Abbreviation for functional component.

Fault, Configuration, Accounting, Performance, and Security

Abbreviation for Federal Communications Commission. The U. S. Government board of five presidential appointees that has the authority to regulate all non-Federal Government interstate telecommunications (including radio and television broadcasting) as well as all international communications that originate or terminate in the United States.
Note: Similar authority for regulation of Federal Government telecommunications is vested in the National Telecommunications and… (Read More →)

The Federal Communications Commission program and associated directives intended to assure that all connected terminal equipment and protective circuitry will not harm the public switched telephone network or certain private line services.
Note 1: The FCC registration program requires the registering of terminal equipment and protective circuitry in accordance with Subpart C of part 68, Title 47 of the Code… (Read More →)

Abbreviation for frame check sequence. See cyclic redundancy check.

Frequency Division Duplex

Abbreviation for fiber distributed data interface.

See fiber distributed data interface.

See full width at half maximum.

Abbreviation for frequency-division multiplexing.