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Encyclopedia > Coupler

Coupler is a word used to describe any of a number of things:


  Results from FactBites:
 
coupler - definition of coupler in Encyclopedia (1142 words)
In 1893, satisfied that an automatic coupler could meet the demands of commercial railroad operations and, at the same time, be manipulated safely, the United States Congress passed the Safety Appliance Act.
In absolute numbers, coupler related accidents dropped from nearly 11,000 in 1892 to just over 2,000 in 1902, even though the number of railroad employees steadily increased during that decade.
A coupler is also a feature of organs, which will cause a key depressed on a keyboard to play another key on the same keyboard, play a key on a different keyboard, or sound a note in some division.
Modem - Wikipedia, the free encyclopedia (5536 words)
Since the modem could not dial the phone, the acoustic coupler remained common because you needed to dial the phone separately anyway.
Modems generally remained at 300 and 1200 bps into the mid-1980s, although over this period the acoustic coupler disappeared seemingly overnight as Smartmodem-compatible modems flooded into the market.
A 2400 bps system similar in concept to the 1200 bps Bell 212 signalling was introduced in the US, and a slightly different, and incompatible, one in Europe.
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