3Com 3C17205 - SuperStack 3 Switch 4400 PWR Getting Started Manual page 65

Important Safety Information 65
WARNING: The socket outlet must be near to the unit and easily
accessible. You can only remove power from the unit by disconnecting
the power cord from the outlet.
WARNING: This unit operates under SELV (Safety Extra Low Voltage)
conditions according to IEC 60950. The conditions are only maintained if
the equipment to which it is connected also operates under SELV
conditions.
WARNING: France and Peru only:
†
This unit cannot be powered from IT supplies. If your supplies are of IT
type, this unit must be powered by 230V (2P+T) via an isolation
transformer ratio 1:1, with the secondary connection point labelled
Neutral, connected directly to earth (ground).
† Impédance à la terre.
WARNING: U.K. only:
If connecting a modem to the console port of the Switch 4400, only use a
modem which is suitable for connection to the telecommunications
system.
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot
be used as standard traditional telephone sockets, or to connect the unit to a
traditional PBX or public telephone network. Only connect RJ-45 data
connectors, network telephony systems, or network telephones to these
sockets.
Either shielded or unshielded data cables with shielded or unshielded
jacks can be connected to these data sockets.
WARNING: Fiber Optic ports – Optical Safety
Never look at the transmit LED through a magnifying device while it is
powered on. Never look directly at the fiber TX port and fiber cable ends
when they are powered on.