ANSI INCITS 54 : 1986 : R2002

1. Scope and Purpose
2. Referenced Standards
   2.1 American National Standards
   2.2 Other Standards
3. Definitions
4. Recording Area Markers
5. Recording
   5.1 Method
   5.2 Density of Recording
   5.3 Flux Transition Spacing
   5.4 Total Character Skew
   5.5 Signal Amplitude
   5.6 Erase
6. Format
   6.1 Track Format
   6.2 Track Dimensions
   6.3 Reference Edge
   6.4 Track Identification
   6.5 Block Length
   6.6 Preamble
   6.7 Postamble
   6.8 Density Identification Area (ID Burst)
   6.9 Automatic Read Amplification Area
   6.10 Interblock Gap
   6.11 Tape Mark
   6.12 Resync Burst
   6.13 Storage Group
   6.14 Mark 1 Control Subgroup
   6.15 Mark 2 Control Subgroup
   6.16 End Mark
   6.17 Sync Control Subgroup
   6.18 Terminator Control Subgroup (TERM)
   6.19 Second Control Subgroup
   6.20 Residual Character
   6.21 Data Group
   6.22 Residual Data Group
   6.23 CRC Data Group
7. Check Characters
   7.1 Introduction
   7.2 ECC Character
   7.3 Auxiliary CRC Character
   7.4 CRC Character
Appendixes
Appendix A Design Consideration
  A1 Introduction
  A2 Specification Support
  A3 Additional Consideration
Appendix B Measurement of Flux Transition Spacing
  B1 General
  B2 Read Equipment
Figure B1 Output Signal Waveform of Amplifier-Limiter
             Differentiator

Provides specifications for a 1/2-inch (12,7 mm), 9-track magnetic tape to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing a standard code as agreed upon by the interchange parties.