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1、International Standard INTERNATIONAL ORGANIZATION FOR STANOAROIZATlON*MEMW HAPOHAR OPrAHHJAI sub-clause 5.1 of the previous edition having been technically revised. 0 International Organization for Standardization, 1984 0 Printed in Switzerland ii Copyright International Organization for Standardiza
2、tion Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- Contents Scope and field of application Reference. Environment Description and operation Dimensions
3、 . Cartridge/drive interface Optional features. . Functional characteristics . Tape and reel requirements . Annexes A Instrumentation for measuring the pneumatic impedance. 10 B Examples of tape leader configuration for use with self-loading cartridge 11 iii Copyright International Organization for
4、Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 6098-1984 (El Information processing - Self-loading cartridge
5、s for 12,7 mm (0.5 in) wide magnetic tape 1 Scope and field of application This International Standard specifies mechanical and functional interchangeability requirements for self-loading cartridges, to be used with reels of 12.7 mm (0.5 in) wide magnetic tape specified in IS0 1864. Minimum dimensio
6、nal and functional requirements of the car- tridge are given, in order to ensure interchangeability of car- tridges between tape drives designed for self-loading oper- ation. Some dimensions and features, other than those strictly required for interchangeability, are also given but have to be consid
7、ered as recommended or optional. NOTE - The numeric values in the SI and Imperial measurement systems in this International Standard may have been rounded 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
8、 reconverted. The original design was completed using the Imperial measurement system. 2 Reference IS0 1864, Information processing - Unrecorded 12,7 mm (0.5 in) wide magnetic tape for information interchange - 32 ftpmm BOO ftpi) NRZ7, 126 ftpmm (3 200 ftpi) phase en- coded and 356 ftpmm (9 042 ftpi
9、), NRZI. 3 Environment 3.1 Testing environment Tests and measurements made to check the requirements of this International Standard shall be carried out under following conditions : temperature : 23 ?I 2 OC (73 f 5 OF) relative humidity : 40 to 60 % conditioning time before testing : 24 h 3.2 Operat
10、ing environment temperature : 16 to 32 OC (60 to 90 OFI relative humidity : 20 to 80 % wet bulb temperature : not greater than 25 OC (78 OF) 3.3 Storage environment 3.3.1 Cartridges loaded with unrecorded tape temperature : 5 to 48 OC (40 to 120 OF) relative humidity : 20 to 80 % wet bulb temperatur
11、e : not greater than 26 OC (60 “F) 3.3.2 Cartridges loaded with recorded tape temperature : 5 to 32 OC (40 to 90 OF) relative humidity : 20 to 80 % wet bulb temperature : not greater than 25 OC (78 “F) 3.3.3 Cartridges without tape Temperature and relative humidity of storage environment for cartrid
12、ges without tape should be according to the recommen- dations of the manufacturers of the cartridge. 4 Description and operation 4.1 General The self-loading cartridge is a collar which can be attached to the rim of a reel of magnetic tape and protect the tape against dust and contamination during s
13、torage and handling. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6098-1984 (E) The co
14、llar is provided with an opening mechanism which per- mits it to be opened by mechanical means, and is furthermore provided with a system of air distribution channels which will allow the tape to be driven out of the opening pneumatically for the purpose of automatic loading on a suitably designed t
15、ape transport. 4.1.1 Material The cartridge shall be made from materials that, if ignited from a match flame, do not continue to burn in a still carbon dioxide atmosphere. 4.2 Types There are two types of self-loading cartridges, type A and type B, having no functional differences. However, they dif
16、fer in some dimensional characteristics, in particular in their widths. A tape drive should have provisions for accepting both types, but because of the dimensional differences existing between the two types, there might be tape drives which accept only type A or only type B. 4.3 Use of latch The se
17、lf-loading cartridge shall have a latch device for opening and closing. When opening the latch, the collar shall expand to such extent as to provide manual insertion and extraction of the reel. When the latch is closed, the inside surface of the collar moves radially and shall come into firm contact
18、 with the rims of the flanges of the reel. 4.4 Operation 4.4.1 Mounting The cartridge, in the closed position, with reel and tape, shall be mounted on the tape drive. Proper positioning of the cartridge shall be determined, in the direction of the axis of the reel, by the interface between the reel
19、and the drive s hub, and, in the angular direction, by a tangential restraint key and a corresponding restraint of the drive. 4.4.2 Opening By a circular movement of a pin from the tape drive engaging a slotted hole in the latch, the cartridge shall reach its open pos- ition. In the open position, t
20、he cartridge shall be expanded so that the reel shall be free to rotate inside the collar, without touching it. 4.4.3 Restraint keys In the open position, the cartridge shall be held in place by tangential and axial restraint keys and corresponding restraints of the drive. 4.4.4 Air intake and air e
21、xit On the outside surface of the collar, there shall be an air intake area. In the open position, this area shall come into contact with an air supply nozzle of the tape drive. 4.4.5 Tape exit The collar shall be provided with a tape exit opening. In the closed position of the cartridge, this openi
22、ng shall be shut. In the open position of the cartridge, this opening shall be open. 4.4.6 Tape loading When the cartridge is in the open position, air applied to the air intake area shall be capable of detaching the free end of the tape from the tape pack, and, in combination with the rotating acti
23、on of the reel, of leading the tape end through the tape exit. 4.4.7 Closing After rewinding the tape completely back on to the reel, the cartridge is brought back from the open position to the closed position by a circular movement of the pin engaging the slotted hole in the latch. The circular mov
24、ement is exactly the reverse of the movement necessary for opening. 4.5 Figures For ease of understanding the dimensional requirements, a typical construction is shown in the figures. Figure 1 - Closed position (rear view) - shows the rear side of the cartridge in the closed position with partial vi
25、ew A. Figure 2 - Open position (front view) - shows the front side of the cartridge in the open position. Figure 3 - Closed position (rear view) - is an enlarged view of figure 1 with partial views A to G and sections K-K for types A and B. Figure 4 - Open position (front view) - is an enlarged view
26、 of figure 2 with partial view A. Figure 5 - Hook - is a view of the cartridge hook. Figure 6 - Reference orifice - shows a reference orifice in cross-section. 5 Dimensions The dimensions given for the cartridge in the closed position are referred to two perpendicular axes X and Y. The relative angu
27、lar position of the cartridge with regard to these axes is defined by an angle A, = 24O nominal 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or n
28、etworking permitted without license from IHS -,-,- IS0 6099-1994 (El This being the angle between the vertical axis Y and the sym- metry axis of the tangential restraint key. Unless otherwise stated, all dimensions apply to types A and B. 5.1 Outer radius (see figure 3 and sections K-K) The outer ra
29、dius shall be RI = 137,2 + 0,4 mm (5.406 * 0.015 in) 5.2 Width (see figure 3 and sections K-K) The external width shall be for type A : WI = 28,56 k 0,13 mm (1.125 + 0.005 in) for type B : WI = 22,73 + 0,13 mm (0.895 + 0.005 in) NOTE - In the case when stacking rings are provided, the dimensions in
30、7.2 are to be taken into account. 5.3 Radius of the front flange (see figure 3 and sections K-K) The radius of the front flange shall be (see also 7.2.) for type A : R, = 130,O 21 0,4 mm (5.117 +I 0.015 in) for type B : R, = 130,O f 1,O mm (5.117 + 0.038 in) 5.4 Radius of the rear flange (see figure
31、 3 and sections K-K) The radius of the rear flange shall be for type A : R, = 125,73 + 0,25 mm (4.950 * 0.010 in) for type B : R, = 130,O f 1,0 mm (5.117 + 0.038 in) 5.5 Tangential restraint key (see figure 3 and views F and G) 5.5.1 Height The radial height of this key shall be H, = 6,35 k 0,25 mm
32、(0.250 f 0.010 in) 5.5.2 Width The width of this key at its base shall be W, = 1250 + 0,13 mm (0.492 Tape exit opening Lower restraint kevs Figure 2 - Open position (front view) 7 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical
33、Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6098-1984 (El W s B-A B s -_-_ A Y Symmetry d K-K (Type B) K-K (Type A) Symmetry plane Figure 3 - Closed position (rear view) Copyright International Organization
34、for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6098-1984 (El Y -X Figure 5 - Hook I A Figure 4 - Open position (front view) Fig
35、ure 6 - Reference orifice 9 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6096-1964 (E) A
36、nnex A Instrumentation for measuring the pneumatic impedance (This annex forms part of the standard.) Since it is the relative impedance which is of interest, there is no need for precision instruments reading absolute values. Pneumatic impedance is related to differential pressure and resulting air
37、 flow, and relative air flow in turn can be measured by measuring relative pressure differential across a fixed im- pedance. The test set-up shown below consists of a tube, a throttle, reference orifice Z, and two pressure gauges G, G2. Com- pressed air is applied to one end of the tube. The throttl
38、e is used to adjust the air flow through the tube. The other end of the tube is then applied to each of the reference orifices Z, Z, Z, and to the air intake area of the empty cartridge under test. The tube is divided into two sections by reference orifice Z,. A pressure gauge is connected to each s
39、ection. A.1 Test procedure All readings shall be made with an accuracy of 1 % of the full scale reading. a) The test tube shall be applied to reference orifice Z,. The throttle shall be adjusted until gauge G, reads a pressure A.2 Requirement The cartridge under test complies with 8.2.3 of this Inte
40、r- national Standard if P4 = 59 If: 0,06 kPa P2 PC P3 Throttle COI air The reading P, of gauge G, shall be noted. b) The throttle shall then remain in its position until the end of the test procedure. c) The test tube shall be applied to reference orifice Z,. The reading P2 of gauge G, shall be note
41、d. d) The test tube shall be applied to reference orifice Z,. The reading P3 of gauge G, shall be noted. e) The test tube shall be applied to the air intake area of the cartridge under test. The reading PC of gauge G, shall be noted. f) The test tube shall be applied again to reference orifice Z,. T
42、he reading P, of gauge G, and P, of gauge G2 shall be the same as in step a) above. Gauge G1 5 PL Gauge G2 Length L = 100 mm (3.94 in) Diameter D = 20 mm (0.79 in) Reference orifices Z, Z.3, Z4 Air intake of cartridge Figure 7 - Instrumentation for measuring the pneumatic impedance 10 Copyright Inte
43、rnational Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6098-1984 (El Annex B Examples of tape leader configurati
44、on for use with self-loading cartridge (This annex does not form part of the standard.) Dimensions in millimetres (inches in parentheses) No ragged edges See note 1 u B I 1 I 3,05?0,76(2x) 5” B (0.1bo.03) - 0,76(0.03) B See note 1 c / 1 0,89(0.035)max. I NOTES 1 Optional end shapes. 2 Longitudinal c
45、rimps in first 13 mm (0.5 in) of tape are recommended. 3 Tape lying in a free state on a flat surface should conform to that surface, except for crimps as specified. See note 2 Figure 8 - Examples of tape leader configuration for use with self-loading cartridge 11 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:33:49 MDTNo reproduction or networking permitted without license from IHS -,-,-