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GB/T 12057-1989 PDF English

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GB/T 12057-1989: General purpose 37-position and 9-position interface for data terminal equipment and data circuit-terminating equipment employing serial binary data interchange
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GB/T 12057-1989English1089 Add to Cart 6 days [Need to translate] General purpose 37-position and 9-position interface for data terminal equipment and data circuit-terminating equipment employing serial binary data interchange

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Basic data

Standard ID GB/T 12057-1989 (GB/T12057-1989)
Description (Translated English) General purpose 37-position and 9-position interface for data terminal equipment and data circuit-terminating equipment employing serial binary data interchange
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard L78
Classification of International Standard 35.2
Word Count Estimation 34,393
Date of Issue 12/29/1989
Date of Implementation 7/1/1990
Adopted Standard EIA RS449-1977, MOD
Issuing agency(ies) State Bureau of Technical Supervision
Summary This standard specifies: signal characteristics; mechanical properties of the interface; interchange circuits functional description; selected communication system for standard configuration interface. In addition, the standard also includes: suggestions and comments; terminology.

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