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HALF-DUPLEX [12 records]

Record 1 2025-01-24

English

Subject field(s)
  • Data Transmission
  • Internet and Telematics
CONT

Description of Modem Signals.... Request to Send(RTS).... this signal is generally used to indicate that the computer is prepared to receive data from the modem(it can also be used in half-duplex communication to request permission to transmit, hence the name).

CONT

What is request to send (RTS)? RTS is a pivotal concept in computer networking. It functions as a digital protocol ensuring efficient data transmission, particularly in wireless communication. When a device wants to send data, it initiates an RTS signal, essentially requesting permission to transmit. This preemptive communication helps prevent collisions in shared network spaces, promoting a smoother flow of data. While RTS adds a layer of coordination, it’s especially crucial in crowded network environments, where simultaneous transmissions are likely.

OBS

Ready to Receive; Ready to Send: These designations do not appear in either the IEEE 802.11 or the RS-232 standards.

French

Domaine(s)
  • Transmission de données
  • Internet et télématique

Spanish

Campo(s) temático(s)
  • Transmisión de datos
  • Internet y telemática
Save record 1

Record 2 2021-07-06

English

Subject field(s)
  • Military Communications
OBS

JTIDS: Joint Tactical Information Data System.

DEF

A secure, line of sight, half-duplex, netted link supporting both voice and data communications for JTIDS users.

OBS

IJMS provides the means to exchange digital information between aircraft and land-based units. IJMS is jam resistant and will be used as the interim link until TADIL-J [tactical digital information link J] is fully fielded.

OBS

interim JTIDS message specification; IJMS: designations removed from NATOTerm in 2021.

Key term(s)
  • interim joint tactical information data system message specification

French

Domaine(s)
  • Transmissions militaires
OBS

JTIDS : système interarmées de diffusion des informations tactiques.

OBS

spécification provisoire de message JTIDS; IJMS : désignations retirées de TermOTAN en 2021.

Key term(s)
  • spécification provisoire de message du système interarmées de diffusion des informations tactiques

Spanish

Save record 2

Record 3 - external organization data 2012-09-11

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
01.02.08 (19762)
ISO/IEC standard entry number
DEF

data transmission in either direction, one direction at a time in which the information is communicated after the transceiver has stopped transmitting the activation field

OBS

cf. full-duplex transmission (01.02.06)

OBS

Adapted from ISO/IEC 2382-9:1995, 09.03.06.

OBS

half-duplex transmission : term and definition standardized by ISO/IEC [ISO/IEC 19762-1 : 2008].

French

Spanish

Save record 3

Record 4 2009-11-18

English

Subject field(s)
  • Air Navigation Aids
  • Telecommunications
DEF

A method in which telecommunication between two stations takes place in one direction at a time.

OBS

In application to the aeronautical mobile service, this method may be subdivided as follows: a) single channel simplex; b) double channel simplex; c) offset frequency simplex.

OBS

simplex: term and definition officially approved by the International Civil Aviation Organization (ICAO).

OBS

In civil aviation, very high frequency(VHF) amplitude modulated(AM) radio is typically used for radio voice communication between personnel in the cockpit and personnel in the air traffic control tower. VHF AM radio utilizes "simplex"(also called "half duplex") mode : i. e. a particular channel is used for both sides of a two-way conversation, and only one party can talk at a time(also known as "two way radio").

OBS

Two definitions have arisen over time : a common definition, which is used as an ANSI [American National Standards Institute] standard and elsewhere, and an ITU-T [International Telecommunication Union-Telecommunication Standardization Sector] definition. The ITU definition of simplex is termed "half duplex" in other contexts.

OBS

According to ANSI standard, simplex also refers to communication that occurs in one direction only, from one device to the next. In the simplex mode, one of the devices can transmit but cannot receive, or it receives but does not transmit. The half-duplex mode indicates a transmission in either direction, but it can take place in only one direction at a time.

Key term(s)
  • half-duplex

French

Domaine(s)
  • Aides à la navigation aérienne
  • Télécommunications
DEF

Méthode suivant laquelle les communications entre deux stations ont lieu dans un sens à la fois.

OBS

Appliquée au service mobile aéronautique, cette méthode peut se subdiviser comme suit : a) simplex sur voie unique; b) simplex sur deux voies; c) simplex sur fréquences décalées.

OBS

simplex : terme et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Ayuda para la navegación aérea
  • Telecomunicaciones
DEF

Método en el cual las telecomunicaciones entre dos estaciones se efectúan cada vez en un solo sentido.

OBS

En su aplicación al servicio móvil aeronáutico, este método puede subdividirse en la forma siguiente: a) simplex de canal único; b) simplex de doble canal; c) simplex de frecuencia aproximada.

OBS

símplex: término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 4

Record 5 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
01.02.07 (19762)
ISO/IEC standard entry number
DEF

data transmission in either direction, one direction at a time [ISO/IEC 2382-9:1995, 09.03.07]

OBS

half-duplex transmission : term and definition standardized by ISO/IEC [ISO/IEC 19762-1 : 2008].

French

Spanish

Save record 5

Record 6 - external organization data 2006-02-24

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
09.03.06 (2382)
ISO/IEC standard entry number
DEF

data transmission in either direction, one direction at a time

OBS

half-duplex transmission : term and definition standardized by ISO/IEC [ISO/IEC 2382-9 : 1995].

French

Domaine(s)
  • Tiroir - ISO/CEI JTC 1 Vocabulaire des technologies de l'information
Entrée(s) universelle(s)
09.03.06 (2382)
ISO/IEC standard entry number
DEF

transmission de données dans un sens ou dans l'autre, mais non simultanément

OBS

transmission semi-duplex; transmission à l'alternat : termes et définition normalisés par l'ISO/CEI [ISO/IEC 2382-9:1995].

Spanish

Save record 6

Record 7 2005-05-12

English

Subject field(s)
  • Internet and Telematics
  • Telecommunications Transmission
DEF

A system capable of working in either direction but not in both simultaneously.

OBS

For example, a walkie-talkie is a half-duplex device because only one party can talk at a time. In contrast, a telephone is a full-duplex device because both parties can talk simultaneously.

OBS

half duplex; semi-duplex : terms and definition officially approved by the Government EDP Standards Committee(GESC).

French

Domaine(s)
  • Internet et télématique
  • Transmission (Télécommunications)
DEF

Système pouvant fonctionner dans les deux sens mais non simultanément.

OBS

semi-duplex : terme et définition uniformisés par le Comité des normes gouvernementales en informatique (CNGI).

Key term(s)
  • semi duplex

Spanish

Campo(s) temático(s)
  • Internet y telemática
  • Transmisión (Telecomunicaciones)
DEF

Protocolo de comunicaciones asíncronas, en el que el canal de comunicaciones puede manipular solamente una señal a la vez. Las dos estaciones alternan sus transmisiones.

Key term(s)
  • semi dúplex
  • semi-dúplex
Save record 7

Record 8 2004-09-09

English

Subject field(s)
  • Internet and Telematics
DEF

A data transmission in either direction, one direction at a time.

OBS

half-duplex transmission : term standardized by ISO and CSA.

French

Domaine(s)
  • Internet et télématique
DEF

Transmission de données dans un sens ou dans l'autre, mais non simultanément.

OBS

transmission semi-duplex; transmission à l'alternat : termes normalisés par l'ISO et la CSA.

Spanish

Campo(s) temático(s)
  • Internet y telemática
DEF

Transmisión de datos en ambas direcciones, pero solamente en una dirección cada vez.

Save record 8

Record 9 2004-04-13

English

Subject field(s)
  • Computer Hardware
  • Telecommunications Facilities
OBS

Direct-connect auto-dial/auto-answer 300 bps modem features full/half-duplex and originate/answer modes.

Key term(s)
  • auto-dialling modem

French

Domaine(s)
  • Matériel informatique
  • Installations de télécommunications
OBS

Modem 300 bauds à sélection/réponse automatique à connexion directe avec modes duplex intégral/semi-duplex et émission/réponse.

Spanish

Save record 9

Record 10 2003-09-27

English

Subject field(s)
  • Operating Systems (Software)
  • Telecommunications Transmission
DEF

A discipline conforming to subsets of the ADCCP [Advanced Data Communication Control Procedures] of ANSI [American National Standards Institute] and the HDLC [High-level Data Link Control] of the International Organization for Standardization.

OBS

SDLC manages synchronous, code-transparent, bit-serial communication which can be duplex or half-duplex; switched or non-switched; point-to-point, multipoint, or loop.

OBS

An IBM protocol.

French

Domaine(s)
  • Systèmes d'exploitation (Logiciels)
  • Transmission (Télécommunications)
DEF

Protocole orienté bit (pas de notion de caractère) [qui] travaille en mode synchrone bidirectionnel avec contrôle de redondance cyclique.

OBS

Protocole développé par IBM dans le cadre de son architecture SNA [architecture unifiée de réseau].

Spanish

Campo(s) temático(s)
  • Sistemas operativos (Soporte lógico)
  • Transmisión (Telecomunicaciones)
DEF

Protocolo de control de enlace de datos, desarrollado y usado por IBM y basado en el uso de encuadres para delimitar los mensajes.

Save record 10

Record 11 1985-04-29

English

Subject field(s)
  • Internet and Telematics
CONT

two-way alternate operation : a half-duplex mode of operation for a data link.

French

Domaine(s)
  • Internet et télématique
DEF

Qui transmet l'information tantôt dans un sens, tantôt dans l'autre.

Spanish

Save record 11

Record 12 1983-11-29

English

Subject field(s)
  • Computer Hardware
OBS

Direct-connect auto-dial/auto-answer 300 bps modem features full/half-duplex and originate/answer modes.

French

Domaine(s)
  • Matériel informatique
OBS

Modem 300 bauds à sélection/réponse automatique à connexion directe avec modes duplex intégral/semi-duplex et émission/réponse.

Spanish

Save record 12

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