BS IEC 60864-1-1997 Standardization of interconnections between broadcasting transmitters or transmitter systems and supervisory equipment - Interface standards for systems using d.pdf

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1、BRITISH STANDARD BS IEC 60864-1:1986 (including IEC amendment No.1:1987) Standardization of interconnections between broadcasting transmitters or transmitter systems and supervisory equipment Part1: Interface standards for systems using dedicated interconnections (Implementation of CENELEC HD577S1)

2、ICS33.060.20; 33.200BSIEC60864-1:1986 This BritishStandard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comesinto effect on 15August1997 BSI03-2000 ISBN 0 580 27484 5 National foreword This BritishStandard

3、is the English language version of CENELEC HD577S1. It is identical with IEC60864-1:1986, including Amendment No.1:1987. The UK participation in its preparation was entrusted to Technical Committee EPL/103, Transmitting equipment for radio communication, which has the responsibility to: aid enquirer

4、s to understand 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. A list of organizations repre

5、sented on this committee can be obtained on request to its secretary. From1 January1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, pub

6、lications may contain identifiers from both systems. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal o

7、bligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theHDtitle page, pages2 to24 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the i

8、nside front cover. Amendments issued since publication Amd. No. Date CommentsBSIEC60864-1:1986 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword 2 Text of HD577S1 3ii blankHARMONIZATION DOCUMENT DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT HD577S1 July1990 UDC:621.316.541:

9、621.396 Descriptors: Radiocommunication,broadcasting, transmitter, circuit interconnection, interconnection cable, interface English version Standardization of interconnections between broadcasting transmitters or transmitter systems and supervisory equipment Part1: Interface standards for systems u

10、sing dedicated interconnections (IEC60864-1:1986+A1:1987) Normalisation des interconnexions entre les metteurs ou les systmes dmetteurs de radiodiffusion et les systmes de tlsurveillance Premire partie: Normes dinterface pour les systmes interconnexions cbles (CEI60864-1:1986+A1:1987) Normung der Zu

11、sammenschaltung von Rundfunksendern oder -Sendersystemen mit Fernwirkeinrichtungen Teil1: Schnittstellen fr Anlagen mit zugeordneten Verbindungen (IEC60864-1:1986+A1:1987) This Harmonization Document was approved by CENELEC on1990-06-01. CENELEC members are bound to comply with the CEN/CENELEC Inter

12、nal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning national implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This Harmonizat

13、ion Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUni

14、ted Kingdom. 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 1990 Copyright reserved to CENELEC members Ref. No. HD577S1:1990EBSIE

15、C60864-1:1986 BSI 03-2000 2 Foreword International Standard IEC60864-1:1986 was submitted to the CENELEC members for formal acceptance as a Harmonized Document and was approved by CENELEC as HD577S1 on1June1990. The following dates were fixed: Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Obje

16、ct 3 Section 1. General 3 Terminology 3 4 General philosophy 3 5 Interfaces 3 6 Command and indication circuits 4 7 Transmitter systems 4 Section 2. Standard binary interface techniques 8 Introduction 4 9 Relay techniques 4 9.1 Commands 4 9.2 Indications 5 10 Semiconductor logic techniques 5 10.1 Co

17、mmands 5 10.2 Indications 6 11 Opto-isolator techniques 6 11.1 Commands 6 11.2 Indications 7 Section 3. Binary commands and indications 12 Introduction 7 13 Single transmitter facilities 7 14 Passive reserve system facilities 8 15 Active reserve system facilities 9 16 (N+1) reserve system facilities

18、 9 17 Multiplex reserve system facilities 10 Page Section 4. Standard interface techniques (Analogue) 18 Introduction 11 19 Circuit requirements 11 Section 5. Analogue commands and indications 20 Introduction 11 21 Transmitter facilities 11 Section 6. General system requirements 22 Introduction 11 2

19、3 Standard requirements for all systems 12 23.1 System logic power supply 12 23.2 Mains supply interruptions 12 23.3 Local/remote facilities 12 23.4 Auto/manual facilities 12 Appendix A Glossary and definition of terms in common use 20 Appendix B Index of English terms 24 Figure 1 Diagrams showing t

20、he relationshipbetween various terms 13 Figure 2 Simplified diagram of arrangementofequipment for two transmittersinpassive or active reserve 14 Figure 3 Simplified diagrams of commonly used transmitter systems 15 Figure 4 Example of relay interface technique 16 Figure 5 Principle of semiconductor l

21、ogic and photocoupler interface techniques 17 Figure 6 Typical arrangement of drives in a multiplex reserve television transmitter system 18 Figure 7 Example of analogue interface technique 19 Table I 6 Table I 7 Table II 8 Table III 8 Table IV 9 Table V 10 Table VI 10 Table VII 11 Table VIII 11 lat

22、est date of announcementof the HD atnational level (doa)1990-12-15 latest date of publication ofan identical national standard (dop)1991-06-15 latest date of withdrawal ofconflicting national standards (dow)1991-06-15BSIEC60864-1:1986 BSI 03-2000 3 Introduction The majority of broadcasting transmitt

23、ing stations are designed and constructed to operate unattended, that is without personnel being present in the same room as the transmitter. Normally, supervisory equipment is installed which continuously monitors and sometimes controls the operation of the transmitters. The supervisory equipment m

24、ay range from a simple unit which merely extends indications and controls into an adjacent room, to a highly sophisticated system enabling a large number of transmitters to be controlled from a common point. This standard is concerned with the interface between the transmitters and supervisory equip

25、ment. It comprises two parts: Part1: Interface standards for systems using dedicated interconnections; Part2: Interface standards for systems using data bus type interconnections (under consideration). It seems appropriate to divide the standard in this way because, although the majority of existing

26、 transmitters employ wired interconnections, the advent of microprocessors and software techniques will require different interconnection methods, for example, by means of optical fibres. 1 Scope This standard is applicable to all classes of transmitters for sound and television broadcasting. The st

27、andard may not, however, be appropriate for low power equipment and certain special purpose transmitters. Any facilities and interconnections not directly associated with the transmitters, for example intruder alarms, mast lighting,etc., are excluded from this standard. 2 Object This standard deals

28、with the interface between a transmitter (or system of transmitters) and the supervisory equipment which is intended to remotely monitor and/or control the transmitter(s). It details the interconnections and facilities to be provided with a view to achieving compatibility between different types and

29、 makes of transmitters and supervisory equipment. Section 1. General 3 Terminology To ensure a common understanding of terms used in this standard, a glossary and index have been included in Appendix A and Appendix B. The relationship between some of the most important terms is shown in Figure 1, pa

30、ge13. 4 General philosophy In order to achieve standardization, it is necessary to adopt a general philosophy, the main concepts of which are as follows: a) A basic (single) transmitter should contain its own logic to enable it to operate in its own right if no additional or reserve transmitters are

31、 required. b) Any transmitter system (an example of which is shown in Figure 2, page14, should comprise two or more basic transmitters. c) Control and operation of a system of transmitters should be exercised by means of separate system logic. d) The interfaces of both the basic transmitter and the

32、system logic unit need to be standardized in order to ensure compatibility and interchangeability of equipment. 5 Interfaces The interfaces to be standardized are shown in Figure 2. Commands and indications are sent from and received by the supervisory equipment, via dedicated pairs of wires connect

33、ed to dedicated interface terminals or connectors on the transmitter or system logic unit.BSIEC60864-1:1986 4 BSI 03-2000 It should be noted that this standard relates to the transmitter and system logic interface terminals and not to the supervisory equipment, although this must, of course, be comp

34、atible. 6 Command and indication circuits The term “command circuit” is used throughout this standard to denote the (dedicated) circuit required to send each command to the transmitter. Similarly, the term “indication circuit” is used to denote the circuit by means of which each indication is sent f

35、rom the transmitter. 7 Transmitter systems A wide variety of transmitter systems may be devised using the approach referred to in Clause4. Transmitter systems in common use are: single transmitter (in the case of television, comprising a vision and sound transmitter operating together); passive rese

36、rve system; active reserve system; (N+1) reserve system; multiplex reserve system. Examples of such systems are shown in Figure 3, page15. Many minor variations of these systems are possible but the diagram indicates the most important features of each. Sections2 to5 below are concerned with the fac

37、ilities to be provided for each system, distinguishing between binary and analogue techniques. General requirements relating to all systems are given in Section6. Section 2. Standard binary interface techniques 8 Introduction This section deals with the three main techniques in common use in systems

38、 employing binary techniques and dedicated interconnections, viz, relays; semiconductor logic; opto-isolators. 9 Relay techniques The use of relay techniques is illustrated in Figure 4, page16. This shows the principle that the low voltage supply for command circuits is part of the transmitter and s

39、imilarly, the supply for indication circuits is part of the system logic unit (or supervisory equipment in the case of a single transmitter). The low voltage supply should preferably be connected to the relays via a link external to the transmitter, as shown in Figure 4. This arrangement facilitates

40、 compatibility with different types of supervisory equipment. 9.1 Commands Commands are sent to the transmitter by means of contacts located in the supervisory equipment or system logic unit. The transmitter logic shall be compatible with one or the other of the following two techniques: 1) Continuo

41、us closure of the appropriate contact of the supervisory equipment or system logic unit for the duration of the required state. The opposite state is achieved by opening the contact and in this case, only a single command circuit is required. 2) Momentary closure of the contact with a duration betwe

42、en100ms and500ms. In this case, the opposite command requires an additional command circuit. Unintentional continuous closure of contacts which are intended for momentary closure shall not interfere with the normal operation of the transmitters.BSIEC60864-1:1986 BSI 03-2000 5 9.1.1 Circuit requireme

43、nts Command circuit terminals shall be earth-free and arranged so as to allow for either: independent pairs, or the use of a common return wire. Command circuit relays shall have a nominal voltage of24V and a maximum energizing current of25mA. It is recommended that the relays should be compatible w

44、ith semiconductor logic techniques and opto-isolator techniques in accordance with Clauses10 and11. 9.1.2 Contact requirements Command circuit contacts shall be floating, i.e.free of all potentials. The contacts shall be capable of switching at least25mA at24V d.c. 9.2 Indications As can be seen in

45、Figure 4, page16, indications are sent to the supervisory equipment or system logic unit by means of change-over contacts located in the transmitter. 9.2.1 Contact requirements Either the normally open or normally closed contacts may be used. The contacts shall be floating, i.e.free of all potential

46、s, and operate continuously for the duration of the indicated status. The contacts shall be capable of switching at least25mA at24V d.c. 10 Semiconductor logic techniques The principle of semiconductor logic techniques is illustrated in Figure 5, page17. Appropriate precautions shall be taken to pre

47、vent misoperation as a result of unwanted voltages on the interconnections between the transmitter and the supervisory equipment or system logic unit. 10.1 Commands Commands are sent to the transmitter by means of semiconductor switching devices or floating contacts located in the supervisory equipm

48、ent or system logic unit. The transmitter logic shall be compatible with one or the other of the following two techniques: 1) Continuous closure of the command circuit by the appropriate switching device in the supervisory equipment or system logic unit for the duration of the required state. The op

49、posite state is achieved by opening the circuit and in this case, only a single command circuit is required. 2) Momentary closure of the circuit with a duration between20ms and500ms. In this case, the opposite command requires an additional command circuit. Unintentional continuous closure of circuits which are intended for momentary closure shall not interfere with the normal operation of the transmitters. 10.1.1 Circuit requirements Command circuits may employ a common return connected to the earthed negativ