{"id":439491,"date":"2024-10-20T08:09:23","date_gmt":"2024-10-20T08:09:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60728-1132023-tc\/"},"modified":"2024-10-26T15:16:39","modified_gmt":"2024-10-26T15:16:39","slug":"bs-en-iec-60728-1132023-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60728-1132023-tc\/","title":{"rendered":"BS EN IEC 60728-113:2023 – TC"},"content":{"rendered":"

IEC 60728-113:2023 is applicable to optical transmission systems for broadcast signal transmission that consist of headend equipment, optical transmission lines, in-house wirings and system outlets. These systems are primarily intended for television and sound signals using digital transmission technology. This document specifies the basic system parameters and methods of measurement for optical distribution systems between headend equipment and system outlets in order to assess the system performance and its performance limits. In this document, the upper signal frequency is limited to about 3 300 MHz. The purpose of this part of IEC 60728 is to describe the system specifications of FTTH (fibre to the home) networks for digitally modulated broadcast signal transmission. This document is also applicable to broadcast signal transmission using a telecommunication network if it satisfies the performance of the optical portion of the system defined in this document. This document describes RF transmission for fully digitalized broadcast and narrowcast (limited area distribution of broadcast) signals over FTTH, and introduces the xPON system as a physical layer media. The detailed description of the physical layer is out of scope of this document. The scope is limited to downstream RF video signal transmission over FTTH; IP transport technologies, such as IP Multicast and associate protocols, which require a two-way optical transmission system, are out of scope of this document. Some interference effects occurring between the telecommunication system and the broadcast system are addressed in Clause 7. IEC 60728-113:2023 cancels and replaces the first edition published in 2018 and IEC 60728-13-1:2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) IEC 60728-13-1, which deals with the bandwidth expansion for broadcast signal over FTTH systems, has been merged with this document; b) a table containing the digital signal level at the system outlet has been added.<\/p>\n

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162<\/td>\nundefined <\/td>\n<\/tr>\n
165<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
168<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
174<\/td>\nFOREWORD <\/td>\n<\/tr>\n
176<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
177<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
178<\/td>\n3 Terms, definitions, graphical symbols and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
182<\/td>\nTables
Table 1 \u2013 Level of RF signals <\/td>\n<\/tr>\n
185<\/td>\n3.2 Graphical symbols <\/td>\n<\/tr>\n
186<\/td>\n3.3 Abbreviated terms <\/td>\n<\/tr>\n
187<\/td>\n4 Optical system reference model
4.1 Overview
4.2 Over-all FTTH system reference model <\/td>\n<\/tr>\n
189<\/td>\nFigures
Figure 1 \u2013 Example of FTTH system for television and sound signal <\/td>\n<\/tr>\n
190<\/td>\n4.3 Reference models for the optical systems for broadcast signal transmissions
4.3.1 Optical wavelength for FTTH system
4.3.2 Reference models
Table 2 \u2013 Optical wavelength for FTTH system
Table 3 \u2013 Frequency range <\/td>\n<\/tr>\n
191<\/td>\n4.4 Specified performance points of the optical system
5 Preparation of measurement
5.1 Environmental conditions
5.1.1 Standard measurement conditions
Figure 2 \u2013 FTTH Cable TV system using one wavelength
Figure 3 \u2013 FTTH Cable TV system using two wavelengths
Figure 4 \u2013 Specified performance points of the optical system <\/td>\n<\/tr>\n
192<\/td>\n5.1.2 Temperature and humidity
5.1.3 Setting up the measuring setup and system under test
5.1.4 AGC\/ALC operation
5.1.5 Impedance matching between pieces of equipment
5.1.6 Standard operating condition
5.1.7 Standard signal and measuring equipment <\/td>\n<\/tr>\n
193<\/td>\n5.2 Accuracy of measuring equipment
5.3 Source power
6 Methods of measurement
6.1 Measuring points and items
6.1.1 General
Table 4 \u2013 Measuring equipment <\/td>\n<\/tr>\n
194<\/td>\n6.1.2 Measuring points
6.1.3 Measured parameters
Figure 5 \u2013 Typical optical video distribution system <\/td>\n<\/tr>\n
195<\/td>\n6.2 General measurement requirement
6.2.1 General
6.2.2 Input specification
6.2.3 Standard measurement conditions
Table 5 \u2013 Measuring points and measured parameters <\/td>\n<\/tr>\n
196<\/td>\n6.2.4 Precautions for measurements
6.3 Optical power
6.3.1 General
6.3.2 Measuring setup
Figure 6 \u2013 Test setup for optical power measurement using a wavelength filter <\/td>\n<\/tr>\n
197<\/td>\n6.3.3 Measuring method
6.3.4 Precautions for measurement
6.3.5 Presentation of the results
Figure 7 \u2013 Test setup for optical power measuring using a WDM coupler <\/td>\n<\/tr>\n
198<\/td>\n6.4 Optical wavelength
6.4.1 Introduction
6.4.2 Method of measurement
6.4.3 Presentation of the results
6.5 SINR (signal-to-intermodulation and noise ratio) below 1GHz
6.5.1 General
Figure 8 \u2013 Measurement of optical wavelength without a WDM coupler
Figure 9 \u2013 Measurement of optical wavelength using a WDM coupler <\/td>\n<\/tr>\n
199<\/td>\n6.5.2 Measuring setup
6.5.3 Measuring conditions
6.5.4 Precautions for measurement
Figure 10 \u2013 Test setup for RF signal to intermodulation and noise ratio measurement <\/td>\n<\/tr>\n
200<\/td>\n6.5.5 Presentation of the results
6.6 Relative intensity noise (RIN) of optical signal
6.6.1 General
6.6.2 Measuring setup <\/td>\n<\/tr>\n
201<\/td>\n6.6.3 Measurement conditions
6.6.4 System RIN measuring method
Figure 11 \u2013 Test setup for RIN measurement <\/td>\n<\/tr>\n
203<\/td>\n6.6.5 SINR calculation based on RIN value
6.6.6 Component RIN calculation <\/td>\n<\/tr>\n
205<\/td>\n6.6.7 Example for calculating of SINR
Table 6 \u2013 Parameters used for the calculation of SINR <\/td>\n<\/tr>\n
206<\/td>\nTable 7 \u2013 RF signal noise bandwidth <\/td>\n<\/tr>\n
207<\/td>\n6.7 Optical modulation index
6.8 Signal-to-crosstalk ratio (SCR)
6.8.1 General
6.8.2 Equipment required
6.8.3 General measurement requirements
6.8.4 Procedure
Figure 12 \u2013 Test setup for signal to crosstalk measurement <\/td>\n<\/tr>\n
208<\/td>\n6.8.5 Potential sources of error
6.8.6 Presentation of the results
6.9 RF signal-to-intermodulation and noise ratio (SINR) of satellite broadcast signals
6.9.1 General <\/td>\n<\/tr>\n
209<\/td>\n6.9.2 Measuring setup
6.9.3 Equipment required
6.9.4 Measurement procedure
Figure 13 \u2013 Setup for the measurement of SINR for satellite broadcast signals <\/td>\n<\/tr>\n
210<\/td>\n6.9.5 Presentation of the results
6.10 System BER (bit error ratio)
6.10.1 Overview
6.10.2 Connection of the equipment
Figure 14 \u2013 Test setup for BER measurement <\/td>\n<\/tr>\n
211<\/td>\n6.10.3 Measurement procedure
6.10.4 Presentation of the results
6.11 SINR versus BER measurement
6.11.1 General
6.11.2 Connection of the equipment
Figure 15 \u2013 Test setup for SINR versus BER measurement procedure <\/td>\n<\/tr>\n
212<\/td>\n6.11.3 Presentation of the results
Figure 16 \u2013 Extrapolation method of BER measurement <\/td>\n<\/tr>\n
213<\/td>\n6.12 System noise margins
6.12.1 General
6.12.2 Connection of the equipment
Figure 17 \u2013 Example of SINR versus BER characteristics <\/td>\n<\/tr>\n
214<\/td>\n6.12.3 Measurement procedure
6.12.4 Presentation of the results
Figure 18 \u2013 Test setup for system noise margin measurement <\/td>\n<\/tr>\n
215<\/td>\n6.13 Modulation error ratio (MER)
6.13.1 General
6.13.2 Connection of the equipment
Figure 19 \u2013 Example of system noise margin characteristics
Figure 20 \u2013 Test setup for MER measurement <\/td>\n<\/tr>\n
216<\/td>\n6.13.3 Measurement procedure
6.13.4 Presentation of the results
6.14 In-band frequency characteristics between optical transmitter and V-ONU
6.14.1 Overview
6.14.2 Measurement setup
Figure 21 \u2013 Example of result of MER measurement (64-QAM modulation format) <\/td>\n<\/tr>\n
217<\/td>\n6.14.3 Measuring method
6.14.4 Presentation of the results
Figure 22 \u2013 Setup for the measurement of in-band frequency characteristics
Figure 23 \u2013 Measurement example of in-band frequency characteristics <\/td>\n<\/tr>\n
218<\/td>\n7 Specification of the optical system for broadcast signal transmission
7.1 Digital broadcast system over optical network
7.2 RF signal levels at system outlet
Figure 24 \u2013 Performance specified points <\/td>\n<\/tr>\n
219<\/td>\n7.3 RF signal-to-intermodulation and noise ratio and performance allocation
Table 8 \u2013 Digital signal levels at the system outlet <\/td>\n<\/tr>\n
220<\/td>\nTable 9 \u2013 Minimum SINR (SDU case) <\/td>\n<\/tr>\n
221<\/td>\nTable 10 \u2013 Minimum SINR (MDU case) <\/td>\n<\/tr>\n
222<\/td>\nTable 11 \u2013 Minimum RF SINR requirements in operation <\/td>\n<\/tr>\n
224<\/td>\n7.4 Relationship between RIN and SINR
7.4.1 Type of broadcast services
Table 12 \u2013 Types of broadcast services <\/td>\n<\/tr>\n
225<\/td>\n7.4.2 Types of broadcast services and relative signal level <\/td>\n<\/tr>\n
226<\/td>\n7.4.3 RIN performance requirements
Table 13 \u2013 Types of broadcast services and relative signal level
Table 14 \u2013 Minimum operational RIN values for digital broadcast servicesusing the frequency band below 1 000 MHz <\/td>\n<\/tr>\n
227<\/td>\nTable 15 \u2013 Type of service and minimum operational RIN values for satellite services <\/td>\n<\/tr>\n
228<\/td>\n7.5 Optical wavelength
Table 16 \u2013 Performance of optical wavelength and power <\/td>\n<\/tr>\n
229<\/td>\n7.6 Frequency of source signal
7.7 Level difference between adjacent channels <\/td>\n<\/tr>\n
230<\/td>\nFigure 25 \u2013 Permissible signal level of adjacent channels (ISDB-T, ISDBC and ISDBC2) <\/td>\n<\/tr>\n
231<\/td>\n7.8 BER at headend input
7.9 MER <\/td>\n<\/tr>\n
232<\/td>\n7.10 SINR specification for in-house and in-building wirings
Table 17 \u2013 Minimum MER Performance a for FTTH systems <\/td>\n<\/tr>\n
233<\/td>\nFigure 26 \u2013 Section SINR for SDU wiring (specified by electrical signal)
Table 18\u2013 Section SINR for in-house\/in-building wiring <\/td>\n<\/tr>\n
234<\/td>\n7.11 In-band frequency characteristics
Figure 27 \u2013 Section SINR for MDU wiring (specified by electrical signal)
Figure 28 \u2013 Section SINR for MDU wiring (specified by optical signal)
Table 19 \u2013 In-band frequency characteristics specification <\/td>\n<\/tr>\n
235<\/td>\n7.12 Electrical signal interference
Figure 29 \u2013 Signal level difference with 3rd order interference signal (ISDB-T)
Table 20 \u2013 Limits for in-channel electrical signal interference <\/td>\n<\/tr>\n
236<\/td>\nFigure 30 \u2013 Signal level difference with 3rd order interference signal (ISDB-C 64QAM)
Figure 31 \u2013 Signal level difference with 3rd order interference signal (ISDB-C 256QAM)
Figure 32 \u2013 Level difference between signal and reflected (echo) signal (ISDB-T) <\/td>\n<\/tr>\n
237<\/td>\n7.13 Crosstalk due to optical fibre non-linearity
Figure 33 \u2013 Level difference between signal and reflected (echo) signal (ISDB\u2011C 64QAM)
Figure 34 \u2013 Level difference between signal and reflected (echo) signal (ISDB\u2011C 256QAM) <\/td>\n<\/tr>\n
238<\/td>\n7.14 Interference due to intermodulation noise caused by fibre non-linearity
7.15 Environmental conditions
Table 21 \u2013 Interference level due to fibre non-linearity
Table 22 \u2013 Environmental conditions <\/td>\n<\/tr>\n
239<\/td>\nAnnex A (informative)Actual service systems and design considerations
A.1 General
A.2 Multi-channel service system
A.2.1 General
Figure A.1 \u2013 Example of a multi-channel service system of one million terminals <\/td>\n<\/tr>\n
240<\/td>\nA.2.2 Operating conditions
A.2.3 Operating environment
Figure A.2 \u2013 Example of a multi-channel service system of 2 000 terminals
Table A.1 \u2013 Operating conditions of a multi-channel service system <\/td>\n<\/tr>\n
241<\/td>\nA.3 Re-transmission service system
A.3.1 General
A.3.2 Operating conditions
Figure A.3 \u2013 Example of re-transmission service system of 72 terminals
Figure A.4 \u2013 Example of re-transmission service system of 144 terminals <\/td>\n<\/tr>\n
242<\/td>\nA.3.3 Operating environment
A.4 SINR calculation of optical network
Table A.2 \u2013 Operating conditions of re-transmission service system <\/td>\n<\/tr>\n
243<\/td>\nA.5 System reference model <\/td>\n<\/tr>\n
244<\/td>\nTable A.3 \u2013 Basic system parameters for multi-channeland re-transmission service systems <\/td>\n<\/tr>\n
245<\/td>\nFigure A.5 \u2013 Model 1 system performance calculation <\/td>\n<\/tr>\n
246<\/td>\nFigure A.6 \u2013 Model 4 system performance calculation <\/td>\n<\/tr>\n
247<\/td>\nA.6 Hints for actual operation
A.6.1 Optimum operation
A.6.2 Key issues to be specified <\/td>\n<\/tr>\n
248<\/td>\nAnnex B (informative)BER extrapolation method
Figure B.1 \u2013 Extrapolation method of BER measurement <\/td>\n<\/tr>\n
249<\/td>\nFigure B.2 \u2013 BER characteristics for 256-QAM, 1 024-QAM and 4 096-QAM(extrapolation method) <\/td>\n<\/tr>\n
250<\/td>\nAnnex C (informative)Optical system degradations
C.1 System degradation factors
Figure C.1 \u2013 Reflection model <\/td>\n<\/tr>\n
251<\/td>\nC.2 Non-linear degradation
C.2.1 Degradation factors
C.2.2 Stimulated Brillouin scattering (SBS)
Figure C.2 \u2013 Degradation factors of optical transmission system
Figure C.3 \u2013 SBS generation image <\/td>\n<\/tr>\n
252<\/td>\nC.2.3 Stimulated Raman scattering (SRS)
Table C.1 \u2013 Disturbance parameter of Raman crosstalk <\/td>\n<\/tr>\n
253<\/td>\nFigure C.4 \u2013 Interference between two wavelengths
Figure C.5 \u2013 Simulation of SRS (OLT transmission power versus D\/U) <\/td>\n<\/tr>\n
254<\/td>\nFigure C.6 \u2013 Simulation of SRS (D\/U in arbitrary unit versus fibre length)
Figure C.7 \u2013 Fibre length of the first peak of SRS D\/U versus frequency <\/td>\n<\/tr>\n
255<\/td>\nC.2.4 Self-phase modulation (SPM)
C.2.5 Cross-phase modulation (XPM)
Figure C.8 \u2013 GE-PON idle pattern spectrum (ISO\/IEC\/IEEE 8802-3:2017 1 000 Base\u2011PX)(62,5 MHz = 1 250 Mbps\/20 bit) <\/td>\n<\/tr>\n
256<\/td>\nAnnex D (informative)Measurement of parameters (R, Id0, Ieq and G)required for RIN calculation
D.1 Measurement of the responsivity (R)
D.2 Measurement of dark current (Id0)
D.3 Measurement of equivalent noise current density (Ieq) <\/td>\n<\/tr>\n
257<\/td>\nD.4 Measurement of gain (G)
Figure D.1 \u2013 Measurement of gain (G) <\/td>\n<\/tr>\n
258<\/td>\nAnnex E (informative)Measurement of peak and average signal levelsof digitally modulated signals
E.1 General
E.2 Peak and average power measurement using CCDF <\/td>\n<\/tr>\n
259<\/td>\nFigure E.1 \u2013 Typical CCDF curves for OFDM and M-QAM signals <\/td>\n<\/tr>\n
260<\/td>\nE.3 Measurement method of CCDF
E.3.1 General
E.3.2 Measurement procedure
Figure E.2 \u2013 CCDF measurement setup <\/td>\n<\/tr>\n
261<\/td>\nE.3.3 Estimation of BER from the CCDF measurement result
Figure E.3 \u2013 CCDF measurement example <\/td>\n<\/tr>\n
262<\/td>\nE.3.4 Examples of CCDF measurements
Figure E.4 \u2013 SER vs SINR performance in an AWGN channel
Figure E.5 \u2013 Example of CCDF measurements <\/td>\n<\/tr>\n
263<\/td>\nE.4 Performance evaluation of the FTTH system
E.4.1 General
E.4.2 Evaluation procedure
Figure E.6 \u2013 Performance evaluation of digital optical signals in the FTTH system
Figure E.7 \u2013 CCDF measurement bandwidth <\/td>\n<\/tr>\n
264<\/td>\nE.5 Potential sources of error <\/td>\n<\/tr>\n
265<\/td>\nAnnex F (informative)Clipping noise
Figure F.1 \u2013 Clipping effects in laser diode static curve (IL curve)
Figure F.2 \u2013 Clipping noise, zero span, sweep time 100 \u00b5s <\/td>\n<\/tr>\n
266<\/td>\nAnnex G (informative)Relation between SINR degradation and rain attenuation
G.1 Relation between SINR and G\/T <\/td>\n<\/tr>\n
268<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Cable networks for television signals, sound signals and interactive services – Optical systems for broadcast signal transmissions loaded with digital channels only<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n270<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":439498,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[612,2641],"product_tag":[],"class_list":{"0":"post-439491","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-060-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/439491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/439498"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=439491"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=439491"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=439491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}