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1988 | OriginalPaper | Buchkapitel

Modems and multiplexers

verfasst von : John R. Freer, BSc, DMS, CEng, FIEE

Erschienen in: Computer Communications and Networks

Verlag: Springer US

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Long-distance data communication over analog telephone lines requires a device called a MOdulator-DEModulator or MODEM to convert the digital signals into analog signals with frequencies within the bandwidth of the telephone line. Early data communications depended on dedicated or public switched telephone lines because there were few alternatives.

Metadaten
Titel
Modems and multiplexers
verfasst von
John R. Freer, BSc, DMS, CEng, FIEE
Copyright-Jahr
1988
Verlag
Springer US
DOI
https://doi.org/10.1007/978-1-4613-1041-9_3