6 I-Class1.1 Option InstallationThe following table lists the available options and the recommendedqualification level of the installer. For detailed information concerning a specificoption, contact your dealer or Datamax Technical Support.Experience Level for Options InstallationOption Recommended InstallerCutters and trays: Light / Standard Duty OperatorDMXNet DMX Certified TechnicianExternal Keyboard OperatorExternal Media Rewinder OperatorFont Expansion Card DMX Certified TechnicianILPC DMX Certified TechnicianInternal Rewinder OperatorI/O Expansion Card DMX Certified TechnicianLinear Scanner Factory onlyPeel and Present Mechanism OperatorPresent Sensor OperatorRS-422 Serial Interface DMX Certified TechnicianThermal Transfer Assembly OperatorTwinax/Coax Interface DMX Certified TechnicianUSB Port DMX Certified Technician