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ITU-T G.957

Optical interfaces for equipments and systems relating to the synchronous digital hierarchy

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Organization: ITU-T
Publication Date: 1 March 2006
Status: active
Page Count: 38
scope:

This Recommendation covers optical interface parameter specifications for equipments and systems supporting the Synchronous Digital Hierarchy (SDH) defined in ITU-T Rec. G.707/Y.1322 and operating on single-mode optical fibres conforming to ITU-T Recs G.652, G.653 and G.654.

The purpose of this Recommendation is to provide specifications for the optical interfaces of SDH equipment, described in ITU-T Rec. G.783, to achieve the possibility of transverse (multivendor) compatibility on elementary cable sections, i.e., the possibility of mixing various manufacturers' equipments within a single optical section. However, the specifications in this Recommendation are also intended to be in accordance with ITU-T Rec. G.955 which provides the possibility to achieve longitudinal compatibility for equipment of comparable hierarchical level and application.

This Recommendation is based on the use of one fibre per direction. Any other optical arrangements may require different specifications and are for further study.

Document History

ITU-T G.957
March 1, 2006
Optical interfaces for equipments and systems relating to the synchronous digital hierarchy
This Recommendation covers optical interface parameter specifications for equipments and systems supporting the Synchronous Digital Hierarchy (SDH) defined in ITU-T Rec. G.707/Y.1322 and operating on...
January 1, 2005
Optical interfaces for equipments and systems relating to the synchronous digital hierarchy Amendment 2 SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital sections and digital line system – Digital line systems
A description is not available for this item.
December 1, 2003
Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Digital Line Systems
A description is not available for this item.
June 22, 1999
Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Digital Line Systems
A description is not available for this item.
January 1, 1995
Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy - Digital Sections and Digital Line Systems
A description is not available for this item.
January 1, 1993
Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy - Digital Sections and Digital Line Systems (Study Group XV) 28 pp
A description is not available for this item.
January 1, 1990
Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy (Study Group XV) 32 pp
A description is not available for this item.

References

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