1、BRITISH STANDARD BS ISO/IEC 11319:1993 Implementation of ISO/IEC11319:1993 Information technology 8mm wide magnetic tape cartridge for information interchange Helical scan recording UDC 681.327.636BSISO/IEC11319:1993 This British Standard, having been prepared under the directionof the Information S
2、ystems Technology Standards Policy Committee, was publishedunder the authority ofthe Standards Board and comesinto effect on 15November1993 BSI 02-2000 The following BSI references relate to the work on this standard: Committee referenceIST/4 Draft for comment91/62467DC ISBN 0 580 22600 X Committees
3、 responsible for this BritishStandard The preparation of this British Standard was entrusted by the Information Systems Technology Standards Policy Committee (IST/-) to Technical Committee IST/4, upon which the following bodies were represented: British Computer Society ICI Imagedata Institution of
4、Electrical Engineers International Computers Limited Kodak Limited Amendments issued since publication Amd. No. Date CommentsBSISO/IEC11319:1993 BSI 02-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword vii Text of ISO/IEC 11319 1BSISO/IEC11319:1993 ii BSI 0
5、2-2000 National foreword This British Standard reproduces verbatim ISO/IEC11319:1993 and implements it as the UK national standard. This British Standard is published under the direction of the Information Systems Technology Standards Policy Committee whose Technical Committee IST/4 has the responsi
6、bility to: aid enquirers to understand the text; present to the responsible 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 E
7、uropean Standards, as well as overseas standards, are available from Customer Services, Publications, BSI, Linford Wood, Milton Keynes, MK146LE. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct app
8、lication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, the ISO/IEC title page, pagesiitoviii, pages1to53 and a back cover. This standard has been updated (see
9、 copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO/IEC11319:1993(E) ii BSI 02-2000 Contents Page Foreword vii Section 1. General 1 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Definitions 1 4.1 AC erase 1 4.2
10、 Average Signal Amplitude 1 4.3 azimuth 1 4.4 back surface 1 4.5 bit cell 1 4.6 byte 1 4.7 cartridge 1 4.8 Cyclic Redundancy Check (CRC) Character 2 4.9 Error Correcting Code (ECC) 2 4.10 flux transition position 2 4.11 flux transition spacing 2 4.12 magnetic tape 2 4.13 Master Standard Reference Ta
11、pe 2 4.14 Physical Beginning of Tape (PBOT) 2 4.15 Physical End of Tape (PEOT) 2 4.16 physical recording density 2 4.17 Secondary Reference Amplitude 2 4.18 Secondary Reference Field 2 4.19 Secondary Standard Reference Tape 2 4.20 Standard Reference Current (Ir) 2 4.21 Tape Reference Edge 3 4.22 Tes
12、t Recording Current 3 4.23 tone 3 4.24 track 3 4.25 Typical Field 3 5 Environment and safety 3 5.1 Testing environment 3 5.2 Operating environment 3 5.3 Storage environment 3 5.4 Transportation 4 5.5 Safety 4 5.6 Flammability 4 Section 2. Requirements for the case 4 6 Dimensional and mechanical char
13、acteristics of the case 4 6.1 General 4 6.2 Overall dimension (Figure 3) 4 6.3 Holding areas 5 6.4 Cartridge insertion 5 6.5 Window (Figure 1) 5 6.6 Loading grips (Figure 3) 6 6.7 Label areas (Figure 3) 6 6.8 Datum areas and datum holes (Figure 4,Figure 5 andFigure 6) 6 6.9 Support areas 7 6.10 Reco
14、gnition holes (Figure 5,Figure 6 andFigure 7) 7ISO/IEC11319:1993(E) BSI 02-2000 iii Page 6.11 Write-inhibit Hole (Figure 6 andFigure 7) 8 6.12 Pre-positioning surfaces (Figure 3 andFigure 5) 8 6.13 Cartridge lid (Figure 3 andFigure 8) 8 6.14 Cartridge reel lock (Figure 11) 9 6.15 Reel access holes (
15、Figure 5) 10 6.16 Interface between the reels and the drive spindles (Figure 17 andFigure 18) 10 6.17 Light path (Figure 5,Figure 7,Figure 15 andFigure 16) 11 6.18 Position of the tape in the case (Figure 16) 11 6.19 Tape path zone (Figure 16 andFigure 17) 11 6.20 Tape access cavity (Figure 5) 12 6.
16、21 Tape access cavity clearance requirements (Figure 19) 12 Section 3. Requirements for the unrecorded tape 27 7 Mechanical, physical and dimensional characteristics of the tape 27 7.1 Materials 27 7.2 Tape length 27 7.2.1 Length of magnetic tape 27 7.2.2 Length of leader and trailer tapes 27 7.2.3
17、Splicing tape 27 7.3 Width 27 7.4 Discontinuities 28 7.5 Thickness 28 7.5.1 Thickness of magnetic tape 28 7.5.2 Thickness of leader and trailer tape 28 7.6 Longitudinal curvature 28 7.7 Cupping 28 7.8 Coating adhesion (Figure 20) 28 7.9 Layer-to-layer adhesion 29 7.10 Tensile strength 29 7.10.1 Brea
18、king strength 29 7.10.2 Yield strength 29 7.11 Residual elongation 29 7.12 Electrical resistance of the surface 29 7.13 Tape winding 30 7.14 Light transmittance of tape 30 8 Magnetic recording performance 30 8.1 Test conditions 30 8.2 Typical Field 30 8.3 Signal Amplitude 30 8.4 Resolution 31 8.5 Na
19、rrow-band signal-to-noise ratio 31 8.5.1 Requirement 31 8.5.2 Procedure 31 8.6 Ease of erasure 31 8.7 Tape quality 31 8.7.1 Missing pulses 31 8.7.2 Missing pulse zone 31 8.8 Inhibitor tape 31ISO/IEC11319:1993(E) iv BSI 02-2000 Page Section 4. Requirements for an interchanged tape 31 9 Format 31 9.1
20、General 31 9.2 Information matrix 32 9.2.1 Loading of the information matrix 32 10 Method of recording 35 10.1 Physical recording density 35 10.1.1 Long-term average bit cell length 35 10.1.2 Short-term average bit cell length 35 10.1.3 Rate of change 35 10.2 Bit shift 35 10.3 Read signal amplitudes
21、 36 10.3.1 Amplitude of data signals 36 10.3.2 Amplitude of servo signals 36 10.3.3 Signal amplitude on an analogue tape mark track 36 10.4 Erasure 36 11 Track geometry 36 11.1 Track positions 36 11.2.1 Average track pitch 37 11.2.2 Adjacent track pitch 37 11.3 Track width 37 11.4 Track angle 37 11.
22、5 Linearity of track edges 37 11.6 Azimuth 37 12 Format of an information track 37 12.1 Channel bit 37 12.2 Information Segment 37 12.2.1 Bit Synchronization field 38 12.2.2 Information Segment Number 38 12.2.3 Information Segment field 38 12.3 Information Block 39 12.4 Information Zone 39 12.5 Serv
23、o Zone 40 12.6 Information Tracks 40 12.6.1 Format ID Track 40 12.6.2 Data Track 40 12.6.3 Tape Mark Track 40 12.6.4 Splice Track 41 13 Tape Mark 41 13.1 Description 41 13.2 Long Tape Mark 42 13.3 Short Tape Mark 42 13.3.1 Normal Short Tape Mark 42 13.3.2 Alternative Short Tape Mark 42 14 ID Informa
24、tion 42 14.1 Column00, Row00 42 14.1.1 Block Type Data Block 42 14.1.2 Block Type Data Block 42 14.1.3 Block type Format ID 42ISO/IEC11319:1993(E) BSI 02-2000 v Page 14.1.4 Block type Pad Block 42 14.2 Column00, Row01 43 14.3 Column00, Row02 43 14.4 Column00, Row03 43 14.5 Column00, Row04 43 14.6 Co
25、lumn00, Rows05,06 43 14.6.1 Row05 43 14.6.2 Row06 43 14.7 Column00, Row07 43 14.8 Column00, Rows08,09,10 43 14.8.1 Block type Data Block 43 14.8.2 Block type non-Data Block 44 14.9 Column00, Rows11,12,13 44 15 Rewritten Information Blocks 44 16 Physical tape format 44 16.1 Initial Erased Area 44 16.
26、2 Logical Beginning of Tape Area (LBOT Area) 44 16.3 Usable area of the tape 44 16.4 Post Data erased area 44 Annex A (normative) Measurement of light transmittance of tape and leaders 46 Annex B (normative) Measurement of bit shift 48 Annex C (normative) Representation of8-bit bytes by10-bit patter
27、ns 50 Annex D (informative) Recommendations for transportation 53 Annex E (informative) Inhibitor tape 53 Figure 1 Tape cartridge assembly bottom view (lid open) 12 Figure 2 Tape cartridge assembly bottom view (lid closed) 13 Figure 3 Top side (lid closed) 14 Figure 4 Bottom side, datum and support
28、areas 15 Figure 5 Bottom side (lid removed) 16 Figure 6 Details of datum and recognition holes 17 Figure 7 Cross-sections of light path holes, recognition holes and write-inhibit hole 18 Figure 8 Lid 19 Figure 9 Lid release insertion channel 20 Figure 10 Lid release requirement 21 Figure 11 Reel loc
29、k release 22 Figure 12 Direction of force needed to unlock the reel lock 22 Figure 13 Direction of force needed to unlock the lid lock 23 Figure 14 Direction of force needed to open the lid 23 Figure 15 Light path and light window 23 Figure 16 Internal tape path and light path 24 Figure 17 Cartridge
30、 reel 25 Figure 18 Interface with drive spindle 26 Figure 19 Tape access cavity clearance 27 Figure 20 Setup for measuring coating adhesion 28 Figure 21 Setup for measuring electrical resistance 30 Figure 22 Information matrix 32 Figure 23 Track layout and track location 36ISO/IEC11319:1993(E) vi BS
31、I 02-2000 Page Figure 24 Information Segment layout 37 Figure 25 Segment field partitioning of the Information Matrix 39 Figure 26 Information Block layout 39 Figure 27 Information area layout 39 Figure 28 Servo Zone layout 40 Figure 29 Information Track 41 Figure 30 Tape Mark layout 41 Figure 31 Ta
32、pe layout 44 Figure 32 Beginning of Tape layout 45 Figure A.1 Optical arrangement 47 Figure A.2 Measuring circuitry 47 Figure B.1 Measurement of waveform 49 Table 1 Information Segment Number 38ISO/IEC11319:1993(E) BSI 02-2000 vii Foreword ISO (the International Organization for Standardization) and
33、 IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal wit
34、h particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC hav
35、e established a joint technical committee, ISO/IECJTC1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an InternationalStandard requires approval by at least75% of the national bodies casting a vote. International S
36、tandard ISO/IEC11319 was prepared by the European Computer Manufacturers Association (as StandardECMA-145) and was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISO/IECJTC1, Information technology, Sub-Committee11, Flexible magnetic media for digital data interchange,
37、 in parallel with its approval by national bodies of ISO and IEC. Annex A,Annex B andAnnex C form an integral part of this International Standard. Annex D andAnnex E are for information only.viii blankISO/IEC11319:1993(E) BSI 02-2000 1 Section 1. General 1 Scope This International Standard specifies
38、 the physical and magnetic characteristics of an8mm wide magnetic tape cartridge to enable interchangeability of such cartridges. It also provides a format and recording method, thus allowing, together with ISO1001 for Magnetic Tape Labelling, full data interchange by means of such magnetic tape car
39、tridges. 2 Conformance A magnetic tape cartridge shall be in conformance with this InternationalStandard if it satisfies all mandatory requirements specified herein. The tape requirements shall be satisfied throughout the extent of the tape. 3 Normative references The following standards contain pro
40、visions which, through reference in this text, constitute provisions of this InternationalStandard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this InternationalStandard are encouraged to investigate the po
41、ssibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid InternationalStandards. ISO/R 527:1966, Plastics Determination of tensile properties. ISO 1001:1986, Information processing File structure and labelling of ma
42、gnetic tapes for information interchange. ISO 1302:1978, Technical drawings Method of indicating surface texture on drawings. IEC 950:1990, Safety of Information Technology Equipment, including Electrical Business Equipment. 4 Definitions For the purpose of this InternationalStandard, the following
43、definitions apply. 4.1 AC erase a process of erasure utilizing alternating fields of decaying level 4.2 average signal amplitude the average peak-to-peak value of the signal output of the read head measured over a minimum of1,40mm, exclusive of missing pulses 4.3 azimuth the angular deviation, in de
44、grees of arc, of the recorded flux transitions on a track from the line normal to the track centreline 4.4 back surface the surface of the tape opposite to the magnetic coating used to record data 4.5 bit cell a distance along the track allocated for the recording of a Channel bit 4.6 byte an ordere
45、d set of bits acted upon as a unit 4.7 cartridge a case containing magnetic tape stored on twin reelsISO/IEC11319:1993(E) 2 BSI 02-2000 4.8 cyclic redundancy check (CRC) character a character used for error detection 4.9 error correcting code (ECC) a mathematical procedure yielding bytes used for th
46、e detection and correction of errors 4.10 flux transition position that point which exhibits the maximum free-space flux density normal to the tape surface 4.11 flux transition spacing the distance along a track between successive flux transitions 4.12 magnetic tape a tape that accepts and retains m
47、agnetic signals intended for input, output, and storage of data for information processing 4.13 master standard reference tape a tape selected as the standard for amplitude, Typical Field and Resolution NOTE 1The Master Standard Reference Tape has been established by the SONY Corporation. 4.14 physi
48、cal beginning of tape (PBOT) the transition from the tape leader to the opaque area of the splice by which the translucent leader tape is joined to the magnetic tape 4.15 physical end of tape (PEOT) the transition from the opaque area of the splice to the translucent trailer tape 4.16 physical recor
49、ding density the number of recorded flux transitions per unit length of track, expressed in flux transitions per millimetre (ftpmm) 4.17 secondary reference amplitude the Average Signal Amplitude from the Secondary Standard Reference Tape when it is recorded with the Test Recording Current at2126ftpmm 4.18 secondary reference field the Typical Field of the Secondary Standard Reference Tape 4.19 secondary standard reference tape a tape the performance of which is known and s
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