ISO/IEC INTERNATIONAL STANDARD 15507 First edition 1997-12-01 Information technology - Telecommunications and information exchange between systems Private Integrated Services Network - Inter-exchange signalling protocol --- PiNx clock synchronization Technologies de I'information Telecommunications et échange d'information entre systemes - -Réseauprivéa integration deservices Protocole de signalisation d'interéchange -- Synchronisation d'horloge PINX IEC ISO Reference number ISO/IEC 15507:1997(E) Copyright Intermational Organization for Standardization d byIHS Not for Resale ISO/IEC 15507:1997 (E) Contents Foreword ii Introduction iv 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Definitions 1 4.1 External definitions 1 4.2 Other definitions 2 5 List of acronyms 2 6 Signalling protocol for the support of the protocol 2 6.1 Description 2 6.2 Operational requirements 2 6.3 Coding requirements 3 6.3.1 Operations 3 6.3.2 Information elements 4 6.3.3 Messages 4 6.4 State definitions 4 6.4.1 States at the Requesting PINX 4 6.4.2 States at the Destination PINX 4 6.5 Signalling procedures 4 6.5.1 Actions at the Requesting PINX 4 6.5.2 Actions at the Destination PINX 5 6.6 Impact of interworking with public ISDNs 5 6.7 Impact of interworking with non-ISDNs 5 5 6.9 Parameter values (timers) 5 6.9.1 Timer T1 5 Annex A - Protocol Implementation Conformance Statement (PICS) Proforma 6 Annex B - Examples of Message Sequences 10 Annex C - Specification and Description Language (SDL) Representation of Procedures 13 @ISO/EC1997 Al rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the pubisher. ISO/EC Copyright Office + Case Postale 56 + CH-1211Geneve 20 + Switzerland Printed in Switzeriand ii Copyright International Organization for Standardization No reproduction or networking permited without license from IHS Not for Resale @ISO/IEC ISO/IEC 15507:1997 (E) Foreword ISO(theInternationalOrganizationfor Standardization)andIEC(theInternationalElectrotechnical Commission)formthe specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. 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 approval by at least 75 % of the national bodies casting a vote. International Standard ISO/IEC 15507 was prepared by ECMA(as ECMA-245)and was adopted, under a special “fast-track procedure", by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by national bodies of ISO and IEC. Annex A forms an integral part of this International Standard. Annexes B and C are for information only. ii Not for Resale