1、BRITISH STANDARD BS EN 50201:2001 Interfaces for DVB-IRD The European Standard EN 50201:2001 has the status of a British Standard ICS 33.160.20 BS EN 50201:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published
2、 under the authority of the Standards Policy and Strategy Committee on 7 August 2002 BSI 7 August 2002 ISBN 0 580 40231 2 National foreword This British Standard is the official English language version of EN 50201:2001. It supersedes BS EN 50201:1999 which is withdrawn. The UK participation in its
3、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 secretary. Cross-references The British Standards which implement inte
4、rnational 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 Catalogue or of British Standards Online. This publication does not pur
5、port 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 the text; present to the responsible international/European committ
6、ee 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 front cover, an inside front cover, the EN title page, pages 2 to 24,
7、 an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50201 NORME EUROPENNE EUROPISCHE NORM December 2001 CENELEC European Committee for Ele
8、ctrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref
9、. No. EN 50201:2001 E ICS 33.160.20 Supersedes EN 50201:1998 English version Interfaces for DVB-IRD Interfaces pour dcodeur DVB intgr Schnittstellen fr DVB-IRD This European Standard was approved by CENELEC on 2000-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
10、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 Central Secretariat or to any CENELEC member. This Europ
11、ean 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 Central Secretariat has the same status as the official versions. CENELEC members are t
12、he national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50201:2001 - 2 - Contents Foreword. 3 1 Scope. 4 2 Norma
13、tive references 4 3 Definitions and abbreviations 5 4 Interface requirements for DVB-IRDs. 6 4.1 RF input in the satellite IF range 6 4.2 RF I/O in the VHF/UHF range 7 4.3 Modem interface 7 4.4 Video signals 9 4.5 Audio signals 9 4.6 Data signals . 10 4.7 Physical interfaces for Control signals 14 4
14、.8 Interface for detachable common access module. 14 4.9 Connectors. 14 Annex A (informative) Configuration examples . 16 Annex B (informative) CATV Channel assignments 24- 3 - EN 50201:2001 Foreword This European Standard was prepared by the DVB-TM Ad hoc group on Physical Interfaces, together with
15、 the former Technical Committee CENELEC TC 203, Electronic entertainment and educational systems for household and similar use (in July 1998, TC 203 has become part of TC 206, Consumer equipment for entertainment and information and related sub-systems). The text of the draft was submitted to the Un
16、ique Acceptance Procedure and was approved by CENELEC as EN 50201 on 2000-04-01. This European Standard supersedes EN 50201:1998. 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 (
17、dop) 2002-07-01 - latest date by which national standards conflicting with the EN have to be withdrawn (dow) 2003-04-01 Annexes designated “informative“ are given for information only. In this standard, annexes A and B are informative. _EN 50201:2001 - 4 - 1 Scope This European Standard is an applic
18、ation standard, identifying recommended interfaces for connections of digital video broadcast integrated receiver decoder (DVB-IRD) equipment. If a recommended interface is supported, then the full specification of that interface, which may include options, applies. Interfaces not mentioned in this
19、document are not excluded and especially interfaces which are under development at the time of writing of this document may be added at a later stage. For mechanical and electrical details of the interfaces, reference is made to existing standards of IEC or CENELEC wherever possible, or standards wh
20、ich are known to be in an advanced state of development. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter.
21、 For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. 2.1 IEC Publications IEC 60807-9 Rectang
22、ular connectors for frequencies below 3 MHz - Part 9: Detail specification for a range of peritelevision connectors IEC 60933-1 Audio, video and audiovisual systems - Interconnections and matching values Part 1: 21-pin connector for video systems Application No. 1 2.2 CENELEC Publications EN 50049-1
23、 Domestic and similar electronic equipment interconnection requirements: Peritelevision connector EN 50157-1 Domestic and similar electronic equipment interconnection requirements: AV.link Part 1: General EN 50157-2-1 Part 2-1: Signal quality matching and automatic selection of source devices EN 502
24、21 Common interface specification for conditional access and other digital video broadcasting decoder applications EN 60169-24 Radio-frequency connectors Part 24: Radio-frequency coaxial connectors with screw coupling, typically for use in 75 ohm cable distribution systems (Type F) (IEC 60169-24) EN
25、 60933-5 Audio, video and audiovisual systems Interconnections and matching values Part 5: Y/C connector for video systems Electrical matching values and description of the connector (IEC 60933-5) EN 60958 Digital audio interface (IEC 60958) EN 61030 Audio, video and audiovisual systems - Domestic D
26、igital Bus (D2B) (IEC 61030) EN 61076-4-105 Connectors with assessed quality, for use in d.c., low frequency analogue and in digital high-speed data applications Part 4: Printed board connectors - Section 105: Detail specification for 9 mm circular connector with 3 to 8 contacts for use in a wide ra
27、nge of applications including the telecommunication and audio industry (IEC 61076-4-105) EN 61319-1 + A11 Interconnections of satellite receiving equipement Part 1: Europe (IEC 61319-1) EN 61883 Series Consumer audio/video equipment Digital interface (IEC 61883 Series) EN 61937 Digital audio - Inter
28、face for non-linear PCM encoded audio bitstreams applying IEC 60958 (IEC 61937)- 5 - EN 50201:2001 EN 61938 Audio, video and audiovisual systems - Interconnections and matching values - Preferred matching values of analogue signals (IEC 61938) HD 134.2 Radio-frequency connectors Part 2: coaxial unma
29、tched connector (IEC 60169-2:1965 + A1:1982) HD 369.3 Audiovisual, video and television equipment and systems - Part 3: Connectors for the interconnection of equipment in audio-visual systems (IEC 60574-3) HD 483.11 Sound system equipment - Part 11: Application of connectors for the interconnection
30、of sound system components (IEC 60268-11:1987 + A1:1989 + A2:1991) 2.3 Publications by ETSI ETR 154:1997 Digital Video Broadcasting (DVB) - Implementation guidelines for the use MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applications ETS 300473 Digital Video Bro
31、adcasting (DVB) - Satellite Master Antenna Television (SMATV) distribution systems ETS 300784 Satellite Earth Stations and Systems (SES); Television Receive-Only (TVRO) satellite earth stations operating in the 11/12 GHz frequency bands 2.4 Industrial publications PCMCIA PC Card Standard, release 3,
32、 Personal Computer Memory Card International Association, Sunnyvale, Cal. IEEE 1394 IEEE standard for a high performance serial bus IEEE 1284:1994 IEEE standard signalling method for a bidirectional parallel peripheral interface for personal computers ANSI/EIA RS232 Interface between data terminal e
33、quipment and data-circuit terminating equipment employing serial binary data interchange NOTE The latest version of this standard is published as RS232E (1991). 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: 3.1.1
34、Community Antenna Television system a system designed primarily to provide sound and television signals to communities 3.1.2 Satellite Master Antenna Television system a system designed to provide sound and television signals to the households of a building or group of buildings Two system configura
35、tions are defined in ETS 300473 as follows: - SMATV system A, based on transparent transmodulation of QPSK satellite signals into QAM signals to be distributed to user; - SMATV system B, based on direct distribution of QPSK signals to the user, with two options - SMATV-IF distribution on the satelli
36、te IF band (above 950 MHz), - SMATV-S distribution on the VHF/UHF band, for example the extended S-band (230 MHz - 470 MHz).EN 50201:2001 - 6 - 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ADSL Asymmetric Digital Subscriber Loop BSS Broadcast Satelli
37、te Services CA Conditional Access CATV Community Antenna Television system CENELEC European Committee for Electrotechnical Standardization CTS Clear To Send CVBS Composite Video, Blanking and Sync DTE/DCE Data Terminal Equipment/Data Communication Equipment DVB Digital Video Broadcast DVC Digital Vi
38、deo Cassette ECP Enhanced Capability Port EPP Enhanced Parallel Port ETSI European Telecommunications Standards Institute FM Frequency Modulation FSS Fixed Satellite Services GSTN General Switched Telephone Network IEC International Electrotechnical Commission IRD Integrated Receiver Decoder LNB Low
39、 Noise Block converter OSD On Screen Display PCM Pulse Code Modulation PSTN Public Switched Telephone Network QAM Quadrature Amplitude Modulation QPSK Quadruple Phase Shift Keying RTS Request to Send SMATV Satellite Master Antenna Television UHF Ultra-High Frequency (300 MHz . 3000 MHz) VBI Vertical
40、 Blanking Interval VGA Video Graphics Adapter VHF Very High Frequency (30 MHz 300 MHz) VOD Video On Demand VPS Video Programming System 4 Interface requirements for DVB-IRDs 4.1 RF input in the satellite IF range This clause specifies the interface in case of individual dish antenna or SMATV-IF (ana
41、logue and digital) installations.- 7 - EN 50201:2001 4.1.1 Polarization switch, LNBs band and first IF input selection The control signal to switch the polarisation, the control signal to select the upper or lower band of the LNB and the 1st IF input from the LNB to the DVB-IRD shall be as specified
42、 in EN 61319-1, clause 5. The connector is specified in EN 60169-24 (also known as the F-connector), the impedance is 75 and output return losses are specified in ETS 300784. 4.1.2 Azimuth control of a polar mount dish antenna The control signal for the azimuth control of a polar mount dish antenna
43、shall be as specified in EN 61319-1, clause 6. 4.2 RF I/O in the VHF/UHF range 4.2.1 RF input The RF input in the case of CATV installations, SMATV System A or SMATV-S installations, or in the case of terrestrial reception shall be as follows: - covers the VHF/UHF frequency bands (47 MHz - 862 MHz);
44、 - 75 coaxial; - connector HD 134.2 (IEC 60169-2), female connector on the DVB-IRD. 4.2.2 RF output The interface for RF output signals shall be as specified in 4.2.1 except for the connector which is HD 134.2 (IEC 60169-2) male version. RF output shall support either loop through only, RF modulated
45、 output from the DVB-IRD or both. In case of loop through, the modulator should output the VHF/UHF frequency bands as specified in 4.2.1. The channel to be used for RF modulated output depends on local circumstances, i.e. occupation of available channels by either terrestrial or cable programs (see
46、informative Annex B). It is recommended to support the channel range 21 to 69 in UHF. 4.3 Modem interface 4.3.1 PSTN modem A PSTN modem interface provides a low bit rate data channel. 4.3.1.1 External modem 4.3.1.1.1 DTE/DCE interface The modem shall support a) an interface lead with a 9 pin D-type
47、connector with male shell and female contacts, using RS232C interface levels. The DVB-IRD is seen as the Data Terminal Equipment (DTE) and shall be equipped with the mating connector. The pin arrangement shall be as follows: Pin number Name Function Source 1 DCD Carrier Detection modem 2 RXD Receive
48、 Data modem 3 TXD Transmit Data IRD 4 DTR Data Terminal Ready IRD 5 GND Signal Ground 6 DSR Data Set Ready modem 7 RTS Request To Send IRD 8 CTS Clear To Send modem 9 RI Ring Indicator modemEN 50201:2001 - 8 - b) automode selection ITU-T V.21, V.23 (1200/75), V.22 or V.22 bis transmission protocols
49、(one of these as a minimum). Asynchronous working with one or two stop bits and with or without parity shall be possible. It is recommended that V.32, V.32 bis and V.34 support is included and that the design does not preclude the addition of future enhancements, c) hardware flow control (RTS/CTS) in addition to XON/XOFF flow control, d) control by the Hayes AT command set, e) autocalling, ITU-T V.25 autoanswering and an autologon feature, f) ITU-T V.42 error correction and
