1、 ETSI EG 201 730-3 V2.1.1 (2006-07)ETSI Guide Terminals access to Public Telecommunications Networks;Application of the Directive 1999/5/EC (RGuidelines for the publication of interface specifications;Part 3: Digital wireline interfacesETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 2 Reference REG/AT-01012
2、1-3 Keywords access, terminal, digital, interface, network, ISDN, POTS, PSTN, public, regulation ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Pr
3、fecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such
4、versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject
5、to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_su
6、pport.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade
7、Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EG 201 7
8、30-3 V2.1.1 (2006-07) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 4 1 Scope 6 2 References 6 3 Definitions and abbreviations.6 3.1 Definitions6 3.2 Abbreviations .7 4 Applicability of parameters to interface types7 4.1 Applicability of clauses to some particular interface types
9、7 5 Characteristics to be specified8 5.1 Physical characteristics.8 5.1.1 Connection method.8 5.1.2 Connection pin assignment and wiring arrangements 8 5.1.3 Sizing constraints8 5.2 Electrical Characteristics8 5.2.1 Signal characteristics 8 5.2.2 Synchronization 9 5.2.3 Power feed conditions.9 5.3 O
10、ptical signal Characteristics .9 5.3.1 Signal Characteristics .9 5.3.2 Synchronization 9 5.4 Basic Coding Structure.9 5.5 Protocol elements and procedures for signalling9 5.6 Additional features .9 5.6.1 Voice services.9 5.6.2 Charging information10 5.6.3 “Supplementary“ services and optional user f
11、acilities 10 5.6.4 Presentation aspects 10 Annex A (informative): List of most useful standards 11 A.1 General .11 A.2 ISDN basic access 11 A.3 ISDN primary rate access.11 A.4 Some ISDN based services interfaces to the user 11 A.5 Digital leased lines .11 A.6 Optical interfaces12 Annex B (informativ
12、e): Bibliography.13 History 15 ETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and
13、 non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/
14、IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential
15、 to the present document. Foreword This ETSI Guide (EG) has been produced by ETSI Technical Committee Access and Terminals (AT). The present document is part 3 of a multi-part deliverable covering Terminals access to Public Telecommunications Networks; Application of the Directive 1999/5/EC (R Guide
16、lines for the publication of interface specifications, as identified below: Part 1: “General and common aspects“; Part 2: “Analogue narrow-band wireline interfaces“; Part 3: “Digital wireline interfaces“; Part 4: “Broadband multimedia cable network interfaces“. Introduction The Radio Equipment and T
17、elecommunications Terminal Equipment (R Application of the Directive 1999/5/EC (R Guidelines for the publication of interface specifications Later new parts may be created and this will be reflected in the present document. The present document was produced in the context of the integration of all E
18、TSI deliverables published with the aim of facilitating the application of the R Digital access to the public telecommunications network; Publication of interface specification under Directive 1999/5/EC; Guidelines for describing digital interfaces“. NOTE: A more complete introductory text is offere
19、d in EG 201 730-1 2. ETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 6 1 Scope The purpose of the present document is to assist the public network operators and public service providers in producing interface publications according to Article 4.2 of Directive 1999/5/EC 1. The present document lists the char
20、acteristics of a non-radio digital interface to the public telecommunications network which could be necessary for a description of that interface but does not give guidance on the style of presentation of interface publications. The present document is applicable to interface specifications for new
21、, modified and existing interfaces. NOTE: General aspects of the guidance on producing interface publications according to Article 4.2 of Directive 1999/5/EC 1 are offered on EG 201 730-1 2. The present document gives technology specific guidance. Technology specific guidance for the most common tec
22、hnologies is offered in other parts of this multipart deliverables Indirect access to services and networks are also covered in the present document. The timing and other administrative issues regarding the publication of the interface specifications are not covered in the present document. 2 Refere
23、nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revis
24、ions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 Directive 1999/5/EC of the European Parliament and of the Council of 9 March 19
25、99 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (R Application of the Directive 1999/5/EC (R Guidelines for the publication of interface specifications; Part 1: General and common aspects“. 3 ITU-T Recommendation X.200 / ISO/IEC 7498-1 (
26、1994): “Information technology - Open Systems Interconnection - Basic Reference Model: The basic model“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in EG 201 730-1 2 and the following apply: direct access: access for term
27、inal equipment to services provided by a PNO or PSP exclusively via the infrastructure of that PNO or PSP indirect access: access for terminal equipment to services provided by a PNO or PSP via the infrastructure of another PNO or PSP ETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 7 leased line: connection
28、 between two or more points that does not require the terminal to provide the network with information in order for the connection to be established public telecommunications network: telecommunications network used to provide publicly available telecommunications services structured: digital servic
29、e offering in which the number of bits to a frame, the meaning of bits within certain frames, etc. is defined and agreed with the network operator switched: connection normally between any two points that requires the terminal to provide the network with information in order for the connection to be
30、 established unstructured: digital service offering in which the structure and content of the bit stream is not subject to any agreement with the network operator 3.2 Abbreviations For the purposes of the present document, the abbreviations given in EG 201 730-1 2 and the following apply: ISO Intern
31、ational Organization for Standardization NTP Network Termination Point PNO Public Network Operators PSP Public Service Providers PTN Public Telecommunications Network 4 Applicability of parameters to interface types. The parameters described in the present document are applicable to various types of
32、 non-radio digital access to the public telecommunications network. Direct and indirect access to public telecommunications networks are described in clause 6.2 of EG 201 730-1 2, where different positions of the interface in relation to the Network Termination equipment are also studied. In all the
33、 scenarios the interface at the NTP, has to be published. In the scenarios for indirect access, the additional details also have to be published where these are required for terminal design and are not contained in the direct access interface publication. 4.1 Applicability of clauses to some particu
34、lar interface types Not all of the characteristics described in clause 5 are applicable to every network interface. Guidance on applicability may be found in table 1. Table 1 indicates which clauses of the present document are likely to be relevant to particular types of digital interfaces. ETSI ETS
35、I EG 201 730-3 V2.1.1 (2006-07) 8 Table 1 Network Interface Type Leased Switched Clause No Clause title Unstructured Structured 7.1 of EG 201 730-1 2 General checkbld checkbld checkbld 7.2 of EG 201 730-1 2 Safety checkbld checkbld checkbld 7.3 of EG 201 730-1 2 EMC checkbld checkbld checkbld 5.1 Ph
36、ysical characteristics checkbld checkbld checkbld 5.2 Electrical characteristics checkbld checkbld checkbld 5.3 Optical signal characteristics X checkbld checkbld 5.4 Basic coding structure X X checkbld 5.5 Protocol elements and procedures for signalling X X checkbld 5.6 Additional features checkbld
37、(see note) Legend checkbld subject applies X subject does not apply NOTE: Depending on the implementations and services provided. 5 Characteristics to be specified 5.1 Physical characteristics 5.1.1 Connection method The mechanical characteristics of the network connection point should be described
38、in sufficient detail as to allow a terminal manufacturer to design or select a connector or an adapter capable of reliably connecting the terminal at the NTP. 5.1.2 Connection pin assignment and wiring arrangements Full details of connector pin assignment should be provided where plug/socket connect
39、ors are used at the NTP. Where the NTP is of the hardwired variety, details of cable type and connection arrangements should be provided. 5.1.3 Sizing constraints Any characteristic that may limit the number of terminals that can be connected to the PTN interface should be specified. Examples of suc
40、h characteristics are maximum power consumption and maximum bus loading. 5.2 Electrical Characteristics 5.2.1 Signal characteristics Details of the electrical characteristics of the interface such as the range of transmission rates, the range of signal power accepted and delivered by the interface,
41、pulse mask, line code, impedance, timing limitations, etc. should be provided. ETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 9 5.2.2 Synchronization Where the service provides a network source of synchronization or requires synchronization to the network for it to function, sufficient information should b
42、e provided to enable the designer to produce a terminal that can synchronize with the network. 5.2.3 Power feed conditions Where power is provided over the interface, full details of the power arrangements should be given. 5.3 Optical signal Characteristics 5.3.1 Signal Characteristics Details of th
43、e optical characteristics of the interface such as the range of transmission rates, the ranges of signal power and wavelength accepted and delivered by the interface, pulse mask, line code, timing limitations, etc. should be provided. 5.3.2 Synchronization Where the service provides a network source
44、 of synchronization or requires synchronization to the network for it to function, sufficient information should be provided to enable the designer to produce a terminal that can synchronize with the network. 5.4 Basic Coding Structure Details should include items such as state machine, bit stuffing
45、, priority mechanisms and alarm reporting, etc. 5.5 Protocol elements and procedures for signalling Where the Public Telecommunications Network uses a layered protocol architecture, the functions and characteristics of each layer that involves interaction between the terminal equipment and the Publi
46、c Telecommunications Network should be specified. As an example, for interfaces based on the Open Systems Interconnection Model 3 - characteristics of layers 1, 2 and 3 will need to be considered, although some characteristics within any specific layer may not be relevant for all types of interface.
47、 Where interaction between the terminal and the network is required above layer 3, characteristics of these higher layers will also need to be provided. A similar level of detail will need to be provided for interfaces not based on the ISO 7 layer model. The PTN interface specification should includ
48、e a list of all the telecommunication services provided through the PTN interface. Protocol elements and procedures for establishing, maintaining, modifying and terminating communications should be detailed as well as the methodology for dealing with any unrecognized protocol data units or data elem
49、ents. Protocol elements might be code, frame format and size, messages, information elements, timers, window size, etc. Details should be provided not only of the options that have been provided, but also any that have not. 5.6 Additional features Not all interfaces will support all the following features. 5.6.1 Voice services The coding algorithm used to digitize the speech should be detailed. ETSI ETSI EG 201 730-3 V2.1.1 (2006-07) 105.6.2 Charging information Where charging information is applied or supplied by the network at the NTP, this s
