ISO IEC 18809-2000 PDF

Full title and description

Information technology — 8 mm wide magnetic tape cartridge for information interchange — Helical scan recording AIT-1 with MIC format. This International Standard specifies the physical and magnetic characteristics, recorded-signal quality, recording method and the recorded format (Advanced Intelligent Tape No. 1 with Memory In Cartridge — AIT-1 with MIC) for 8 mm cartridges that include a memory chip to support physical interchange between drives; the System Log is recorded in the MIC and two cartridge types are specified depending on tape thickness.

Abstract

This standard defines the format and interchange requirements for 8 mm helical-scan magnetic tape cartridges containing a memory-in-cartridge (MIC). It covers cartridge physical and magnetic characteristics, the recording method and signal quality requirements, and the arrangement of metadata recorded in the cartridge memory to allow reliable exchange of cartridges between compatible drives.

General information

• Status: Published / confirmed international standard.
• Publication date: 21 December 2000 (Edition 1).
• Publisher: ISO/IEC (joint publication under ISO/IEC JTC 1).
• ICS / categories: 35.220.23 (Cassettes and cartridges for magnetic tapes).
• Edition / version: Edition 1.0 (2000).
• Number of pages: 105.

Scope

The standard applies to 8 mm wide magnetic tape cartridges intended for information interchange that use helical-scan recording and include an on-cartridge memory (MIC). It specifies two cartridge types (by tape thickness), the physical and magnetic properties of the cartridge and tape, the required recorded-signal quality and recording methods, the structure and content recorded in the MIC (including the System Log), and the minimum interchange agreements (codes, structure and labelling) needed between systems to enable reliable data exchange.

Key topics and requirements

• Physical dimensions and mechanical requirements for the 8 mm cartridge and shell.
• Magnetic properties and tape characteristics necessary for compatible recording/playback.
• Specification of the AIT-1 recorded format and signal quality metrics for helical-scan recording.
• Definition and use of the Memory In Cartridge (MIC), including the System Log contents and basic MIC structure.
• Two cartridge variants defined by tape thickness and associated handling/drive considerations.
• Interchange prerequisites: agreed interchange codes, information structure and labelling to ensure cross-drive compatibility.

Typical use and users

Primary users are media manufacturers, magnetic tape drive designers and manufacturers, archival and backup solution providers, IT procurement and data-center operations that manage removable tape media for interchange. The standard is also used by test laboratories and certification bodies that validate cartridge/drive interoperability. Engineers implementing cartridge firmware or drive controllers consult the standard for mechanical, magnetic and MIC-related requirements.

Related standards

This work sits within the ISO/IEC JTC 1/SC 23 family covering digitally recorded media and magnetic tape cartridge formats. Related documents include other cartridge-format standards (for example AIT-2 and other helical/linear tape formats) and format-specific interchange standards produced under the same committee (see ISO/IEC records for neighbouring tape-format standards).

Keywords

AIT-1, MIC, Memory In Cartridge, 8 mm magnetic tape, helical scan, tape cartridge, information interchange, system log, media interchange, ISO/IEC JTC 1/SC 23.

FAQ

Q: What is this standard?

A: ISO/IEC 18809:2000 is an international standard that defines the physical, magnetic and logical characteristics of 8 mm AIT-1 magnetic tape cartridges that include a memory-in-cartridge (MIC) to support interchange between drives.

Q: What does it cover?

A: It covers cartridge physical dimensions and construction, tape and magnetic properties, recorded-signal quality and recording methods for helical-scan AIT-1 format, the MIC (including the System Log), two cartridge types by tape thickness, and the minimum interchange coding, structure and labelling needed for cross-drive compatibility.

Q: Who typically uses it?

A: Manufacturers of tape media and drives, archival and backup system designers, data-center operators using removable tape cartridges, test labs and standards committees working on media interchange and compatibility.

Q: Is it current or superseded?

A: The ISO record shows ISO/IEC 18809:2000 as a published (confirmed) International Standard. Users should check the official ISO/IEC catalogue or national standards body for any amendments, corrigenda or later revisions before relying on it for new designs.

Q: Is it part of a series?

A: Yes — it is part of a set of ISO/IEC standards covering magnetic tape cartridges and digitally recorded media maintained by ISO/IEC JTC 1/SC 23; related standards define other cartridge formats and subsequent generations (for example AIT-2 and other tape formats).

Q: What are the key keywords?

A: AIT-1, MIC, 8 mm tape, helical scan, tape cartridge, information interchange, system log, magnetic tape format.