Acoustic coupler

（重定向自Acoustic coupling）

The Novation CAT acoustically coupled modem

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

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.

单词	Acoustic coupling
释义	Acoustic coupling 英语百科 Acoustic coupler （重定向自Acoustic coupling） In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone instrument. 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.
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