TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

FOUR-WIRE CIRCUIT [1 record]

Record 1 2010-04-15

English

Subject field(s)
  • Telephone Facilities
  • Telecommunications Transmission
  • Electronic Circuits Technology
DEF

A circuit using two one-way transmission paths, one for each direction of transmission.

OBS

It may be two pairs (four wires) of metallic conductors or two channels as in a carrier system. Four-wire circuits are used in almost all toll and long distance trunks that use carrier or multiplex facilities, and are increasingly used in interoffice, tandem and short-haul toll operations.

OBS

Four-wire circuits are used in almost all toll and long distance trunks that use carrier or multiplex facilities, and are increasingly used in interoffice, tandem and short-haul toll operations.

OBS

four-wire circuit: term standardized by the International Electrotechnical Commission (IEC).

Key term(s)
  • 4-wire circuit
  • 4 wire circuit
  • four wire circuit
  • four wire type circuit
  • four wire channel

French

Domaine(s)
  • Installations (Téléphonie)
  • Transmission (Télécommunications)
  • Technologie des circuits électroniques
DEF

Circuit qui utilise deux fils pour transmettre du demandeur vers le demandé et deux autres fils pour transmettre du demandé vers un demandeur.

OBS

Les circuits à quatre fils qui assurent des liaisons à grande distance sont pratiquement exclusivement des voies des systèmes à multiplexage de fréquence.

OBS

circuit à quatre fils : terme normalisé par la Commission électrotechnique internationale (CEI).

Key term(s)
  • circuit à 4 fils

Spanish

Campo(s) temático(s)
  • Instalaciones telefónicas
  • Transmisión (Telecomunicaciones)
  • Tecnología de los circuitos electrónicos
DEF

Circuito que utiliza dos pares de conductores, un par para el canal de ida y el otro para el canal de vuelta.

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