1、Reference numberISO/IEC 11579-3:1999(E)ISO/IEC 1999INTERNATIONALSTANDARDISO/IEC11579-3First edition1999-12-01Information technology Privateintegrated services network Part 3:Reference configuration for PINXextension linesTechnologies de linformation Rseau priv avec intgration deservices Partie 3:Con
2、figuration de rfrence pour lignes dextension PINXISO/IEC 11579-3:1999(E)PDF disclaimerThis PDF file may contain embedded typefaces.In accordance with Adobes licensing policy,this file may be printed or viewed but shall notbe edited unless the typefaces which are embedded are licensed to and installe
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5、 Central Secretariat at the address given below.ISO/IEC 1999All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronicor mechanical,including photocopying and microfilm,without permission in writing from either ISO
6、at the address below or ISOs member bodyin the country of the requester.ISO copyright officeCase postale 56?CH-1211 Geneva 20Tel.+41 22 749 01 11Fax+41 22 734 10 79E-mail copyrightiso.chWeb www.iso.chPrinted in Switzerlandii ISO/IEC 1999 All rights reservedISO/IEC 11579-3:1999(E)ISO/IEC 1999 All rig
7、hts reservediiiContentsPage1Scope.12Normative references.13Symbols and abbreviations.14Definitions.25PINX extension line reference configuration.25.1Transceivers.35.2Transceiver Control Function functional groupings.36Reference points(RP).36.1A reference point.36.2P reference points.46.2.1P1referenc
8、e point.46.2.2Further P reference points.4Annex A(informative)Examples for PTS Functional Groupings and their Combinations,and Allocationof Reference Points.5ISO/IEC 11579-3:1999(E)iv ISO/IEC 1999 All rights reservedForewordISO(the International Organization for Standardization)and IEC(the Internati
9、onal Electrotechnical Commission)form the specialized system for worldwide standardization.National bodies that are members of ISO or IECparticipate in the development of International Standards through technical committees established by therespective organization to deal with particular fields of
10、technical activity.ISO and IEC technical committeescollaborate in fields of mutual interest.Other international organizations,governmental and non-governmental,inliaison with ISO and IEC,also take part in the work.International Standards are drafted in accordance with the rules given in the ISO/IEC
11、Directives,Part 3.In the field of information technology,ISO and IEC have established a joint technical committee,ISO/IEC JTC 1.Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.Publication as an International Standard requires approv
12、al by at least 75%of the national bodies casting a vote.Attention is drawn to the possibility that some of the elements of this part of ISO/IEC 11579 may be the subject ofpatent rights.ISO and IEC shall not be held responsible for identifying any or all such patent rights.International Standard ISO/
13、IEC 11579-3 was prepared by Joint Technical Committee ISO/IEC JTC 1,Informationtechnology,Subcommittee SC 6,Telecommunications and information exchange between systems.ISO/IEC 11579 consists of the following parts,under the general titleInformation technology Private integratedservices network:?Part
14、 1:Reference configuration for PISN Exchanges(PINX)?Part 2:Reference configuration for HS-PISN Exchanges(HS-PINX)?Part 3:Reference configuration for PINX extension linesAnnex A of this part of ISO/IEC 11579 is for information only.ISO/IEC 11579-3:1999(E)ISO/IEC 1999 All rights reservedvIntroductionI
15、n general,the PTS infrastructure consists of a series of transceivers,i.e.functional groupings which can performreception,amplification,regeneration and sending of physical signals presented to them on the extension line.Inthe simplest case these transceiver functional groupings may be NULL,i.e.the
16、extension line consists of a simplephysical wiring.This International Standard establishes the rules according to which a generic PTS functional grouping can bemodelled to match the particular needs of an application,requiring active equipment in the extension line.INTERNATIONAL STANDARDISO/IEC 11579-3:1999(E)ISO/IEC 1999 All rights reserved1Information technology Private integrated services network Part 3:Reference configuration for PINX extension lines1ScopeThis part of ISO/IEC 11579 specifies
