CSA ISO/IEC 8480
Information Technology - Telecommunications and Information Exchange between Systems - DTE/DCE Interface Back-Up Control Operation Using ITU-T Recommendation V.24 Interchange Circuits
| Organization: | CSA |
| Publication Date: | 1 March 2001 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Physical layer): | 35.100.10 |
scope:
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 KU-T Recommendation V.24 interchange circuits in conjunction with either the 25- pole connector (IS0 2110) or the 26.pole connector (ISOIIEC 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
1 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.
2 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.
Document History
