BS EN 60728-13:2010
$215.11
Cable networks for television signals, sound signals and interactive services – Optical systems for broadcast signal transmissions
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 74 |
IEC 60728-13:2010(E) specifies the basic system parameters and methods of measurement for optical distribution system having a system outlet in order to assess the system performance and its performance limits. It describes the system specification of FTTH (fibre to the home) network for broadcast signal transmission. It is also applicable to the broadcast signal transmission using telecommunication network if it satisfies the optical portion of this standard. It describes RF transmission for broadcast and narrowcast (limited area distribution of broadcast) signals over FTTH, and introduces xPON system as a physical layer media. The contents of the corrigendum of August 2010 have been included in this copy.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | CONTENTS |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions |
| 15 | Tables Table 1 – Level of RF signals |
| 18 | 3.2 Symbols |
| 19 | 3.3 Abbreviations |
| 20 | 4 Optical system reference model |
| 21 | Figures Figure 1 – Optical system reference model for one-fibre solution Figure 2 – Optical system reference model for two-fibres solution |
| 22 | 5 Preparation of measurement 5.1 Environmental conditions Figure 3 – Example of PON triplexer Figure 4 – Performance specified points of the optical system |
| 23 | Table 2 – Measuring instruments |
| 24 | 5.2 Accuracy of measuring equipment 5.3 Source power 6 Methods of measurement 6.1 Measuring points and items Figure 5 – Typical optical video distribution system |
| 25 | 6.2 Optical power Table 3 – Measuring points and measured parameters |
| 26 | Figure 6 – Measurement of optical power using a WDM coupler Figure 7 – Measurement of optical power using a wavelength filter |
| 27 | 6.3 Carrier level and carrier-to-noise ratio Figure 8 – Arrangement of test equipment for carrier-to-noise ratio measurement |
| 28 | 6.4 Carrier-to-noise ratio defined by optical signal |
| 29 | Figure 9 – Measuring points in the optical cable TV network |
| 30 | Figure 10 – RIN measurement setup |
| 33 | Table 4 – Parameters used for the calculation of carrier-to-noise ratio (C/N) |
| 34 | 6.5 Optical modulation index 6.6 Carrier-to-crosstalk ratio (CCR) |
| 35 | Figure 11 – Arrangement of test equipment for measuring other services crosstalk |
| 36 | 7 Specification of optical system for broadcast signal transmission 7.1 Analogue and digital broadcast system over optical network Figure 12 – Performance allocation and measuring points |
| 37 | 7.2 International TV systems Table 5 – Minimum C/N requirements in operation Table 6 – Minimum RF signal-to-noise ratio requirements in operation |
| 38 | 7.3 Relationship between RIN and C/N |
| 39 | 7.4 Optical wavelength 7.5 Frequency of source signal 7.6 Optical system specification for broadcast signal transmission Table 7 – Types of broadcast services Table 8 – Type of service and minimum operational RIN values |
| 40 | 7.7 C/N ratio specification for in-house and in-building wirings Table 9 – Optical system specification |
| 41 | Figure 13 – Section of C/N ratio specification (45 dB) for in-house wiring (specified for electrical signals) Table 10 – Section of C/N ratio specification for in-house/in-building wiring |
| 42 | 7.8 Crosstalk due to optical fibre non-linearity Figure 14 – Section of C/N ratio specification for in-house wiring (specified for optical signals) |
| 43 | 7.9 Single frequency interference level due to fibre non-linearity 7.10 Environmental conditions Table 11 – Interference level due to fibre non-linearity Table 12 – Environmental conditions |
| 44 | Annex A (informative) Actual service systems and design considerations Figure A.1 – Example of a multi-channel service system of one million terminals |
| 45 | Figure A.2 – Example of a multi-channel service system of 2 000 terminals Table A.1 – Operating conditions of a multi-channel service system |
| 46 | Figure A.3 – Example of re-transmission service system of 72 terminals Figure A.4 – Example of re-transmission service system of 144 terminals Table A.2 – Operating conditions of re-transmission service system |
| 48 | Table A.3 – Basic system parameters for multi-channel and re-transmission service systems |
| 50 | Figure A.5 – Model No.1 of a system performance calculation |
| 51 | Figure A.6 – Model No.2 of a system performance calculation |
| 52 | Figure A.7 – Model No.3 a of system performance calculation |
| 53 | Figure A.8 – Model No.4 of a system performance calculation |
| 54 | Figure A.9 – Model No.5 of a system performance calculation |
| 55 | Figure A.10 – Model No.6 of a system performance calculation |
| 56 | Figure A.11 – Model No.7 of system performance calculation |
| 57 | Table A.4 – Verified optimum operation |
| 59 | Annex B (informative) Optical system overview Figure B.1 – Topology of optical system |
| 60 | Figure B.2 – Network composition |
| 61 | Figure B.3 – Example of SS system Figure B.4 – Example of ADS system |
| 62 | Figure B.5 – Example of PON system Table B.1 – PON systems and main parameters |
| 63 | Annex C (informative) Optical system degradations Figure C.1 – Reflection model |
| 64 | Figure C.2 – Degradation factors of optical transmission system Figure C.3 – SBS generation image |
| 65 | Table C.1 – Disturbance parameter of Raman crosstalk |
| 66 | Figure C.4 – Interference between two wavelengths Figure C.5 – Simulation of SRS(OLT transmission power versus D/U) |
| 67 | Figure C.6 – Simulation of SRS (D/U in arbitrary unit versus fibre length) Figure C.7 – Fibre length of the first peak of SRS D/U versus frequency |
| 68 | Figure C.8 – GE-PON idle pattern spectrum (IEEE 802.3ah 1000Base-PX) (62,5 MHz = 1 250 Mbps/20 bit) |
| 69 | Annex D (normative) Measurement of parameters (R, Id0, Ieq and G) required for RIN calculation |
| 70 | Figure D.1 – Measurement of gain (G) |
| 71 | Bibliography |
