ISO/IEC 10885:1993
(Main)Information technology — 356 mm optical disk cartridge for information interchange — Write once
Information technology — 356 mm optical disk cartridge for information interchange — Write once
Specifies definitions of essential concepts, the environment in which the characteristics shall be tested, the environments in which the cartridge shall be operated and stored, the mechanical, physical and dimensional characteristics of the case and of the optical disk, the optical characteristics and the recording characteristics for recording the information once and for reading it many times, so as to provide physical interchangeability between data processing systems, the format for the physical disposition of the tracks and sectors, the error correction codes, the modulation methods used for recording and the quality of the recorded signals.
Technologies de l'information — Cartouches de disques optiques de 356 mm pour l'échange d'informations — Cartouches non réinscriptibles
General Information
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Standards Content (Sample)
INTERNATIONAL
ISO/IEC
STANDARD
10885
First edition
1993-l I-01
Information technology - 356 mm optical
disk cartridge for information
interchange - Write once
- Cartouches de disques optiques de
Technologies de Yin formation
356 mm pour I’khange d’informations - Cartouches non M’nscrip tibles
Reference number
ISO/I EC 10885: 1993(E)
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ISO/IEC 10885:1993(E)
Contents
Page
1
1 Scope
1
2 Conformance
1
3 Normative reference
1
Definitions
4
General
4.1
4.1.1 caddy.
4.1.2 case
4.1.3 optical disk
4.1.4 optical disk carrier
4.1.5 optical disk cartridge
4.1.6 perimeter ring
4.2 Disk
2
4.2.1 air-sandwich disk
2
4.2.2 clamping zone
2
4.2.3 coversheet
2
disk reference plane
4.2.4
2
entrance surface
4.2.5
2
hub
4.2.6
2
4.2.7 protective layer
2
recording layer
4.2.8
2
spindle
4.2.9
2
tilt
4.2.10
2
4.3 Optics
2
4.3.1 actual write power
2
baseline reflectance
4.3.2
2
birefringence
4.3.3
3
4.3.4 cross-talk level
3
4.3.5 mark
3
4.3.6 narrow band signal-to-noise ratio
3
4.3.7 noise floor
3
4.3.8 optical retardation
3
4.3.9 read power
3
4.3.10 write power
0 ISO/IEC 1993
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm,
without permission in writing from the publisher.
ISO/IEC Copyright Office l Case postale 56 l CH-1211 Genke 20 l Switzerland
Printed in Switzerland
ii
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ISO/IEC 10885:1993(E)
Format
4.4
4.4.1 band
4.4.2 format
4.4.3 track
4.4.4 track pitch
Errors
4.5
4.5.1 cyclic redundancy check (CRC)
4.5.2 defect management
error correction code (ECC)
4.5.3
error detection and correction (EDAC)
4.5.4
interleaving
4.5.5
Reed-Solomon code
4.5.6
3
Abbreviations and acronyms
4
Conventions
4
General description
4
Environment
4
81 . Testing environment
4
82 . Operating environment
5
Storage environment
83 .
5
8.3.1 Short-term storage
5
8.3.2 Long-term storage
5
8.3.3 Transportation
5
Safety requirements
9
5
Safety
91 .
5
Flammabi Ii ty
92 .
6
Dimensional and mechanical characteristics of the caddy
10
6
10.1 General
6
10.2 Caddy drawings
6
Relationship of sides and interface with carrier
10.3
6
Relationship of sides
10.3.1
6
Interface with carrier
10.3.2
6
Write protect features (see figure 4)
10.3.3
10.4 Materials
10.5 Mass
10.6 Caddy dimensions
Overall dimensions of the caddy
10.6.1
Opening force of the caddy door
10.6.2
10.6.3 Location of the caddy window
Caddy write protect tabs
10.6.4
. . .
111
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ISO/IEC 10885:1993(E)
7
10.6.5 Caddy autoload drive surfaces
17
11 Dimensional and mechanical characteristics of the carrier
17
11.1 General
17
11.2 Carrier drawings
18
11.3 Sides, reference axes and reference planes
18
11.3.1 Relationship between Side A and Side B
Reference axes and reference features 18
11.3.2
18
11.4 Materials
18
11.5 Mass
18
11.6 Location of the optical disk centre in the carrier
18
11.7 Overall dimensions of the carrier
cutouts 19
11.8
19
Il.9 Carrier latch points and latch actuation force
19
Carrier guide rails and carrier thickness
11.10
11.11 Carrier write protect hole
11.12 Carrier Side A or Side B sensor hole
11.13 Carrier disk type sensor notches
11.14 Carrier location within the caddy
location within the ca
11.15 Carrier locator pin slot characteristics an
11.16 Carrier latch point location when the carrier is inside the cad
11.17 Carrier latch release hole locations
22
11.18 Carrier latch release hole locations for unlatched carrier
22
11.19 Location of carrier locator pin slots
22
11.20 Carrier label location
23
11.21 Carrier label
2
Carrier label characteristics
11.22
37
12 Dimensional and physical characteristics of the disk
37
12.1 General
37
Protective layer
12.1.1
37
Unobstructed access
12.1.2
38
12.2 Disk drawings
38
12.3 Sides, reference axes, reference plane
Relationship of Sides A and B
12.3.1
Reference axes and reference planes
12.3.2
12.4 Dimensions of the disk
38
12.4.1 Outside diameter
3
12.4.2 Outside diameter of the recording zone
38
12.4.3 Inside diameter of the recording zone
38
12.4.4 Outside diameter of the clamping zone
39
12.4.5 lnside diameter of the clamping zone
39
12.4.6 Inner diameter of the optical disk
39
12.4.7 Optical disk inner diameter roundness
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ISO/IEC 10885:1993(E)
39
12.4.8 Location of the recording surface
39
12.4.9 Thickness of the clamping zone)
39
12.4.10 Inner diameter of the chamfer
39
12.4.11 Inner diameter chamfer angle
40
12.4.12 Outer diameter of the chamfer
40
12.4.13 Chamfer angle of the outer diameter
Dimensional characteristics of the protective layers 40
12.4.14
40
12.5 Mass
40
12.6 Moment of inertia
41
12.7 Imbalance
41
Apparent axial runout
12.8
41
12.9 Residual focus error
41
Handling requirements
13
41
13.1 Drop test
41
13.2 Dead weight strength
41
Exposure to ambient light
13.3
41
14 Interface between disk and drive
41
14.1 Clamping technique
41
14.2 Radial positioning
41
14.3 Reference surface
42
14.4 Clamping force
49
15 Characteristics of the protective layer
49
15.1 General
49
15.2 Characteristics of a 90 pm thick protective layer
49
15.2.1 Index of refraction
49
15.2.2 Thickness
49
Optical characteristics
15.2.3
49
Tilt
15.2.4
49
15.3 Characteristics of a 1,2 mm thick protective layer
49
Index of refraction
15.3.1
49
Thickness
15.3.2
49
15.3.3 Optical characteristics
49
15.3.4 Tilt
Characteristics of the recording layer
16
16.1 Test conditions
16.1.1 General
16.1.2 Read conditions
Write conditions
16.1.3
51
16.2 Baseline reflectance
51
16.2.1 General
V
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ISO/IEC10885:1993(E)
51
Actual value
16.2.2
51
Requirement
16.2.3
51
16.3 Write power requirement
51
16.4 Read power requirement
51
Prerecorded marks
16.5
51
Data written in user area
16.6
51
Reflectivity characteristics of written marks
16.6.1
51
Signals
16.6.2
52
Narrow-band signal-to-noise ratio
16.6.3
52
Cross-talk
16.6.4
52
17
Characteristics of the data organization on the disk
52
17.1 General description
53
Band organization
17.2
53
17.2.1 Recordable area in each band
53
17.2.2 Track shape in each band
53
17.2.3 Direction of rotation for each side
53
17.2.4 Track pitch
53
Radial eccentricity of pre-formatted information
17.2.5
54
Band numbers
17.2.6
54
17.2.7 Pre-formatted information in-track bit spacing
54
17.2.8 Rotational velocity
54
17.2.9 Number of sectors in each band
55
17.3 Formatted zones
55
Organization of the sectors in each band
17.3.1
56
Organization of the usable sectors
17.3.2
58
User sector organization
17.3.3
59
17.4 Requirements for interchange
59
17.4.1 Requirements for reading
59
17.4.2 Requirements for writing
59
Format
18
59
Track layout
18.1
59
Tracking
18.1.1
59
pads
18.1.2 Tracking
60
18.1.3 Tracking pad toierances
60
18.1.4 Tracking push-pull ratio
60
18.1.5 Focus
60
18.1.6 Recorded characteristics
60
Leader and manufacturing test sectors
18.2
60
Disk Identification Sector
18.3
61
Sectors of the bad sector map
18.4
61
18.5 Disk drive supplemental data
61
18.6 User supplemental data
vi
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ISO/IEC 10885:1993(E)
18.7 Write power calibration and auto-rewrite sectors 61
61
18.8 User sector format
User sector header 61
18.8.1
User data field preamble and pre-formatted tracking pad 62
18.8.2
62
18.8,3 Pre-formatted tracking pads
User data field 62
18.8.4
18.8.5 Error detection and correction (EDAC) 63
18.8.6 Interface sector gap 63
18.9 Sectors following the user sectors in each band 64
18.10 Coding method 64
Annexes
79
A - Definition of air cleanliness of class 100 000
80
B - Recommendation for transportation
81
C - Mechanical test method
83
D - Imbalance test method
84
E - Apparent axial runout test method
86
F - Residual focus error test method
89
G - Drop test method
90
H - Dead weight strength test method
91
J - Double-pass retardation test method
94
K - Signal characteristics test method
96
1, - 0ptical disk write power test method
98
M - Read power test method
99
Narrow-band signal-to-noise ratio test method
N-
100
P - Cross-talk test method
101
Q - Radial runout test method
103
R - Residual tracking error signal test method
vii
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ISO/IEC 10885:1993(E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the Inter-
national Electrotechnical Commission) form the specialized system for
worldwide standardization. National bodies that are members of IS0 or IEC
participate in the development of International Standards through technical
committees established by the respective organization to deal with particular
fields of technical activity. IS0 and IEC technical committees collaborate in
fields of mutual interest. Other international organizations, governmental and
non-governmental, in liaison with IS0 and IEC, also take part in the work.
In the field of information technology, IS0 and IEC have established a joint
technical committee, ISO/IEC JTC 1. Draft International Standards adopted by
the joint technical committee are circulated to national bodies for voting. Publi-
cation as an International Standard requires approval by at least 75 % of the
national bodies casting a vote.
International Standard ISO/IEC 10885 was prepared by Joint Technical Com-
mittee ISO/IEC JTC 1, Information technology, Sub-Committee SC 23, Optical
disk cartridges for information interchange.
Annexes A, C, D, E, F, G, H, J, K, L, M, N, P, Q and R form an integral part of
this International Standard. Annex B is for information only.
. . .
Vlll
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INTERNATIONAL STANDARD ISO/IEC 10885:1993(E)
356 mm optical disk cartridge for
Information technology -
Write once
information interchange -
1 scope
This International Standard specifies the characteristics of 356 mm optical disk cartridges of the
type providing for information to be written once and read many times. _
IS0 10885 specifies
- definitions of essential concepts,
- the environment in which the characteristics shall be tested,
- the environments in which the cartridge shall be operated and stored,
- the mechanical, physical and dimensional characteristics of the case and of the optical disk,
- the optical characteristics and the recording characteristics for recording the information once
and for reading it many times, so as to provide physical interchangeability between data pro-
cessing systems.
- the format for the physical disposition of the tracks and sectors, the error correction codes, the
modulation methods used for recording and the quality of the recorded signals.
Together with a standard for volume and file structure, lSO/IEC 10885 provides for full data
interchange between data processing systems.
2 Conformance
A 356 mm optical disk cartridge is in conformance with this International Standard if it meets all
the mandatory requirements herein.
Normative reference
3
through reference in this text, constitute
The following standard contains provisions which,
provisions of this International Standard. At the time of publication, the edition indicated was
valid. All standards are subject to revision, and parties to agreements based on this International
Standard are encouraged to investigate the possibility of applying the most recent edition of the
standard listed below. Members of IEC and IS0 maintain registers of currently valid international
standards.
1SOA EC 646: 199 1 Information Technology - IS0 7-bit coded character set for information
interchange.
4 Definitions
For the purposes of this International Standard, the following definitions apply.
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ISO/IEC 10885:1993(E)
4.1
General
4.1.1 caddy: An enclosure which protects the optical disk and carrier from contamination and
damage due to physical handling. The caddy may include space for physical labelling, write-inhibit
features and provisions for automatic handling.
4.1.2 case: The housing for an optical disk, that protects the disk and facilitates disk interchange.
4.1 .3 optical disk: A disk containing information in the form of marks in a recording layer that can
be read with an optical beam.
4.1.4 optical disk carrier: A framework which captures and holds an optical disk except when the
optical disk is mounted on the disk drive spindle. The carrier provides the interface with the equipment
for handling of an optical disk. The carrier and the optical disk are permanently mated and as a sub-
assembly interchangeable with any caddy, disk drive or library equipment.
4.1.5 optical disk cartridge: A device consisting of a case containing an optical disk.
4.1.6 perimeter ring: An outside diameter feature of the optical disk to provide an interface to the
carrier and to handling devices of an optical disk drive.
4.2
Disk
4.2.1 air-sand with disk: A disk which consists at least of a substrate with a recording layer and a
cover separated by two annular spaces provid ing an enclosed air gap for the recording layer.
The annular part of the disk within which the clamping force is applied by
4.2.2 clamping
the clamping device.
4.2.3 coversheet: A transparent covering placed at a pre-determined distance from the recording
surface to protect the optical disk from surface contamination and to cause surface contaminants to be
out of focus.
4.2.4 disk reference plane: A plane defined by the perfectly flat an nular surface of an ideal spindle
which contacts the clamp ing zone of the disk and which is normal to the axis of rotation.
4.2.5 entrance surface: The disk surface onto which the optical beam first impinges.
4.2.6 hub: The central feature on the disk which interacts with the spindle of the disk drive to
provide radial centring and clamping force and, in some cases, axial location.
4.2.7 protective layer: A transparent layer on the disk provided for mechanical protection of the
recording layer, through which the optical beam accesses the recording layer. A suitable substrate can
simultaneously function as the protective layer.
A layer of the disk on or in which data is written during manufacture and/or
4.2.8 recording layer:
use.
4.2.9 spindle: The part of the disk drive which contacts the disk and/or the hub.
with the normal to the disk
4.2.10 tilt: The angle which the normal to the entrance surface makes
reference plane.
4.3 Opt its
4.3.1 actual write power: The actual write power is two times the recording beam power exiting
the objective lens for a time averaged measurement of SO percent duty cycle optical pulses where the
pulse length is measured at one half the peak power.
4.3.2 baseline reflectance: The reflectance of an unwritten, non-grooved area of a disk through the
protective layer.
4.3.3 birefringence: The property of a material which causes incident light waves of different
polarizations to be refracted differently by the material.
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ISO/IEC 10885:1993(E)
cross-talk level: The ratio of the level of a spurious signal
4.3.4 generated by an adjacent track
the level of the signal of that track.
4.3.5 mark: A feature on the disk which may take the form of a physical change (for example a
hole, a pit or a bubble), a magnetic change (Kerr effect) or other change (for example phase change)
that can be sensed by the optical system.
narrow band signal-to-noise ratio: The ratio of the root mean square (RMS) voltage of a
4.3.6
signal at a specified frequency to the RMS voltage of the noise in a specified bandwidth, expressed in
decibels.
4.3.7 noise floor: The noise spectrum in a specified bandwidth.
4.3.8 opt ical retardat ion: The change, after passage through a birefringent material, of the phase
linearly po larized plane waves associated with a given propagation direction.
between t wo orth ogonally,
read power: The incident power specified at the entrance surface that can be used to read
4.3.9
data on the disk without damaging the recording layer.
4.3.10 write power: The incident power specified at the entrance surface used to produce marks.
4.4 Format
4.4.1 band: An annular area of the optical disk recording zone.
4.4.2 format: The arrangement or layout of the data on a data medium.
segment of the path which is to be followed by the read beam during
4.4.3 track: A X0-degree
reading or the write beam durin lg writing.
4.4.4 track pitch: The distance between adjacent track centrelines measured in a radial direction.
4.5 Errors
cyclic redundancy check (CRC): A method to detect errors in data.
4.5.1
4.5.2 defect management: In real time, refers to automated programs for altering read or write
focus or tracking when difficulties are detected, and for the decision to abandon sectors of high
power,
error content. In batch mode, refers to guidelines for disk rewrite or retirement.
NOTE: Dish retirement is retention of a disk which can be read but not written.
4.5.3 error correction CO& (KC): An error-detecting code designed to correct certain kinds of
errors in data.
error detection and correction (EDAC): A family of methods in which redundancy is added
4.5.4
to dat;i in known fashion and is written with the data. Upon readback, a decoder removes the redun-
dancy and uses the redundant information to detect and correct erroneous channel symbols.
the
4.5.5 interleaving: The process of allocating the physical sequence of units of data to render
data more immune to burst errors.
Reed-Solomon code: An error detection and/or correction code which is particularly suited to
4.5.6
the correction of errors which occur in bursts or are strongly correlated.
Abbreviations and acronyms
5
Address mark
AM
Bad sector map
BSM
Cyclic redundancy check
CRC
EDAC Error detection and correction
ECC Error correction code
ID inside diameter
IDENT Identification
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ISO/IEC 10885:1993(E)
OD Outside diameter
PAD Tracking pad
RLL Run length limited (code)
RPM Revolutions per minute
R-S/LDC Reed-Solomon long distance code
VFO Variable frequency oscillator
6
Conventions
In the sector headers, character data are recorded according to the IRV of ISO/IEC 646.
a)
All other data are stored as binary integers.
W
Multiple-byte binary data are stored least significant byte first.
c)
Numbers in hexadecimal notation are shown in parentheses.
4
General description
The 356 mm optical disk cartridge specified by this International Standard is two sided and of the
type in which the information is written once and read many times. Such a 356 mm optical disk
cartridge comprises three parts: an optical disk, a carrier, and a caddy. The carrier is for capture
and equipment handling of the optical disk. The optical disk and carrier sub-assembly are con-
tained in the caddy to provide protection from contaminants and to provide protection during
human handling. (see figure 1).
A coherent light beam is used to write data to, or to read data from, the disk. This International
Standard accommodates optical disks having either a 90 pm thick protective layer or a 1,2 mm
thick protective layer.
8 Environment
8.1 Testing environment
Unless otherwise specified, tests and measurements made on the ODC to check the requirements
of this International Standard shall be carried out in an environment where the air immediately
surrounding the ODC is within the following conditions.
Temperature 23 “C k 2 “C
Relative humidity 45 % to 55 %
Atmospheric pressure 75 kPa to 110 kPa
Air cleanliness Class 100 000 (see annex A)
Conditioning before testing 48 h minimum
Before testing, the ODC shall be conditioned in this environment for 48 h minimum. No con-
densation on or in the ODC shall occur.
82 . Operating environment
Optical disk cartridges used for data interchange shall be operated in an environment where the
air immediately surrounding the optical disk and carrier is within the following conditions when
the drive has reached its stable operating conditions.
10 “C to 50 “C
Temperature
10 % to 80 %
Relative humidity
29 “C maximum
Wet bulb temperature
Atmospheric pressure 75 kPa to I10 kPa
Temperature gradient IO “C/h maximum
4
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ISO/IEC 10885:1993(E)
Temperature gradient 10 “C/h maximum
10 %/h maximum
Relative humidity gradient
Air cleanliness Class 100 000 (see annex A)
No condensation on or in the ODC shall be allowed to occur.
If an ODC has been exposed during storage and/or transportation to conditions outside those
specified above, it shall be acclimatized in the operating environment for at least 2 h before use.
In the operating environment an ODC shall be capable of withstanding a thermal shock of up to
20 “(3 when inserted into, or removed from, the drive.
8.3 Storage environment
Storage environment is the ambient condition to which the ODC without any additional protec-
tive enclosure is exposed when stored.
Short-term storage
8.3.1
disk ipping
For a time of si x consecutive weeks t he optical cartridge within its speci fied sh
ironmenta cond
package sha II not be exposed to the env itions outside those given below.
-20 “C to +55 “C
Temperature
5 % to 90 %
Relative humidity
29 “C maximum
Wet bulb temperature
75 kPa to 110 kPa
Atmospheric pressure
Temperature gradient 20 “C/h maximum
Relative humidity gradient 20 %/h maximum
No condensation on or in the optical disk assembly shall be allowed to occur.
8.3.2 Long-term storage
For a storage period longer than six consecutive weeks the optical disk cartridge shall not be
exposed to environmental conditions outside those given below.
Temperature -10 “C to 50°C
Relative humidity 10 % to 90 %
Wet bulb temperature 29 OC maximum
Atmospheric pressure 75 kPa to 110 kPa
IS “C/h maximum
Temperature gradient
10 %/h maximum
Relative humidity gradient
Class 100 000 (see annex A)
Air Cleanliness
No condensation on or in the optical disk cartridge shall be allowed to occur.
8.3.3 Transportation
This International Standard does not specify requirements for transportation; guidance is given
in annex B.
Safety requirements
9
9.1 Safety
The cartridge and its components shall not constitute any safety or health hazard when used in
its intended manner or in any foreseeable use in an information processing system.
9.2 Flammability
The cartridge and its components shall be made from materials which, if ignited from a match
flame, do not continue to burn in a still, carbon dioxide atmosphere.
---------------------- Page: 13 ----------------------
ISO/IEC 10885:1993(E)
10 Dimensional and mechanical characteristics of the caddy
10.1 General (see figure 1)
The caddy contains the 356 mm optical disk which is captured within the carrier. The caddy
provides the optical disk and carrier sub-assembly protection from contaminants and during
human handling.
The caddy shall enclose the carrier and optical disk at all times when they are external to a disk
drive or an automated library storage equipment.
Any caddy shall be interchangeable with any carrier.
The caddy shall be a rigid, protective enclosure of rectangular shape and include a means for
positioning and retaining the carrier and optical disk.
The caddy shall have write protect tabs that interface with the carrier and the tabs shall also be
accessible for manual enable or inhibit (see figure 2).
The caddy shall have an access door for automated unload and load of the carrier and optical
disk (see figure 3).
The caddy shall have a window for viewing the label on the end of the carrier and the caddy
shall have areas provided for manufacturer labels (see figure 2).
The caddy shall provide drive/backup roller surfaces for disk drive cartridge load and unload
operations (see figure 8).
10.2 Caddy drawings
The caddy is represented schematically in tne following drawings:
shows a typical optical disk cartridge
Figure I
Figure 2 shows the caddy bottom surface
Figure 3 shows the caddy top surface
Figure 4 shows the caddy write protect tabs
Figure 5 shows the caddy overall dimensions
Figure 6 shows the caddy door opener force location
shows the caddy window location
Figure 7
shows the caddy autoload drive surfaces
Figure 8
Relationship of sides and interface with carrier
10.3
10.3.1 Relationship of sides
The caddy shall be interchangeable with any carrier and shall accept a carrier with either Side
A up or Side B up.
Interface with carrier
10.3.2
The caddy shall mechanically retain the carrier and optical disk sub-assembly. The caddy shall
allow the carrier and optical disk sub-assembly to be loaded and unloaded through the caddy
door.
10.3.3 Write protect features (see figure 4)
The caddy shall have write-protect features to interface with the carrier. Side A of the optical
disk shall be down and write-protected under the following conditions:
a) The letter “A” is correctly seen on the carrier label when viewed through the caddy
window.
b) The left write protect tab is positioned so that the arrow on the tab is in alignment with
the arrow on the caddy.
---------------------- Page: 14 ----------------------
ISO/IEC 10885:1993(E)
c) The carrier write protect feature blocks the write protect holes in the carrier (see 11.11).
d) The write protect mode selected shall remain with the carrier when loaded into a disk
drive and the caddy is removed from the disk drive.
e) The caddy write protect tabs shall be automatically moved into the position that is consis-
tent with the carrier write protect mode when the carrier and optical disk sub-assembly is
reloaded into a caddy.
Materials
10.4
The caddy shall be constructed from any suitable materials such that it meets the requirements of
this International Standard.
10.5 Mass
The total mass of the empty caddy shall be less than 1,5 kg.
10.6 Caddy dimensions
10.6.1 Overall dimensions of the caddy (see figure 5)
The length, width, and height of the caddy shall be:
= 443,76 mm &- 1,50 mm
LI
= 421,84 mm 2 0,64 mm
L2
La3 = 25,40 mm +, 0,Sl mm
10.6.2 Opening force of the caddy door (see figure 6)
The caddy door shall be opened by a force applied at the following locations:
= 35,81 mm t 3,2 mm
L3
L5 = 12,70 mm + 1,s mm
The opening force shall be:
= 7,SO N min.
h
10.6.3 Location of the caddy window (see figure 7)
The location of the caddy window from caddy side shall be:
L = 151,O mm + O,h4 mm
4.
The width of the window shall be:
= 101,O mm min.
b
The location of the window from the caddy top or bottom surface shall be:
= 6,35 mm 2 0,25 mm
14
The height of the window sh;lll be:
L‘) = 1230 mm min.
10.6.4 Caddy write protect tabs (see figure 4)
A caddy write protect tab shall be enabled when an arrow on the tab is in alignment with an
arrow on the caddy. The write protect conventions are specified in 10.3.3.
Caddy autoload drive surfaces (see figure 8)
10.6.5
The drive roller surface location on the top and bottom caddy surfaces from the caddy side
shall be:
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ISO/IEC 10885:1993(E)
= 9,65 mm k 0,Sl mm
L !O
The width of the roller surface of the drive shall be:
= 38,lO mm max.
hi
The force exerted on drive roller surface by the drive roller shall be:
= 62,30 N max.
F,
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ISO/IEC 10885:1993(E)
Figure 1 - Optical disk cartridge
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ISO/IEC 10885:1993(E)
Drive/backup roller
surfaces
Labe I
Write p
indicat
Write protect tabs
Figure 2 - Caddy bottom surface
10
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ISO/IEC 10885:1993(E)
ackup
surfa ces
Door
Figure 3 - Caddy top surface
11
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ISO/IEC 10885:1993(E)
Write protect tab\
shown -in otect
Pr
position
- ’
/ \/
Write protect tab
shown in enable position
Write protect
\ indicator /
\ /
Figure 4 - Caddy write-protect tabs
12
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ISO/IEC 10885:1993(E)
t=---Lz--l
L
I
t
L
3
Figure 5 - Caddy overall dimensions
13
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ISO/IEC 10885:1993(E)
L
5
Door opener force
locat ion
Figure 6 - Caddy door opener force location
14
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ISO/IEC 10885:1993(E)
Figure 7 - Caddy window location
15
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ISO/IEC 10885:1993(E)
-
-a
0
-hl
CT
Figure 8 - Caddy autoload drive surfaces
16
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ISO/IEC 10885:1993(E)
11 Dimensional and mechanical characteristics of the carrier
11.1 General (see figures 9 and 11)
The function of the carrier is to capture and retain the optical disk and to provide the interface
to optical disk drives and automated library storage equipment.
The carrier shall be capable of supporting and retaining an optical disk while being manipulated
or moved to any position during transportation or storage in a caddy, during load into and
unload from a disk drive and while being moved by automated library storage devices.
The carr
...
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