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D4

See D-4.



D-4

(1) (D4) A framing format for T1 transmission that places 12 T1 frames into a superframe. See ESF.

(2) (Digital-4) There was never a D-4 videotape format because the Japanese believe 4 is unlucky. The pronunciation of the number sounds like the word for "death."



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D3DA converter
D3DDaala

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