3Com SuperStack 3 Switch 3300 XM User Manual page 37

France and Peru only:
I
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.
U.K. only:
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The Switch 3300 XM, SM, TM or MM is covered by Oftel General
Approval, NS/G/12345/J/100003, for indirect connection to a public
telecommunications system. This can only be achieved using the
console port on the unit and an approved modem.
Sockets for Redundant Power System (RPS):
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Only connect an Advanced Redundant Power System (3C16071B)
with Type 2A Power Modules and Type 2 cables to the Redundant
Power System socket.
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They
cannot be used as telephone sockets. Only connect RJ-45 data
connectors 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 laser through a magnifying device while it is
powered on. Never look directly at the fiber port and fiber cable ends
when they are powered on.
Important Safety Information 37