AS 2747.2-1985

1 - AS 2747.2-1985 INFORMATION PROCESSING-DATA INTERCHANGE ON 200 mm FLEXIBLE DISK CARTRIDGES USING TWO-FREQUENCY RECORDING...
4 - PREFACE
5 - 0 Introduction
5 - 1 Scope and field of application
5 - 2 References
5 - 3 General recording requirements
5 - 3.1 Mode of recording
5 - 3.2 Track location tolerance of the recorded flexible disk cartridge
6 - 3.3 Recording offset angle
6 - 3.4 Density of recording
6 - 3.5 Flux transition spacing
6 - 3.6 Average signal amplitude
6 - 4 General format requirements
6 - 4.1 Byte
6 - 4.2 Sector
6 - 4.3 Data capacity of a track
6 - 4.4 Hexadecimal notation
6 - 4.5 Error detection characters (EDC)
6 - 4.6 Representation of characters
7 - 4.7 Track assignment
7 - 5 Track layout after the first formatting
7 - 5.1 Index gap
7 - 5.2 Sector identifier
8 - 5.3 Identifier gap
8 - 5.4 Data block
8 - 5.5 Data block gap
8 - 5.6 Track gap
8 - 6 Interchange flexible disk cartridges - Track layout of good tracks
8 - 6.1 Index gap
8 - 6.2 Sector identifier
9 - 6.3 Identifier gap
9 - 6.4 Data block
9 - 6.5 Data block gap
9 - 6.6 Track gap
9 - 7 Re-writing of a bad track
9 - 7.1 Index gap
9 - 7.2 Sector identifier
10 - 7.3 Identifier gap
10 - 7.4 Data block
10 - 7.5 Data block gap
10 - 7.6 Track gap
10 - 7.7 Requirement for bad tracks

Specifies the quality of recorded signals, track layout and the track format. Identical with ISO 5654-2.

This part of ISO 5654 specifies the quality of recorded signals, track layout and the track format to be used on the abovementioned flexible disk cartridge which is intended for data interchange between data processing systems.NOTE - Numeric values in the SI and/or Imperial measurement system in this International Standard 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 the Imperial measurement system.