Digital Equipment StorageWorks RW555 User manual

Large Optical Disk
(RW555/RW557) Library
Service Manual
EK–RW55L–SM. B01
Digital Equipment Corporation
Maynard, Massachusetts

Second Edition, November 1997
This document contains information that is protected by copyright. All rights are
reserved. No part of this document may be photocopied, reproduced, or translated to
another language without the prior written consent of the seller. The information
contained in this document is subject to change without notice.
The seller makes no warranty of any kind with regard to this printed material,
including, but not limited to, the implied warranties of merchantability and fitness for a
particular purpose. The seller shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the furnishing, performance, or
use of this material.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The DIGITAL Logo is a trademark of the DIGITAL Equipment Corporation.
Copyright © DIGITAL Equipment Corporation 1997 All Rights Reserved
Printed in U. S. A.

EK–RW55L–SM. B01 iii
Contents
Revision Record...............................................................................................xi
About This Guide......................................................................................... xiii
1 Product Information
1.1 Product Matrix ....................................................................................1–1
1.2 Product Support...................................................................................1–2
1.3 Characteristics.....................................................................................1–2
2 Environmental/Installation/PM
2.1 Environmental Requirements...............................................................2–1
2.2 Primary Power/External Ground..........................................................2–1
2.3 Current Requirements..........................................................................2–1
2.4 Clearance Requirements......................................................................2–2
2.5 Weight-Bearing Requirements.............................................................2–2
2.6 Location Requirements........................................................................2–2
2.7 Responsibilities ...................................................................................2–3
2.8 Checkout Procedure.............................................................................2–3
2.9 Unpacking and Taking the Jukebox Off the Pallet ...............................2–3
2.10 Moving the Jukebox a Short Distance..................................................2–6
2.11 Shipping the Jukebox...........................................................................2–7
3 Product Configuration and Operation
3.1 Connections to the Jukebox.................................................................3–1
3.2 Configuring and Operating the Jukebox...............................................3–3
3.2.1 Connecting an Uninterruptable Power Supply (UPS)........................3–3
3.2.2 Connecting the SCSI Cables to the 4X-Drive Jukebox .....................3–4
3.2.3 Connecting the Jukebox as the Only Peripheral................................3–5
3.2.4 Removing the Customer Access Panel .............................................3–5
3.2.5 Connecting a 4- or 6-Box Jukebox as the Only Peripheral................3–6
3.2.6 Connecting the Jukebox with Other SCSI Peripherals ......................3–7
3.2.7 Removing the Customer Access Panel .............................................3–8
3.2.8 Connecting 4 or 6-Drive Jukeboxes with Other Peripheral Devices..3–9

Large Optical Disk (RW555/RW557) Library
iv EK–RW55L–SM. B01
3 Product Configuration and Operation (continued)
3.2.9 Connecting Peripheral Devices with Bus 1 ....................................3–10
3.2.10 Setting the SCSI IDs...................................................................... 3–13
3.2.11 Setting the LUN Mode...................................................................3–15
3.3 Control Panel Operation....................................................................3–19
3.3.1 Using Selection Buttons.................................................................... 3–20
3.3.2 Understanding Display Window Messages........................................3–21
3.3.3 Setting the SCSI IDs .........................................................................3–23
3.3.4 Setting the LUN Mapping Active Mode............................................ 3–24
3.3.5 Viewing the Current SCSI Address Settings......................................3–26
3.3.6 Changing the Current SCSI Address Settings ....................................3–27
3.3.7 Setting a Configuration Option.......................................................... 3–28
3.4 Loading an Optical Disk into the Jukebox......................................... 3–32
3.5 Ejecting an Optical Disk from the Jukebox .......................................3–34
3.6 Entering the Administration Menu Password to Enter ADMIN..........3–36
3.7 Changing the Administration Menu Password...................................3–37
4 Troubleshooting and Diagnostics
4.1 Understanding the Troubleshooting Process........................................4–1
4.1.1 Obtaining Troubleshooting Information ..............................................4–1
4.2 How “Possible Causes” Should be Evaluated......................................4–2
4.3 Reading Logs From the Control Panel.................................................4–3
4.4 Getting Error Information through the SCSI Bus.................................4–7
4.5 Diagnostic...........................................................................................4–7
4.6 Operation/Installation Error Information.............................................4–8
4.7 Recovery from Hardware Errors........................................................ 4–15
4.8 Running an Internal Test...................................................................4–33
4.9 Setting Write Verify.......................................................................... 4–37
4.10 Optical Disk Cleaning.......................................................................4–37
4.10.1 Cleaning Tools Available..................................................................4–38
4.11 Using the Eject Tool to Remove a Disk from the RWZ53 Drive .......4–39

Contents
EK–RW55L–SM. B01 v
5 Removal and Replacement
5.1 Field-Replaceable Assemblies.............................................................5–2
5.2 ESD Precautions..................................................................................5–2
5.3 Tools Required....................................................................................5–3
5.4 Disassembly/Reassembly Procedure....................................................5–3
5.5 Replacing an Optical Drive .................................................................5–6
5.6 Replacing the Power Supplies............................................................5–11
5.7 Replacing the Mailslot Assembly ......................................................5–13
5.8 Replacing the Control Panel Assembly..............................................5–15
5.9 Replacing the Interposer PCAs..........................................................5–17
5.10 Replacing the Picker..........................................................................5–18
5.11 Removing/Replacing the Translate Frame.........................................5–24
5.12 Removing/Replacing the Vertical Encoder Strip................................5–29
5.13 Replacing the Vertical Motion Motor................................................5–31
5.14 Replacing the Vertical Motor Gear Box.............................................5–32
5.15 Replacing the Controller PCA ...........................................................5–38
5.16 Replacing the Power Distribution PCA..............................................5–39
5.17 Replacing the SCSI Interface/LUN Converter PCA...........................5–40
5.18 Replacing the Vertical-Path-Clear PCA.............................................5–42
5.19 Re-initializing the Jukebox Controller PCA RAM After Service........5–43
5.19.1 Variables Set by “Set Defaults”.........................................................5–44
5.19.2 Variables Set by “Clear Odometers”..................................................5–44
5.20 Field Replaceable Units in the Library ..............................................5–45
5.21 Recommended Service Kits...............................................................5–48
5.22 Miscellaneous....................................................................................5–58
6 Theory of Operation
6.1 Autochanger Robotics .........................................................................6–1
6.1.1 Movements..........................................................................................6–1
6.2 The Autochanger Controller PCA........................................................6–3
6.3 Interposer PCAs ..................................................................................6–5
6.4 Power Supplies..................................................................................6–10
6.5 SCSI Repeater/LUN Converter PCA .................................................6–10
6.5.1 Component Description.....................................................................6–11
6.5.2 Logical Unit Number Mapping Capability.........................................6–13
6.6 Single-Picker Mode...........................................................................6–18
6.6.1 Disk Exchanges in Single-Picker Mode.............................................6–18
6.7 Element Numbering ..........................................................................6–19
6.8 Disk Storage Slot Numbering Sequence.............................................6–19

Large Optical Disk (RW555/RW557) Library
vi EK–RW55L–SM. B01
6 Theory of Operation (continued)
6.8.1 Limited Access Slots.........................................................................6–24
6.9 4X Multi-function Optical Drives...................................................... 6–27
6.9.1 Controller PCA................................................................................. 6–28
6.9.2 SCSI Controller................................................................................. 6–28
6.9.3 Data Buffer.......................................................................................6–28
6.9.4 Formatter/Sequencer.........................................................................6–28
6.9.5 Servo PCA........................................................................................6–28
6.9.6 DSP Microprocessor and Support/Servo Control Loops.....................6–28
6.9.7 Read and Write Channel Electronics................................................. 6–29
6.10 Mechanism Assembly.......................................................................6–29
6.10.1 Loader Mechanism............................................................................ 6–29
6.10.2 Optical Head.....................................................................................6–29
6.10.3 4X Drive Mechanism........................................................................6–30
6.10.4 Controller..........................................................................................6–30
6.10.5 CPU..................................................................................................6–31
6.10.6 Gate Array........................................................................................6–31
6.10.7 DSP (Digital Signal Processor).......................................................... 6–31
6.10.8 Read/Write Channel Electronics .......................................................6–31
6.10.9 Loading Motor.................................................................................. 6–31
6.10.10 Bias Magnet...................................................................................... 6–31
6.10.11 Optical Head..................................................................................... 6–31
6.11 Optical Disk Layout and Error Correction......................................... 6–32
6.11.1 Disk Formats.....................................................................................6–32
6.11.2 Optical Disk Layout..........................................................................6–32
6.11.3 User Zone Layout .............................................................................6–33
6.12 Drive Defect Management ................................................................6–44
6.12.1 Slip Sparing Algorithm ..................................................................... 6–45
6.12.2 Replacement Sparing Algorithm ....................................................... 6–46
6.12.3 Error Thresholds ...............................................................................6–46
6.13 The SCSI Interface............................................................................ 6–47
6.13.1 Single-Ended and Differential SCSI Interface ................................... 6–48

Contents
EK–RW55L–SM. B01 vii
Figures
2–1 Clearance Requirements......................................................................2–2
3–1 Right Side Panel Features (4X version) ...............................................3–1
3–2 Jukebox Display Menu Tree................................................................3–5
3–3 Loading an Optical Disk......................................................................3–6
2–1 Clearance Requirements......................................................................2–2
3–1 Right Side Panel Features....................................................................3–1
3–2 Connecting a 4 or 6-Drive Jukebox as the Only Peripheral ..................3–6
3–3 Connecting a 4 or 6-Drive Jukeboxes with Other Peripheral Devices.3–10
3–4 Connecting Peripheral Devices with Bus 1 ........................................3–11
3–5 Connecting Peripheral Devices with Bus 1 ........................................3–13
3–6 The Jukebox Control Panel and Mailslot ...........................................3–19
3–7 Jukebox Display Menu Tree – 4X Drives ..........................................3–22
3–8 Loading an Optical Disk....................................................................3–32
4–1 The Autochanger Returns Suspect FRUs .............................................4–2
4–2 Evaluating Suspect FRUs ....................................................................4–3
4–3 Information and Tests Through the SCSI Bus......................................4–7
5–1 Access Panels......................................................................................5–4
5–2 Online Drive Replacement Procedure..................................................5–7
5–3 Power Supplies..................................................................................5–12
5–4 Mounting Screws (24/42 Power Supply)............................................5–13
5–5 Mailslot Connector on Upper Interposer PCA....................................5–14
5–6 Mailslot Assembly Mounting Screws.................................................5–15
5–7 Rear of Control Panel Assembly........................................................5–16
5–8 Upper Interposer PCA .......................................................................5–17
5–9 Lower Interposer PCA.......................................................................5–18
5–10 Picker Umbilical Cable......................................................................5–19
5–11 Picker Translate Cable.......................................................................5–20
5–12 Picker Translate Cable (stowed) ........................................................5–21
5–13 Stopping Vertical Motor Gear Box Motion........................................5–21
5–14 Picker Capture Bracket Mounting......................................................5–22
5–15 Picker Capture Bracket......................................................................5–23
5–16 Rotating the Picker Assembly Out of the Translate Frame.................5–23
5–17 Translate Frame Raised for Easier Access .........................................5–24
5–18 Stopping Vertical Motor Gear Box Motion........................................5–25
5–19 Vertical Encoder Strip Mounting Peg ................................................5–26
5–20 Removing the Visual Locator Bracket...............................................5–27
5–21 Picker Translate Frame Tensioners....................................................5–27

Large Optical Disk (RW555/RW557) Library
viii EK–RW55L–SM. B01
Figures (continued)
5–22 Translate Frame Tensioner Mount.....................................................5–28
5–23 Translate Frame Tensioner Released.................................................5–28
5–24 Retaining Peg on Lower End of the Vertical Encoder Strip...............5–30
5–25 Upper Encoder Strip Mount ..............................................................5–30
5–26 Vertical Motion Motor......................................................................5–31
5–27 Slave Rope Tensioner Assembly.......................................................5–32
5–28 Pivoting the Tensioner Lever to Release Tension..............................5–33
5–29 Taking the Drive Rope Off the Top...................................................5–33
5–30 Disconnecting the Drive Rope from a Tensioner...............................5–34
5–31 Two Ends of the Slave Rope Tensioner............................................. 5–34
5–32 Disconnecting the 3-Rope Coupler.................................................... 5–35
5–33 Rear Side of Vertical Motor Gear Box ..............................................5–36
5–34 The Rope and Pulley System.............................................................5–36
5–35 Positioning the Tensioner to Mount on Translate Frame....................5–37
5–36 Controller PCA .................................................................................5–38
5–37 Power Distribution PCA....................................................................5–39
5–38 SCSI Repeater/LUN Converter Enclosure.........................................5–40
5–39 SCSI Repeater/LUN Converter PCA.................................................5–41
5–40 SCSI Repeater/LUN Converter PCA Jumpers ................................... 5–41
5–41 Vertical Path Clear............................................................................5–42
5–42 Vertical Path Clear PCA Mounting Screws .......................................5–43
5–43 Jukebox Exploded View....................................................................5–51
5–44 Jukebox Pulley and Rope Diagram....................................................5–57
6–1 SCSI Command Translation for Autochanger Operation .....................6–1
6–2 Autochanger Controller PCA ..............................................................6–3
6–3 Upper Interposer PCA.........................................................................6–5
6–4 Lower Interposer PCA.........................................................................6–6
6–5 Drive Numbering ................................................................................6–8
6–6 Power Supplies and Power-on Sequence ........................................... 6–10
6–7 SCSI Repeater/LUN Converter PCA.................................................6–11
6–8 SCSI Repeater/LUN Converter Passthrough Mode (6 drive).............. 6–14
6–9 SCSI Repeater/LUN Converter Mapping Active Mode (6 drive).......6–16
6–10 Element and Slot Numbers................................................................6–19
6–11 Slot and Element Numbering Sequence (1 of 3)................................6–20
6–12 Slot and Element Numbering Sequence (2 of 3) ................................6–21
6–13 Slot and Element Numbering Sequence (3 of 3) ................................6–22
6–14 Slot Numbering Decal.......................................................................6–23
6–15 Limited Access Slots at the Bottom of the Stacks..............................6–24
6–16 Limited Access Slots at the Top of the Stacks...................................6–25

Contents
EK–RW55L–SM. B01 ix
Figures (continued)
6–17 One-Finger Grab Recovery Areas at the Bottom of the Stacks...........6–26
6–18 One-Finger Grab Recovery Areas at the Top of the Stacks ................6–26
6–19 4X-Drive Functional Diagram...........................................................6–27
6–20 4X-Drive Functional Diagram...........................................................6–30
6–21 Optical Disk Layout ..........................................................................6–33
6–22 User Zone Layout for 650-Byte Media ..............................................6–35
6–23 User Zone Layout for 1.3-GByte Media, g=1 ....................................6–36
6–24 User Zone Layout for 1.3-GByte Media, g=16...................................6–37
6–25 User Zone Layout for 2.3-GByte Media, 512 Bytes/Sector................6–40
Tables
1–1 4X-Drive Jukeboxes ............................................................................1–1
1–2 Jukebox Capacities by 7 Disk Density and Number of Slots ................1–1
1–3 Optical Disk Standards Met by Digital Optical Disks ..........................1–2
1–4 Optical Disk Drive Mechanism and Jukebox .......................................1–2
1–5 Environmental Specifications..............................................................1–4
1–6 Power Requirements............................................................................1–6
1–7 Service Characteristics ........................................................................1–6
1–8 Product Certifications..........................................................................1–6
1–9 Digital Optical Drives..........................................................................1–7
3–1 UPS Power Requirements....................................................................3–3
3–2 SCSI Cable Length Limitations...........................................................3–4
3–3 SCSI Configuration Choices................................................................3–8
3–4 Default SCSI and LUN Settings.........................................................3–14
3–5 Default LUN Settings........................................................................3–16
3–6 LUN Mapping If “DRVs BUS 1” SCSI Addresses Changed ..............3–17
3–7 Default SCSI and LUN Settings.........................................................3–23
3–8 Default LUN Settings........................................................................3–25
3–9 Default SCSI and LUN Settings.........................................................3–27
3–10 Configuration Choices.......................................................................3–30
4–1 Information Logs.................................................................................4–4
4–2 Operation Errors..................................................................................4–8
4–3 Hardware Errors and Recovery Procedures........................................4–15
4–4 Micro-Move Error Codes...................................................................4–22
4–5 Micro-Move ID .................................................................................4–25
4–6 Tests Available from the Control Panel .............................................4–34
5–1 List of Field Replaceable Units..........................................................5–45
5–2 Exchange Parts..................................................................................5–48

Large Optical Disk (RW555/RW557) Library
x EK–RW55L–SM. B01
Tables (continued)
5–3 Non-Exchange Parts.......................................................................... 5–49
5–4 Common Resource Parts ...................................................................5–58
6–1 Passthru Mode – Six Drives ..............................................................6–14
6–2 LUN Mapping Active – Six Drives ...................................................6–15
6–3 Default SCSI and LUN Settings........................................................6–17
6–4 Element Numbering in the Jukebox................................................... 6–19
6–5 Values for n and m for 1.3 Gbyte with g=1 6 (1024 media)...............6–38
6–6 Physical Revolution to Logical Track Layout....................................6–39
6–7 4X 1024 Bytes/Sector Disk Structure ................................................ 6–41
6–8 4X 512 Bytes/Sector Disk Structure.................................................. 6–42
6–9 Technical Comparison of 1X, 2X, and 4X Optical Drives ................. 6–43
6–10 Error Thresholds\x11.........................................................................6–47
Reader’s Comment Form........................................................Inside Back Cover

EK–RW55L–SM. B01 xi
Revision Record
This Revision Record provides a concise publication history of this manual. It lists the
manual revision levels, release dates, and reasons for the revisions. It also describes
how the changes to affected pages are marked in the manual.
The following revision history lists all revisions of this publication and their effective
dates. The publication part number is included in the Revision Level column, with the
last entry denoting the latest revision. This publication supports the Large Optical Disk
Library.
Revision Level Date Summary of Changes
EK–RW55L–SM. A01 December, 1996 Original Release
EK–RW55L–SM. B01 November, 1997 Corrects Table 5–1. Also
adds recommended
service kits and common
resource parts to end of
Chapter 5.

end

EK–RW55L–SM. B01 xiii
About This Guide
This section identifies the users of this manual and describes the contents and structure.
In addition, it includes a list of conventions used in the manual.
This manual provides a product overview, installation, operation, and maintenance
information for the Large Optical Disk Library.
Intended Audience
This manual is intended for people who will install, operate, and maintain the
Large Optical Disk Library.
Document Structure
This manual contains the following chapters:
Chapter 1. Product Information
Chapter 1 presents the physical characteristics and environmental specifications
for the Large Optical Disk Library.
Chapter 2. Environmental/Installation/PM
Chapter 2 describes the environmental requirements, installation procedures, and
preventive maintenance information for the Large Optical Disk Library.
Chapter 3. Product Configuration and Operation
Chapter 3 describes how to configure and operate the Library.
Chapter 4. Troubleshooting and Diagnostics
Troubleshooting and diagnostics describes the troubleshooting procedures and
diagnostic routines for the Library.
Chapter 5. Removal and Replacement
This chapter describes how to remove and replace the field replaceable
subassemblies in the Library. It also contains a list of field replaceable units and
recommended service kits.

Large Optical Disk (RW555/RW557) Library
xiv EK–RW55L–SM. B01
Chapter 6. Theory of Operation
This chapter discusses the following aspects of the robotics of the
RW555/RW557 jukeboxes, the autochanger, command execution, mechanics,
autochanger controller PCA, interposer PCAs, power supplies, LUN conversion,
Picker and Picker Modes, Element Numbering and Slot Numbering, and optical
disk drives.
Conventions
This manual uses the following conventions:
Style Meaning
boldface type For emphasis
italic type For emphasis and manual titles
MISLOAD Displayed message
ENTER Command

EK–RW55L–SM. B01 1–1
1
Product Information
This chapter provides the physical characteristics and environmental specifications for
the RW555/RW557 Large Optical Disk Library.
1.1 Product Matrix
Table 1–1 4X-Drive Jukeboxes
Model Description
RW555 Optical jukebox with four 4X-capacity multi-function optical drives
and capacity for up to 128 rewritable or MO-Worm disks. One
blank disk included. Single-ended and differential SCSI interfaces
with LUN conversion.
RW557 Optical jukebox with six 4X-capacity multi-function optical drives
and capacity for up to 238 rewritable or MO-Worm disks. One
blank disk included. Single-ended and differential SCSI interfaces
with LUN conversion.
Table 1–2 Jukebox Capacities by 7 Disk Density and Number of Slots
Disk Capacity/Format Number of Slots Maximum Jukebox
Capacity
4X-Density Disks–
2.6 GByte,
1024 bytes/sector 128 238 332.8 GBytes 618.8 GBytes
2.3 GByte
512 bytes/sector 128
238 294.4 GBytes
547.4 GBytes

Large Optical Disk (RW555/RW557) Library
1–2 EK–RW55L–SM. B01
1.2 Product Support
Table 1–3 Optical Disk Standards Met by DIGITAL Optical Disks
Disk Type Capacity/Format Standard
Rewritable 1X
594 Mbytes 512
bytes/sector
650 Mbytes 1024
bytes/sector
Meets ANSI and ISO standards
for Continuous-Composite (CC)
format–conforms to ISO/IEC DIS
10089A; ANSI X3.212-199x.
2X –
1.2 GByte 512 bytes/sector
1.3 GByte 1024 bytes/sector
Meets ECMA 184 standard for
Continuous-Composite (CC)
format.
4X –
2.3 GByte 512 bytes/sector
2.6 GByte 1024 bytes/sector
Meets ISO/IEC 10089A, 11560,
and 14517 standards for
Continuous-Composite (CC)
format.
Write-Once 2X –
1.2 GByte 512 bytes/sector
1.3 GByte 1024 bytes/sector
Meets ECMA 184 standard for
Continuous-Composite (CC)
format.
4X –
2.3 GByte 512 bytes/sector
2.6 GByte 1024 bytes/sector
Meets ISO/IEC 10089A, 11560,
and 14517 standards for
Continuous-Composite (CC)
format.
1.3 Characteristics
This section provides the physical characteristics and environmental
specifications for the jukebox.
Table 1–4 Optical Disk Drive Mechanism and Jukebox
RWZ53 Drive (4X)
Technical Characteristics (Drive)
Rotational speed 3000 rpm (1X & 2X)
3600 rpm (4X)
Average seek 25.0 ms (4X)
Average access time 35 ms (4X disks)
33.3 ms (1X and 2X disks)

Chapter 1. Product Information
EK–RW55L–SM. B01 1–3
Table 1–4 Optical Disk Drive Mechanism and Jukebox (continued)
RWZ53 Drive (4X)
Read transfer rate-max.
sustained - for 1024 bytes/sector up to 1.69 Mb/s (4X disks)
up to 1.24 Mb/s (2X disks)
up to 1.04 Mb/s (1X disks)
Write transfer rate- max.
sustained - for 1024 bytes/sector up to 0.84 Mb/s (4X disks)
up to 0.62 Mb/s (2X disks)
Burst transfer rate
(synchronous) 5 Mb/s
Burst transfer rate
(asynchronous) 3 Mb/s
Read/Write error rate less than 1 block in error per 1014 bytes
Buffer size 1 MB
Read buffering readaheads
Write buffering immediate reporting write re-ordering
Interface SCSI-2 single-ended/Differential
asynchronous/synchronous
Physical Characteristics (Jukebox)
Height 1809 mm (71.2 in.)
Width 876 mm (34.5 in.)
Depth 736 mm (28.9 in.)
Weight (net)
4-drive
6-drive 217.73 Kg (480 lb.) 226.23 Kg (498.75 lb.)
Weight (packaged)
4-drive
6-drive 290.3 Kg (640 lb.) 301.64 Kg (665 lb.)

Large Optical Disk (RW555/RW557) Library
1–4 EK–RW55L–SM. B01
Table 1–5 Environmental Specifications
Autochanger Drive Media
Temperature
Operating 10° to 40°C 5° to 45°C (4X)
5° to 50°C (2X) 10° to 60°C
Non-operating -40° to 70°C -40° to 60°C (4X)
-40° to 70°C (2X) -10° to 50°C
Max. Temperature
gradient 10°C per hour 10° per hour (2X and 4X) 10°C per hour
Transportation (<14 consecutive
days) -40° to 60°C
Humidity (non-condensing)
Operating (relative) 10 to 90% 5 to 90%
(2x AND 4x) 10 to 80%
Non-operating w/o disk 5 TO 95% 5 TO 95%
(2x AND 4x) 10 TO 90%
Maximum wet bulb 29°C 29°C 29°C
Shock (non-operating)
End-use, handling (half-sine) 150 g (3 ms) 25 g (11 ms) (4X)
20 g (11 ms) (2X) 760 mm drop (to 2
mm
vinyl-
covered
concrete)
Transportation
(trapezoidal) 30 g (742 cm/s) (4X)
30 g (523 cm/s)
(2X)

Chapter 1. Product Information
EK–RW55L–SM. B01 1–5
Table 1–5 Environmental Specifications (continued)
Autochanger Drive Media
Vibration (5-500 Hz range)
Operating (max. accel.) 0.21 g rms 0.3 g rms (4X)
0.5 g rms (2X) >0.21 g rms
Non-operating random 2 g rms 3 g rms
Non-operating
swept sine 0.5 g (0-peak) 1 g (0-peak) (2X and 4X)
Altitude
Operating 4,572 m
(15,000 ft)
Non-operating 15,240 m
(50,000 ft)
Acoustic Emissions
Operating 62.5 dB (L noise power emission
level)
Idle 47.5 dB (L noise power emission
level)
Particulates
Less than 200 micrograms/cubic
meter particles suspended
Electrostatic Discharge
Air gap (operating) 5 to 15 kV 0 to 10 kV (4X)
Air gap (non-operating
survival) 0 to 25 kV 0 to 25 kV
Direct contact (operating) 0 to 4 kV 0 to 4 kV
Cooling Requirements
15 CFM bi-
directional
through drive

Large Optical Disk (RW555/RW557) Library
1–6 EK–RW55L–SM. B01
Table 1–6 Power Requirements
Line voltage 100-240 V
Line frequency 50-60 Hz
Power consumption (typical) 340 W 1160.4 BTU
Power consumption (maximum) 560 W 1911.2 BTU
Table 1–7 Service Characteristics
Mean swaps between failures (MSBF)–robotics 2 million
Mean swaps between failures (MSBF)–drive 600,000
Mean time between failures (MTBF)–robotics 100,000
Mean time between failures (MTBF)– drive 80,000 hours (2X) 100,000
hours (4X)
Mean time to repair 2 hours
Preventive maintenance none required*
* for high-usage or zero downtime installations, see Product Support Plan for
special, preventive maintenance schedules
Table 1–8 Product Certifications
Safety EN 60950/IEC 950
UL 1950 listed or recognized
CSA 950-TUV approved to VDE
0805 05.90
Electromagnetic emissions FCC 47 CFR Part 15 Subpart J-
Class “A” EN 55022/CISPR 22,
Level “A”; SABS
VCCI Level 2
Laser CDRH 21 CFR Chapter 1, Subpart J
Registered IEC 825
TUV approved to VBG93, VDE
0837
TTL to Decision 472
BS 4803 part 2 approved