- voice frequency circuit
- тональная цепь
Англо-русский железнодорожный словарь. 2013.
voice frequency circuit
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Voice procedure — includes various techniques used to clarify, simplify and standardize spoken communications over two way radios, in use by the military, in civil aviation, police and fire dispatching systems, citizens band radio (CB), etc. Voice procedure… … Wikipedia
Circuit Switched Data — (CSD) is the original form of data transmission developed for the time division multiple access (TDMA) based mobile phone systems like Global System for Mobile Communications (GSM). CSD uses a single radio time slot to deliver 9.6 kbit/s data… … Wikipedia
Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… … Wikipedia
Single-frequency signaling — (SF) is line signaling (in telephony) in which dial pulses or supervisory signals are conveyed by a single voice frequency tone in each direction. SF and similar systems were used in 20th century carrier systems.An SF signaling unit converts DC… … Wikipedia
integrated circuit — Electronics. a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbr.: IC Also called microcircuit. [1955 60] * * * ▪… … Universalium
Multi-frequency receiver — Multi Frequency signalling, (MF), is similar to the European version, CCITT Signaling System 5, (SS5). The original format was five tones used in pairs. This later evolved to six tones. Because its six tones are used only in pairs, this signaling … Wikipedia
Electronic voice phenomenon — Electronic voice phenomena (EVP) are sections of static noise on the radio or electronic recording that some listeners believe sound like voices speaking words; paranormal investigators sometimes interpret these noises as the voices of ghosts or… … Wikipedia
single-frequency signaling — A signaling system that uses a 2600Hz in band signal on the voice path. The tone is on in the idle condition, pulsed for dialing, and off when the circuit is in use … IT glossary of terms, acronyms and abbreviations
Interposition trunk — In telecommunication, the term interposition trunk has the following meanings: 1. A single direct transmission channel, e.g., voice frequency circuit, between two positions of a large switchboard to facilitate the interconnection of other… … Wikipedia
Канал тональной частоты — (англ. voice frequency circuit) это совокупность технических средств и среды распространения, обеспечивающая передачу электрических сигналов связи в эффективно передаваемой полосе частот (ЭППЧ) 0,3 3,4 кГц. В телефонии и связи… … Википедия
групповой канал низкой частоты — Канал передачи, образованный по проводной физической цепи, предназначенный для организации аналогового участка круга оперативно технологической железнодорожной связи с параллельным многократным подключением к нему коммутаторов станционной связи и … Справочник технического переводчика
