1 General
1.1 Scope
1.2 Objectives
1.3 Definitions
1.4 Applications and configurations
2
Functions
3
Optical transmission
3.1 Duplex method
3.2 Transmission medium
3.3 Definition of margins
3.4 Transmitter
3.5 Receiver
3.6 Optical characteristics of one-fibre line terminations
3.7 Optical path
4
System performance
4.1 Error performance
4.2 Jitter
5
Operation and maintenance
6
Power feeding
7
Environmental conditions
8
Safety considerations