will keep the
connector free of dust and dirt.
7. Reinstall the cover.
2H28-08R SmartSwitch 2208 User's Guide
Installing Optional Fast Ethernet Interface Modules
C-9