1、INTERNATIONALSTANDARDIEC61162-420First edition2001-11Maritime navigation and radiocommunicationequipment and systems Digital interfaces Part 420:Multiple talkers and multiple listeners Ship systems interconnection Companion standard requirementsand basic companion standardsReference numberIEC 61162-
2、420:2001(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consoli
3、dated editionsThe IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC p
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8、 contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC61162-420First edition2001-11Maritime navigation and radiocommunic
9、ationequipment and systems Digital interfaces Part 420:Multiple talkers and multiple listeners Ship systems interconnection Companion standard requirementsand basic companion standardsPRICE CODE IEC 2001 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any fo
10、rm or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chFor price,see current ca
11、talogue Commission Electrotechnique Internationale International Electrotechnical CommissionXDLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61162-420 IEC:2001(E)CONTENTSFOREWORD.6INTRODUCTION.81Scope and object.92Normative referenc
12、es.103Definitions.103.1Terms and abbreviations.103.2General typographical rules in this standard.124General principles for the PCS.124.1General structure.124.1.1Purpose.124.1.2Components of the PCSDL.124.1.3Object based principles in the PCSDL.134.1.4Generic and manufacturer specific companion stand
13、ards.144.1.5Generic companion standards(PFS).154.1.6Manufacturer specific companion standards.154.1.7Guidelines for using PCS.164.2Products of the PCS.174.2.1MAU name.174.2.2Interface name.174.2.3Interface class name.174.2.4Data object name.184.2.5Data object function.184.2.6Data object structure.18
14、4.2.7Data object information contents.184.2.8Run-time library information items.184.2.9PFS information items.194.3The PISCES foundation specifications(PFS).194.4Generic interfaces in the PFS.195The companion standard reference specification.195.1Introduction.195.2Basic concepts of the PCS.205.3Conve
15、ntions for companion standard specification files.215.3.1General principles.215.3.2Tokens.215.3.3Name structure.235.3.4Name scope.235.3.5Configurable identifiers and literal.245.4General structure of PCS specifications.245.4.1General.245.4.2The specification header.255.4.3The specification body.265.
16、5Application specifications.265.5.1Overview.265.5.2General layout.265.5.3Header.275.5.4Body.28LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61162-420 IEC:2001(E)3 5.6Interface component specifications.305.6.1Overview.305.6.2General layout.315.6.3Header specification.315.6.4Body specification.325.7Information specifications.335.7.1Overview.335.7.2General layout.335.7.3Header.345.7.4Body.345.8Data types.355.8.1Overview.355.8.2Gener
