BS EN 60728-7-1-2005 Cable networks for television signals sound signals and interactive services - Hybrid fibre coax outside plant status monitoring - Physical (PHY) layer specifi.pdf
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1、BRITISH STANDARD BS EN 60728-7-1:2005 Cable networks for television signals, sound signals and interactive services Part 7-1: Hybrid Fibre Coax Outside Plant Status Monitoring Physical (PHY) Layer Specification The European Standard EN 60728-7-1:2005 has the status of a British Standard ICS 35.100.1
2、0; 33.160; 33.040 BS EN 60728-7-1:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 March 2005 BSI 16 March 2005 ISBN 0 580 45598 X National foreword This British Standard is the official English language version of EN 60728-7-1:2005. I
3、t is identical with IEC 60728-7-1:2003. The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems and equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its se
4、cretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Cat
5、alogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand
6、 the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a f
7、ront cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60728-7-1 NORME
8、EUROPENNE EUROPISCHE NORM February 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitatio
9、n in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60728-7-1:2005 E ICS 35.100.10; 33.160; 33.040 English version Cable networks for television signals, sound signals and interactive services Part 7-1: Hybrid Fibre Coax Outside Plant Status Monitoring Physical (PHY) L
10、ayer Specification (IEC 60728-7-1:2003) Rseaux de distribution par cbles pour signaux de tlvision, signaux de radiodiffusion sonore et services interactifs Partie 7-1: Surveillance de ltat des installations extrieures des rseaux hybrides fibre optique et cble coaxial - Spcification de la couche phys
11、ique (CEI 60728-7-1:2003) Kabelnetze fr Fernsehsignale, Tonsignale und interaktive Dienste Teil 7-1: Zustandsberwachung Hybrid- Faser-Koax-Netze (HFC) Festlegung Bitbertragungsschicht (PHY) (IEC 60728-7-1:2003) This European Standard was approved by CENELEC on 2004-12-01. CENELEC members are bound t
12、o 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 Centr
13、al Secretariat or to any CENELEC member. This European Standard exists in one official version (English). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official
14、 versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia,
15、Spain, Sweden, Switzerland and United Kingdom. Foreword The text of the International Standard IEC 60728-7-1:2003, prepared by technical area 5: Cable networks for television signals, sound signals and interactive services, of IEC TC 100, Audio, video and multimedia systems and equipment, was submit
16、ted to the formal vote and was approved by CENELEC as EN 60728-7-1 on 2004-12-01 without any modification. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-12-01 latest da
17、te by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-12-01 _ Endorsement notice The text of the International Standard IEC 60728-7-1:2003 was approved by CENELEC as a European Standard without any modification. _ Page2 EN6072871:2005CONTENTS INTRODUCTION.4 1 Sco
18、pe.5 2 Normative references.6 3 Terms, definitions and abbreviations 6 3.10 Abbreviated terms.7 4 HMS reference architecture forward and return channel specifications .8 4.1 HMS specification documents8 4.2 Functional assumptions.9 5 Physical layer specification.9 5.1 Separate forward and return cha
19、nnels.9 5.2 Single forward and return path channels .10 5.3 Byte-based transmission.10 5.4 Byte formats and transmission order .10 5.5 Packet-based transmission10 5.6 Duplex operation.10 5.7 Forward and return channel specifications.10 5.8 Media access control layer interface17 5.9 RF cut-off17 Bibl
20、iography18 Figure 1 HMS Reference architecture diagram.8 Figure 2 Bit transmission order 10 Table 1 Transponder type classifications .5 Table 2 HMS document family .8 Table 3 Spectral limits by geographical area9 Table 4 HMS PHY channel RF and modulation specifications 11 Page3 EN6072871:2005 INTROD
21、UCTION Standards of the IEC 60728 series deal with cable networks for television signals, sound signals and interactive services including equipment, systems and installations for head-end reception, processing and distribution of television and sound signals and their associated data signals, and p
22、rocessing, interfacing and transmitting all kinds of signals for interactive services using all applicable transmission media. All kinds of networks like CATV-networks, MATV-networks and SMATV-networks, individual receiving networks and all kinds of equipment, systems and installations installed in
23、such networks, are within this scope. The extent of this standardization work is from the antennas, special signal source inputs to the head-end or other interface points to the network up to the system outlet or the terminal input, where no system outlet exists. The standardization of any user term
24、inals (i.e. tuners, receivers, decoders, multimedia terminals, etc.) as well as of any coaxial and optical cables and accessories therefore is excluded. Page4 EN6072871:2005CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES Part 7-1: Hybrid Fibre Coax Outside Plant status
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