AS 1009-1983

1 - AS 1009-1983 INFORMATION PROCESSING 9-TRACK, 12.7 MM WIDE MAGNETIC TAPE FOR INFORMATION INTERCHANGE RECORDED AT 32 RP MM
6 - FOREWORD
4 - PREFACE
5 - CONTENTS
7 - 1 SCOPE AND FIELD OF APPLI CATION
7 - 2 REFERENCES
7 - 3 DEFINITI ONS
7 - 3.1 magnetic tape:
7 - 3.2 reference tape:
7 - 3.3 secondary reference tape:
7 - 3.4 signal amplitude reference tape:
7 - 3.5 reference field:
7 - 3.6 reference edge:
7 - 3.7 in contact:
7 - 3.8 track:
7 - 3.9 packing density:
7 - 3.10 inter-block gap:
8 - 4 REFLECTIVE MARKERS
8 - 5 DIRECTION OF TAPE WIND
8 - 6 WIND TENSION
8 - 7 REFERENCE EDGE
8 - 8 TRACK IDENTIFICATION
8 - 9 TRACK CONFIGURATION
8 - 10 DENSITY OF RECORDING
8 - 11 SIGNAL AMPLITUDE
8 - 11.1 Standard reference amplitude
8 - 11.2 Average signal amplitude
9 - 11.3 Maximum signal amplitude
9 - 11.4 Minimum signal amplitude
9 - 12 SPACING OF ROWS
9 - 13 SKEW
9 - 13.1 Static skew
9 - 13.2 Write quality check
9 - 14 BLOCK LENGTH
9 - 15 CYCLIC REDUNDANCY CHECK ROW
10 - 16 LONGITUDINAL REDUNDANCY CHECK ROW
10 - 17 ERASE
10 - 17.1 Erase direction
10 - 17.2 Erase width
10 - 17.3 Ease of easure
10 - 18 GAPS
10 - 18.1 Inter-block gap
10 - 18.2 Initial gap
10 - 18.3 Cyclic redundancy check row gap
10 - 18.4 Longitudinal redundancy check row gap
10 - 19 METHOD OF RECORDING
10 - 20 QUALITY OF RECORDING FOR DATA INTERCHANGE
10 - 21 DATA CONTENT
10 - 22 TAPE MARK
10 - 23 USE OF DUAL DENSITY SYSTEMS NRZI/PE
14 - ANNEX A - CRC REGISTER
14 - A.1 USE OF CRC
14 - A.2 APPLICATION
14 - ANNEX B - DETERMINATION OF THE ERASE MAGNETIC FIELD DIRECTION
14 - B.1 PRINCIPLE
14 - B.2 METHOD OF TEST

Specifies a 9-track, 32 rows per millimetre, 12.7 mm wide magnetic tape for interchangeability of tape between information processing systems which utilize the 7-bit coded character set specified in AS 1776, or its 7-bit and 8-bit extensions specified in AS 1953. Technically identical with ISO 1863.

This International Standard provides a format and recording standard for 9-track, 12,7 mm (0.5 in) wide magnetic tape and reels to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing the 7-bit coded character set specified in ISO 646 or its 7-bit or 8-bit extensions specified in ISO 2022.NOTES1 Certain other aspects of coding requirements, such as significance of binary digits, sequence of characters, filling of unused positions and magnetic labelling for use on magnetic tape, are the subject of ISO 962 and ISO 1001.2 Details of unrecorded tape and reels are specified in the complementary publication, ISO 1864.