SIST EN IEC 60728-113:2019

Cable networks for television signals, sound signals and interactive services - Part 113: Optical systems for broadcast signal transmissions loaded with digital channels only (IEC 60728-113:2018)

This part of IEC 60728 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 at about 1 000 MHz. For systems
requiring more bandwidth, refer to IEC 60728-13-1.
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 optical portion of this document. This document describes RF transmission for
fully digitalized broadcast and narrowcast (limited area distribution of broadcast) signals over
FTTH, and introduces xPON system as a physical layer media. The detailed description of the
physical layer is out of the scope of this document. The scope is limited to RF signal
transmission over FTTH, thus, it does not include IP transport technologies, such as IP
Multicast and associate protocols.
Some interference descriptions between the telecommunication system and the broadcast
system are addressed in Clause 7.

Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 113: Optische Systeme zur Rundfunksignalübertragung bei Vollbelegung mit digitalen Kanälen (IEC 60728-113:2018)

Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs - Partie 113 : Systèmes optiques pour transmissions de signaux radiodiffusés soumis à une charge de porteuses exclusivement numériques (IEC 60728-113:2018)

IEC 60728-113:2018 s'applique aux systèmes de transmission optique pour la transmission de signaux de diffusion, qui se composent de l'équipement de la tête de réseau, des lignes de transmission optique, des câblages internes et des prises d'abonnés. Ces systèmes sont principalement prévus pour la télévision et les signaux sonores utilisant une technologie de transmission numérique. Le présent document spécifie les paramètres de base du système et les méthodes de mesure des systèmes de distribution optique entre l'équipement de la tête de réseau et les prises d'abonnés, afin d'évaluer les performances du système et ses limites de performances.
Dans le présent document, la fréquence supérieure du signal est limitée à 1 000 MHz environ. Se reporter à l'IEC 60728-13-1 pour les systèmes qui exigent davantage de bande passante.
La présente partie de l'IEC 60728 a pour objet la description des spécifications des systèmes des réseaux de desserte par fibre de l'abonné (DFA) pour la transmission de signaux de diffusion à modulation numérique. Le présent document s'applique également à la transmission des signaux de diffusion utilisant un réseau de télécommunication, si celui-ci respecte la portion du présent document consacrée à l'optique. Le présent document décrit la transmission de signaux radiofréquence en tant que signaux de diffusion générale et de diffusion ciblée (distribution de la diffusion dans une zone limitée) entièrement numérisés sur le réseau de desserte par fibre de l'abonné et introduit le système xPON comme support de la couche physique. La description précise de la couche physique ne fait pas partie du domaine d'application du présent document. Le domaine d'application se limitant à la transmission des signaux RF sur les réseaux de desserte par fibre de l'abonné, les technologies de transport par protocole Internet (IP), comme la multidiffusion IP et les protocoles associés, ne sont donc pas incluses.
Certaines descriptions des interférences entre le système de télécommunication et le système de diffusion sont couvertes par l'Article 7.

Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitv - 113. del: Optični sistemi za razpršeno oddajanje signalov z obremenitvami izključno digitaliziranih kanalov (IEC 60728-113:2018)

Ta del standarda IEC 60728 se uporablja za optične sprejemno-oddajne sisteme za razpršeno oddajanje signalov, ki zajemajo opremo glavne sprejemne postaje, optične prenosne vode, notranje napeljave in sistemske izhode. Ti sistemi so namenjeni predvsem televizijskim in zvočnim signalom z uporabo tehnologije digitaliziranega prenosa. Ta dokument določa osnovne sistemske parametre in merilne metode za optične razdelilne sisteme med opremo glavne sprejemne postaje ter sistemskimi izhodi za namene ocenjevanja lastnosti teh sistemov in omejitev njihovega delovanja.
V tem dokumentu je zgornja frekvenca signala omejena na približno 1000 MHz. Za sisteme, ki zahtevajo več pasovne širine, glej IEC 60728-13-1.
Namen tega dela standarda IEC 60728 je opisati sistemske specifikacije omrežij FTTH (z optičnimi vlakni do doma) za digitalno moduliran prenos oddajnih signalov. Ta dokument se uporablja tudi za prenos oddajnih signalov prek telekomunikacijskega omrežja, če izpolnjuje zahteve glede optičnih pogojev v tem dokumentu. Ta dokument opisuje radiofrekvenčni prenos za povsem digitalizirano razpršeno in ozko usmerjeno oddajanje (omejeno območno razdelitev) signalov prek omrežij FTTH ter uvaja sistem xPON kot medij fizične plasti. Podroben opis fizične plasti ne spada na področje uporabe tega dokumenta. Področje uporabe je omejeno na radiofrekvenčni prenos signalov prek omrežij FTTH, zato ne vključuje tehnologij prenosa IP, kot so IP za več prejemnikov in povezani protokoli.
Nekateri opisi motenj med telekomunikacijskim sistemom in oddajnim sistemom so obravnavani v 7. točki.

General Information

• Status: Published
• Publication Date: 04-Apr-2019
• ICS: 33.060.40 - Cabled distribution systems
• Technical Committee: AVM - Audio, video and multimedia systems and equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Nov-2018
• Due Date: 10-Jan-2019
• Completion Date: 05-Apr-2019
• Ref Project: EN IEC 60728-113:2018 - Cable networks for television signals, sound signals and interactive services - Part 113: Optical systems for broadcast signal transmissions loaded with digital channels only

Relations

• Revised: SIST EN IEC 60728-113:2023 - Cable networks for television signals, sound signals and interactive services - Part 113: Optical systems for broadcast signal transmissions loaded with digital channels only (IEC 60728-113:2023)
• Effective Date: 16-Feb-2021
• Corrected By: SIST EN IEC 60728-113:2019/AC:2019 - Cable networks for television signals, sound signals and interactive services - Part 113: Optical systems for broadcast signal transmissions loaded with digital channels only (IEC 60728-113:2018/COR1:2018)
• Effective Date: 11-Dec-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60728-113:2019
01-maj-2019
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GHO2SWLþQLVLVWHPL]DUD]SUãHQRRGGDMDQMHVLJQDORY]REUHPHQLWYDPLL]NOMXþQR
GLJLWDOL]LUDQLKNDQDORY,(&
Cable networks for television signals, sound signals and interactive services - Part 113:
Optical systems for broadcast signal transmissions loaded with digital channels only (IEC
60728-113:2018)
.DEHOQHW]HIU)HUQVHKVLJQDOH7RQVLJQDOHXQGLQWHUDNWLYH'LHQVWH7HLO2SWLVFKH
6\VWHPH]XU5XQGIXQNVLJQDOEHUWUDJXQJEHL9ROOEHOHJXQJPLWGLJLWDOHQ.DQlOHQ
,(&
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion
sonore et services interactifs - Partie 113 : Systèmes optiques pour transmissions de
signaux radiodiffusés soumis à une charge de porteuses exclusivement numériques (IEC
60728-113:2018)
Ta slovenski standard je istoveten z: EN IEC 60728-113:2018
ICS:
33.060.40 Kabelski razdelilni sistemi Cabled distribution systems
SIST EN IEC 60728-113:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60728-113:2019

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SIST EN IEC 60728-113:2019


EUROPEAN STANDARD EN IEC 60728-113

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2018
ICS 33.060.40

English Version
Cable networks for television signals, sound signals and
interactive services - Part 113: Optical systems for broadcast
signal transmissions loaded with digital channels only
(IEC 60728-113:2018)
Réseaux de distribution par câbles pour signaux de télévision, Kabelnetze für Fernsehsignale, Tonsignale und interaktive
signaux de radiodiffusion sonore et services interactifs - Partie Dienste - Teil 113: Optische Systeme zur
113 : Systèmes optiques pour transmissions de signaux Rundfunksignalübertragung bei Vollbelegung mit digitalen
radiodiffusés soumis à une charge de porteuses exclusivement Kanälen
numériques (IEC 60728-113:2018)
(IEC 60728-113:2018)
This European Standard was approved by CENELEC on 2018-08-14. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60728-113:2018 E

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SIST EN IEC 60728-113:2019
EN IEC 60728-113:2018 (E)
European foreword
The text of document 100/3103/FDIS, future edition 1 of IEC 60728-113, prepared by IEC/TC 100
"Audio, video and multimedia systems and equipment" was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN IEC 60728-113:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-05-14
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-08-14
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60728-113:2018 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60068 (series) NOTE Harmonized as EN 60068 (series)
IEC 60728-1-2 NOTE Harmonized as EN 60728-1-2
IEC 60728-3:2017 NOTE Harmonized as EN IEC 60728-3:2018 (not modified)
IEC 60728-5 NOTE Harmonized as EN 60728-5
IEC 60728-10 NOTE Harmonized as EN 60728-10
IEC 60728-11 NOTE Harmonized as EN 60728-11
IEC 60728-13-1 NOTE Harmonized as EN 60728-13-1
IEC 60728-2 NOTE In Europe, EN 50083-2 applies
IEC 60875-1 NOTE Harmonized as EN 60875-1
IEC 61280-1-1 NOTE Harmonized as EN 61280-1-1
IEC 61280-1-3 NOTE Harmonized as EN 61280-1-3
IEC 61280-2-2 NOTE Harmonized as EN 61280-2-2:2012 (not modified)
IEC 61280-2-9 NOTE Harmonized as EN 61280-2-9
IEC 61281-1 NOTE Harmonized as EN IEC 61281-1
IEC 61290-1-2 NOTE Harmonized as EN 61290-1-2
IEC 61290-1-3 NOTE Harmonized as EN 61290-1-3
IEC 61754-13 NOTE Harmonized as EN 61754-13
2

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SIST EN IEC 60728-113:2019
EN IEC 60728-113:2018 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60068-1 2013 Environmental testing - Part 1: General and guidance EN 60068-1 2014
IEC 60728-1 2014 Cable networks for television signals, sound signals EN 60728-1 2014
and interactive services - Part 1: System performance
of forward paths
IEC 60728-6 2011 Cable networks for television signals, sound signals EN 60728-6 2011
and interactive services - Part 6: Optical equipment
IEC/TR 60728-6-1 2006 Cable networks for television signals, sound signals - -
and interactive services - Part 6-1: System guidelines
for analogue optical transmission systems
IEC 60728-101 2016 Cable networks for television signals, sound signals EN 60728-101 2017
and interactive services - Part 101: System
performance of forward paths loaded with digital
channels only
IEC 60825-1 -  Safety of laser products - Part 1: Equipment EN 60825-1 -
classification and requirements
IEC 60825-2 -  Safety of laser products - Part 2: Safety of optical fibre EN 60825-2 -
communication systems (OFCS)
IEC 60825-12 -  Safety of laser products - Part 12: Safety of free space EN 60825-12 -
optical communication systems used for transmission
of information
IEC 61755-1 2005 Fibre optic connector optical interfaces - Part 1: EN 61755-1 2006
Optical interfaces for single mode non-dispersion
shifted fibres - General and guidance
ITU-T -  Optical interfaces for multichannel systems with - -
Recommendation optical amplifiers
G.692
ITU-T -  Spectral grids for WDM applications: CWDM - -
Recommendation wavelength grid
G.694.2
3

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SIST EN IEC 60728-113:2019
EN IEC 60728-113:2018 (E)
ITU-T -  Advanced digital downstream transmission systems - -
Recommendation for television, sound and data services for cable
J.382 distribution
ITU-T -  Digital multi-programme systems for television, sound - -
Recommendation and data services for cable distribution
J.83

4

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SIST EN IEC 60728-113:2019




IEC 60728-113

®


Edition 1.0 2018-07




INTERNATIONAL



STANDARD








colour

inside










Cable networks for television signals, sound signals and interactive services –

Part 113: Optical systems for broadcast signal transmissions loaded with digital

channels only


























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.060.40 ISBN 978-2-8322-5844-6




  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN IEC 60728-113:2019
– 2 – IEC 60728-113:2018 © IEC 2018
CONTENTS
CONTENTS . 2
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, graphical symbols and abbreviated terms . 11
3.1 Terms and definitions. 11
3.2 Graphical symbols . 16
3.3 Abbreviated terms . 17
4 Optical system reference model . 19
5 Preparation of measurement . 22
5.1 Environmental conditions . 22
5.1.1 Standard measurement conditions . 22
5.1.2 Temperature and humidity . 22
5.1.3 Setting up the measuring setup and system under test . 22
5.1.4 AGC/ALC operation . 22
5.1.5 Impedance matching between pieces of equipment . 22
5.1.6 Standard operating condition . 22
5.1.7 Standard signal and measuring equipment . 23
6 Methods of measurement . 23
6.1.1 General . 23
6.1.2 Measuring points . 23
6.1.3 Measured parameters . 23
6.2.1 Introduction . 25
6.2.2 Measuring setup . 25
6.2.3 Measuring method . 25
6.2.4 Precautions for measurement . 26
6.2.5 Presentation of the results . 26
6.3.1 General . 26
6.3.2 Measuring setup . 26
6.3.3 Measuring conditions . 27
6.3.4 Precautions for measurement . 27
6.3.5 Presentation of the results . 28
6.4.1 General . 28
6.4.2 Measuring setup . 28
6.4.3 Measurement conditions . 29
6.4.4 System RIN measuring method . 29
6.4.5 S/N calculation based on RIN value . 30
6.4.6 Component RIN calculation . 31
6.4.7 Example for calculating signal-to-noise ratio S/N . 32

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SIST EN IEC 60728-113:2019
IEC 60728-113:2018 © IEC 2018 – 3 –
6.6.1 General . 33
6.6.2 Equipment required . 33
6.6.3 General measurement requirements . 34
6.6.4 Procedure . 34
6.6.5 Potential sources of error . 35
6.6.6 Presentation of the results . 35
6.7.1 General . 35
6.7.2 Equipment required . 35
6.7.3 Connection of the equipment . 36
6.7.4 Measurement procedure . 36
6.7.5 Presentation of the results . 37
6.8.1 General . 37
6.8.2 Connection of the equipment . 37
6.8.3 Measurement procedure . 38
6.8.4 Presentation of the results . 38
6.9.1 General . 38
6.9.2 Connection of the equipment . 38
6.9.3 Measurement procedure . 39
6.9.4 Presentation of the results . 39
6.10.1 General . 40
6.10.2 Connection of the equipment . 40
6.10.3 Measurement procedure . 41
6.10.4 Presentation of the results . 41
6.11.1 General . 42
6.11.2 Connection of the equipment . 42
6.11.3 Measurement procedure . 43
6.11.4 Presentation of the results . 43
7 Specification of the optical system for broadcast signal transmission . 43
Annex A (informative) Actual service systems and design considerations . 58

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SIST EN IEC 60728-113:2019
– 4 – IEC 60728-113:2018 © IEC 2018
A.2.1 General . 58
A.2.2 Operating conditions . 59
A.2.3 Operating environment . 59
A.3.1 General . 60
A.3.2 Operating conditions . 60
A.3.3 Operating environment . 61
A.5.1 Optimum operation . 65
A.5.2 Key issues to be specified . 66
Annex B (informative) BER extrapolation method . 67
Annex C (informative) Optical system degradations . 69
C.2.1 Degradation factors . 70
C.2.2 Stimulated Brillouin scattering (SBS) . 70
C.2.3 Stimulated Raman scattering (SRS) . 71
C.2.4 Self-phase modulation (SPM) . 74
C.2.5 Cross-phase modulation (XPM) . 74
Annex D (informative) Measurement of parameters (R, I , I and G) required for
d0 eq
RIN calculation . 75
D.1 Measurement of the responsivity (R) .
D.2 Measurement of dark current (I ) . 75
do
D.3 Measurement of equivalent noise current density (I ) . 75
eq
D.4 Measurement of gain (G) . 76
Annex E (informative) Measurement of peak and average signal levels of digitally
modulated signals. 77
E.3.1 General . 79
E.3.2 Measurement procedure . 79
E.3.3 Estimation of BER from the CCDF measurement result. 79
E.3.4 Examples of CCDF measurements . 81
E.4.1 General . 82
E.4.2 Evaluation procedure . 82
Annex F (informative) Clipping noise . 84
Bibliography . 85

Figure 1 – Example of FTTH system for television and sound signal . 21
Figure 2 – Points of performance specification of the FTTH system . 22
Figure 3 – Typical optical video distribution system. 24
Figure 4 – Test set-up for optical power measurement using a wavelength filter . 25
Figure 5 – Test set-up for optical power measurement using a WDM coupler . 25

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SIST EN IEC 60728-113:2019
IEC 60728-113:2018 © IEC 2018 – 5 –
Figure 6 – Test setup for RF signal to intermodulation and noise ratio measurement . 27
Figure 7 – Measuring points in the optical cable TV network . 28
Figure 8 – Test setup for RIN measurement . 29
Figure 9 – Test setup for signal to crosstalk measurement . 34
Figure 10 – Test setup for BER measurement . 38
Figure 11 – Test setup for BER versus S/N measurement . 38
Figure 12 – Extrapolation method of BER measurement . 39
Figure 13 – Example of BER versus S/N characteristics . 40
Figure 14 – Test setup for system noise margin measurement . 41
Figure 15 – Example of system noise margin characteristics . 42
Figure 16 – Test setup for MER measurement . 42
Figure 17 – Example of result of MER measurement (64 QAM modulation format) . 43
Figure 18 – Performance specified points . 44
Figure 19 – Permissible signal level of adjacent channels (in the case of Japan) . 50
Figure 20 – Section S/N for MDU wiring (specified by electrical signal) . 52
Figure 21 – Section S/N for MDU wiring (specified by optical signal) . 52
rd
Figure 22 – Signal level difference with 3 order interference signal (ISDB-T) . 53
Figure 23 – Level difference between signal and reflected (echo) signal (ISDB-T) . 54
rd
Figure 24 – Signal level difference with 3 order interference signal (ISDB-C 64 QAM) . 54
rd
Figure 25 – Signal level difference with 3 order interference signal (ISDB-C 256 QAM) . 55
Figure 26 – Level difference between signal and reflected (echo) signal (ISDB-C 64
QAM, ISDB-C2 256 QAM to 4 096 QAM). 55
Figure 27 – Level difference between signal and reflected (echo) signal (ISDB-C 256
QAM) . 56
Figure A.1 – Example of a multi-channel service system of one million terminals . 58
Figure A.2 – Example of a multi-channel service system of 2 000 terminals . 59
Figure A.3 – Example of re-transmission service system of 72 terminals . 60
Figure A.4 – Example of re-transmission service system of 144 terminals . 60
Figure A.5 – Model 1 system performance calculation. 64
Figure A.6 – Model 4 system performance calculationHints for actual operation . 65
Figure B.1 – Extrapolation method of BER measurement . 67
Figure B.2 – BER characteristics for 256 QAM, 1 024 QAM and 4 096 QAM
(Extrapolation method) . 68
Figure C.1 – Reflection model . 69
Figure C.2 – Degradation factors of optical transmission system . 70
Figure C.3 – SBS generation image . 70
Figure C.4 – Interference between two wavelengths . 72
Figure C.5 – Simulation of SRS (OLT transmission power versus D/U) . 72
Figure C.6 – Simulation of SRS (D/U in arbitrary unit versus fibre length) . 73
Figure C.7 – Fibre length of the first peak of SRS D/U versus frequency . 73
Figure C.8 – GE-PON idle pattern spectrum (ISO/IEC/IEEE 8802-3:2017 1 000 Base-
PX) (62,5 MHz = 1 250 Mbps/20 bit) . 74
Figure D.1 – Measurement of gain (G) . 76
Figure E.1 – Typical CCDF curves for OFDM and M-QAM signals . 78

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SIST EN IEC 60728-113:2019
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Figure E.2 – CCDF measurement setup . 79
Figure E.3 – CCDF measurement example . 80
Figure E.4 – SER vs S/N performance in an AWGN channel . 81
Figure E.5 – Example of CCDF measurements . 81
Figure E.6 – Performance evaluation of digital optical signals in the FTTH system . 82
Figure E.7 – CCDF measurement bandwidth . 82
Figure F.1 – Clipping effects in laser diode static curve (IL curve). 84
Figure F.2 – Clipping noise, zero span, sweeping time is 100 µs. 84

Table 1 – Level of RF signals . 14
Table 2 – Optical wavelength for FTTH system . 19
Table 3 – Frequency range . 20
Table 4 – Measuring instruments . 23
Table 5 – Measuring points and measured parameters . 24
Table 6 – Parameters used for the calculation of signal-to-noise ratio (S/N) . 32
Table 7 – RF signal noise bandwidth . 37
Table 8 – Minimum S/N ratio (SDU case) . 44
Table 9 – Minimum S/N ratio (MDU case) . 45
Table 10 – Minimum RF signal to noise ratio requirements in operation . 46
Table 11 – Types of broadcast services and relative carrier level . 48
Table 12 – Type of service and minimum operational RIN values . 48
Table 13 – Section S/N ratio for in-house/in-building wiring (Japan) . 51
Table 14 – Limits for in-channel electrical signal interference . 53
Table 15 – Interference level due to fibre non-linearity . 57
Table 16 – Environmental conditions . 57
Table A.1 – Operating conditions of a multi-channel service system . 59
Table A.2 – Operating conditions of re-transmission service system .
...