3Com SUPERSTACK 3 3226, Getting Started Manual

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Important Safety Information 53
WARNING: This unit operates under SELV (Safety Extra Low Voltage)
conditions according to IEC60950. 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, 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 laser while it is powered-up. Never look
directly at the fiber ports and fiber cable ends when they are
powered-up.
WARNING: Use of controls or adjustments of performance or procedures
other than those specified herein may result in hazardous laser emissions.
DUA1750-0AAA01.book Page 53 Friday, December 5, 2003 10:24 AM