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BS 6639:1990

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Guide to DTE/DCE interface control operation using the 25 pole connector

Available format(s)

Hardcopy , PDF

Superseded date

15-01-1996

Superseded by

BS ISO/IEC 8480:1995

Language(s)

English

Published date

31-10-1990

Committees responsible
National foreword
Guide
1. Scope and field of application
2. References
3. Switching to back-up operation
4. Contact number assignment
Annexes
A. State diagrams
B. Proposed new definition for interchange circuit 116
Figures
1. Back-up switching in "Direct Mode"
2. Back-up switching in "Authorized Mode"

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.

Committee
IST/6
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

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