CAN CSA-ISO IEC 14474-2001 Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Functional Requirements for .pdf

1、National Standard of CanadaCAN/CSA-ISO/IEC 14474-01(ISO/IEC 14474:1998)International Standard ISO/IEC 14474:1998 (first edition, 1998-12-15), has been adopted withoutmodification as CSA Standard CAN/CSA-ISO/IEC 14474-01, which has been approved as a National Standardof Canada by the Standards Counci

2、l of Canada.ISBN 1-55324-378-1 March 2001Reference numberISO/IEC 14474:1998(E)The Canadian Standards Association, which The Standards Council of Canada is theoperates under the name CSA International coordinating body of the National Standards system, (CSA), under whose auspices this National Standa

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16、3CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationInformation technology Telecom

17、munications and information exchange between systems Private Integrated Services Network FunctionalCAN/CSA-ISO/IEC 14474-01 requirements for static circuit-mode inter-PINX connectionsMarch 2001 CSA/1CAN/CSA-ISO/IEC 14474-01Information technology Telecommunications andinformation exchange betweensyst

18、ems Private IntegratedServices Network Functionalrequirements for static circuit-modeinter-PINX connectionsCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (T

19、CIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInt

20、ernational Telecommunication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable

21、for use in Canada. (A committeemembership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC maypublish addenda, corrigenda, etc. The CSA TCIT will review these documents for approval and publication. For a listing, refer to the CSA Information Products catalogue

22、or CSA Info Update or contact a CSA Salesrepresentative. This Standard has been formally approved, without modification, by these Committeesand has been approved as a National Standard of Canada by the Standards Council of Canada.March 2001 CSA International 2001All rights reserved. No part of this

23、publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Inquiries regarding this National Standard of Canada shouldbe addressed to CSA International, 178 Rexdale Boulevard, Toronto, Ontario, M9W 1R3.B CReferenc

24、e numberISO/IEC 14474:1998(E)INTERNATIONALSTANDARDISO/IEC14474First edition1998-12-15Information technology Telecommunications and informationexchange between systems PrivateIntegrated Services Network Functionalrequirements for static circuit-modeinter-PINX connectionsTechnologies de linformation T

25、lcommunications et changedinformation entre systmes Rseau priv intgration de services Exigences fonctionnelles pour les connexions inter-PINX en mode circuitstatiqueISO/IEC 14474:1998(E) ISO/IEC 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or uti

26、lized in anyform or by any means, electronic or mechanical, including photocopying and microfilm, without permission inwriting from the publisher.ISO/IEC Copyright Office Case postale 56 CH-1211 Genve 20 SwitzerlandiiForewordISO (the International Organization for Standardization) and IEC (the Inter

27、nationalElectrotechnical Commission) form the specialized system for worldwide standardization.National bodies that are members of ISO or IEC participate in the development ofInternational Standards through technical committees established by the respectiveorganization to deal with particular fields

28、 of technical activity. ISO and IEC technicalcommittees collaborate in fields of mutual interest. Other international organizations,governmental and non-governmental, in liaison with ISO and IEC, also take part in thework.In the field of information technology, ISO and IEC have established a joint t

29、echnicalcommittee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technicalcommittee are circulated to national bodies for voting. Publication as an InternationalStandard requires approval by at least 75 % of the national bodies casting a vote.International Standard ISO/IEC 14474

30、was prepared by Joint Technical CommitteeISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications andinformation exchange between systems.Annex A forms an integral part of this International Standard.INTERNATIONAL STANDARD ISO/IEC ISO/IEC 14474:1998(E)1Information technology Tele

31、communications and information exchangebetween systems Private Integrated Services Network Functionalrequirements for static circuit-mode inter-PINX connections1. ScopeThis International Standard is a part of the functional requirements for the Private Integrated Services Network (PISN)and defines t

32、he functions and procedures that are required by Private Integrated Services Network exchanges (PINXs)and the intervening network (IVN) in order to establish Inter-PINX Connections (IPC). The IPC is used for the transferof signalling and user information between PINXs.The Private Signalling System N

33、o.1 (PSS1) as defined in ISO/IEC 11572 and 11574 defines the signalling proceduresand protocol for call control between PINXs at the Q reference point. These procedures are independent of the types ofIVNs, called scenarios used to interconnect the PINXs. ISO/IEC TR14475 describes the use of various

34、types of IVNswhich provide the interconnections of PINXs.In order to connect a PINX to another PINX, mapping functions are required to adapt the specific interfaces at the Creference point to the application at the Q reference point. As such, mapping functions provide for physical adaptationto the i

35、nterface at the C reference point. Mapping functions also provide for the mapping of user channels andsignalling information at the Q reference point to the appropriate channels or time-slots at the C reference point. The Cand Q reference points are defined in ISO/IEC 11579-1.The types of interfaces

36、 at the C reference point covered by this International Standard are:1 1544 kbit/s unstructured digital leased line2 1544 kbit/s structured digital leased line3 2048 kbit/s unstructured digital leased line4 2048 kbit/s structured digital leased line5 64 kbit/s unrestricted digital leased line6 1544

37、kbit/s ISDN Primary Rate user-network layer 1 interface7 2048 kbit/s ISDN Primary Rate user-network layer 1 interface8 ISDN Basic Rate user-network layer 1 interfaceAt the Q reference point the mappings provide a 64 kbit/s service for user channels and a packet mode service for thesignalling channel

38、. The applied mapping is a static mapping, i.e. there is a fixed relationship between user andsignalling channels at the Q reference point and the timeslots of the interface at the C reference point. Any changes aresubject to administrative actions.This International Standard specifies PINX mapping

39、functions between the Q reference point and the C reference pointfor IVNs which provide either dedicated or semi-permanent, non-user activation, circuit-mode IPCs. The dedicated IPCis the connection permanently established, usually for the duration of a contractual period. The semi-permanent IPC ist

40、he connection whose resources are reserved for specified times during a contractual period. The semi-permanent IPC isestablished by management control with or without user activations. In this International Standard, the semi-permanentIPC established by management control with user activation is out

41、side the scope.The IVN can be a dedicated physical link, dedicated transmission system or a cross connect system, or semi-permanentconnection system. IVNs which include inverse mulitlexer techniques (e.g. channel aggregation in accordance withISO/IEC 13871) are covered by this International Standard

42、 so far as they support one of the interfaces listed above.This International Standard also specifies mapping information. At both sides of the PINX, mapping information isrequired to administer the scenarios.This International Standard is applicable to PINXs which can be interconnected to form a Pr

43、ivate Integrated ServicesNetwork (PISN) and which support signalling protocols at the Q reference point.ISO/IEC 14474:1998(E) ISO/IEC22. ConformanceIn order to conform to this International Standard, a PINX shall satisfy the requirements identified in the ProtocolImplementation Conformance Statement

44、 (PICS) proforma in annex A.3. Normative ReferencesThe following standards contain provisions which, through reference in this text, constitute provisions of thisInternational Standard. At the time of publication, the editions indicated were valid. All standards are subject torevision, and parties t

45、o agreements based on this International Standard are encouraged to investigate the possibility ofapplying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers ofcurrently valid International Standards.1 ISO/IEC 11579-1:1994, Information technology Tel

46、ecommunications and information exchange betweensystems Private integrated services network Part1: Reference configuration for PISN Exchanges (PINX).2 ISO/IEC TR 14475:1996, Information technology Telecommunications and information exchange betweensystems Private Integrated Services Network Architec

47、ture and Scenarios for Private Integrated ServicesNetworking.3 ISO/IEC 11572:1997, Information technology Telecommunications and information exchange between systems Private Integrated Services Network Circuit mode bearer services Inter-exchange signalling proceduresand protocol.4 ISO/IEC 11574:1994

48、, Information technology Telecommunications and information exchange between systems Private Integrated Services Network Circuit-mode 64 kbit/s bearer services Service description,functional capabilities and information flows.5 ITU-T Rec.G.703 (1991), Physical/electrical characteristics of hierarchi

49、cal digital interface.6 ITU-T Rec.G.704 (1995), Synchronous frame structures used at primary and secondary hierarchical levels.7 ITU-T Rec.G.706 (1991), Frame alignment and cyclic redundancy check (CRC) procedures relating to basicframe structures defined in Recommendation G.704.8 ITU-T Rec.I.431 (1993), Primary rate user-network interface Layer 1 specification.9 ITU-T Rec.I.430 (1995), Basic rate user-network interface Layer 1 specification.10 ITU-T Rec.I.412 (1988