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Acoustic coupler

Definition of the noun Acoustic coupler

What does Acoustic coupler mean as a name of something?


  1. An interface device for coupling electrical signals by acoustical means—usually into and out of a telephone instrument.
  2. A terminal device used to link data terminals and radio sets with the telephone network.


Acoustic coupler: In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone instrument.

Printed dictionaries and other books with definitions for Acoustic coupler

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Google previewComputer Communications (2013)

by R. COLE

An acoustic coupler does not need installation directly into the telephone system. An acoustic coupler uses the same frequencies as the ordinary MODEM, but instead of placing them directly onto the telephone 1ine it whistles into the mouthpiece of a telephone handset and takes the received signals from the earpiece. The acoustic coupler is a very cheap and convenient way of connecting a terminal to any telephone. Unfortunately, using the handset allows other noises from the room ...

Google previewEnterprise Resource Planning (2004)

by Pankaj Sharma

Acoustic Coupler is a hardware device which allows a modem to connect to a voice circuit. This type of device is no longer manufactured. Acquisition To gain possession or use of something. Active Attack Attacks which modify the target system or the state of the TCP/ lP stack. Active Attacks are more destructive than Passive Attacks. Active Server pages Active Server Pages refers to a Microsoft technology in which program commands are embedded in HTML pages.

Google previewData Communications (2013)

An Introduction to Concepts and Design by Robert Techo

An acoustic coupler is a portable modem which transmits ...

Google previewDictionary of Computer & Information Technology (2014)

by Mrinal Talukdar

Acoustic coupler An acoustic coupler is a hardware device that enables a modem to connect to a voice circuit.

Google previewDictionary of it Terms (2009)

by S.k.bansal

Acoustic coupler : An acoustic coupler is a hardware device that enables a modem (a device that converts signals from analog to digital and from digital back to analog) to connect to a voice circuit, A handset adapter is used to receive modem tones through the handset's mouthpiece, and the earpiece is used to transmit these tones to the modem ACR : Attenuation-to-crosstalk ratio ( ACR), also called headroom, is the difference, expressed as a figure in decibels (dB), between the ...

Google previewInformation System Management (2002)

by Ankita Bansal

The acoustic coupler is a very cheap and convenient way of connecting a terminal to any telephone. Unfortunately, using the handset allows other noises from the room to interfere, so it is not as reliable as an installed MODEM. Higher- speed asynchronous MODEM Sometimes a faster rate of data transfer is required , say for printing messages, though the input may still be slow. The bandwidth available on the PSTN is not sufficient, given the noise, to allow a full duplex connection ...

Google previewFuture Information Technology--1984 Telecommunications (1984)

acoustic coupler An acoustic coupler is a modem designed to connect directly to the handset of a voice telephone. It enables digital terminals to communicate with remote devices using the analog lines of the public telephone network. It does this by converting digital signals to analog before transmission, and analog signals to digital upon reception. Acoustic couplers are typically used for relatively low-speed transmission (1200 bps or slower) . analog signal An analog representation ...

Google previewThe Modem Dictionary (1994)

by R. Scott Perry

[See also acoustic coupler]. adaptive data compression - See ADC. adaptive dialing - When a modem can determine whether to dialpulse or tone. It will try dialing with tones first. If thatdoesn't work, it will dial pulse. adaptive equalization - Modems that have this feature "listen" to the phone line to find the bandwidth with the least noise, and use that part of the band for transmission. This allows for less ...

Google previewA Dictionary of Computer Science (2016)

by Andrew Butterfield, Gerard Ekembe Ngondi, Anne Kerr

The connection between the acoustic coupler and the telephone system is made by means of a small microphone and loudspeaker held close to the earpiece and mouthpiece of an ordinary telephone handset in a soundabsorbent enclosure. Although largely superseded by devices that connect directly to the telephone network, acoustic couplers are still used. The lack of any electrical connection between terminal and phone lines is of benefit when obtaining the approval of the PTT ...

Google previewA Dictionary of Tourism and Travel (2012)

by Allan Beaver

acoustic coupler The small device ...

Google previewEncyclopedia Of Information Technology (2007)

by Atlantic

Acoustic coupler This is a hardware device that enables a ...

Google previewDictionary of Computer Networking

Acoustic Coupler A modem that includes a pair of rubber cups that fit over the mouthpiece and earpiece of a standard telephone handset (to prevent external noise from being picked up). An acoustic coupler allows you to connect your computer to a telephone system that does not the standard RI-II connections with have used conventional modems. Across-the-wire Migration A method of migrating file-server data, trustee rights, and other information to a Novell NetWare server using ...

Google previewFocal Illustrated Dictionary of Telecommunications (2013)

by Xerxes Mazda, Fraidoon Mazda

acoustic coupler:A ...

Google previewAcademic Press Dictionary of Science and Technology (1992)

by Christopher G. Morris, Academic Press

acoustic coupler Acoustical Engineering, a device that acts as an interface in the conversion of acoustic signals to electric signals, or vice ...

Google previewDictionary of ICT (2015)

Information and Communication Technology by Peter Collin

the amplifier is overloaded acoustic coupler /əˌkuːstɪk ˈkʌplə/ noun a device that connects to a telephone handset, converting binary computer data into butuses a handset onwhicha loudspeaker is placed to sendthe signals. sound signalsto allowitto betransmitted downa telephone line COMMENT: Theacoustic coupleralsoconverts back fromsound signals to digitalsignals when receiving messages.Itisbasically the sameasamodem databaseor multimedia effects to a website that ...

Google previewAn Encyclopedia of the History of Technology (2002)

by Ian McNeil

the acoustic coupler . Rubber cups whichfit overthe telephone handset provide atemporary connection. The purpose ofany modem isto convert pulses, which cannot be passed through the PSTN, to audible tones of standard modem frequencies, which can. However, this type of ...

Google previewDictionary of Personal Computing and the Internet (1997)

by S. M. H. Collin

accounting popular software application for automating accounting and book-keeping acoustic coupler type of modem that has rubber cups that fit around the mouth and ear-piece of a normaltelephone handset. This converts data from the computer into sound that is then transmitted across the telephone network to another computer with a modem. Most modems plug directly into a ...

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