full duplex



  • noun data transmission down a channel in two directions simultaneously.
  • abbreviationfd
  • abbreviationfdx


  • (written as full-duplex)
    Two-way communication which occurs simultaneously in both directions. This contrasts with half-duplex, in which communication can only occur in one direction at a time. Its abbreviation is FDX. Also called full-duplex communication, duplex (2), or two-way communication (2).
  • (written as full-duplex)
    circuit A communications circuit enabled for full-duplex. Also called duplex circuit (1).

Media Studies

  • noun a communications network connection that allows signals to be sent in opposite directions at the same time