1# 99hEh50 E06T59h E6 655TT INTERNATIONAL ISO/IEC STANDARD 11559 First edition 1993-08-15 Information technology --- Data interchange on 12,7 mm wide 18-track magnetic tape cartridges --- Extended format Technologies de I'information - Echange de donnees sur cartouche de EC Referencenumber ISO/IEC11559:1993(E) right International Organization for Standardization E6 655tT E06T59h 92 29E0 ISO/IEC 11559:1993 (E) Contents Page Section 1 - General 1 Scope 1 2 1 Conformance 2.1 1 Magnetic tape cartridge 2.2 Generating system 1 2.3 Receiving system 1 3 Normative references 2 Definitions 2 4 4.1 aigorithm 2 4.2 Average Signal Amplitude 2 4.3 back surface 2 4.4 Beginning of Tape (BOT) 2 4.5 byte 2 4.6 cartridge 2 4.7 CyclicRedundancyCheck Character 2 4.8 Data Block 2 4.9 Data Records 4.9.1 Processed Data Record (PDR) 2 4.9.2 Host Data Record 2 4.9.3 Logical Data Record (LDR) 3 4.9.4 User Data Record (UDR) 3 4.10 Error Correcting Code 3 3 4.11 flux transition position 4.12 flux transition spacing 3 4.13 magnetic tape 3 4.14 MasterStandardReferenceTape 3 4.15 Packet 3 4.16 Packet Identifier 3 4.17 Packet Trailer 3 ISO/IEC1993 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 per mission in writing from the publisher. ISO/IEC Copyright Office · Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland cation for Standardizatior networking permited without license from IHS Not for Resale 11559 93 4851903 0543468 652 ISO/IEC 11559:1993 (E) 4.18 pad byte 3 4.19 3 physical recording density 4.20 Postamble 3 4.21 Preamble 3 4.22 3 Processed Data 4.23 processing 3 4.24 Reference Field 3 4.25 Secondary Standard Reference Tape 3 4.26 Standard Reference Amplitude (SRA) 4 4 4.27 Standard Reference Current 4 4.28 Test Recording Current 4.29 track 4 4.30 Typical Field 4 4.31 transformation 4 Conventions and notations 4 5 5.1 Representation of numbers 4 5.2 Names 4 5.3 Acronyms 4 6 Environment and safety 5 6.1 Cartridge/Tape testing environment 5 6.2 Cartridge operating environment 5 6.3 Cartridge storage environment 5 6.4 Safety requirements 5 Safeness .5 6.4.1 Flammability 5 6.4.2 6.5 Transportation 5 Section 2 . Characteristics of the tape 6 Characteristics of the tape 6 7 7.1 Material 6 7.2 Tape length 6 7.3 6 Tape width 7.4 6 Tape discontinuity 7.5 Total thickness of tape 6 7.6 Base material thickness 6 7.7 Longitudinal curvature 6 7.8 Out-of-plane distortions 6 7.9 Cupping 6 7.10 Dynamic frictional characteristics 7 7.10.1 7 7.10.2 Frictional drag between the tape recording surface and ferrite after environmental cycling 7 7.11 Coating adhesion 7 7.12 Flexural rigidity 7.13 Electrical resistance of coated surfaces 8 7.14 Tape durability 6 7.15 Inhibitor tape 9 ii rerouconrneworkingpemited withutlienfomH Not for Resale