ITU-T G.100.1-2015 SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS International telephone con

pdf标准 ITU-T G.100.1-2015 SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS International telephone con

36 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 G.100.1-2015  SERIES G: TRANSMISSION SYSTEMS AND MEDIA,  DIGITAL SYSTEMS AND NETWORKS  International telephone con 第 1 页 ITU-T G.100.1-2015  SERIES G: TRANSMISSION SYSTEMS AND MEDIA,  DIGITAL SYSTEMS AND NETWORKS  International telephone con 第 2 页 ITU-T G.100.1-2015  SERIES G: TRANSMISSION SYSTEMS AND MEDIA,  DIGITAL SYSTEMS AND NETWORKS  International telephone con 第 3 页 ITU-T G.100.1-2015  SERIES G: TRANSMISSION SYSTEMS AND MEDIA,  DIGITAL SYSTEMS AND NETWORKS  International telephone con 第 4 页 ITU-T G.100.1-2015  SERIES G: TRANSMISSION SYSTEMS AND MEDIA,  DIGITAL SYSTEMS AND NETWORKS  International telephone con 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 14:40:06上传分享

国外分类,ITU,ITU-T(电信标准分局),itu,series,transmission,systems,and,media,digital,systems,and,networks,international,telephone,con

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 ITU-T U n i o n G.100.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS International telephone connections and circuits – Transmission planning and the E-model The use of the decibel and of relative levels in speechband telecommunications Recommendation ITU-T G.100.1 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS Transmission planning and the E-model General Recommendations on the transmission quality for an entire international telephone connection General characteristics of national systems forming part of international connections General characteristics of the 4-wire chain formed by the international circuits and national extension circuits General characteristics of the 4-wire chain of international circuits; international transit General characteristics of international telephone circuits and national extension circuits Apparatus associated with long-distance telephone circuits Transmission plan aspects of special circuits and connections using the international telephone connection network Protection and restoration of transmission systems Software tools for transmission systems 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 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS DIGITAL TERMINAL EQUIPMENTS DIGITAL NETWORKS DIGITAL SECTIONS AND DIGITAL LINE SYSTEM MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE – GENERIC AND USERRELATED ASPECTS TRANSMISSION MEDIA CHARACTERISTICS DATA OVER TRANSPORT – GENERIC ASPECTS PACKET OVER TRANSPORT ASPECTS ACCESS NETWORKS For further details, please refer to the list of ITU-T Recommendations. G.100–G.199 G.100–G.109 G.110–G.119 G.120–G.129 G.130–G.139 G.140–G.149 G.150–G.159 G.160–G.169 G.170–G.179 G.180–G.189 G.190–G.199 G.200–G.299 G.300–G.399 G.400–G.449 G.450–G.499 G.600–G.699 G.700–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 G.9000–G.9999 Recommendation ITU-T G.100.1 The use of the decibel and of relative levels in speechband telecommunications Summary Recommendation ITU-T G.100.1 provides the definition for different logarithmic power level measurement units in current use in telecommunication systems. This Recommendation also provides the relationship amongst those units and usage examples. The text herein is a merger of information that has been previously dispersed over several publications and supersedes the contents of: Recommendation ITU-T B.12, Annex A of Recommendation ITU-T G.100, Annex A of Recommendation ITU-T G.101, Annex B of Recommendation ITU-T Q.551, and clause 3.8 of Recommendation ITU-T G.101. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.100.1 2001-11-29 12 11.1002/1000/5596 2.0 ITU-T G.100.1 2015-06-29 12 11.1002/1000/12504 ____________________ * To access the Recommendation, type the URL http://handle.itu.int/ in the address field of your web browser, followed by the Recommendation's unique ID. For example, http://handle.itu.int/11.1002/1000/11 830-en. Rec. ITU-T G.100.1 (06/2015) i FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field 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 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 appl

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