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ITU
International Telecommunication Union - this page is a stub

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Regions
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Sections
  • R
    Radio
  • T
    Tele ...
ITU recommendations
  • V.10=files/v10_19930312.pdf
  • Electrical characteristics for unbalanced double-current interchange
  • circuits operating at data signalling rates nominally up to 100 kbit/s.
  • E 4252. Approved 1993-03-12.

  •  Link
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