AS 3630.2-1988

1 - AS 3630.2-1988 INFORMATION PROCESSING-DATA INTERCHANGE ON 130 mm (5.25 in) FLEXIBLE DISK CARTRIDGES USING MODIFIED...
4 - PREFACE
5 - Contents
7 - 0 Introduction
7 - 1 Scope and field of application
7 - 2 Conformance
7 - 3 References
7 - 4 General requirements
7 - 4.1 Mode of recording
7 - 4.2 Track location tol erance of the recorded flexi ble disk cartridge
8 - 4.3 Recording offset angle
8 - 4.4 Density of recording
8 - 4.5 Flux transition spacing
8 - 4.6 Average Signal Amplitude
8 - 4.7 Byte
8 - 4.8 Sector
8 - 4.9 Cylinder
8 - 4.10 Cylinder Number
8 - 4.11 Data capacity of a track
8 - 4.12 Hexadecimal notation
9 - 4.13 Error Detection Characters (EDC)
9 - 5 Track layout
9 - 5.1 Index Gap
9 - 5.2 Sector Identifier
9 - 5.2.1 Identifier Mark
9 - 5.2.2 Address Identifier
10 - 5.3 Identifier Gap
10 - 5.4 Data Block
10 - 5.4.1 Data Mark
10 - 5.4.2 Data Field
10 - 5.4.3 EDC
10 - 5.5 Data Block Gap
10 - 5.6 Track Gap
10 - 6 Coded representation of data
10 - 6.1 Standards
10 - 6.2 Coding methods
11 - Annex A - EDC implementation
12 - Annex B - Procedure and equipment for measuring flux transition spacing
12 - B.1 General
12 - B.2 Format
12 - B.3 Test equipment
13 - B.4 Procedure for measurement
14 - Annex C - Data separators for decoding MFM recording

Part 2 specifies the characteristics of 130 mm (5.25 in) flexible disk cartridges recorded at 13 262 ftprad, on 80 tracks on each side, so as to provide physical interchangeability between data processing systems. This Standard is identical with ISO 8630-3:1987.

This part of ISO 8630 specifies the quality of recorded signals, the track layout, and a track format to be used on 130 mm (5.25 in), 13 262 ftprad flexible disk cartridges intended for data interchange between data processing systems.NOTE - Numeric values in the SI and/or Imperial measurement system in this part of ISO 8630 may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should be neither intermixed nor re-converted. The original design was made using Imperial units and further developments were made using SI units.