28 A PPENDIX A: S AFETY I NFORMATIONImportant SafetyInformationn Installation and removal of the unit must be carried out by qualifiedpersonnel only.n If installing the Switch unit in a stack with SuperStack II Hub units, theSwitch 610 unit must be installed below the narrower Hub units.n The unit should never be connected to an A.C. outlet (power supply)without an earth (ground) connection.n The unit must be connected to an earthed (grounded) outlet tocomply with European safety standards.n Power Cord Set:This must be approved for the country where it is used:n The appliance coupler (the connector to the unit and not the wallplug) must have a configuration for mating with an EN60320/IEC320appliance inlet.n The socket outlet must be near to the unit and easily accessible. Youcan only remove power from the unit by disconnecting the powercord from the outlet.n This unit operates under SELV (Safety Extra Low Voltage) conditionsaccording to IEC 950. The conditions are only maintained if theequipment to which it is connected also operates under SELVconditions.n Switzerland only:The supply plug must comply with SEV/ASE 1011.USA andCanadan The cord set must be UL-approved and CSA certified.n The minimum specification for the flexible cord is:No. 18 AWGType SV or SJ3-conductorn The cord set must have a rated current capacity of at least10A.n The attachment plug must be an earth-grounding typewith a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,250V) configuration.Denmark n The supply plug must comply with section 107-2-D1,standard DK2-1a or DK2-5a.Switzerland n The supply plug must comply with SEV/ASE 1011.