1 - AS 2847.2-1988 INFORMATION PROCESSING - DATA INTERCHANGE ON 130 MM (5.25 IN) FLEXIBLE DISK CARTRIDGES USING TWO-FREQUENCY REC
4 - PREFACE
5 - Contents
6 - 0 Introduction
6 - 1 Scope and field of application
6 - 2 Conformance
6 - 3 References
6 - 4 General requirements
6 - 4.1 Mode of recording
6 - 4.2 Track location tolerance of the recorded flexible disk cartridge
6 - 4.3 Recording offset angle
6 - 4.4 Density of recording
7 - 4.5 Flux transition spacing
7 - 4.6 Average signal amplitude
7 - 4.7 Byte
7 - 4.8 Sector
7 - 4.9 Data capacity of a track
7 - 4.10 Hexadecimal notation
7 - 4.11 Error detection characters (EDC)
8 - 5 Track layout after the first formatting for track 00
8 - 5.1 Index gap
8 - 5.2 Sector identifier
8 - 5.3 Identifier gap
8 - 5.4 Data block
9 - 5.5 Data block gap
9 - 5.6 Track gap
9 - 6 Track layout after the first formatting for tracks 01- 34
9 - 6.1 Index gap
9 - 6.2 Sector identifier
9 - 6.3 Identifier gap
10 - 6.4 Data block
10 - 6.5 Data block gap
10 - 6.6 Track gap
10 - 7 Track layout of a recorded flexible disk for data interchange
10 - 7.1 Representation of characters
10 - 7.2 Good and bad tracks
10 - 7.3 Track layout of good tracks
11 - 7.4 Layout of a bad track
11 - 7.4.1 Contents of the fields
12 - 7.4.2 Requirements for tracks
13 - Annex A - Use of additional tracks
14 - Annex B - EDC implementation
15 - Annex C - Procedure and equipment for measuring flux transition spacing
15 - C.1 General
15 - C.2 Format
15 - C.3 Test equipment
16 - C.4 Procedure for measurement