BS-ISO-5652-1984-EN-25652-1991.pdf
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1、BRITISH STANDARD BS ISO 5652:1984 EN 25652:1991 Incorporating Amendment No.1 Implementation of ISO 5652:1984 Information processing 9-Track, 12,7 mm (0.5 in) wide magnetic tape for information interchange Format and recording, using group coding at 246 cpmm (6 250 cpi) The European Standard EN 25652
2、:1991 has the status of a British Standard. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5652:1984 This British Standard, having been prepared under the direction of the Information Technology System Standards Policy Committee, was
3、 published under the authority of the Board of BSI and comes into effect on 30 November 1990 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference IST/4 Draft for comment 89/64420 DC ISBN 0 580 19162 1 Committees responsible for this British Standard The p
4、reparation of this British Standard was entrusted by the Information Technology Systems Standards Policy Committee (IST/-) to Technical Committee IST/4, upon which the following bodies were represented: British Computer Society British Telecommunications plc Department of Trade and Industry (Nationa
5、l Physical Laboratory) EEA (the Electronics and Business Equipment Association) HM Customs and Excise Institute of Quality Assurance Institution of Electrical Engineers Institution of Mechanical Engineers Post Office Amendments issued since publication Amd. No.Date of issueComments 7136July 1992Indi
6、cated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5652:1984 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Forewordiii Text of EN 256521 Licensed Copy:
7、 sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5652:1984 ii BSI 12-1999 National foreword This British Standard reproduces verbatim ISO 5652:1984 and implements it as the UK national standard. In 1991 the European Committee for Standardization (CE
8、N) accepted ISO 5652:1984 as European Standard EN 25652:1991. This British Standard is published under the direction of the Information Technology Systems Standards Policy Committee whose Technical Committee IST/4 has the responsibility to: aid enquirers to understand the text; present to the respon
9、sible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from B
10、SI Sales Department, BSI, Linford Wood, Milton Keynes, MK14 6LE. 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 immunity
11、from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, page 2, the ISO title page, pages ii to iv, pages 1 to 18 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorp
12、orated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 25652 December 1991 UDC 681.3.04:681.327.64 Descriptors: Da
13、ta processing, information interchange, magnetic recording, magnetic tapes, recording tracks, recording characteristics, track formats, codification English version Information processing 9-Track, 12,7 mm (0.5 in) wide magnetic tape for information interchange Format and recording, using group codin
14、g at 246 cpmm (6 250 cpi) (ISO 5652:1984 edition 2) Traitement de linformation Bande magntique 9 pistes de 12,7 mm (0,5 in) de large pour lchange dinformation Format et enregistrement utilisant des codages de group 246 cpmm (6 250 cpi) (ISO 5652:1984 dition 2) Informationsverarbeitung 9-Spur-Magnetb
15、and 12,7 mm (0,5 in) fr den Informationsaustausch Format und Aufzeichnung in GCR-Verfahren mit 246 Zeichen/mm (6250 Zeichen/in) (ISO 5652:1984 2. Ausgabe) This European Standard was approved by CEN on 1991-12-28. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
16、te the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exis
17、ts in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bod
18、ies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secr
19、etariat: rue de Stassart 36, B-1050 Brussels CEN 1991 Copyright reserved to all CEN members Ref. No. EN 25652:1991 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 5652:1984 (E) -4 BSI 12-1999 Foreword The Technical Board has decided to
20、 submit the International Standard ISO 5652:1984, edition 2 “Information processing 9-track, 12,7 mm (0.5 in) wide magnetic tape for information interchange Format and recording, using group coding at 246 cpmm (6 250 cpi)” for Formal Vote. The standard has been accepted. For the time being, this doc
21、ument exists only in the English and French version. According to the CEN/CENELEC Common Rules, the following countries are bound to implement this standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden
22、, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 5652:1984 (E) ii BSI 12-1999 Contents Page F
23、orewordiii 1 Scope and field of application1 2 References1 3 Definitions1 4 Operating and transportation conditions3 5 Recording3 6 Tracks5 7 Data representation5 8 Data formatting6 9 Recording of groups on tape10 10 Control sub-groups10 11 Storage block11 12 Tape format12 13 Interchange criteria13
24、Annex A Transportation15 Annex B Measurement of flux transition spacing15 Figure 1 Output signal waveform of amplifier-limiter-differentiator17 Figure 2 Block diagram for calibration of read chain18 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:16:32 GMT+00:00 2006, Uncontrolled Copy, (c
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