(Q1424171)

English

X.21

ITU-T telecommunications interface specification

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ITU-T Recommendation

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X21-15pin-D-Sub-connector-0a.jpg
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Recommendation X.21 (11/1988): Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for synchronous operation on public data networks

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Commons category

ITU X.21

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Identifiers

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1 reference

Freebase Data Dumps

publication date

28 October 2013

ITU-T Recommendation

X.21

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ITU/ISO/IEC object ID

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Microsoft Academic ID

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Sitelinks

Wikipedia(7 entries)

arwiki X.21
cswiki X.21
dewiki X.21
enwiki X.21
frwiki X.21
itwiki X.21
nnwiki X.21

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Multilingual sites(1 entry)

commonswiki Category:ITU X.21

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