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BS ISO/IEC 8480:1995

Current

Current

The latest, up-to-date edition.

Information technology. Telecommunications and information exchange between systems. DTE/DCE interface back-up control operation using ITU-T Recommendation V.24 interchange circuits

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-01-1996

€140.23
Excluding VAT

NO CONTENTS LISTED

Committee
IST/6
DevelopmentNote
Inactive for the new design. Supersedes BS 6639(1990) & 94/647613 DC (03/2004)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

This International Standard specifies the procedures for back-up operation applicable to data transmission on a leased line when implemented through a single interface, controlling both the leased and the back-up facilities, using ITU-T Recommendation V.24 interchange circuits in conjunction with either the 25-pole connector (ISO 2110) or the 26-pole connector (ISO/IEC 11569). The method used to switch the transmission of data automatically from the leased line to or from the back-up facility is not specified in this International Standard. This International Standard is not applicable where back-up (calling or answering) is achieved by manual means. NOTES The procedures specified in this International Standard may be used at the answering end only, the calling end only, or both ends of a connection. An ordinary DCE (i.e. one not implementing back-up control) may be provided at either end of the back-up circuit and only for back-up purposes. For example, a calling station could provide one or more separate auto-dial GSTN lines to provide back-up on demand to a greater number of leased lines.

Standards Relationship
ISO/IEC 8480:1995 Identical

ISO/IEC 11569:1993 Information technology Telecommunications and information exchange between systems 26-pole interface connector mateability dimensions and contact number assignments

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