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
25、on SECTION 6 International leased circuits M.lO1O Constitution and nomenclature of international leased circuits M.1012 Circuit control station for leased and special circuits M. 1013 M. 1014 M.1015 M.1016 M.1020 M.1025 M. 1030 M. 1040 M.1045 M. 1050 M.1055 M.1060 Sub-control station for leased and
26、special circuits Transmission maintenance point (intemational line) (TMP-IL) Types of transmission on leased circuits Assessment of the service availability performance of international leased circuits Characteristics of special quality international leased circuits with special bandwidth conditioni
27、ng Characteristics of special quality international leased circuits with basic bandwidth conditioning Characteristics of ordinary quality international leased circuits forming part of private switched telephone networks Characteristics of ordinary quality international leased circuits Preliminary ex
28、change of information for the provision of international leased circuits Lining up an international point-to-point leased circuit Lining up an international multiterminal leased circuit Maintenance of intemational leased circuits SECTION 7 Mobile systems M. 1130 General definitions and general princ
29、iples of the operation and maintenance procedures to be used in satellite mobile systems Maritime mobile telecommunication services via satellite M. 1 140 (Blue Book No. M.1100) M. 1150 Maritime mobile telecommunications store-and-forward services (packet Mode) via satellite M.1160 Aeronautical mobi
30、le telecommunication service via satellite SECTION 8 M. 1220 (Renumbered as M.1530) M.1230 International public telephone network maintenance Assessment of the performance of the international telephone network M.1235 Use of automatically generated test calls for assessment of network performance 6
31、Recommendation M.10 (10192) CCITT RECMN*N.LO 92 m 486259L 0578675 404 m Rec. No. SECTION 9 M.1300 M. 1320 M. 1340 M.1350 International data transmission systems International data transmission systems operating in the range 2.4 kbit/s to 2048 kbids Numbering of channels in data transmission systems
32、Performance allocations and limits for international data transmission links and systems Setting up, lining up and characteristics of international data transmission systems operating in the range 2.4 kbit/s to 14.4 kbith M. 1355 M.1370 M. 1375 Maintenance of international data transmission systems
33、operating in the range 2.4 to 14.4 kbit/s Bringing-into-service of international data transmission systems Maintenance of international data transmission systems SECTION 10 M. 1400 Designations and information exchange Designations for international network circuits, groups, group and line links, di
34、gital blocks, digital paths, data transmission systems, digital blocks created between DCMRs, virtual containers, multiplex sections, and related information (Blue Book No. M.140) M.1510 Exchange of contact point information for the maintenance of international services and the (Blue Book No. M.93)
35、M. 1520 M. 1530 Network maintenance information (Blue Book No. M.1220) M. 1540 See M.490 M. 1550 Escalation procedure (Blue Book No. M.7 11) M.1560 international network Standardized information exchange between administrations Escalation procedure for international leased circuits SECTION 1 1 M.201
36、0 See M.410 International transport network M.2100 (Blue Book No. M.550) M.2110 (Blue Book No. M.555) M.2120 M.2130 (Blue Book No. M.130) M.2310 See M.495 M.2320 See M.496 Performance limits for bringing-into-service and maintenance of international digital paths, sections and transmission systems B
37、ringing into service international digital paths, sections and transmission systems Digital path, section and transmission system fault detection and localization procedures Operational procedures in locating and clearing transmission faults SECTION 12 Telecommunications management network M.3010 (B
38、lue Book No. M.30) Principles for a telecommunication management network Recommendation M.10 (101p2) 7 CCITT RECMN*M.LO 92 4862593 0578676 340 Rec. No. M.3020 TMN interface specification methodology M.3100 . Generic network information model M.3180 M.3200 TMN management service: Overview M.3300 (Blu
39、e Book Nos. M.250 and M.251) M.3400 TMN management functions Catalogue of TMN management information TMN management facilities presented at the F interface SECTION 13 M.3600 (Blue Book No. M.36) M.3602 (Blue Book No. 1.602) M.3603 (Blue Book No. 1.603) M.3604 (Blue Book No. 1.604) M.3605 (Blue Book
40、No. 1.605) M.3620 M.3640 M.3660 ISDN interface management services Integrated services digital networks Principles for the maintenance of ISDNs Application of maintenance principles to ISDN subscriber installations Application of maintenance principles to ISDN basic rate access Application of mainte
41、nance principles to ISDN primary rate access Application of maintenance principles to static multiplexed ISDN basic rate access Principles for the use of ISDN test calls, systems, and responders Management of the D-channel - data link, link and network layer SECTION 14 M.4010 (Blue Book No. M.750) M
42、.4020 (Blue Book No. M.760) Common channel signalling systems Inter-Administration agreements on Common Channel Signalling System No. 6 Transfer link for Common Channel Signalling System No. 6 (This Recommendation in th Fascicle IV. 1 will be renumbered into M.4020 when revised) Blue Book, M.4030 (B
43、lue Book No. M.761) M.4040 (Blue Book No. M.762) M.4100 (Blue Book No. M.782) M.4110 (Blue Book No. M.770) Transmission characteristics for setting up and lining up a transfer link for Common Channel Signalling System No. 6 (analogue version) Maintenance of Common Channel Signalling System No. 6 (Th
44、is Recommendation in the Blue Book, Fascicle IV. 1 will be renumbered into M.4040 when revised) Maintenance of Common Channel Signalling System No. 7 (This Recommendation in the Blue Book, Fascicle IV.1 will be renumbered into M.4100 when revised) Inter-Administration agreements on Common Channel Si
45、gnalling System No. 7 8 Recommendation M.10 (10192) CCITT RECMN*M.LO 92 0 4862571 0578677 287 - 4.2 Recommendations N.1 to N.90 Maintenance of international sound-programme and television transmission circuits Rec. No. SECTION 1 International sound-programme transmission 1.1 International sound-prog
46、ramme transmissions - Definitions N. 1 (Rev. 1992) N.2 N. 3 Control circuits N.4 N.5 Definitions for application to international sound-programme transmissions Different types of sound-programme circuit Definition and duration of the line-up period and the preparatory period Sound-programme control,
47、 sub-control and send reference stations 1.2 Setting-up, lining-up and monitoring the international sound-programme links and connections N. 10 (Rev. 1992) N. 1 1 N.12 N.13 Limits for the lining-up of international sound-programme links and connections Essential transmission performance objectives f
48、or international sound-programme centres (ISPC) Measurements to be made during the line-up period that precedes a sound-programme transmission Measurements to be made by the broadcasting organizations during the preparatory period N. 15 N. 16 Identification signal N. 17 Monitoring the transmission N
49、. 18 Maximum permissible power during an international sound-programme transmission Monitoring for charging purposes, releasing 1.3 Lining-up and maintenance of international sound-programme circuits N.21 N.23 Limits and procedures for the lining-up of a sound-programme circuit Maintenance measurements to be made on international sound-programme circuits SECTION 2 International television transmission 2.1 International television transmissions - Definitions and responsibilities N.5 1 N.52 N.54 N.55 (Rev. 1992) Definitions for application to international television transmissions Multiple
