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HOLDING CIRCUIT [5 records]

Record 1 2009-04-02

English

Subject field(s)
  • Electrical Circuits and Circuit Breakers
  • Aircraft Systems
CONT

A non trip-free circuit breaker can be reset and/or held ON even if an overload or excessive heat condition is present. In other words, a nontrip-free circuit breaker can be bypassed by holding the operating mechanims ON.

OBS

Non trip-free circuit breakers are used for circuits that are essential for operations. Examples of these circuits are emergency lighting, required control circuits, and essential equipment circuits.

OBS

non-trip free circuit: term standardized by ISO.

French

Domaine(s)
  • Circuits électriques et coupe-circuits
  • Circuits des aéronefs
OBS

disjoncteur empêché : terme normalisé par ISO.

Spanish

Save record 1

Record 2 2004-09-02

English

Subject field(s)
  • Computer Memories
DEF

A RAM module in the form of a printed circuit board holding memory chips that allows dual channels to be used in a single interface.

OBS

DIMM modules are dual sided and contain 184 pins providing dual 32-bit memory paths forming a single 64-bit memory path. The predecessor to DIMMs was SIMMs (Single Inline Memory Modules). SIMMs are single-sided modules that contained 72 pins and provide only a single 32-bit data path.

French

Domaine(s)
  • Mémoires (Informatique)

Spanish

Save record 2

Record 3 2004-07-14

English

Subject field(s)
  • Telephone Switching
OBS

A selective, multi-unit, two-stage relay, configured with 10 or 20 horizontal paths. A two-stage operation is used to close any cross-point. First, a selecting magnet shifts all springs in a horizontal row, then a holding magnet shifts a vertical actuating card to close the selected contacts.(SMICO, 71 : 392) The crossbar switch, which is used for all major switching operations, forms the basis of the crossbar dial system. It is made up of the three main parts : 10 or 20 vertical circuit paths, 10 horizontal circuit paths, and equipment to close(connect) a circuit from any one to the other.(LEETEL 1, 76 : 79)

French

Domaine(s)
  • Commutation téléphonique
OBS

Multicommutateur dans lequel chaque ligne d'un faisceau de «n» lignes entrantes peut être reliée à l'une quelconque des lignes d'un faisceau de lignes sortantes. (MONTEL, 74: 31) Les commutateurs Crossbar ont constitué une étape très importante dans l'évolution des systèmes entre les autocommutateurs électromécaniques classiques qui les ont précédés et la commutation électronique [...].

Spanish

Campo(s) temático(s)
  • Conmutación telefónica
DEF

Dispositivo operado por relevador que establece una conexión entre dos líneas de conjuntos diferentes de líneas. Los dos conjuntos se encuentran físicamente dispuestos a lo largo de lados adyacentes de una matriz de contactos o puntos de conmutación.

Save record 3

Record 4 2000-07-20

English

Subject field(s)
  • Printed Circuits and Microelectronics

French

Domaine(s)
  • Circuits imprimés et micro-électronique
CONT

[Dans le multiplexage], il importe de maintenir la tension de sortie issue du convertisseur numérique-analogique pendant l'intervalle de temps séparant les traitements successifs d'une boucle donnée. Cette fonction est assurée par un circuit de maintien, ou circuit «bloqueur», dont la tension est appliquée à l'organe d'action.

Spanish

Save record 4

Record 5 1994-01-27

English

Subject field(s)
  • Corporate Security
  • Security Devices
DEF

a means of holding an alarm once sensed. For example, an alarm hold circuit applied to a magnetic contact on a door will continue to indicate an alarm after the door has been closed by the intruder.

French

Domaine(s)
  • Sécurité générale de l'entreprise
  • Dispositifs de sécurité

Spanish

Save record 5

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