acoustic coupler

noun — 2 senses

acoustic coupler

noun

1

An interface device for coupling electrical signals by acoustical means.

2

Communications, Electrical engineering, Engineering, Natural sciences, Physical sciences, Telecommunications Dated A terminal device used to link data terminals and radio sets with the telephone network.

The call will be answered with a high-pitched tone; no human voice will be heard. The phone receiver should be placed in the acoustic coupler, if one is used, with the cord in the proper position.1984, Christine L. Borgman, Effective Online Searching: A Basic Text, CRC Press, →ISBN, page 52:

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