The FCC is the abbreviation of U.S. Federal Communication Commission. View>>

This is a regulation formulated by Europe for the safety requirements of UPS. View>>

The EMI is the abbreviation of Electro-Magnetic Interference. View>>

DBA is the level used to test volume. View>>

They are signal connectors used to connect computer, UPS or other peripherals (also known as serial port). View>>

dB is the abbreviation for Decibel, which is to test the volume size of the unit. View>>

The CSA, short for the Canadian Standards Organization, is an organization of Canada government which is responsible for evaluating the security of electronic devices. View>>

This is a specification established by the European Common Market for the radio frequency interference emitted by electronic devices. View>>

The CENELEC is short for the European Committee for Electro-technical Standardization, in European Economic Community. View>>

The CBEMA is short for the Computer and Business Equipment Association. View>>