ITU-T G978

Summary

Recommendation ITU-T G.978 deals with the characteristics of the optical fibre submarine cables used in Recommendations ITU-T G.973, ITU-T G.973.1, ITU-T G.974 and ITU-T G.977. It covers transmission characteristics of optical fibre submarine cables, optical fibres used in submarine cables, including mechanical characteristics and resistance to the environment and other electrical characteristics. It also covers the transmission characteristics of the single- and hybrid-fibre type elementary cable sections. Any specific information regarding the characteristics of optical fibre submarine cables are included in the relevant optical submarine system’s Recommendations.

Scope

This Recommendation deals with the characteristics of the optical fibre submarine cables used in [ITU-T G.973], [ITU-T G.973.1], [ITU-T G.974] and [ITU-T G.977]. An Optical Submarine Cable can be used in:

• a repeatered optical submarine system;
• a repeaterless optical submarine system

This Recommendation specifies the characteristics of the submarine cables which can be used in the deep and shallow waters. This Recommendation covers:

• transmission characteristics of optical fibres in submarine cables including mechanical characteristics and resistance to the environment;
• characteristics of optical fibre submarine cables including mechanical characteristics and resistance to the environment and other electrical characteristics;
• transmission characteristics of single- and hybrid-fibre type elementary cable sections.