half-duplex

[haf-doo-pleks, -dyoo-, hahf-] /ˈhæfˈdu plɛks, -ˈdyu-, ˈhɑf-/
adjective
1.
of or pertaining to the transmission of information in opposite directions but not simultaneously.
Compare full-duplex.
Examples from the web for half-duplex
  • Modems used in the systems operate in a half-duplex mode.
  • Data transmission can be half-duplex, simulated half-duplex, and full-duplex.
  • The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.
  • The communication channel is half-duplex with no channel turnaround.
half-duplex in Technology

communications
(hdx, from telegraphy) 1. A type of communication channel using a single circuit which can carry data in either direction but not both directions at once.
Compare: simplex, full-duplex.
2. An obsolete term for local echo.
(2001-07-21)