IEC TR 60728-6-1:2006

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
   3.1 Symbols
   3.2 Abbreviations
4 Topologies used for optical transmission systems in cable
   networks
   4.1 Point-to-point system
   4.2 Point-to-multi-point system
   4.3 Multi-point-to-point system
   4.4 Real wavelength division multiplex system
   4.5 Combinations
5 Influences of equipment and fibre parameters on the system
   performance
6 Optical modulation index
   6.1 Single wavelength system
   6.2 WDM systems
   6.3 Choosing the right input level at the transmitter
7 Carrier-to-noise ratio
   7.1 Short-haul links with a single transmitter
   7.2 Long-haul point-to-point link
   7.3 Multiple transmitter systems (WDM)
   7.4 Transmission systems with optical fibre amplifier
8 Linearity
   8.1 Composite second order (CSO)
   8.2 Composite triple beat (CTB)
9 Flatness
10 Output level
Annex A (informative) Brillouin scattering in optical fibres
Annex B (informative) Noise sources of optical transmission
                      systems
Annex C (informative) Non-linear distortion in optical
                      transmission systems
Bibliography

provides guidelines and procedures for determining the overall performance of optical transmissions systems used in cable networks for television signals, sound signals and interactive services. It is based on the requirements for optical equipment defined in IEC 60728-6 and should be used together with this standard. The information provided is meant to help field engineers and network planners (system designers) in planning and designing optical systems. Though this content is less dense than in a standard, basic knowledge about system parameters of cable networks is needed.