ISO/IEC INTERNATIONAL STANDARD 22050 First edition 2002-10-01 Information technology Data interchange on 12,7 mm, 384-track magnetic tape cartridges Ultrium-1 format Technologies de I'information Echange de données sur cartouches a bande magnétique 12,7 mm, 384 pistes - Format Ultrium-1 Reference number ISO/IEC 22050:2002(E) TEC @ISO/IEC2002 Copyright International Organization for Standardization ted without license from IHS Not for Resale ISO/IEC22050:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the @ISO/IEC2002 Al 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, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland Copyright International Oorganization for Standardization @ISO/IEC2002-Allrightsreserved or networking permitted without license from IHS Not for Resale ISO/IEC22050:2002(E) Contents Section 1 - General 1 Scope 1 2 Conformance 1 2.1 Magnetic tape cartridge 1 2.2 Generating system 1 2.3 Receiving system 1 3 Normative references 1 Terms and definitions 2 4.1 Access Point 22 4.2 algorithm 4.3 algorithmically processed data 2 4.4 a.c.erase 2 4.5 Average Signal Amplitude 2 4.6 back surface 2 4.7 Beginning of Tape (BOT) 2 4.8 Beginning of Wrap (BOW) 2 4.9 bit 2 4.10 bit cell 2 4.11 Broad Band Signal-to-Noise Ratio (BBSNR) 22 4.12 byte 4.13 cartridge 2 4.14 Channel bit 4.15 Codeword 3 4.16 Codeword Pair 3 4.17 Codeword Quad (CQ) 3 4.18 CQ Set 3 4.19 cyclic redundancy check (CRC) character 3 4.20 Data Set 3 4.21 Data Set Information Table (DSIT) 3 4.22 End of Data (EOD) 3 4.23 End of Tape (EOT) 3 4.24 End of Wrap (EOW) 3 4.25 Error Correcting Code (ECC) 3 4.26 File Mark 3 4.27 flux transition position 3 4.28 flux transition spacing 3 4.29 forward tape motion 3 4.30 header 3 4.31 Housekeeping Data Set 3 4.32 logical forword 4 4.34 Logical Point 4 4.35 magnetic tape 4 4.36 Master Standard Reference Tape (MSRT) 4 4.37 LTO Cartridge Memory (LTO CM) 4 4.38 Optimum Recording Current 4 CpyrighntenaliaganizationfoSandadizatioreserved ii r networking permited without license from IHS Not for Resale ISO/IEC 22050:2002(E) 4.39 physical end of tape 4 4.40 physical forward 4 4.41 physical reverse 4 4.42 pre-record condition 4 4.43 processed data 4 4.44 Processed Record 4 4.45 Processing (Compression) 4 4.46 Protected Record 4 4.47 Record 5 4.48 recorded element 5 4.50 Reprocessing (Decompression) 5 4.51 reverse tape motion 5 4.52 run length limited encoding (RLL) 5 4.53 Secondary Standard Reference Tape (SSRT) 5 4.54 servo acquisition region 5 4.55 Standard Reference Amplitude (SRA) 5 4.56 Symbol 5 4.57 Synchronised Codeword Quad (SCQ) 5 4.58 Test Recording Density (TRD) 5 4.59 wrap 5 4.60 write equalisation 5 4.61 (1,7) RLL code 5 5 Conventions and notations 6 5.1 Representation of numbers 6 5.2 Dimensions 6 5.3 Names 6 5.4 Alphanumeric string encoding 9 9 Acronyms 9 7 Environment and safety 6 7.1 Cartridge and tape testing environment 7 7.2 Cartridge operating environment 7 7.3 Cartridge storage environment 7 7.4 Tape tension 7 7.5 Safety 7 7.6 Flammability 7 7.7 Transportation 7 Section 2 - Requirements for the Cartridge 8 8 Dimensional and Mechanical Characteristics of the Cartridge 8 8.1 Elements of the car