ITU-T Y.1351-2004 Terms and definitions for synchronous digital hierarchy (SDH) networks

pdf标准 ITU-T Y.1351-2004 Terms and definitions for synchronous digital hierarchy (SDH) networks

24 页 0 下载 0 浏览 0 评论 0 收藏 3.0分
温馨提示:当前标准最多只能预览 10 页,若标准超出了 10 页,请下载原标准以浏览全部内容。
ITU-T Y.1351-2004  Terms and definitions for synchronous digital hierarchy (SDH) networks  第 1 页 ITU-T Y.1351-2004  Terms and definitions for synchronous digital hierarchy (SDH) networks  第 2 页 ITU-T Y.1351-2004  Terms and definitions for synchronous digital hierarchy (SDH) networks  第 3 页 ITU-T Y.1351-2004  Terms and definitions for synchronous digital hierarchy (SDH) networks  第 4 页 ITU-T Y.1351-2004  Terms and definitions for synchronous digital hierarchy (SDH) networks  第 5 页
下载标准到电脑,方便使用
还有 5 页未阅读,继续阅读
本标准由 5zbz2018-09-16 14:15:28上传分享

国外分类,ITU,ITU-T(电信标准分局),itu,terms,and,definitions,for,synchronous,digital,hierarchy,sdh,networks

INTERNATIONAL TELECOMMUNICATION UNION ITU-T G.780/Y.1351 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2004) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital terminal equipments – Principal characteristics of multiplexing equipment for the synchronous digital hierarchy SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT GENERATION NETWORKS Internet protocol aspects – Transport Terms and definitions for synchronous digital hierarchy (SDH) networks ITU-T Recommendation G.780/Y.1351 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIERTRANSMISSION SYSTEMS INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TESTING EQUIPMENTS TRANSMISSION MEDIA CHARACTERISTICS DIGITAL TERMINAL EQUIPMENTS General Coding of analogue signals by pulse code modulation Coding of analogue signals by methods other than PCM Principal characteristics of primary multiplex equipment Principal characteristics of second order multiplex equipment Principal characteristics of higher order multiplex equipment Principal characteristics of transcoder and digital multiplication equipment Operations, administration and maintenance features of transmission equipment Principal characteristics of multiplexing equipment for the synchronous digital hierarchy Other terminal equipment DIGITAL NETWORKS DIGITAL SECTIONS AND DIGITAL LINE SYSTEM QUALITY OF SERVICE AND PERFORMANCE - GENERIC AND USER-RELATED ASPECTS TRANSMISSION MEDIA CHARACTERISTICS DIGITAL TERMINAL EQUIPMENTS DIGITAL NETWORKS For further details, please refer to the list of ITU-T Recommendations. G.100–G.199 G.200–G.299 G.300–G.399 G.400–G.449 G.450–G.499 G.500–G.599 G.600–G.699 G.700–G.799 G.700–G.709 G.710–G.719 G.720–G.729 G.730–G.739 G.740–G.749 G.750–G.759 G.760–G.769 G.770–G.779 G.780–G.789 G.790–G.799 G.800–G.899 G.900–G.999 G.1000–G.1999 G.6000–G.6999 G.7000–G.7999 G.8000–G.8999 ITU-T Recommendation G.780/Y.1351 Terms and definitions for synchronous digital hierarchy (SDH) networks Summary This Recommendation provides terms, definitions, and abbreviations used in synchronous digital hierarchy (SDH) Recommendations. Physical layer terminology, synchronization-related terminology, and terms applicable to multiple technologies in addition to SDH are not included. This Recommendation contains terminology from many of the same source SDH Recommendation, but the changes were so exhaustive that one should not consider this as a simple revision of the 1999 version of ITU-T Rec. G.780. The goal of this Recommendation is to be a single normative source for terms in this subject area. Source ITU-T Recommendation G.780/Y.1351 was approved on 22 July 2004 by ITU-T Study Group 15 (2001-2004) under the ITU-T Recommendation A.8 procedure. Keywords Definitions, SDH, Synchronous Digital Hierarchy, terminology. ITU-T Rec. G.780/Y.1351 (07/2004) i FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. 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 standardizing 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 covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-T's 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 indicate 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 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. INTELLE

给标准打分
您好可以输入 255 个字符
本站的中文名字叫什么( 答案:找标准 )
评论列表
  • 暂时还没有评论,期待您的金玉良言