Emerson Centellis 2000 Installation And Use Manual page 28

Centellis 2000 User Card-10GE Hardware
SFP/SFP+ Module Damage
The optical port plug protects the sensitive optical fibres against dirt and damage. Dirt and
damage can render the SFP/SFP+ module inoperable.
Only remove the optical plug when you are ready to connect a cable to the SFP/SFP+
module. When no cable is connected, cover the port with an optical port plug.
3. Connect the network cable to the SFP/SFP+ module.
Centellis 2000 User Card-10GE Installation and Use (6806800H33B)
28