ITU-T D.8-1988 租用国际端到端数字电路开放专用业务的特殊条件 Special conditions for the lease of international end-to-end digital circuits for private service

pdf标准 ITU-T D.8-1988 租用国际端到端数字电路开放专用业务的特殊条件 Special conditions for the lease of international end-to-end digital circuits for private service

3 页 0 下载 1 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 D.8-1988 租用国际端到端数字电路开放专用业务的特殊条件 Special conditions for the lease of international end-to-end digital circuits for private service 第 1 页 ITU-T D.8-1988 租用国际端到端数字电路开放专用业务的特殊条件 Special conditions for the lease of international end-to-end digital circuits for private service 第 2 页 ITU-T D.8-1988 租用国际端到端数字电路开放专用业务的特殊条件 Special conditions for the lease of international end-to-end digital circuits for private service 第 3 页
本标准由 5zbz2018-09-16 14:48:40上传分享

国外分类,ITU,ITU-T(电信标准分局),itu,租用,国际,数字,电路,数字电路,开放,专用,业务,特殊,条件,special,conditions,for,the,lease,of,international,end,to,end,digital,circuits,for,private,service

INTERNATIONAL TELECOMMUNICATION UNION )45 4 $ TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU '%.%2!, 4!2)&& 02).#)0,%3 30%#)!, #/.$)4)/.3 &/2 4(% ,%!3% /& ).4%2.!4)/.!, %.$ 4/ %.$ $)')4!, #)2#5)43 &/2 02)6!4% 3%26)#% )45 4 Recommendation $ (Extract from the "LUE "OOK) NOTES 1 ITU-T Recommendation D.8 was published in Fascicle II.1 of the Blue Book. This file is an extract from the Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, the contents of the file are identical to the Blue Book version and copyright conditions remain unchanged (see below). 2 In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. © UIT 1988, 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. Recommendation D.8 Fascicle II.1 - Rec. D.8 SPECIAL CONDITIONS FOR THE LEASE OF INTERNATIONAL END-TO-END DIGITAL CIRCUITS FOR PRIVATE SERVICE (Melbourne, 1988) 1 Preamble This Recommendation, which should be applied in conjunction with the provisions of Recommendation D.1, sets out the special conditions applicable to the leasing of international end-to-end digital circuits for private service. 2 Definition An end-to-end digital leased circuit is one which uses exclusively digital transmission technology for the routing of information in the form of bit streams. The circuit may be established by conventional physical transmission media (coaxial cables or radio-relay links), by optical fibre cables, or by satellite links. It may also consist of sections combining the different media indicated above. 3 Bit-rates offered Circuits having the following standard classes of basic bit rates may be provided by Administrations for their customers: - 2400 bit/s - 4800 bit/s - 9600 bit/s - 32 kbit/s - 56/64 kbit/s - 1544/2048 kbit/s. By agreement between Administrations, circuits at bit rates other than those mentioned above may be offered to meet specific customer requirements. 4 Tariff principles Tariffs for end-to-end digital leased circuits should, in principle, be based on the following general principles: a) when establishing tariffs, the 56/64 kbit/s leased circuit should be taken as the reference service; b) a rational relationship should be established between the tariffs applicable to different classes of bit rates, with special attention to: - the structure of the costs incurred, - the capacity placed at the customer’s disposal, - service quality parameters; c) Administrations may adopt different tariff structures to take into account both the different media and/or facilities used, and the varying costs of national and/or local extensions which may be needed to provide the service. Fascicle II.1 - Rec. D.8 1

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