Table of Contents - G.978 (05/2025) - Characteristics of optical fibre submarine cables

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations
5	Characteristics of optical fibre submarine cable
	5.1	General
	5.2	Transmission characteristics of the cable
	5.3	Mechanical characteristics and resistance to the environment
6	Characteristics of optical fibre submarine spare cable
	6.1	General
	6.2	Submarine application system type
	6.3	Optical fibre submarine spare cable protection
	6.4	Transmission characteristics
7	Electrical characteristics
	7.1	General
	7.2	Recommended parameters for specification
8	Characteristics of fibre in a submarine cable
	8.1	General
	8.2	Optical fibre
	8.3	Transmission characteristics of the fibre
	8.4	Recommended parameters for specification
9	Transmission characteristics of elementary cable section
	9.1	General
	9.2	Transmission characteristics of the single-fibre type elementary cable section
	9.3	Transmission characteristics of the hybrid-fibre type elementary cable section
	9.4	Recommended parameters for specification
Appendix I – Optical fibre submarine cable structures and related information
	I.1	Cable structures
Bibliography