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BS EN IEC 60728-115:2022

BS EN IEC 60728-115:2022

$215.11

Cable networks for television signals, sound signals and interactive services – In-building optical systems for broadcast signal transmissions (IEC 60728-115:2022)

Published By Publication Date Number of Pages
BSI 2022 72
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This part of IEC 60728 is applicable to in-building optical transmission systems for broadcast signal transmission that consist of optical transmitter, optical amplifiers, splitters, V-ONUs, etc. 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 in-building optical distribution systems between building network interface (BNI) and home network interface (HNI) in order to assess the system performance and its performance limits. This document is also applicable to broadcast signal transmission using a telecommunication network if it satisfies the requirements of optical section of this document. This document describes RF transmission for fully digitalized broadcast and narrowcast (limited area distribution of broadcast) signals over an FTTH network 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 optical network, thus, it does not include IP transport technologies, such as IP Multicast and associate protocols. This standard specifies the required system performance of all-optical building networks in order to connect with FTTH networks which are defined by IEC60728-113 and IEC60728-13-1. Use of In-building optical networks is very effective for saving cost (installation and maintenance) and enabling future network up-grades, especially in huge apartment buildings. In this document, the optical wavelengths and electrical frequency bands listed in Table 1 – and Table 2 – are considered to be used. [Table 1 and Table 2]

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
13 FOREWORD
15 1 Scope
2 Normative references
16 3 Terms, definitions, graphical symbols and abbreviated terms
3.1 Terms and definitions
18 Tables
Table 1 – Signal level
20 3.2 Graphical symbols
21 3.3 Abbreviated terms
22 4 In-building optical system reference model
4.1 General
Table 2 – Optical wavelength for FTTH systems
23 4.2 Over-all FTTH system reference model
4.3 Individual reference model
Table 3 – Frequency ranges
24 Figures
Figure 1 – Example of the FTTH system for television and sound signals (IEC 60728‑113)
25 Figure 2 – Type A reception and re-transmission
Figure 3 – Type B reception and re-transmission
Figure 4 – Type C reception and re-transmission
Figure 5 – Type D reception and re-transmission
26 5 Methods of measurement
5.1 Measuring points and items
5.1.1 General
5.1.2 Measuring points
5.1.3 Measured parameters
Figure 6 – Measuring points for type A, B, C and D.
27 5.2 General measurement requirements
5.2.1 Input specification
5.2.2 Standard measurement conditions
5.2.3 Precautions for measurements
5.3 Optical power
5.3.1 General
5.3.2 Measurement of the optical power at a single wavelength
5.3.3 Measurement of the optical power of a WDM signal
28 5.3.4 Presentation of the results
5.4 Optical wavelength
5.4.1 General
5.4.2 Method of measurement
5.4.3 Presentation of the results
5.5 Relative intensity noise (RIN) of optical signal
5.5.1 General
Figure 7 – Measurement setup for optical power measurement using a WDM filter
Figure 8 – Measurement setup for optical power measurement using a WDM coupler
29 5.5.2 Method of measurement
5.5.3 Presentation of the results
5.6 SINR (signal-to-intermodulation and noise ratio) less than 1 GHz
5.6.1 General
5.6.2 Measurement setup
5.6.3 Measuring method
5.6.4 Presentation of the results
5.7 System BER
5.7.1 General
Figure 9 – Measurement setup for RF signal-to-intermodulation and noise ratio
30 5.7.2 Measurement setup
5.7.3 Measurement method
5.7.4 Presentation of the results
5.8 System loss budget
5.8.1 General
5.8.2 Measurement method
5.8.3 Calculation of loss budget
Figure 10 – Setup for BER measurement
31 5.8.4 Basic configuration
Table 4 – Number of splits and insertion loss of optical coupler (example)
Table 5 – Example of optical loss
32 5.8.5 Presentation of the results
5.9 In-band frequency characteristics between optical transmitter and V-ONU
5.9.1 General
5.9.2 Measurement setup
5.9.3 Measuring method
Figure 11 – Basic configuration of an in-building optical system
33 5.9.4 Presentation of the results
5.10 SINR (signal-to-intermodulation and noise ratio) of satellite broadcast signals
5.10.1 General
Figure 12 – Setup for the measurement of in-band frequency characteristics
Figure 13 – Measurement example of in-band frequency characteristics
34 5.10.2 Measurement setup
5.10.3 Equipment required
5.10.4 Measurement procedure
Figure 14 – Setup for the measurement of SINR for satellite broadcast signals
35 5.10.5 Presentation of results
5.11 SINR versus BER
5.11.1 General
5.11.2 Measurement setup
5.11.3 Equipment required
Figure 15 – Setup for BER versus SINR measurement
36 5.11.4 Measurement procedure
Figure 16 – Extrapolation method of BER measurement
37 5.11.5 Measurement of result
Figure 17 – Example of BER versus SINR characteristics
38 5.12 Modulation error ratio (MER)
5.12.1 General
5.12.2 Connection of the equipment
5.12.3 Measurement procedure
5.12.4 Presentation of the results
Figure 18 – Setup for MER measurement
39 6 Simplified measurement method for system introduction and maintenance
6.1 General
Figure 19 – Example of result of MER measurement (64 QAM modulation format)
40 6.2 Requirements for simplified measurement
6.2.1 General
6.2.2 Measurement conditions
Table 6 – Measurement items for simplified signal measurement
41 6.2.3 Measurement requirements
6.3 Measurement tools
6.4 An estimation of equivalent SINR by MER
6.4.1 General
6.4.2 Relationship between SINR and MER
Figure 20 – Example of a simplified signal measurement setup
42 6.4.3 Note for using handheld MER measurement device
7 Specification of in-building optical systems for digital broadcast signal transmission
7.1 General
Figure 21 – Relationship between MER and SINR
43 7.2 Specified performance points and parameters to be measured for type A
7.2.1 Overview
7.2.2 Optical power specification for type A
Figure 22 – Performance specified points for type A
Table 7 – Measuring points and parameters to be measured for type A
Table 8 – Optical power specification for type A
44 7.2.3 Optical wavelength specification for type A
7.2.4 RIN specification for type A
7.2.5 SINR specification for type A
7.2.6 BER specification for type A
7.2.7 MER of signal for type A
Table 9 – Optical wavelength specification for type A
Table 10 – RIN specification for type A
Table 11 – SINR specification for type A
Table 12 – BER specification for type A
45 7.2.8 System loss budget for type A
7.2.9 In-band frequency characteristics for type A
7.2.10 RF/IF signal level for type A
7.3 Performance specified points and parameters to be measured for type B
7.3.1 Overview
Table 13 – MER of signal for type A
Table 14 – System loss budget specification for type A
Table 15 – In-band frequency characteristics specification for type A
Table 16 – RF/IF signal level specification for type A
46 7.3.2 Optical power specification for type B
7.3.3 Optical wavelength specification for type B
Figure 23 – Performance specified points for type B
Table 17 – Measuring points and parameters to be measured for type B
Table 18 – Optical power specification for type B
47 7.3.4 RIN specification for type B
7.3.5 SINR specification for type B
7.3.6 BER specification for type B
7.3.7 MER of signal for type B
Table 19 – Optical wavelength specification for type B
Table 20 – RIN specification for type B
Table 21 – SINR specification for type B
Table 22 – BER specification for type B
48 7.3.8 System loss budget for type B
7.3.9 In-band frequency characteristics for type B
7.3.10 RF/IF signal specification level for type B
7.4 Performance specified points and parameters to be measured for type C
7.4.1 Overview
Table 23 – MER of signal for type B
Table 24 – System loss budget specification for type B
Table 25 – In-band frequency characteristics for type B
Table 26 – RF/IF signal level specification for type B
49 7.4.2 Optical power specification for type C
Figure 24 – Performance specified points for type C
Table 27 – Measuring points and parameters to be measured for type C
Table 28 – Optical power specification for type C
50 7.4.3 Optical wavelength specification for type C
7.4.4 SINR specification for type C
7.4.5 BER specification for type C
7.4.6 MER of signal for type C
Table 29 – Optical wavelength specification for type C
Table 30 – SINR specification for type C
Table 31 – BER specification for type C
Table 32 – MER of signal for type C
51 7.4.7 System loss budget for type C
7.4.8 In-band frequency characteristics for type C
7.4.9 RF/IF signal level specification for type C
7.5 Performance specified points and parameters to be measured for type D
7.5.1 Overview
Figure 25 – Performance specified points for type D
Table 33 – System loss budget specification for type C
Table 34 – In-band frequency characteristics for type C
Table 35 – RF/IF signal level specification for type C
52 7.5.2 Optical power specification for type D
7.5.3 Optical wavelength specification for type D
7.5.4 BER specification for type D
Table 36 – Measuring points and parameters to be measured for type D
Table 37 – Optical power specification for type D
Table 38 – Optical wavelength specification for type D
Table 39 – BER specification for type D
53 7.5.5 MER of signal for type D
7.5.6 System loss budget for type D
7.5.7 RF/IF signal level specification for type D
7.6 Minimum signal performance for in-building systems
7.6.1 General
Table 40 – MER of signal for type D
Table 41 – System loss budget specification for type D
Table 42 – RF/IF signal level specification for type D
54 7.6.2 Minimum MER performance
Table 43 – Minimum MER performance a for in-building systems
55 Annex A (informative)Consideration of the home network interface (HNI)
A.1 General
A.2 Positioning of the HNI in the optical system
Figure A.1 – Two-fibre configuration
56 A.3 Towards a new service
Figure A.2 – One-fibre configuration
57 Annex B (informative)Simplified measurement method
B.1 General
B.2 Measurement features of TV field strength meter
B.2.1 Complete channel status on a single-screen display
B.2.2 Features to confirm picture and sound signal status
Figure B.1 – Example of TV field strength meter
58 B.3 Method of measurement
Figure B.2 – Example of displaying measurement results
Figure B.3 – Example of TV display screen of the TV field strength meter
59 Figure B.4 – Example measurement: adjusting antenna direction
Figure B.5 – Measurement example: display channel list and measurement values
Figure B.6 – Measurement example: display the TV picture
61 Annex C (informative)Simplified in-building RF signal leakage detection system
C.1 General
C.2 Example of simplified in-building RF signal leakage detection
62 C.3 Simplified in-home RF signal leakage detection
Figure C.1 – Example of simplified RF signal leakage detection setup
63 Figure C.2 – Example of in-home RF signal leakage detection
64 Annex D (informative)Optical cable for the in-building systems
D.1 General
D.2 Optical cable for an in-building system
Table D.1 – Optical cable to be used for an in-building system
65 Annex E (informative)Total optical modulation index
E.1 General
E.2 Number of channels and optical modulation index (in the case of Japan)
66 Table E.1 – Number of channels and optical modulation index (in the case of Japan)
67 Annex F (informative)Actual system of in-building optical network (in Japan)
F.1 General
F.2 Loss budget for type A, B and C
68 Figure F.1 – Network configuration and loss budget for type A
69 Figure F.2 – Network configuration and loss budget for type B
70 Figure F.3 – Network configuration and loss budget for type C
71 Bibliography

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BS EN IEC 60728-115:2022
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