Annotated edit history of
2B1Q version 3 showing authors affecting page license.
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DanielLawson |
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[Acronym] for 2 __B__inary 1 __Q__uaternary. |
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[2B1Q] is a full duplex physical layer encoding method, used in [ISDN], [HDSL] and [SDSL]. |
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Two binary bits are encoded into one quaternary signal, which doubles the effectiveness of transmission. |
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|Bits|Quaternary Symbol|Voltage Level |
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|00|-3|-2.5 |
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|01|-1|-0.833 |
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|10|+3|+2.5 |
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|11|+1|+0.833 |
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StuartYeates |
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See also: [Binary], [Ternary], [Quaternary]. |
