Linksys SFE2000 Quick Installation Manual page 21

Power Safety Warnings
When using the SFE2000 Fast Ethernet Switch, observe the following power safety warnings:
Warning TN Power
The device is designed to work with TN power systems.
Warning Ground Conductor Warning
Never defeat the ground conductor or operate the equipment in the absence of a suitably
installed ground conductor. Contact the appropriate electrical inspection authority or an
electrician if you are uncertain that suitable grounding is available.