1、BRITISH STANDARD AEROSPACE SERIES Elements of electrical and optical connection Test methods Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator The European Standard EN 2591-707:2001 has the status ofa British Standard ICs 49.035; 29.120.20 BS EN 25
2、91 -707:2001 Wk present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committ
3、ee can be obtained on request to its secretary. Cr oss-r e fer enc e s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or b
4、y using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer imm
5、unity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 and 3, and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 14 December 2001 ISBN O 580 38775 5 EU
6、ROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-707 November 2001 ICs 49.060 English version Aerospace series - Elements of electrical and optical connection - Test methods - Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator Srie arospatial
7、e - Organes de connexion lectrique et optique - Mthodes dessais - Partie 707: Organes lectriques - Mesure de limpdance caractristique dun bus ou dune terminaison de drivation Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prfverfahren - Teil 707: Elektrische Elemente - Messung
8、des Wellenwiderstands eines Bus- oder Stichleitungsabschlusses This European Standard was approved by CEN on 4 July 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without
9、 any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made b
10、y translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Irel
11、and, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in a
12、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2591-707:2001 E EN 2591-707:2001 (E) Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA) . After inquiries and votes carried out in accordance with the rules
13、 of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text
14、 or by endorsement, at the latest by May 2002, and conflicting national standards shall be withdrawn at the latest by May 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Be
15、lgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 2 EN 2591-707:2001 (E) 1 Scope This standard specifies a method of measuring the characteristic impedance of: - a p
16、ermanent bus terminator; - a removable bus or stub terminator. It shall be used together with EN 2591-100. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in th
17、e text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to a
18、pplies. EN 2591-100 Aerospace series - Elements of electrical and optical connection - Test methods - Part 100: General 1) 3 Preparation of specimens 3.1 Permanent bus terminator It shall be wired as stipulated in the product standard. 3.2 It shall be terminated on its connector as stipulated in the
19、 product standard. Removable bus or stub terminator 3.3 Unless specified in the technical specification, the following details shall be stated - impedance value, Zo; - test temperature. 4 Method The test is carried out using an impedance meter. The test signal shall be sinusodal, frequency 75 kHz to
20、 1 MHz, amplitude 2 0,3 V r.m.s. 5 Impedance Zo shall comply with the value specified in the technical specification. Req u i remen t 1) Published as AECMA Prestandard at the date of publication of this standard 3 BS EN 2591-707:2001 BSI 389 Chiswick High Road Lon don w4 4AL BSI is the independent n
21、ational body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Re vi si ons British Standards are updated by amendment or revision. Users of British Standards should make sure that they pos
22、sess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identi
23、ty of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, internatio
24、nal and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: orders&-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the
25、 BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI ele
26、ctronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 71 11. Fax: +44 (0)20 8996 7048. Email: infomi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial
27、 discounts on the purchase price of standards. For details ofthese and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 700 1. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can be found at h
28、ttp:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, ofthe publications of the international standardization bodies. Except as permitted under the Copyright, Desig
29、ns and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronic, photocopying, recording or otherwise -without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard
30、, ofnecessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then the prior written permission ofBSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyright&-.
