1、 INCITS/ISO/IEC 11579-1-1994 (R2000)(formerly ANSI/ISO/IEC 11579-1-1994 (R2000)for Information Technology Telecommunications and InformationExchange Between Systems Private Integrated Services Network Part 1: Reference Configuration forPISN Exchanges (PINX)ANSI/ISO/IEC 11579-I-1994 American National
2、 Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Part 1: Reference Configuration for PISN Exchanges (PINX) Secretariat Information Technology Industry Council Approved August 17, 1995 American National Standard
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9、nd Street, New York, New York 10036Copyright 1995 by Information Technology Industry Council (ITI)All rights reserved.These materials are subject to copyright claims of International Standardization Organization (ISO),International Electrotechnical Commission (IEC), American National Standards Insti
10、tute (ANSI), andInformation Technology Industry Council (ITI). Not for resale. No part of this publication may bereproduced in any form, including an electronic retrieval system, without the prior written permission of ITI.All requests pertaining to this standard should be submitted to ITI, 1250 Eye
11、 Street NW, Washington, DC20005.Printed in the United States of AmericaContents Foreword . iv Introduction . vi 1 Scope 1 2 Normative references . 1 3 Symbols and abbreviations 1 4 Definitions . 1 5 PINX reference configuration 2 5.1 Terminal equipment (TE) 2 5.2 Private termination system functiona
12、l grouping (PTS) . 2 5.3 Switching functional grouping (SW) . 2 5.4 Mapping functional grouping (MP) . 2 5.5 Public ISDN access termination functional grouping (PIAT) . .2 5.6 Inter-PINX connection control functional grouping (ICC) .2 5.7 Call control functional grouping (CC) . 2 5.8 Scenario manage
13、ment . 2 6 Reference points (RP). . 3 6.1 C reference point 3 6.2 Q reference point . 3 6.3 S reference point . 3 6.4 T reference point 3 7 Use of the PINX reference configuration . .3 7.1 Multiple instances of Q reference point . 3 7.2 Multiple instances of C reference point . .4 7.3 Multiple IVN i
14、nterfaces . 4 7.4 Shared interface use 4 Annex A :Termination of signalling information flows .6 Annex B : Public ISDN / PISN interworking scenarios .7 Annex C : Example of a PISN employing multiple instances of Cl reference points .8 Annex D : Example for the application of the PINX reference confi
15、guration to a PISN . .9 . . . III Foreword (This fbreword is not part of American National Standard ANSI/ISO/IEC 11579-l-1994. This document is identical to ISO/IEC 11579-l-1994 and the following five paragraphs are the original fore- word as it appeared in that document.) IS0 (the International Org
16、anization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the r
17、espective organization to deal with particular fields of technical activity. IS0 and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work. In the field of infor
18、mation technology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopt- ed 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 nationa
19、l bodies casting a vote. International Standard ISO/IEC 11579-l was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems. ISO/IEC 11579 consists of the following parts, under the general title lnfo
20、rma tion technology - Telecommunications and information exchange between systems - Private integrated services network: - fart 1: Reference configuration for PISN Exchanges (PINX) - Part 2: Reference configuration for High-Speed PISN Exchanges (HS- PINX) Annexes A, B, C and D of this part of ISO/IE
21、C 11579 are for information only. Requests for interpretation, suggestions for improvement or addenda, or defect reports are welcome. They should be sent to the X3 Secretariat, Information Technology Industry Council, 1250 Eye Street, NW, Suite 200, Washington, DC 20005. This standard was processed
22、and approved for submittal to ANSI by Accredited Standards Committee on Information Technology, X3. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, the X3 Committee had the following members: Jame
23、s D. Converse, Chair Donald C. Loughry, Vice-Chair Joanne Flanagan, Secretary Organization Represented Name of Representative American Nuclear Society . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Geraldine C. Main Sally Hartzell (Alt.) AMP, Inc.
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Edward Kelly Charles Brill (Alt.) Apple Computer, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . David K. Michael AT - partitioning and apportioning of performance values; - numbering; - termination of signalling protocols; - etc. ISOllEC 11579 will consist of several parts. This part of ISOllEC 11579 defines the RC for a 64 kbit/s-based Private Integrated Services Network (PI
26、SN) exchange (PINX), including a description for modelling complete PlSNs consisting of more than one PINX. It also forms a component for a RC for high-speed-PISNs (HS-PISN), i.e. PlSNs which may be based on technologies such as broad-band ISDN, LAN, etc. The particularities for HS-PISN will be spec
27、ified in other parts of this standard. In addition to the user-to-ISDN reference configuration specified in CCITT Rec. 1.411 l which allows the exchanges of a private integrated services network (PISN) to interwork with a public ISDN in a Concatenation Scenario, ISO/IEC 11579 specifies a reference c
28、onfiguration which allows to specify the functions which apply to the control of connections and calls between any two exchanges of a given PISN The concept of this standard is based on the assumption that such inter-PISN-exchange connections are routed through an intervening network, which can be o
29、f any nature from, in the trivial case, a mere physical medium like a piece of wire, up to a switching network, such as the public ISDN, provided it offers the required capabilities for carrying user and control information between the PISN exchanges. In the case that the IVN is represented by a pub
30、lic ISDN, the PISN and the public ISDN interwork in an Overlay Scenario. For further information on the Concatenation and the Overlay Scenarios see annex B. In general, inter-PISN-exchange calls require that any two interconnected PISN exchanges - can be provided with bearer capabilities between eac
31、h other, which support and satisfy the requirements as requested by the users of the PISN; and - can interchange control information, which allows mutual control of network layer connections, including the control of supplementary services, if applicable; and - can interchange management information
32、, enabling management actions with regard to, e.g., the use and supervision of the user information channels. Reference point Q has been defined as a conceptual point (e.g. not as a real interface) where the exchange of connection control information between PISN exchanges shall be specified. Refere
33、nce point C has been defined as an interface point where the access parameters and procedures and, if applicable, the control information between the PISN exchanges and the intervening network shall be specified. Annex A shows the various information flows terminating at the reference points specifi
34、ed in this part of ISO/IEC 11579. vi AMERICAN NATIONAL STANDARD ANSI/ISO/IEC 11579-1-l 994 American National Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Part 1: Reference Configuration for PISN Exchanges (P
35、INX) 1 Scope This part of ISO/IEC 11579 specifies a reference configura- tion (RC) for private integrated services network exchanges (PINX) for their interconnection to form private integrated services networks (PISN). The configuration is not intended to require any specific implementation of a PIN
36、X, but only to provide guidance for the specification of PINX capabilities. This RC is sufficient to support ISDN-like applications. It can be extended to also support non-ISDN-like applica- tions. This RC describes a conceptual PINX. By combining mul- tiple PlNXs to a private integrated services ne
37、twork the RC becomes applicable to a PISN. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC 11579. At the time of publication, the editions in- dicated are valid. All standards are subject to revisi
38、on, and parties to agreements based on this part of ISO/IEC 11579 are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Mem- bers of IEC and IS0 maintain registers of currently valid In- ternational Standards. PI CCITT Recommendation 1.411
39、(1988), ISDN- User-Network Interfaces - Reference Configura- tions 121 CCITT Recommendation 1.570 (1992), Public/Private ISDN Interworking 3 Symbols and abbreviations cc Call Control functional grouping ICC Inter-PINX Connection Control functional group- ing IPC Inter-PINX Connection IVN Intervening
40、 Network ISCTX Integrated Services Centrex ISPBX Integrated Services Private Branch Exchange MP Mapping functional grouping PIAT Public ISDN Access functional grouping PINX Private integrated services network Exchange PISN Private integrated services network PTS Private Termination System functional
41、 grouping RC Reference configuration RP Reference Point SW Switching functional grouping TE Terminal Equipment functional grouping 4 Definitions For the purposes of this part of ISO/IEC 11579, the follow- ing definitions apply: 4.1 reference configuration : A conceptual configuration showing functio
42、nal arrangements within a public ISDN, a PISN or between a public ISDN and a PISN. Reference configurations are based on association rules of functional groupings and reference points. A functional arrangement may, but need not, be equivalent to a physical arrange- ments of units of equipment. 4.2 f
43、unctional grouping : A set of functions needed in functional arrangements. A functional grouping may, but need not, be equivalent to a unit of equipment. Depending on the actual implementation, some of the functions of a functional grouping may or may not be present. 4.3 reference point (RP) : A con
44、ceptual point at the junction of two functional groupings. In a specific functional arrangement, a reference point may, but need not, corre- spond to a physical interface between units of equipment. 4.4 private integrated services network (PISN) : A pri- vate network providing services to a specific
45、 set of users (different from a public network which provides services to the general public). 1 ANSI/ISO/IEC 11579-1-1994 NOTES TE and the SW, as well as adaptation functions to the 1 This definition does not include legal and regulatory physical, electrical and procedural conditions of the inter-
46、aspects and does not indicate any aspects of ownership face employed at the point of attachment of a TE to the PINX, to those employed at the SW. 2 The term PISN ” covers more than a (private) ISDN 4.5 private integrated services network exchange (PINX) : A PISN nodal entity which provides automatic
47、 connection handling functions used for the provision of telecommunication services . A nodal entity consists of one or more nodes. NOTE - If applicable, a PINX provides: - telecommunication services within its own area, and/or - telecommunication services from the public ISDN, and/or telecommunicat
48、ion services from other public net- works, and/or within the context of a private integrated services network, telecommunication services from other PlNXs to users of the same and/or other PlNXs A PINX can be presented by an ISPBX, ISCTX (CENTREX), or other equipment performing the functions outline
49、d above (e g LAN interworking unit). 4.6 inter-PINX connection (IPC) : A connection between two PlNXs; the inter-PINX connection is provided by an intervening network. It can be established on-demand or permanently, depending on the nature of the intervening network and, if applicable, customers requirements 4.7 intervening network (IVN) : The generic term for any real type of network which is employed for the provision of inter-PINX connections. 5 PINX reference configuration The reference configuration is depicted within the dotted rectangle in figure 1 and contains the following fu
