1 Scope
1.1 Equipment covered by this Recommendation
1.2 Additional requirements
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Safety criteria for telecommunication network infrastructure equipment
5.1 General requirements
5.2 Special requirements
Appendix I – Cross-reference between Recommendation ITU-T K.51,
IEC 60950-1 and IEC 62368- 1
Bibliography