ITU-T M 10-1992 Scope and application of Recommendations for maintenance of telecommunication networks and services《对电信网络和服务的维护-维修的建议的范围和应用 引进原则(第4研究组)13页》.pdf
《ITU-T M 10-1992 Scope and application of Recommendations for maintenance of telecommunication networks and services《对电信网络和服务的维护-维修的建议的范围和应用 引进原则(第4研究组)13页》.pdf》由会员分享,可在线阅读,更多相关《ITU-T M 10-1992 Scope and application of Recommendations for maintenance of telecommunication networks and services《对电信网络和服务的维护-维修的建议的范围和应用 引进原则(第4研究组)13页》.pdf(13页珍藏版)》请在麦多课文档分享上搜索。
1、CCITT RECMN*H.LO 92 m q8b259L 0578bb7 338 INTERNATIONAL TE LECOMMU N ICATION UN ION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE MAINTENANCE: INTRODUCTION AND GENERAL PRINCIPLES M.l O (1 0/92) SCOPE AND APPLICATION OF RECOMMENDATIONS FOR MAINTENANCE OF TELECOMMUNICATION NET
2、WORKS AND SERVICES i Recommendation M.10 CCITT RECMN*M.LO 92 II 4862593 0578bb8 274 FOREWORD The CCITT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU). CCITT is responsible for studying technical, operating an
3、d tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCIT which meets every four years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommen
4、dations by the members of CCITT between Plenary Assemblies is covered by the procedure laid down in CCITT Resolution No. 2 (Melbourne, 1988). Recommendation M.10 was prepared by Study Group IV and was approved under the Resolution No. 2 procedure on the 5th of October 1992. CCIT NOTE In this Recomme
5、ndation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. O IT 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanic
6、al, including photocopying and microfilm, without permission in writing from the ITU. CCITT RECMN*M.LO 92 4Bb259L 057Bbb7 LOO H Recommendation M.10 SCOPE AND APPLICATION OF RECOMMENDATIONS FOR MAINTENANCE OF TELECOMMUNICATION NETWORKS AND SERVICES (1992) Abstract The purpose of this Recommendation i
7、s to describe, from a maintenance viewpoint, the relationships between the quality level at which telecommunication services are provided and the performance of telecommuni- cation networks that carry them. This Recommendation also provides general guidance to Administrations on maintenance processe
8、s by directing them to the relevant and specific Recommendations dealing with maintenance of network and services. Keywords - Maintenance; - network; - service. 1 General The purpose of this Recommendation is to describe, from a maintenance viewpoint, the relationships between the quality level at w
9、hich telecommunication services are provided and the performance of telecommunication networks that carry them. This Recommendation should be considered as an introductory Recommendation to the specific Recommendations M.20, “Maintenance philosophy for telecommunication networks”, and M.21, “Mainten
10、ance philosophy for telecommunication services”. This Recommendation also provides general guidance to Administrations on maintenance processes by directing them to the relevant and specific Recommendations dealing with maintenance of networks and services. 2 Maintenance relationships Figure 1M. 10
11、shows the relationships between telecommunication services, the telecommunication networks, and maintenance processes. Networks are made up of two parts, as shown in the figure: physical equipment (e.g. the transmission equipment, switching exchanges, signalling equipment, supporting equipment, etc.
12、) and more abstract or “logical” items (e.g. circuits, paths, links, etc.) that are derived from them. These networks carry the various telecommunication services, including both bearer services and teleservices, to meet the needs of the users. As shown in Figure 1/M. 10, the maintenance processes,
13、as part of the overall OA Recommendation M.20; - Service maintenance; Recommendation M.21; - Maintenance organizations; Recommendation M.70; - Principles of TMN; Recommendation M.3010. Recommendation M.10 (10/92) 1 CCITT RECMN*M=LO 92 4862571 O578670 922 Maintenance information and conird flows swit
14、ched switched services Swrtched services services services II Derived from - . - - - I ir Support equipment Transmission and signalling systems Telecommunication network(s) As part ofthe overall OA preliminary exchange of information Setting up and lining up an international circuit for public telep
15、hony Bringing an intemational digital circuit into service Setting up and lining up a circuit fitted with a compandor Organization of routine maintenance measurements on circuits Routine maintenance schedule for international public telephony circuits Periodicity of maintenance measurements on circu
16、its Methods for carrying out routine measurements on circuits Maintenance of circuits using control chart methods When revised, this Recommendation wiil have a new title to avoid confusion due to the use of the word “organization” 4 Recommendation M.10 (10/92) CCITT RECMN*M.LO 92 - 4862593 0578673 6
17、31 Rec.No. M.650 M.660 M.665 M.670 M.675 M.710 M.711 M.715 M.716 M.7 17 M.718 M.719 M.720 M.721 M.722 M.723 M.724 M.725 M.726 M.729 M.730 M.73 1 M.732 M.733 M.734 Routine line measurements to be made on the line repeaters of audio-frequency sections or circuits Periodical in-station tests of echo su
18、ppressors complying with Recommendations G.161 and G.164 Testing of echo cancellers Maintenance of a circuit fitted with a compandor Lining up and maintaining international demand assignment circuits (SPADE) General maintenance organization for the international automatic and semi-automatic telephon
19、e service (Renumbered as M.1550) Fault report point (circuit) Fault report point (network) Testing point (transmission) Testing point (line signalling) Testing point (switching and interregister signalling) Network analysis point System availability information point Network management point Circuit
20、 control station Circuit sub-control station Restoration control point Maintenance organization for the wholly digital international automatic and semi-automatic telephone service Organization of the maintenance of international public switched telephone circuits used for data transmission Maintenan
21、ce methods Subjective testing Signalling and switching routine maintenance tests and measurements Transmission routine maintenance measurements on automatic and semi-automatic telephone circuits Exchange of information on incoming test facilities at international switching centres SECTION 4 M.800 M.
22、810 International telegraph systems and phototelegraph transmission Use of circuits for voice-frequency telegraphy Setting up and lining up an international voice-frequency telegraph link for public telegraph circuits (for 50, 100 and 200 baud modulation rates) Periodicity of routine tests on intern
23、ational voice-frequency telegraph links Routine measurements to be made on international voice-frequency telegraph links M.820 M.830 Recommendation M.10 (10/92) 5 CCITT RECMN*M-LO 92 4862591 0578b74 578 H Rec. No. M.850 M.880 . International phototelegraph transmission International time division mu
24、ltiplex (TDM) telegraph systems SECTION 5 M.900 M.910 International leased group and supergroup links Use of leased group and supergroup links for wide-specirum signal transmission (data, facsimile, etc.) Setting up and lining up an international leased group link for wide-spectrum signal transmissi
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