{"id":228705,"date":"2024-10-19T14:52:19","date_gmt":"2024-10-19T14:52:19","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-60728-102014\/"},"modified":"2024-10-25T08:58:17","modified_gmt":"2024-10-25T08:58:17","slug":"bs-en-60728-102014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-60728-102014\/","title":{"rendered":"BS EN 60728-10:2014"},"content":{"rendered":"

IEC 60728-10:2014 specifies the transparent return path of cable networks operated in the frequency range between 5 MHz and 85 MHz or parts thereof. The upper frequency limit of the return path is reduced to 65 MHz where FM radio signals are transmitted in a cable network. Higher frequencies may be used in fibre based networks. This third edition cancels and replaces the second edition published in 2005 and constitutes a technical revision. It includes the following changes: – update on the state-of-the-art of return path transmission in cable networks; – provisions for DOCSIS 3.0 and EuroDOCSIS 3.0 transmission standards; – revision of subclause 4.3 on measurement of channel level; – new subclause 4.12 for method of measurement of noise power ratio (NPR) on return paths; – new subclause 4.13 for 10-tone measurements; – new subclause 4.14 for method of measurement of modulation error ratio (MER); – revision of subclause 5.2 on analogue parameters influencing system performance.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
11<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
12<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
13<\/td>\n3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions <\/td>\n<\/tr>\n
16<\/td>\n3.2 Symbols <\/td>\n<\/tr>\n
17<\/td>\n3.3 Abbreviations
4 Methods of measurement
4.1 General <\/td>\n<\/tr>\n
18<\/td>\n4.2 Set-up of the network
4.3 Measurement of channel level
4.3.1 General
4.3.2 Equipment required
Figures
Figure 1 \u2013 Reference points of an active return path system (example) <\/td>\n<\/tr>\n
19<\/td>\n4.3.3 Connection of the equipment
4.3.4 Measurement procedure for digitally modulated carriers
Tables
Table 1 \u2013 Examples of the Nyquist bandwidth of digitally modulated carriers <\/td>\n<\/tr>\n
20<\/td>\n4.3.5 Measurement procedure for intermittent digitally modulated carriers
Figure 2 \u2013 Time domain representation of an upstream burst with marker on the preamble of the DOCSIS signal <\/td>\n<\/tr>\n
21<\/td>\n4.3.6 Presentation of the results
4.4 Measurement of amplitude response variation
4.4.1 Background
4.4.2 Equipment required
4.4.3 Connection of the equipment
4.4.4 Calibration of equipment
Figure 3 \u2013 Arrangement of test equipment for measurement of amplitude response variation <\/td>\n<\/tr>\n
22<\/td>\n4.4.5 Method of measurement
4.4.6 Presentation of the results
4.5 Measurement of signal to noise ratio (SD,RF\/N)
4.5.1 General
4.5.2 Equipment required
4.5.3 Connection of the equipment
4.5.4 Measurement procedure <\/td>\n<\/tr>\n
23<\/td>\n4.5.5 Presentation of the results
4.6 Measurement of multiple interference
4.6.1 General <\/td>\n<\/tr>\n
24<\/td>\n4.6.2 Equipment required
4.6.3 Connection of the equipment
4.6.4 Measurement procedure
4.6.5 Processing of the data
4.6.6 Presentation of the results <\/td>\n<\/tr>\n
25<\/td>\n4.7 Measurement of impulse noise
4.7.1 General
4.7.2 Equipment required
4.7.3 Connection of the equipment
4.7.4 Measurement procedure <\/td>\n<\/tr>\n
26<\/td>\n4.7.5 Processing of the data and presentation of the results
4.8 Measurement of echo ratio
4.8.1 General <\/td>\n<\/tr>\n
27<\/td>\n4.8.2 Equipment required
Figure 4\u00a0\u2212\u00a0Echo rating graticule <\/td>\n<\/tr>\n
28<\/td>\n4.8.3 Connection of the equipment
4.8.4 Measurement procedure
4.8.5 Presentation of the results
4.9 Measurement of group delay variation
Figure 5 \u2013 Arrangement of test equipment for measurement of echo ratio <\/td>\n<\/tr>\n
29<\/td>\n4.10 Measurement of frequency error
4.10.1 General
4.10.2 Equipment required
4.10.3 Connection of the equipment
4.10.4 Measurement procedure
Figure 6 \u2013 Test set-up for frequency stability measurement <\/td>\n<\/tr>\n
30<\/td>\n4.10.5 Presentation of the result
4.11 Measurement of bit error ratio (BER)
4.11.1 General
4.11.2 Equipment required
Figure 7 \u2013 Principle of BER measurement <\/td>\n<\/tr>\n
31<\/td>\n4.11.3 Connection of the equipment
4.11.4 Measurement procedure
4.11.5 Presentation of the results
4.12 Noise power ratio (NPR) measurement on return path
4.12.1 General <\/td>\n<\/tr>\n
32<\/td>\n4.12.2 Equipment required
4.12.3 Connection of the equipment
Figure 8 \u2013 Band-pass and band-stop filters response
Table 2 \u2013 Band-stop filter notch frequencies <\/td>\n<\/tr>\n
33<\/td>\n4.12.4 Measurement procedure
Figure 9 \u2013 NPR test set up <\/td>\n<\/tr>\n
34<\/td>\n4.12.5 Presentation of the results
4.12.6 Recommended correction factors
Figure 10 \u2013 NPR versus RF power density applied at input of optical transmitter and determination of OMI 100\u00a0%
Figure 11 \u2013 Example of the frequency response of the optional band-pass filter <\/td>\n<\/tr>\n
35<\/td>\n4.12.7 Precautions during measurement
4.12.8 NPR dynamic range <\/td>\n<\/tr>\n
36<\/td>\n4.13 10-Tone measurement
4.13.1 General
Figure 12 \u2013\u00a0Example of NPR dynamic range
Figure 13 \u2013\u00a0Dynamic range plotted versus NPR <\/td>\n<\/tr>\n
37<\/td>\n4.13.2 Measurement principle
4.13.3 Measurement procedure
Figure 14 \u2013\u00a0Alternative NPR measurement principle <\/td>\n<\/tr>\n
38<\/td>\n4.14 Modulation error ratio (MER) measurement on return path
4.14.1 General
Figure 15 \u2013\u00a0Relationship between classical NPR method and multi-tone method <\/td>\n<\/tr>\n
39<\/td>\n4.14.2 Equipment required
4.14.3 Connection of the equipment
4.14.4 Measurement procedure
Figure 16 \u2013 Test set-up for modulation error ratio (MER) measurement <\/td>\n<\/tr>\n
40<\/td>\n4.14.5 Presentation of the results
5 System performance requirements
5.1 General
Figure 17 \u2013 Example of constellation diagram for a 64QAM modulation format <\/td>\n<\/tr>\n
41<\/td>\nFigure 18 \u2013 Return path signals affecting forward path signals <\/td>\n<\/tr>\n
42<\/td>\nFigure 19 \u2013 Forward path signals affecting return path signals
Figure 20 \u2013 Return path signals of service 1 affecting return path signals of a different service (e.g. service 2)
Figure 21 \u2013 Return path signals of a specific service (e.g. service 2) affecting return path signals of the same service <\/td>\n<\/tr>\n
43<\/td>\n5.2 Analogue parameters that influence the system performance <\/td>\n<\/tr>\n
44<\/td>\nTable 3 \u2013 Summary of the requirements for MER according to ETSI EN 302 878-2, V.1.1.1 (2011-11), (clause 6.2.22.3.2) <\/td>\n<\/tr>\n
45<\/td>\n5.3 General requirements
5.3.1 Impedance
5.3.2 Maximum signal level
5.4 Specific system performance requirements <\/td>\n<\/tr>\n
46<\/td>\nTable 4 \u2013 System performance requirementsfor different modulation techniques for BER = 10\u20134 <\/td>\n<\/tr>\n
47<\/td>\nTable 5\u00a0\u2013\u00a0Comparison of system performance parameters given in Table 4 with those given in ETSI EN 302 878-2, V.1.1.1 (2011-11), specifications <\/td>\n<\/tr>\n
48<\/td>\n6 System performance recommendations \u2013 Return path bandwidth
6.1 Frequency allocation
6.2 Transmission quality in the return path frequency ranges
Table 6 \u2013 Return path frequency ranges
Table 7 \u2013 Reasons for quality reduction in sub-bands of the return path <\/td>\n<\/tr>\n
49<\/td>\nFigure 22 \u2013 Identification of the most common sub-bands within the return path band with limited transmission quality <\/td>\n<\/tr>\n
50<\/td>\nAnnex A (normative) Correction factors for noise
Table\u00a0A.1 \u2013 Noise correction factor <\/td>\n<\/tr>\n
51<\/td>\nFigure A.1 \u2013 Noise correction factor CFversus measured level difference D <\/td>\n<\/tr>\n
52<\/td>\nAnnex B (normative) Correction factor for a spectrum analyser <\/td>\n<\/tr>\n
53<\/td>\nAnnex C (normative) Null packet and PRBS definitions <\/td>\n<\/tr>\n
54<\/td>\nTable C.1 \u2013 Null transport stream packet definition <\/td>\n<\/tr>\n
55<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Cable networks for television signals, sound signals and interactive services – System performance for return paths<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2014<\/td>\n58<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":228709,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[612,2641],"product_tag":[],"class_list":{"0":"post-228705","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\/228705","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\/228709"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=228705"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=228705"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=228705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}