1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T A.12 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Corrigendum 1 (06/2015) SERIES A: ORGANIZATION OF THE WORK OF ITU-T Identification and layout of ITU-T Recommendations Corrigendum 1: Update to the title of the L-series
2、Recommendation ITU-T A.12 (2008) Corrigendum 1 Rec. ITU-T A.12 (2008)/Cor.1 (06/2015) i Recommendation ITU-T A.12 Identification and layout of ITU-T Recommendations Corrigendum 1 Update to the title of the L-series Summary Recommendation ITU-T A.12 provides information on the designation of letter s
3、eries for ITU-T Recommendations. Corrigendum 1 corrects the title of the L-series of Recommendations to reflect the full mandate of ITU-T Study Group 5; this had been missed during WTSA-12. History Edition Recommendation Approval Study Group 1.0 ITU-T A.12 2000-10-06 TSAG 11.1002/1000/5279 2.0 ITU-T
4、 A.12 2004-10-14 TSAG 11.1002/1000/7422 3.0 ITU-T A.12 2008-10-30 TSAG 11.1002/1000/9643 3.1 ITU-T A.12 (2008) Cor.1 2015-06-05 TSAG 11.1002/1000/12526 ii Rec. ITU-T A.12 (2008)/Cor.1 (06/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the f
5、ield of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standard
6、izing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is cover
7、ed by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indica
8、te both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved
9、 when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PRO
10、PERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether assert
11、ed by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned th
12、at this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec
13、. ITU-T A.12 (2008)/Cor.1 (06/2015) 1 Recommendation ITU-T A.12 Identification and layout of ITU-T Recommendations Corrigendum 1 Update to the title of the L-series Update the title of the L-Series from: Construction, installation and protection of cables and other elements of outside plant to: Envi
14、ronment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant Printed in Switzerland Geneva, 2015 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Seri
15、es E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Seri
16、es J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant
17、 Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals and subjective and objective assessment methods Series Q Switching
18、and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
