1、 TECHNICAL REPORT ISO/IECTR 24746TYPE 2 First edition2005-08Information technology Generic cabling for customer premises Mid-span DTE power insertion ISO/IEC 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, e
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36、ssauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caCAN/CSA-ISO/IEC TR 24746:06Information technology Generic cabling for customer premises Mid-span DTE power insertionPrepared by InternationalOrganizationforStandardization/ International Electrotechnica
37、l CommissionReviewed byCAN/CSA-ISO/IEC TR 24746:06Information technology Generic cabling forcustomer premises Mid-span DTE power insertionDecember 2006 Canadian Standards Association CSA/3CAN/CSA-ISO/IEC TR 24746:06Information technology Generic cabling for customer premises Mid-span DTE power inser
38、tionCSA PrefaceStandards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1
39、on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and T
40、elephone Consultative Committee (ITU-T).At the time of publication, ISO/IEC TR 24746:2005 is available from ISO and IEC in English only. CSA will publish the French version when it becomes available from ISO and IEC.This Technical Report was reviewed by the CSA TCIT under the jurisdiction of the Str
41、ategic Steering Committee on Information Technology and deemed acceptable for use in Canada. (A committee membership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approval and
42、publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Sales representative. This Standard has been formally approved, without modification, by the Technical Committee and has been approved as a National Standard of Canada by the Standards Cou
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44、 text, they should be interpreted as “this National Standard of Canada”.Inquiries regarding this National Standard of Canada should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4000www.csa.caTo purchase CSA Stan
45、dards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044.TECHNICAL REPORT ISO/IECTR 24746TYPE 2 First edition2005-08Information technology Generic cabling for customer premises Mid-span DTE power insertion Reference number ISO/IEC TR
46、24746:2005(E) - 2 - TR 24746 ISO/IEC:2005(E) CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope 6 2 Normative reference .6 3 Abbreviations .6 4 General6 4.1 Location of Mid-Span DTE Power insertion devices 6 4.2 Mid-Span DTE Power device allocation 6 TR 24746 ISO/IEC:2005(E) - 3 - INFORMATION TECHNOLOGY GEN
47、ERIC CABLING FOR CUSTOMER PREMISES MID-SPAN DTE POWER INSERTION FOREWORD 1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate i
48、n the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and no
49、n-governmental, in liaison with ISO and IEC, also take part in the work. 2) In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. 3) All users should ensure that they have the latest edition of this publication. 4) No liability shall attach to IEC or ISO
