X.21 : Interface between Data Terminal Equipment and Data Circuit-terminating Equipment for synchronous operation on public data networks

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X.21 : Interface between Data Terminal Equipment and Data Circuit-terminating Equipment for synchronous operation on public data networks

Recommendation X.21 (09/92)

Approved in 1992-09-10

Status : In force

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PDF (acrobat)

486820 bytes

1993-03-10

E 3105

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PDF (acrobat)

527160 bytes

1993-03-10

S 3106

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530401 bytes

1993-03-10

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Available languages and formats :

Click on the selected format
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Format

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Posted

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TIES users

English

Word

606213 bytes

1993-03-10

E 3105

Español

Word

674854 bytes

1993-03-10

S 3106

Français

Word

658584 bytes

1993-03-10

F 3104