1
Scope
2 References
3 Terms and definitions
3.1 Definitions
3.2 Terms defined in other
Recommendations
4 Abbreviations
5 General optical safety
considerations
5.1 Safety considerations for avoiding
damage to the human eye and skin
5.2 Safety considerations to avoid
ignition
6 Procedures and guidelines
6.1 General
6.2 APR procedures
Appendix I – Examples
of APR architectures for systems (including those based upon Raman
amplification) deploying an OSC
I.1 Introduction
I.2 Description of APR procedure using
co-propagating OSC
I.3 Description of APR procedure using
counter-propagating OSC
Appendix II –
Considerations on optical safety mechanisms for systems employing Raman
amplification
Appendix III –
Description of ALS/APSD procedures for single-channel point-to-point SDH
systems
III.1 Introduction
III.2 Single-channel point-to-point SDH without line amplifiers
III.3 Single-channel point-to-point SDH
with line amplifiers