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ANSI INCITS 334 : 2000 : R2015

Current
Current

The latest, up-to-date edition.

MAGNETIC TAPE CARTRIDGE FOR INFORMATION INTERCHANGE, 0.50 IN (12.65 MM) SERIAL SERPENTINE 128-TRACK, 62500 BPI (2460 BPMM) DLT3XT FORMAT
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2015

1 Introduction
   1.1 Scope
   1.2 Purpose
   1.3 Conformance
   1.4 Dimensions
2 Normative references
3 Definitions
   3.1 Average Signal Amplitude
   3.2 azimuth
   3.3 back surface
   3.4 Beginning-Of-Tape markers (BOT 1 and BOT 2)
   3.5 byte
   3.6 cartridge
   3.7 Cyclic Redundancy Check (CRC) character
   3.8 Early Warning (EW)
   3.9 Error-Detecting Code (EDC)
   3.10 End-Of-Tape marker (EOT)
   3.11 Entity
   3.12 Error-Correcting Code (ECC)
   3.13 flux transition position
   3.14 flux transition spacing
   3.15 Logical Block
   3.16 logical track
   3.17 magnetic tape
   3.18 Master Standard Reference Tape
   3.19 object
   3.20 page
   3.21 physical block
   3.22 physical recording density
   3.23 physical track
   3.24 Record
   3.25 Reference Edge
   3.26 Reference Field
   3.27 Secondary Standard Reference Tape
   3.28 Standard Reference Amplitude (SRA)
   3.29 Standard Reference Current
   3.30 Test Recording Current
   3.31 Typical Field
4 Conventions and notations
   4.1 Representation of numbers
   4.2 Dimensions
   4.3 Names
5 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 Transportation
7 Mechanical and electrical requirements
   7.1 Material
   7.2 Tape length
   7.3 Width
   7.4 Total 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 Abrasivity
   7.18 Light transmittance of the tape and the leader
   7.19 Coefficient of dynamic friction
8 Magnetic recording characteristics of the unrecorded tape
   8.1 Typical Field
   8.2 Signal amplitude
   8.3 Resolution
   8.4 Overwrite
   8.5 Peak shift
9 Tape quality
   9.1 Missing pulses
   9.2 Missing pulse zone
   9.3 Tape durability
10 Mechanical specifications of the tape cartridge
   10.1 Bottom side and right side
   10.2 Back side and left side
   10.3 Tape reel
   10.4 Tape leader and markers
   10.5 Front side
   10.6 Operation of the cartridge
   10.7 Tape winding
   10.8 Moment of inertia
   10.9 Material
11 Method of recording
   11.1 Physical recording density
   11.2 Channel bit cell length
   11.3 Flux transition spacing
   11.4 Read signal amplitude
   11.5 Azimuth
   11.6 Channel skew
12 Tape format
   12.1 Reference Edge
   12.2 Direction of recording
   12.3 Tape layout
   12.4 Calibration and Directory Area
   12.5 Data Area
13 Data format
   13.1 Data Bytes
   13.2 Logical Blocks
   13.3 Data Blocks
   13.4 Types of Logical Blocks
   13.5 Entities
   13.6 Logical Block format
14 Use of Logical Blocks
   14.1 Data Blocks
   14.2 Filler Blocks
   14.3 End of Track Blocks (EOTR)
   14.4 End of Data Blocks (EOD)
   14.5 ECC Blocks
15 Format of Entities
16 Error handling
Tables
Figures
Annexes
A - Measurement of light transmittance
B - Generation of the Data Block CRCs
C - ECC generation
D - Generation of page CRCs
E - Format of MAP entries
F - Format of Control Field 1
G - Format of Control Field 2
H - Recommendations for transportation
J - Inhibitor Tape
K - Recommendations on tape durability
L - Handling guidelines

Describes the physical and magnetic characteristics of a 0.5 in (12.65 mm) wide 128-track magnetic tape cartridge, to enable physical interchange of such cartridges. It also specifies the quality of the recorded signals, a format - called Digital Linear Tape 3 Extended (DLT 3-XT) - and a recording method, thereby allowing data interchange between drives.

Committee
TC B5
DocumentType
Standard
Pages
70
ProductNote
Reconfirmed 2015
PublisherName
Information Technology Industry Council
Status
Current

ISO/IEC 11576:1994 Information technology Procedure for the registration of algorithms for the lossless compression of data
ANSI INCITS 27 : 1987 INFORMATION SYSTEMS - FILE STRUCTURE AND LABELING OF MAGNETIC TAPES FOR INFORMATION INTERCHANGE
IEEE 268-1992 American National Standard for Metric Practice
ISO 1302:2002 Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation
ISO 370:1975 Toleranced dimensions Conversion from inches into millimetres and vice versa

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