1 Scope
2
References
3
Terms and definitions
3.1 Definitions
3.2 Terms defined in other Recommendations
4
Abbreviations
5
Applications
5.1 System types
5.2 System components
6
Types of transmission medium
7
Definitions of functions and compound functions (Functional blocks)
7.1 Functions defined in other Recommendations
7.2 New functions and compound functions (Functional blocks)
7.2.1 Optical
Channel Adaptation and Termination (OCA/OCT) compound function
7.2.2 Optical Supervisory Channel
Adaptation/Optical Channel Termination (OSCA/OCT) compound function
7.2.3 Optical Multiplex Section Adaptation and
Termination (OMSA/OMST) compound function
7.2.4 Optical Amplifier Section Adaptation and
Termination (OASA/OAST) compound function
7.2.5 Other functions/processes for
internetworking
8
Reference configurations for
single-channel systems
8.1 Compound functions describing single-channel systems
8.2 Functional configuration for single-channel interoffice line
(IOL) systems
8.2.1 Without in-line function capabilities
8.2.2 In-line non-regenerative repeater
8.2.3 Regenerator
9
Reference configurations for multichannel systems
9.1 Functional blocks describing multichannel systems
9.2 Functional configurations for a multichannel interoffice line
system
9.2.1 Without in-line function capabilities
9.2.2 Non-regenerative repeater
9.2.3 Regenerator
9.3 Interworking of compound functions in a multichannel system
10 Optical safety considerations
(Optical surge prevention, automatic power shutdown)
Annex A – Relation between compound functions and layered transport network
architecture
Annex B – Mapping between compound functions and transport functions
Appendix I – Physical implementations of multichannel systems
I.1 Transponder implementations
I.2 Stand-alone Booster Amplifier (BA) and Pre-Amplifier (PA)
Appendix II – Realizations of new functions
II.1 Optical Amplification (OA) function
II.2 Dispersion Accommodation (DA) function
Appendix III – Example of functional modelling for single-channel and
multichannel systems
III.1 Example 1: Stand-alone equipment
III.2 Example 2: Mapping of functional blocks of a line terminal in
a single-channel system on OAT and OAR implementations