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INCITS/ISO/IEC 22051 : 2002

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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INFORMATION TECHNOLOGY - DATA INTERCHANGE ON 12,7 MM, 448-TRACK MAGNETIC TAPE CARTRIDGES - SDLT1 FORMAT

Available format(s)

Hardcopy , PDF

Superseded date

20-04-2024

Language(s)

English

Published date

01-01-2002

€99.06
Excluding VAT

Section 1 - General
1 Scope
2 Conformance
    2.1 Magnetic tape cartridges
    2.2 Generating systems
    2.3 Receiving systems
3 Normative references
4 Terms and definitions
    4.1 back surface
    4.2 Beginning-Of-Tape marker (BOT)
    4.3 block
    4.4 byte
    4.5 cartridge
    4.6 Cyclic Redundancy Check (CRC) character
    4.7 Error-Detecting Code (EDC)
    4.8 End-Of-Tape marker (EOT)
    4.9 Entity
    4.10 Error-Correcting Code (ECC)
    4.11 Envelope
    4.12 Envelope size
    4.13 flux transition position
    4.14 flux transition spacing
    4.15 logical track
    4.16 magnetic tape
    4.17 Master Standard Reference Tape
    4.18 object
    4.19 page
    4.20 recording density
    4.21 physical track
    4.22 Record
    4.23 Reference Edge
    4.24 Reference Field
    4.25 Secondary Standard Reference Tape
    4.26 Standard Reference Amplitude (SRA)
    4.27 Standard Reference Current
    4.28 Test Recording Current
    4.29 Typical Field
5 Conventions and notations
    5.1 Representation of numbers
    5.2 Dimensions
    5.3 Names
    5.4 Acronyms
6 Environment and safety
    6.1 Cartridge and tape testing environment
    6.2 Cartridge operating environment
    6.3 Cartridge storage environment
    6.4 Safety
    6.5 Flammability
    6.6 Transportation
Section 2 - Requirements for the unrecorded tape
7 Mechanical and electrical requirements
    7.1 Material
    7.2 Tape length
    7.3 Tape width
    7.4 Tape thickness
    7.5 Discontinuity
    7.6 Longitudinal curvature
    7.7 Out-of-Plane distortions
    7.8 Cupping
    7.9 Roughness of the coating surfaces
    7.10 Coating adhesion
    7.11 Layer-to-layer adhesion
    7.12 Modulus of elasticity
    7.13 Flexural rigidity
    7.14 Tensile yield force
    7.15 Electrical resistance
    7.16 Inhibitor tape
    7.17 Light transmittance of the tape and the leader
    7.18 Abrasivity
    7.19 Coefficient of dynamic friction
    7.20 Servo
8 Magnetic recording characteristics
    8.1 Typical Field
    8.2 Signal amplitude
    8.3 Resolution
    8.4 Overwrite
9 Tape quality
    9.1 Missing pulses
    9.2 Missing pulse zone
    9.3 Tape durability
Section 3 - Mechanical specifications of the tape cartridge
10 General
    10.1 Bottom side and right side
    10.2 Back side and left side
    10.3 Tape reel
    10.4 Tape leader
    10.5 Front side
    10.6 Operation of the cartridge
    10.7 Tape winding
    10.8 Moment of inertia
    10.9 Material
Section 4 - Requirements for an interchanged tape
11 Tape format
    11.1 Reference Edge
    11.2 Direction of recording
    11.3 Tape layout
12 Data format
    12.1 Record
    12.2 Data Bytes
    12.3 Data Field
    12.4 Data Blocks
13 Method of recording
    13.1 Physical recording density
    13.2 Channel bit cell length
    13.3 Read signal amplitude
    13.4 Channel skew
14 Block Recording Format
    14.1 Scrambler
    14.2 Modulation
    14.3 Precoder
    14.4 Recording Data Block
15 Types and Use of Blocks
    15.1 Types of Blocks
    15.2 Use of blocks
16 Format of Entities
17 Format of Envelopes
18 Error handling
Annexes
A - Measurement of light transmittance
B - Procedure for the measurement of abrasivity
C - Generation of the Data Block CRCs
D - Generation of page CRCs
E - ECC generation
F - Allocation of Physical Tracks to Logical Tracks
G - Recommendations for transportation
H - Inhibitor tape
J - Recommendations on tape durability
K - Handling guidelines

Describes the physical and magnetic characteristics of a 12,7 mm wide, 448-track magnetic tape cartridge, to enable physical interchangeability of such cartridges between drives. It also specifies the quality of the recorded signals, a format - called Super Digital Linear Tape 1 (SDLT 1) - and a recording method, thereby allowing data interchange between drives.

DocumentType
Standard
Pages
68
PublisherName
Information Technology Industry Council
Status
Superseded
SupersededBy

Standards Relationship
ISO/IEC 22051:2002 Identical

ISO/IEC 11576:1994 Information technology Procedure for the registration of algorithms for the lossless compression of data
ISO 1302:2002 Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation
ISO 1001:1986 Information processing — File structure and labelling of magnetic tapes for information interchange

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