Transdata acoustic coupler port for telephone data link 307, 1981-1990

Made:
1981-1990 in United Kingdom

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Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Transdata acoustic coupler port for telephone data link 307, made by British Telecom, British, 1981-1990. Cream coloured with black cradles for telephone mouthpiece and earpirce, with British Telecom logo on the side.

Transdata acoustic coupler port for telephone data link 307, made by British Telecom, British, 1981-1990.

An acoustic coupler is a device used to connect computers to telephone lines using a standard telephone. A standard telephone handset was placed into a cradle that had been designed to fit closely around the microphone and earpiece using rubber seals. The coupler converted electrical signals from the computer into audio signals that could be transmitted along telephone lines. The use of acoustic couplers dwindled after direct electrical connections to telephone lines were legalised. They are still used by people travelling in areas of the world where electrical connections to the telephone network are illegal or impractical.

On display

Science Museum: Information Age Gallery: Exchange

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Details

Category:
Telecommunications
Object Number:
2004-200
type:
modem
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • computer peripheral
credit:
Donated by BT Heritage and Archives
status:
Permanent collection

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