3Com PS Hub 40 User Manual page 10

For Switzerland:
The supply plug must comply with SEV/ASE 1011.
It is essential that the mains socket outlet is installed near to the
unit and is accessible. You can only disconnect the unit by
removing the appliance coupler from the unit.
This unit operates under SELV conditions (Safety Extra Low Voltage)
according to IEC 950, the conditions of which are maintained only if
the equipment to which it is connected is also operational under
SELV.
France and Peru only:
This unit cannot be powered from IT (impedance à la terre)
supplies. If your supplies are of the IT type, this unit should 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).
U.K. only:
The PS Hub 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.
Twisted Pair RJ45 ports: These are shielded RJ45 data sockets. They
cannot be used as telephone sockets. Only connect RJ45 data
connectors to these sockets. Either shielded or unshielded data
cables with shielded or unshielded jacks can be connected to these
data sockets.
Sockets for Redundant Power System (RPS): Only connect a 3Com
Redundant Power System to this socket. For details, follow the
installation instructions in the manuals accompanying the Redundant
Power System.