1、ETSI EN 301 165 v1.1.3(2002-08) European Sfandard (Telecommunicafions series) Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Network and terminal interface presentation 2 ETSI EN 301 165 VI .I .3 (2002-08) Reference REN/TM-O1098 Keywords architecture, leas
2、ed line, ONP, SDH, transmission ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual co
3、pies of the present document can be downloaded from: http:lwmv.etsi .arq 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 versions, the reference version is the Portable Document Forma
4、t (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 to revision or change of status. Information on the current st
5、atus of this and other ETSI documents is available at ha p:/pa rta I. etsi I a rgltbistat uslstatus .as p If you find errors in the present document, send your comment to: Cori vriaht Notifica tion No part may be reproduced except as authorized by written permission. The copyright and the foregoing
6、restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2002. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETS
7、I 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 3 ETSI EN 301 165 VI . 1 . 3 (2002-08) Contents Intellectual Property Rights 4 Foreword . 4 1 Scope 5 2 References 6 3 Definitions. symbols and abb
8、reviations . 7 3.1 Definitions 7 Symbols 9 3.2 3.3 Abbreviations . 10 4 4.1 4.1.1 4.1.2 4.2 4.2.1 4.2.2 4.3 4.3.1 4.3.2 4.4 4.4.1 4.4.2 4.5 4.6 Network and terminal interfaces for Virtual Container (VC) leased line connection 11 11 11 STM-4 section layers functions for NT and TE 14 15 Network path l
9、ayer func 15 Network path layer functions for lower order VC leased line connections 15 Path layers functions for TE . 16 Terminal path layer functions for VC-4 leased line connections 16 Terminal path layer functions for lower order VC leased line connections 16 Mechanical characteristics for NT an
10、d TE interfaces . 17 Connectors for the electrical STM-1 interface 17 Connectors for optical STM-N interfaces . 17 Safety 18 AU/TU numbering scheme . 18 Section layer functions for Network Termination (NT) and Terminal Equipment (TE) STM-1 section layers functions for NT and TE Path layer functions
11、for NT 5 Application of EN 300 417-2-1 18 6 Application of EN 300 417-3-1 20 7 Application of EN 300 417-4-1 22 8 Application of EN 300 417-6-1 28 Bibliography . 30 History 31 ETSI 4 ETSI EN 301 165 VI .I .3 (2002-08) Intellectual Property Rights IPRs essential or potentially essential to the presen
12、t document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 314: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respe
13、ct ofETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (5). 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 refere
14、nced in SR O00 3 14 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). National transposition dat
15、es Date of latest announcement of this EN (doa): 30 November 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 3 1 May 2003 I Date of withdrawal of any conflicting National Standard (dow): 3 1 May 2003 I ETSI 5 ETSI EN 301 165 VI .I .3 (2002-08) 1 Scope The
16、present document defines the atomic functions relevant for the interface presentations of Synchronous Digital Hierarchy (SDH) leased lines at the Network Termination Point (NTP) and the Terminal Equipment (TE). It specifies the technical requirements for electrical, optical, regenerator and multiple
17、x section layer and SDH path layers. The specification is presented as a delta information of the equipment specification of - EN 300 417-2-1 SI for STM-1 electrical and optical and STM-4 optical section layer; - EN 300 417-3-1 9 for STM-1 and STM-4 regenerator section and multiplex section layer; -
18、 EN 300 417-4-1 lo for SDH path layers (VC-4, VC-3, VC-2 and VC-12); - EN 300 417-6-1 111 for synchronization layer functions. The following physical section layers are used: - STM-1 electrical interface; - STM- 1 optical intra-office interface; - STM-1 optical short haul interfaces at 1 300 nm; - S
19、TM-4 optical intra-office interface; - STM-4 optical short haul interfaces at 1 300 nm. The interface margins are defined such, that interconnection of different optical interfaces is possible when an appropriate attenuation is inserted. A connection is presented via interfaces at NTPs. The present
20、document defies the network interface as presented by the leased line provider and should be used in conjunction with the companion standard, EN 301 164 5, speciSling the connection characteristics between NTPs of the leased line. The present document and the connection characteristic standard toget
21、her describe the technical characteristics of the leased line. The present document is applicable for leased lines, including part time leased lines, for which the establishment or release does not require any protocol exchange or other intervention at the NTP. The present document is to ensure that
22、 the interface of the terminal equipment is compatible with the SDH leased line interface. The present document is applicable to all interfaces designed for connection to the SDH leased lines. Customer premises wiring and installation between terminal equipment and the NTP are outside the scope of t
23、he present document. The conformance test of the section and path layer functions will be addressed under work items EN 300 417-x-3 (x = 2, 3,4 and 6). Some of the tests described in those ENS are not designed to be applied to the interface of an installed leased line; such tests may be applied to e
24、quipment of the kind used to provide the interface. The present document does not include extra details concerning the implementation of tests, nor does it include information of any relevant regulations. The present document does not speciSl the circumstances in which the tests given in EN 300 417-
25、x-3 (x = 2, 3,4 and 6) are to be performed. ETSI 6 ETSI EN 301 165 VI .I .3 (2002-08) 2 Re fe re 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, ed
26、ition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. il EN
27、 60950: “Safety of information technology equipment, including electrical business equipment“. IEC 60169-8 (1978): “Radio-frequency connectors - Part 8: R.F. coaxial connectors with inner diameter of outer conductor 6.5 mm (0.256 in) with bayonet lock - Characteristic impedance 50 Q (Type BNC)“. IEC
28、 60169-13 (1976): “Radio-frequency connectors - Part 13: R.F. coaxial connectors with inner diameter of outer conductor 5.6 mm (0.22 in) - Characteristic impedance 75 Q (Type 1.6/5.6) - Characteristic impedance 50 Q (Type 1N5.6) with similar mating dimensions“. ISO/IEC 10 173 (1 998): “Information t
29、echnology - Telecommunications and information exchange between systems - Interface connector and contact assignments for ISDN primary rate access connector located at reference points S and T“. ETSI EN 301 164: “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lin
30、es; Connection characteristics“. 21 31 41 51 61 ETSI ETS 300 147 (1997): “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); Multiplexing structure“. ETSI EN 300 417-1-1 : “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 1
31、- 1 : Generic processes and performance“. ETSI EN 300 417-2-1 : “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 2- 1 : Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) physical section layer functions“. ETSI EN 300
32、 417-3-1 : “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 3- 1 : Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions“. ETSI EN 300 417-4-1 : “Transmission and Multiplexing (TM); Generic requirements of tran
33、sport functionality of equipment; Part 4-1 : Synchronous Digital Hierarchy (SDH) path layer functions“. ETSI EN 300 417-6-1 : “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 6- 1 : Synchronization layer functions“. ITU-T Recommendation G.825 (1
34、993): “The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH)“. ITU-T Recommendation G.704 (1995): “Synchronous frame structures used at 1 544,6 3 12, 2 048, 8 488 and 44 736 kbit/s hierarchical levels“. 71 SI 91 lo1 111 121 i31 i41 IEC 60
35、364-5-548 (1996): “Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Section 548: Earthing arrangements and equipotential bonding for information technology installations“. ETSI 7 ETSI EN 301 165 VI .I .3 (2002-08) i51 ETSI EG 201 212: “Electrical safet
36、y; Classification of interfaces for equipment to be connected to telecommunication networks“. 3 3.1 Definitions, symbols and abbreviations De fi nit ions For the purposes of the present document, the following terms and definitions apply. process: generic term for an action or a collection of action
37、s function: “process“ defied for digital transmission hierarchies (e.g. Plesiochronous Digital Hierarchy (PDH), Synchronous Digital Hierarchy (SDH), which acts on a collection of input information to produce a collection of output information. A function is distinguished by the way in which characte
38、ristics of the collection, or of members of the collection of output information differ from characteristics of members of the collection of input information atomic function: “function“ which if divided into simpler “functions“ would cease to be uniquely defined for digital transmission hierarchies
39、. It is therefore indivisible from a network point of view. The following atomic functions are defied in each network layer: - bi-directional Trail Termination function ( .-TT), Trail Termination Source function ( .-TT-So), Trail Termination Sink function (.-TT-Sk) and Connection function (.-C); - b
40、etween client and server layer networks three adaptation functions are defined: Adaptation Sink function A-Sk, Adaptation Source function A-So, and the bi-directional Adaptation function . A. adaptation function: “atomic function“ which passes a collection of information between layer networks by ch
41、anging the way in which the collection of information is represented trail termination function: “atomic function“ within a “layer“ which generates, adds, and monitors information concerning the integrity and supervision of “adapted information“ connection function: “atomic function“ within a layer
42、which, if connectivity exists, relays a collection of items of information between groups of atomic functions. It does not modiSl the members of this collection of items of information although it may terminate any switching protocol information and act upon it. Any connectivity restrictions between
43、 inputs and outputs shall be stated layer: concept used to allow the transport network functionality to be described hierarchically as successive levels; each layer being solely concerned with the generation and transfer of its “characteristic information“ clientkerver layer: any two adjacent networ
44、k layers are associated in a clientkerver relationship. Each transport network layer provides transport to the layer above and uses transport from the layers below. The layer providing transport is termed a “server“, the layer using transport is termed “client“ Remote Defect Indication (RDI): signal
45、 which conveys the defect status of the characteristic information received by the Trail Termination sink function back to the network element which contains the characteristic information originating trail termination source function. Examples of RDI signals are the Far End Receive Failure (FERF) b
46、it(s) in SDH signals, the A-bit in ITU-T Recommendation G.704 131 structured 2 048 kbit/s signals and the alarm indication bit in other PDH multiplex signals Remote Error Indication (REI): signal which conveys either the exact or truncated number of error detection code violations within the charact
47、eristic information (as detected by the trail termination sink function) back to the network element which contains the characteristic information originating trail termination source function. Examples of REI signals are the Far End Block Error (FEBE) bit(s) in SDH signals and the E-bit in ITU-T Re
48、commendation G.704 13 structured 2 048 kbit/s signals all-ONES: entire capacity of the adapted or characteristic information is set to logic “1“ AU-4-AIS: STM-N signal in which the entire capacity of an Administrative Unit 4 (AU-4) is set to logic “1“ ETSI 8 ETSI EN 301 165 VI .I .3 (2002-08) TU-m-A
49、IS: STM-N signal in which the entire capacity of a TU-m is set to logic “1“ Characteristic Information (CI): signal of specific rate and format which is transferred within and between “sub-networks“, and presented to an “adaptation“ function for “transport“ by the server layer network Remote Information (RI): information flow from sink direction to source direction of the same atomic function in unidirectional representation, containing information to be transported to the remote end, such as RDI and REI Access Point (AP): “reference point“ where the output
