ANSI-INCITS-85-1981-R2003.pdf

ANSI INCITS 85-1981 (R2003) (formerly ANSI X3.85-1981 (R1998) for l/2-inch Magnetic Tape Interchange Using a Self-Loading Cartridge Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- ANSI X3.85-1981 American National Standard for $-Inch Magnetic Tape Interchange Using a Self-Loading Cartridge Secretariat Computer and Business Equipment Manufacturers Association Approved June 29,198l American National Standards Institute, Inc Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- American National Standard Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published by American National Standards Institute 11 West 42nd Street, New York, New York 10036 Copyright 1981 by Information Technology Industry Council (ITI) All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- Foreword (This Foreword is not a part of American National Standard for l/2-Inch Magnetic Tape Interchange Using a Self-Loading Cartridge, ANSI X3 85-1981.) This standard presents the requirements and test methods necessary to ensure physical inter- change of a self-loading cartridge to be used with l/2-inch-wide magnetic tape as described in American National Standard for Unrecorded Magnetic Tape for Information Interchange (9- Track 200 and 800 CPI, NRZI, and 1600 CPI, PE), ANSI X3.40-1 976, and modified herein, when contained in a self-loading cartridge. Subcommittee X3Bl on Magnetic Tape, which developed this standard, consists of a number of experienced and qualified specialists on recording of digital information on magnetic tape. In the development of this standard, careful consideration was given to current practices, ex- isting equipment and supplies, and the broadest possible acceptance, and to providing a basis for future improvement in the use of the medium. Suggestions for improvement of this standard will be welcome. They should be sent to the American National Standards Institute, Inc, 1430 Broadway, New York, N.Y. 10018. This standard was processed and approved for submittal to ANSI by American National Stan- dards Committee on Information Processing, X3. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, the X3 Committee had the following members: John F. Auwaerter, Chairman J. P. Ancona and J. A. N. Lee, Co-Vice-Chairmen Catherine A. Kachurik, Administrative Secretary Organization Represented AM International . American Nuclear Society American Society for Information Science Association of American Railroads. Association of Computer Users . Association for Computing Machinery . Association of Data Processing Service Organizations Association for Systems Management . Burroughs Corporation. . Computer and Communications Industry Association Control Data Corporation Data General Corporation Data Processing Management Association . Digital Equipment Computer Users Society Digital Equipment Corporation . Edison Electric Institute . General Services Administration GUIDE International. Harris Corporation Hewlett Packard. . Honeywell Information Systems . : : : : IEEE Communications Society. : : : 1 Name of Representative Joanne Gerg Ace McInturff (Alt) Geraldine C. Main D. R. Vondy (AR) Charles Goldstein R. A. Petrash Hillel Segal Thomas Kurihara (AR) J. A. N. Lee Pat Skelly (AR) Bruce R. Wilson Wallace R. McPherson, Jr Richard Irwin (Alt) Jerrold S. Foley Michael J. Bedford (AR) Norman J. Ream A. G. W. Biddle (Alt) Charies E. Cooper Keith Lucke (Alt) Anthony M. GoschaIk Jit Saxena (AR) Ardyn E. Dubnow Steve Jost (AR) John R. Barr Patricia Caroom (AR) Patricia W. White Howard Kaikow (AR) S. P. Shrivastava William C. Rinehuls Donald J. Page (Alt) Frank Kirshenbaum Leland Milligan (AR) Richard Joyce Ed Younker (Alt) Donald C. Loughry Thomas J. McNamara Thomas A. Varetoni Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- Organization Represented IEEE Computer Society International Business Machines Corporation . Lawrence Berkeley Laboratory . Life Office Management Association National Communications System . National Micrographics Association. NCR Corporation . OCLC.Inc . OCR Users Association. . Perkin-Elmer Corporation Prime Computer. . Printing Industries of America. . Recognition Equipment, Inc. SHARE.Inc Society of Certified Data Processors Sperry Univac. Telephone Group. 3MCompany U.S. Department of Commerce, National Bureau of Standards . U.S. Department of Defense. U.S. Department of Health and Human Services . VIM . Wang Laboratories, Inc. . Xerox Corporation Name of Representative Herbert Hecht William F . McClelland Caryl A. Thorn (Ah) James A. Baker D. F. Stevens (Ah) Richard E. Ricketts James F. Foley, Jr (Alt) Marshall L. Cain George W. White Robert Glotfelty William E. Neale (Alt) Thomas W. Kern A. Raymond Daniels (Alt) David Colombo David Penniman (Ah) Herbert F. Schantz David Ellis Abraham Sevitsky (Alt) Winfried Burke Charles Tinkey (Alt) Norman Scharpf Michael Nolan (Alt) William E. Viering Thomas B. Steel, Jr Daniel Schuster (Alt) Thomas M. Kurihara Ardyn E. Dubnow (Alt) Marvin W. Bass Charles D. Card (Alt) V. N. Vaughan, Jr S. M. Garland (Alt) R. M. Shaw (Alt) R. C. Smith Robert E. Rountree James H. Burrows (Alt) William LaPlant Beth Weinberger Walter Frederic (Ah) Waldo M. Wedel Carl W. Schwartz Charles McComas (Alt) John L. Wheeler Arthur R. Machell (Alt) Subcommittee X3B1, which developed this standard, had the following members: Joseph S. Zajaczkowski, Chairman Michael Lohrenz, Secretary Michael Hogan, International Representative Henry Adalr Arthur Anderson R. Bartholomew Wilham A. Bemett Joseph Bullock Sam D. Cheatharn A. Ching Michael Deese Howard Dirkson Joseph Dudkowski G. 0. Dunklee Donald S. Elderson Art Evans J. Fiori John J. Fleming Sidney B . Geller John Gough Haken Hemdal C. Edmond Holler Kyriacos Joannou Melvin R. Kaiser George Klechefski T. C. Lambert Noel A. Leifer Robert McKenna Michael A. Marchese W. P. Mealey Jeff Menkes D. G. Osborn A. Patti110 M. Richard Pembroke William B. Poland, Jr Joseph Pomian D. 0. Rasmussen Clyde Roberts Arnold J. Roccati Principle H. Sallet A. Saratora Herbert F. Schantz Jim Sexton A. Sheehan Dave Sheppard Richard Silva James Smith Gene Sovereign Richard T. Steinbrenner H. J. Tait V. L. Thompson Robert S. Wooldridge Walter Wuensch Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- Contents SECT1oN PAGE 1. Scope and Purpose . 6 2. Materials 6 3. Operation, Storage, and Test Environment. . 6 4. Dimensions 6 5. AirFlow 6 5.1 Definition 6 5.2 Requirements. . 7 5.3 Machine Test Procedure . 7 5.4 Cartridge Test Procedure 7 6. Latch Operation Torque. . 7 7. Leader Configurations. . 7 Figures Fig. 1 Self-Loading Cartridge/Transport Interface . 8 Fig. 2 Machine Orifice Air Flow 10 Fig. 3 Test Setup . 11 Fig. 4 Examples of Tape Leader Configurations for Use with Self-Loading Cartridge . 12 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- American National Standard for 1/24nch Magnetic Tape Interchange Using a Self-Loading Cartridge 1. Scope and Purpose 1 .l This standard provides the information necessary to allow physical interchange of a self-loading cartridge to be used with l/2-inch-wide magnetic tape, as de- scribed in American National Standard for Unrecorded Magnetic Tape for Information Interchange (9-Track 200 and 800 CPI, NRZI, and 1600 CPI, PE), ANSI X3.40-1 976, and modified herein, when contained in a self-loading cartridge. 1.2 This standard defines the requirements and sup- porting test methods necessary to ensure interchange at acceptable performance levels. It is distinct from a specification in that it delineates a minimum of restric- tions consistent with compatibility in interchange transactions. 1.3 The performance levels contained in this standard represent the minimum acceptable levels of perfor- mance for interchange purposes. They therefore repre- sent the performance levels that the interchanged items should meet or surpass during their useful life and thus define end-of-life criteria for interchange purposes. The performance levels set forth in this standard are not in- tended to be employed as substitutes for purchase specifications. 1.4 Wherever feasible, quantitative performance levels that shall be met or exceeded in order to comply with this standard are given. In all cases, including those in which quantitative limits for requirements falling within the scope of this standard are not stated but are left to agreement between interchange parties, standard test methods and measurement procedures shall be used to determine such limits. 1.5 U.S. customary units are the original dimensions in this standard. Conversions of toleranced dimensions from U.S. customary units (similar to British imperial units) to SI units have been incorporated in this stan- dard according to Method A as described in American National Standard for Metric Practice, ANSI 2210.1. 1976, and IS0 370-1975, Toleranced Dimensions - Conversion from Inches into Millimeters and Vice Versa. Method A should be used to achieve economy unless a requirement for absolute assurance of fit justi- fies use of Method B. In the national standards of IS0 member bodies, additional rounding may be done to produce “preferred” values. These values should lie within or close to the original tolerance. 1.6 Except as indicated in 1.4, interchange parties complying with the applicable standards should be able to achieve compatibility without need for additional exchange of technical information. 2. Materials The cartridge shall not use flammable materials. Flam- mable materials are those which will ignite with a match flame and, when so ignited, will continue to burn in a still carbon dioxide atmosphere. 3. Operation, Storage, and Test Environment The operation, storage, and test environment for the tape and cartridge shall comply with the operation, storage, and test environment of the tape as specified in ANSI X3.40-t 976. 4. Dimensions The dimensions shall be as given in Fig. 1. In the open position, the cartridge shall be expanded so that the reel is free to rotate inside the collar with- out touching it. 5. Air Flow 5.1 Definition. Air flow refers to that flow of air which, when applied to the air intake area, will be capable of detaching the free end of the tape from the tape pack 6 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=USN Ship Repair Facility Yokosuka/9961031100 Not for Resale, 05/09/2007 00:42:14 MDTNo reproduction or networking permitted without license from IHS -,-,- and, in combination with the rotating action of the reel, leading the tape end through the tape exit. Air flow is determined from air pressure and pneumatic impedances. 5.2 Requirements 5.2.1 Pneumatic Impedance. To determine the pneumatic characteristics described in 5.2.2 and 5.2.3, four orifices shall be used as defined in Fig. 2 and 3. The pneumatic impedance, 2, of an orifice is defined as: Z = constant/diameter 5.2.2 Machine Requirements. The machine shall be capable of providing air pressures between 18.0 and 32.0 inches of water (4.48 and 7.97 kPa) when restricted with pneumatic impedances equal to or less than that of orifice Z3 and equal to or greater than that of Zz (see Fig. 3). 5.2.3 Cartridge Re