ISO/IEC INTERNATIONAL STANDARD 14833 First edition 1996-03-15 Information technology Data interchange on 12,7 mm 128-track magnetic tape cartridges DLT 3 format Technologies de I'information - Echange de donnees sur cartouches de bande magnétique de 12.7mm, 128 pistes-Format DLT3 IEC Tso Reference number ISO/IEC14833:1996(E) Copyright Intemational Organization for Standardization d by IHS se with Not for Resale IS0/IEC 14833:1996 (E) Contents Page 1 Section l: General 1 Scope 1 2 Conformance 1 2.1 Magnetic tape cartridges 1 1 2.2 Generating systems 2.3 Receiving systems 1 3 References 1 4 Definitions 1 1 4.1 Average Signal Amplitude 1 4.2 azimuth 4.3 back surface 1 4.4 Beginning-Of-Tape marker (BOT) 1 2 4.5 byte 4.6 cartridge 2 4.7 Cyclic Redundancy Check (CRC) character 2 4.8 Early Warning (EW) 2 4.9 Error-Detecting Code (EDC) 2 4.10 End-Of-Tape marker (EOT) 2 4.11 Entity 2 4.12 Error-Correcting Code (ECC) 2 2 4.13 flux transition position 4.14 flux transition spacing 2 2 4.15 Logical Block 4.16 logical track 2 4.17 magnetic tape 2 4.18 Master Standard Reference Tape 2 4.19 object 2 4.20 page 2 2 4.21 physical block 4.22 physical recording density 2 CISO/EC1996 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, inciuding photocopying and microfilm, without permission in writing from the publisher. ISO/IEC Copyright Office * Case Postale 56 * CH-1211 Geneve 20 * Switzerland Printed in Switzerland i n for Standardizatior Not for Resale IS0/IEC 14833:1996 (E) @ISO/IEC 4.23 physical track 4.24 Record 2 4.25 Reference Edge 2 4.26 Reference Field 2 4.27 Secondary Standard Reference Tape 2 4.28 Standard Reference Amplitude (SRA) 2 4.29 Standard Reference Current 2 4.30 Test Recording Current 2 4.31 Typical Field 3 5 Conventions and notations 3 5.1 Representation of numbers 3 3 5.2 Dimensions 5.3 Names 3 5.4 Acronyms 3 3 6 Environment and safety 6.1 Cartridge and tape testing environment 3 6.2 Cartridge operating environment 4 6.3 Cartridge storage environment 4 6.4 Safety 4 6.4.1 Safeness 4 4 6.4.2 Flammability 6.5 Transportation 4 Section 2: Requirements for the unrecorded tape 4 7 Mechanical and electrical requirements 4 4 7.1 Material 7.2 Tape length 4 7.3 Width 4 7.4 Total thickness 7.5 Thickness of the base material 5 7.6 Thickness of the magnetic coating 5 7.7 Thickness of the back coating 5 5 7.8 Discontinuity 7.9 Longitudinal curvature 7.9.1 Requirement 5 7.9.2 Procedure 5 5 7.10 Out-of-Plane distortions 5 7.11 Cupping 7.12 Roughness of the coating surfaces 5 7.12.1 Roughness of the back coating surface 55 7.12.2 Roughness of the magnetic coating surface 5 7.13 Coating adhesion 7.14 Layer-to-layer adhesion 6 zationfor Standardization Not fr esale