8 H-Class2.1.1 Additional RequirementsOther items can also be needed for operation:An interface cable (see Section 2.2.2);Applicable media (see Section 7.3); and,Applicable software (consult the Accessories CD-ROM, your dealer, or Datamax-O’Neil).2.2 InstallationThe printer features an auto-ranging power supply and several different interface types foreasy installation.Ensure that the Power Switch is OFF when making printer connections.2.2.1 Connecting the Power CordWith printer placed upon a firm and level surface, connect the Power Cord as follows:A. Ensure that the Power Switch is turned OFF.B. Connect the Power Cord to the AC receptacle on the printer, and then to a properlyrated and grounded AC outlet.