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Acoustic Coupler - tradução para Inglês
COMMUNICATION DEVICE
Accoustic coupler; Acoustic coupling; Acoustically coupled modem; Phone coupler
acoustic coupler
(n.) = acoplador acústico
Ex: Unlike the modem, the acoustic coupler does not require an electrical connection.
Ex: Unlike the modem, the acoustic coupler does not require an electrical connection.
Acoustic Coupler
Acoplador Acústico
coupler
WIKIMEDIA DISAMBIGUATION PAGE
Couplers; Coupler (disambiguation)
----
* acoustic coupler = acoplador acústico
* acoustic coupler = acoplador acústico
Definição
acoustic coupler
<hardware, communications> A device used to connect a modem
to a telephone line via an ordinary handset. The acoustic
coupler converts electrical signals from the modem to sound
via a loudspeaker, against which the mouthpiece of a telephone
handset is placed. The earpiece is placed against a
microphone which converts sound to electrical signals which
return to the modem. The handset is inserted into a
sound-proof box containing the louspeaker and microphone to
avoid interference from ambient noise.
Acousitic couplers are now rarely used since most modems have
a direct electrical connection to the telephone line. This
avoids the signal degradation caused by conversion to and from
audio. Direct connection is not always possible, and was
actually illegal in the United Kingdom before {British
Telecom} was privatised. BT's predecessor, the General Post
Office, did not allow subscribers to connect their own
equipment to the telephone line.
(1994-11-08)
Wikipédia
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.
The link is achieved through converting electric signals from the phone line to sound and reconvert sound to electric signals needed for the end terminal, such as a teletypewriter, and back, rather than through direct electrical connection.
