1、CCITT RECMN+M.B5 92 D Y862573 0578732 LO3 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE M.85 (1 0/92) MAINTENANCE: INTRODUCTION AND GENERAL PRINCIPLES OF MAINTENANCE AND MAINTENANCE ORGANIZATION FAULT REPORT POINTS I Recommendation M.85
2、CCITT RECMN*M*BS 72 YB62571 0578733 048 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 and tariff questions and issuing Recommendatio
3、ns on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCiTT which meets every foiir years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT between Pl
4、enary Assemblies is covered by the procedure laid down in CCITT Resolution No. 2 (Melbourne, 1988). Recommendation M.85 was prepared by Study Group IV and was approved under the Resolution Nu. 3 procedure on the 5th of October 1992. CCITT NOTE In this Recommendation, the expression “Administration”
5、is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. O ITU 1993 Ali rights reserved. No part of this publication may be reproduced or utiliLed in any form or by any means, electronic or mcchmical, including photocopying and microfilm,
6、 without permision in writing from the ITU. CCITT RECNN*N.85 92 48b259L 0578734 T84 W Recommendation M.85 FAULT REPORT POINTS (I 992) Abstract This Recommendation provides a generic definition of a Fault report point, identifies its roles, responsibilities, and facilities required to perform the fun
7、ction. The Recommendation identifies further Recommendations that contain details of applications of the Fault report point function. Keywords - contact point; - fault report; - fault report point; - maintenance. 1 Definition The generic definition of a Fault report point is: an element within the g
8、eneral maintenance organization for telecommunication services at each international centre or common for more than one international centre. A Fault report point is equipped with all the necessary facilities and arranged in such a way that it can receive fault reports) relating to one or more type
9、of network or service entitiedobjects from different sources or make such fault reports to other maintenance elements as appropriate, and initiate fault localizatiorddiagnosis and clearing operations. 2 Responsibilities and functions The Fault report point is responsible for the following functions:
10、 - receiving the fault report; - recording the fault report; - performing a preliminary diagnosis as to which maintenance element is appropriate for clearing the fault; initiating detailed diagnosidclearance by the appropriate maintenance element; providing information and advising other maintenance
11、 elements as appropriate; being informed of progress of diagnosis and clearance; - - - - receiving clearance information; - - - notifying clearance to point of origin for the fault report; requesting faulty entity/object to be restored to service; arranging for analysis of faults as necessary; i) A
12、Fault report is the communication of a fault or problem (see 4 3.2 of Recommendation M.20 i) by means of voice communication (by telephone) or by electronic text communication or by a combination of the foregoing media. Recommendation M.85 (10/92) 1 CCITT RECMN*M.85 92 m 48b259L 0578735 910 - - - id
13、entifying repeated faults and taking appropriate action; forwarding statistics of fault information to the network analysis point for long-term trend analysis; escalation of fault reports if maintenance targets are in jeopardy or exceeded. 3 Facilities Fault report points shall be equipped with the
14、following facilities: - Communications facilities e.g. public access and direct service circuits for - telephone; - telex, teletext; - facsimile; - electronic mail; - electronic data transfer; - other electronic text communication; - etc. as appropriate to the specific function. - Access to informat
15、ion on - network and/or service entitiedobjects; - network and/or service configuration; - network and/or service status; - network and/or service fault management. Access to appropriate test and diagnosis functions. - 4 Types of Fault report point A more detailed description of specific application
16、s of the Fault report point function can be found in the following Recommendations: M.2130 (Q 1) M.715 M.716 M.710 M.760 (Q 4.3) M.762 (Q 3) M.4100 (0 3) M.1012 (Q 3.1) Reference Operational procedures in locating and clearing transmission faults (Fault report point in a repeater station) Fault repo
17、rt point (circuit) Fault report point (network) General maintenance organization for the international automatic and semi-automatic telephone service Transfer link for Common Channel Signalling System No. 6 Maintenance of Common Channel Signalling System No. 6 (administrative control) Maintenance of
18、 Common Channel Signalling System No. 7 (functions and responsibilities of the administrative control) Circuit control stations for leased and special circuits Li1 CCITT Recommendation M.20 Maintenance philosophy for telecommunication network. 2 Recommendation M.85 (10/92) CCITT RECMN*N.B5 92 48b25L 05787Lb 857 = Printed in Switzerland Geneva, 1993
