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4,800 and 9,600 bits per second two-wire duplex modems for data communications use on telephone-type circuits
Publication year - 1992
Language(s) - English
Resource type - Reports
DOI - 10.6028/nist.fips.166
Subject(s) - duplex (building) , electronic circuit , telecommunications , electrical engineering , computer science , engineering , chemistry , dna , biochemistry

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