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BS 6639

1990 Edition, October 31, 1990

Complete Document

Guide to DTE/DCE Interface Control Operation Using the 25 Pole Connector



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Superseded By: BS ISO/IEC 8480

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W/D S/S BY BS ISO/IEC 8480
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Description / Abstract:

Specifies the implementation of a back-up operation for data transmission on a leased line by means of the CCITT Recommendation V.24 interchange circuits when using the 25-pin connector ISO 2110.