Add cover graphic to the master page in this space. (Ask the Art Director in Irvine, who works for Elke Hirschmann, to design it for you; it should match Note: Delete the DLTtape logo and the book title if already included in
Quantum, the Quantum logo, and the DLTtape logo are trademarks of Quantum Corporat io n ,
registered in the U.S.A. and other countries. DLT, DLTtape, and DLTSage are trademarks
of Quantum Corporation.
Other company and product names used in this document are trademarks, registered
trademarks, or service marks of their respective owners.
Legal Disclaimers
The information contained in this document is the exclusive property of Quantum Corporation.
Quantum retains its copyright on the information contained herein in all cases and situations of
usage, including derivative works. The possessor agrees to safeguard this information and to
maintain it in confidence and not re-publish it in whole or in part without Quantum’s prior
written consent.
DLT VS160 Product Specification
Quantum reserves the right to make changes and improvements to its products, without
incurring any obligation to incorporate such changes or improvements in units previously sold
or shipped.
It is the responsibility of the user to carefully read and understand the User Manual statements
for Class A Equipment and Class B Equipment that appear on page iii and page iv,
respectively.
Contact Information
You can request Quantum publications from your Quantum Sales Representative or order them
directly from Quantum.
Telephone numbers and street addresses change frequently; for the latest, up-to-date contact
information, visit:
www.quantum.com
Telephone numbers, street addresses, time zones, and other pertinent facts are listed in the
Support section of the web site.
iiSeptember 200481-81275-01
DLT VS160 Product Specification
Revision History
All revisions made to this document are listed below in chronological order.
Document ReleaseDateSummary of Changes
002287-01 14December 2002Initial Release
002287-01 A15Jan. 22, 2004Converted to FrameMaker, using Quantum template and St yle
Guide per ECO C008880.
81-81275-01 A01July 27, 2004Changed the GB definition from 1,073,741,824 bytes to
1,000,000,000 bytes in the glossary; changed document part
number per ECO C009974.
81-81275-01 A02Sept. 14, 2004Minor changes in Chapter 6. Per ECO C011131
User Manual Statements for Class A Equipment
(Internal Tape Drive)
CE Notice (European Union). Marking by the symbol indicates compliance of this tape drive
to the EMC Directive (89/336/EEC), and Low Voltage Directive (73/23/EEC) of the European
Union. Compliance with these directives implies conformity to the following European Norms
(the equivalent international standards and regulations are in parentheses):
•EN 60950/A11: 1997/(IEC 60950/A4: 1996), Safety of Information Technology Equipment including Electrical Business Equipment
•Part 3 - Radiated Electromagnetic Field Requirements
•Part 4 - Electrical Fast Transient/Burst (EFT) Requirements
•Part 5 - Surge Requirements
•Part 6 - Conducted disturbances, induced by radio-frequency fields Requirements
•Part 8 - Power frequency magnetic field Requirements
•Part 11 – Voltage dips, short interruptions and voltage variations Requirements
•EN 55022:1998/(CISPR 22:1997), Class B, “Limits and Methods of Measurement of
Radio Disturbance Characteristics of Information Technology Equipment.”
The following standards only apply to the tabletop tape drive:
•EN 61000-3-2: 1995, Limits for harmonic current emissions (equipment input) current up
to and including 16 A per phase
•EN 61000-3-3: 1995, Limitation of voltage fluctuations and flicker in low-voltage supply
systems for equipment with rated current up to and including 16A.
FCC Notices (U.S. Only). This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause
undesired operation.
81-81275-01September 2004iii
User Manual Statements for Class B Equipment
(Tabletop Tape Drive)
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 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 user may find the following booklet prepared by the Federal Communications
Commission helpful: How to Identify and Resolve Radio-TV Interference Problems. This
booklet is available from the U.S. Government Printing Office, Washington D.C., 20402.
Stock No. 004-00398-5
DLT VS160 Product Specification
All external I/O cables connecting to this unit need to be shielded. See the User Manual or
installation instructions for more options.
CautionAny changes or modifications made to this equipment may void the
user’s authority to operate this equipment.
FCC Label
ivSeptember 200481-81275-01
DLT VS160 Product Specification
IC Notice (Canada)
This Class [B] digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
VCCI Notice (Japan)
Class B ITE Translation:
This is a Class B product based on the standard of the Voluntary Control Council for
Interference from Information Technology Equipment (VCCI). If this product is used near a
radio or television receiver in a domestic environment, it may cause radio interference. Install
and use the equipment according to the instruction manual.
This chapter describes the purpose, scope, and audience of this manual. It also lists related
documentation and the conventions used in this manual.
1.1Purpose and Scope
This manual describes the DLT VS160 tape drive, listing its physical, functional, and performance
specifications, and describing the standards that the tape drive meets.
CHAPTER 1
Chapter 1Introduction
1.2Audience
The primary audience for this manual consists of engineers and technicians interested in integrating
the DLT VS160 tape drive into tape libraries and other equipment.
1.3Related Documents
•DLT VS160 Tape Drive Installation and Operations Guide (81-81191-01)
•DLT VS160 SCSI Interface Guide (81-81268-01)
81-81275-01 REV A02September 20041-1
Structure of this ManualDLT VS160 Product Specification
1.4Structure of this Manual
The manual contains the chapters listed in Table 1-1.Table 1- 1.Chapters in this Manual
ChapterDescription
Chapter 1, “Introduction”This is the chapter you are reading now.
Chapter 2, “Physical
Specifications”
Chapter 3, “Functional
Specifications”
Chapter 4, “Performance
Specifications”
Chapter 5, “Power Specifications”Describes the power specifications of the tape drive.
Chapter 6, “Environmental
Specifications”
Chapter 7, “Shock and Vibration
Specifications”
Chapter 8, “Emission and
Immunity Specifications”
Chapter 9, “Safety Specifications”Describes the safety specifications to which the tape drive complies.
“Glossary” Provides a list of technical terms commonly used in the computer
Contains the physical description of the tape drive, including the
environmental temperature and humidity specifications. This chapter
also shows the tape drive’s mounting hole dimensions.
Contains the functional specifications of the tape drive, including the
LED functions.
Describes the performance specifications of the tape drive, including
timing, media, and the reliability of the tape drive.
This chapter describes the tape drive’s environmental specifications.
Describes the shock and vibration specifications of the tape drive.
Describes the emission and immunity specifications of the tape drive.
industry and abbreviations specifically used in this manual.
This manual uses the following conventions to designate specific elements.
Table 1-2.Typographical Conventions
ElementConventionExample
CommandsUppercase (unless case-sensitive)FORMAT UNIT
MessagesUppercaseINVALID PRODUCT
NUMBER
Hexadecimal NotationNumber followed by lowercase h25h
Binary NotationNumber followed by lowercase b101b
Decimal NotationNumber without suffix 512
AcronymsUppercasePOST
AbbreviationsLowercase, except where standard
usage requires uppercase
Dimensions in Figures No units specified (Inches understood
unless otherwise specified)
1.7Reader Comments
Quantum is committed to providing the best products and service. We encourage your comments,
suggestions, and corrections for this manual. Please send all comments to this address:
Quantum Technical Publications
4001 Discovery Dr.
Suite 1100
Boulder, Colorado USA 80 303
Mb (megabits)
MB (megabytes)
0.57 EJECT DISTANCE
1-4September 200481-81275-01 REV A02
Chapter 2Physical Specifications
This chapter contains the physical description of the DLT VS160 tape drive, including the internal and
tabletop tape drives, and the environmental temperature and humidity specifications.
Each time you apply power to the tape drive, or reset the tape drive, it performs a power-on self-test
(POST). During POST, the LEDs illuminate one at a time, from left to right. First, the Ready LED
(Green) comes on, followed by the Fault LED (Orange) approximately one second later, then the
Clean LED (Orange) approximately one second later, then four seconds later the Media LED
(Orange) illuminates. Each LED signifies a different portion of the power-on process. All LEDs turn
off momentarily. If no data cartridge is loaded in the tape drive, the Ready LED then illuminates
steadily and POST is complete. This process takes approximately eight seconds. If a data cartridge is
in the tape drive during POST, the Ready LED flashes until the tape drive executes a mid-tape load,
which can take several minutes. As POST completes, the tape drive makes a faint buzzing noise for
several seconds. The noise associated with this activity is normal for this technology and does not
indicate a problem with the tape drive.
3.1.2 Normal Operation — Ready LED Indicator Activity
During normal operation, the Ready LED displays one of the three following states. The Ready LED
acts independently of the other LEDs.
Table 3-2.Normal Operation — Ready LED Indicator Activity
StateDescription
OffIndicates that there is no power to the tape drive.
OnIndicates that power is on, no data cartridge is loaded, or a loaded data cartridge is
idle with no tape motion.
BlinkingA data cartridge is in the process of loading, or there is tape motion on a loaded data
cartridge. Tape motion includes reading, writing, locating, rewinding, calibrating,
and so on.
3.1.3 Normal Operation — Fault / Clean / Media LEDs
Indicator Activity
The Fault, Clean, and Media LEDs work together to display the status of the tape drive.
Table 3-3.Normal Operation — Fault / Clean / Media LEDs Indicator Activity
FaultCleanMediaDescription
–Unsupported format, unsupported data cartridge type, or
damaged data cartridge
A DLT1 (DLT VS 80) formatted DLTtape™ IV data
cartridge is loaded.
–Calibration error or permanent write/read error
Cleaning required—250 tape motion hours exceeded since
last cleaning
–Cleaning in process
Key
–Off
User invoked write/read diagnostic failed
Servo or mechanical error
––Internal firmware error
On
Blinking–slow (approximately once per second)
Blinking–medium (approximately twice per second)
Blinking–fast (approximately three times per second)
Indicates that the status of this LED does not depend on the specific tape drive condition. This
means that certain tape drive conditions may result in a combination of two or more of the
LED states in the chart.
For example, if you need to clean the tape drive while a DLT1 tape is loaded, both the Clean
LED and Media LED are on steadily. If an internal write/read diagnostic fails due to a
permanent write error, both the Fault LED and Clean LED blink slowly.
You can use the unload button to unload and eject data cartridges, and for the additional features
shown in the following table. Press and hold the eject button for the time specified in the following
table to activate one of these features. Release the button when the LEDs display the desired sequence.
C
AUTIONThe two features noted in the following table will over-write
any data on the data cartridge. Do not use these features if the
data cartridge in the tape drive contains critical data.
Table 3-4.Unload Button Functions
Description
Normal unload function0 to 6
Reserved–––6 to 9
Enter code load tape mode––9 to 12
Reserved–12 to 15
Reserved15 to 18
Revert back to normal mode–––18 to 21
Read/write diagnostic start.
CAUTION: This featur e overwrites any
data currently on the data cartridge.
Reserved.
CAUTION: This featur e overwrites any
data currently on the data cartridge.
This section describes what happens when you release the unload button (as indicated in the previous
section).
Table 3-5.Unload Button Actions
Function/ModeAction
Normal unload functionRelease the unload button to unload the data cartridge.
Enter code load tape modeRelease the unload button to accept a data cartridge that contains the
firmware image (code load). The LEDs then indicate code load mode.
Insert the data cartridge to begin the code update. The tape drive returns to
normal operation if you do not load a data cartridge within 15 seconds.
Read/write diagnostic startCAUTION: This feature overwrites any data currently on the data
cartridge. Before performing this action, confirm that the data cartridge in
the tape drive does not contain critical data.
Release the unload button to start an internal read/write diagnostic. You
must load a data cartridge to run the diagnostic. The tape drive writes and
reads 400 MB of data, then unloads the data cartridge. This process takes
approximately two minutes. The tape drive returns to normal operation if it
detects no errors. The appropriate LEDs illuminate if an error occurs.
Emergency resetRelease the unload button to force an internal reset. The tape drive
initializes as if you turned power off and then on (POST).
Revert back to normal modeRelease the unload button to return the tape drive to normal operation.
Press, hold, and release the unload button after six to nine seconds to start the diagnostic mode. This
displays the most recent event code. The unload button then becomes a scroll button for additional
event codes. Press and release the unload button for the next most recent event code. You can display
up to five total events using this method. Refer to Table 3-6 for details about the meaning of the
various patterns.
After you display the final available event code, the next button press causes all LEDs to flash
indicating that the next eight hex characters displayed are the detailed error code of the most recent
event. The first character is either a hex E (error) or a B (bug check). You can look up the remaining
seven characters in the error/bug check definition tables. When you display the last (eighth) detailed
error code digit, the next button press returns the tape drive to normal operation. All indications are a
four bit hex value.
During any time in this procedure, the tape drive returns to normal operation if you perform no scroll
action within 15 seconds.
Table 3-6.Diagnostic Mode Event Codes
LED Fault CodeFailure
0001SCSI Event
0010General Error
0011Software Bug Check
0100Permanent Write Error
0101Permanent Read Error
0110Servo Fault
0111Code Update was Completed
1000Illegal Format
1001Invalid Cartridge
1010Calibration Failure
1011Cleaning was Completed
1100Directory Read or Write Failed
1101Diagnostic Failed
1110POST Failure
1111Reserved
3-6September 200481-81275-01 REV A02
Chapter 4Performance Specifications
This chapter describes the performance specifications of the DLT VS160 tape drive, including timing
characteristics, data cartridge and media characteristics, and the reliability factors of the tape drive.
4.1Timing Characteristics
Table 4-1 lists the timing characteristics of the DLT VS160.
Table 4-1.Timing Characteristics of the Tape Drive
CHAPTER 4
SpecificationValue
Read/Write Tape Speed122 inches per second
Rewind Tape Speed160 inches per second
Linear Search Tape Speed122 inches per second
Average Rewind Time68 seconds
Maximum Rewind Time135 sec
Average Access Time (BOT)90 sec
Maximum Access Time (from BOT)180 sec
Load to BOT — previously recorded tape120 sec
Unload from BOT25 sec
81-81275-01 REV A02September 20044-1
Data Cartridge and Media CharacteristicsDLT VS160 Product Specification
4.2Data Cartridge and Media Characteristics
Table 4-2 lists the data cartridge and media characteristics.
Table 4-2.Data Cartridge and Media Char acteristics
CharacteristicSpecification
Media Width0.5 in.
Media Length1,847 ft
Media TypeMetal Particle
Data Cartridge Dimensions4.1 in. x 4.1 in. x 1.0 in.
Shelf Life30 years minimum @ 20 ºC and 40% relative
humidity (non-condensing)
Usage1,000,000 passes (typical office/computer
environment)
4.3Reliability Factors
Table 4-3 lists the reliability factors for the DLT VS160 tape drive.
Table 4-3.Reliability Factors for the Tape Drive
FactorHours / CyclesComments
Head Life30,000 tape motion hoursContinuous operation.
MTBF250,000 hoursQuantum Corporation does not warrant that
Load/Unload50,000 cyclesThis excludes media errors.
predicted MTBF is representative of any
particular unit installed for customer use.
Actual figures vary from unit to unit.
MTBF is measured at 100% duty cycle,
excluding head life.
4-2September 200481-81275-01 REV A02
Chapter 5Power Specifications
This chapter describes the power specifications of the DLT VS160 tape drive.
5.1Current Specifications
CHAPTER 5
NOTE: The +5 Volt bus is 5%; the +12 Volt bus is 10%.
±±
Table 5-1.Current Specifications of the Tape Drive
Mode5V
Power Up2.11.00.90.38.4918
Load Tape1.61.12.70.713.21624
Unload Tape1.61.02.60.814.11624
Write Tape1.81.61.30.514.62021
Read Tape1.71.41.30.513.31921
Rewind1.00.91.40.611.61719
Idle (tape)1.01.00.30.26.71314
Idle (no tape)1.01.00.10.15.61112
DC
Apk
5V
DC
Arms
12V
Apk
DC
12V
Arms
DC
DC Pwr
W (typ)
AC Pwr
W (typ)
AC Pwr
W (max)
81-81275-01 REV A02September 20045-1
External Power Supply and Chassis RequirementsDLT VS160 Product Specification
5.2External Power Supply and Chassis
Requirements
This section lists the common mode noise limitations between enclosures. The noise level can not
exceed the values listed in the following table. You must take all measurements with an active or
differential probe to reduce oscilloscope ground loops.
Table 5-2.Common Mode Noise Limitations
First EnclosureSecond EnclosureCommon Mode Noise Limit
Millivolt (mV)
Enclosure Chassis
(Host Server, Workstati on, or
DLT VS160 Tabletop Enclosure)
Enclosure Chassis
(Host Server, Workstati on, or
DLT VS160 Tabletop Enclosure)
DLT VS160 Tape Drive Chassis<1 mV
Peak to Peak
Power Supply Enclosure Ground<300 mV
Peak to Peak
5-2September 200481-81275-01 REV A02
CHAPTER 6
Chapter 6Environmental Specifications
This chapter describes the environmental specifications of the DLT VS160 tape drive.
The tape drive operates in environments that include general offices and workspaces that consist of:
•Conditioned and marginally-conditioned areas with central or remote air-conditioning
•Complete temperature and humidity controls
•Moderate control tolerances
•Systems capable of maintaining consistent comfort levels.
The tape drive does not conform to environments that consist of:
•Marginal heating or cooling apparatus
•No humidity conditioning
•Uncontrolled tolerances
•Systems inadequate to maintain constant comfort levels.
For long-term trouble-free operation, we strongly recommend that you operate and store your
DLT VS160 tape drive in a clean, smoke-free environment.
The following tables provide the operating, non-operating, storage, and shipping environmental
specifications for the DLT VS160 tape drive systems (both the internal and the tabletop
configurations).
81-81275-01 REV A02September 20046-1
Temperature and Humidity RangesDLT VS160 Product Specification
6.1Temperature and Humidity Ranges
Table 6-1 lists the operating temperature and humidity ranges of the tape drive.
Table 6-1.Operating — Temperature and Humidity Ranges
SpecificationValue
Temperature Range10 ºC to 40 ºC (50 ºF to 104 ºF)
Airflow3.0 CFM (min.)
Wet Bulb Temperature25 ºC (77 ºF)
Temperature Gradient11 ºC (19.8 ºF) per hour (across range)
Temperature Shock10 ºC (18 ºF) over two minutes
Relative Humidity20% to 80% non-condensing
Humidity Gradient10% per hour
Table 6-2 lists the storage and shipment temperature and humidity ranges of the tape drive.
Table 6-2.Storage and Shipme nt — Temperature and Humidity Ranges (Packed or Unpacked)
SpecificationValue
Dry Bulb Temperature
Wet Bulb Temperature46 ºC (114.8 ºF)
Temperature Gradient20 ºC (36 ºF) per hour with 5º margin (across the range)
Temperature Shock15 ºC (27 ºF) with 5º margin (over two minutes)
Relative Humidity10% to 95% non-condensing
Humidity Gradient10% per hour
6.2Altitude
The tape drive operates normally in pressures from -500 feet to 30,000 feet.
-40 ºC to 66 ºC (-40 ºF to 150.8 ºF)
6-2September 200481-81275-01 REV A02
CHAPTER 7
Chapter 7Shock and Vibration
Specifications
This chapter describes the shock and vibration specifications of the DLT VS160 tape drive. All testing
was done on both the internal and tabletop tape drives.
7.1Operating Shock and Vibration Specifications
7.1.1 Operating Shock Specifications
Table 7-1 lists the shock specifications for the tape drive while it is operating.
Table 7-1.Operating — Half Sine Wave Pulse Shock Specifications
Specification5 G Shock8 G Shock62 G Shock
Pulse Shape½ Sine Pulse½ Sine Pulse½ Sine Pulse
Peak Acceleration5 G8 G62 G
Duration11 millisecond (ms)10 ms2 ms
ApplicationX, Y, and Z axis, 10 pulses
per axis ( ), 60 total, 1
pulse every 6 seconds
±±±
X, Y, and Z axis, 1 pulse
per axis ( ), 6 total
X, Y, and Z axis, 1 pulse
per axis ( ), 6 total
81-81275-01 REV A02September 20047-1
Operating Shock and Vibration SpecificationsDLT VS160 Product Specification
7.1.2 Operating Vibration Specifications
Table 7-2, Table 7-3, Table 7-4, Table 7-5, and Table 7-6 list the vibration specifications for the tape
drive while it is operating.
Table 7-2.Random — Operating Vibration Specifications
FactorCriteriaComments
Frequency Range5 to 50 Hertz (Hz)
Acceleration Level0.25 G
ApplicationX, Y, and Z axisTop to bottom, 10 minutes per axis
Frequency Range5 to 50 to 5 Hz1 – Upward and Downward Sweep
Acceleration Level0.5 G, 0 to Peak
ApplicationX, Y, and Z axisSweep Rate; ½ octave per minute
Dwell on 4 lowest resonances per
axis for 15 minutes each
81-81275-01 REV A02September 20047-3
Non-operating Shock and Vibration SpecificationsDLT VS160 Product Specification
7.2Non-operating Shock and Vibration
Specifications
7.2.1 Non-operating Shock Specifications
Table 7-7 lists the shock specifications for the tape drive without its shipping package (non-operating).
Frequency Range5 to 500 to 5 Hz1 – Upward and Downward Sweep
Acceleration Level1.0 G
ApplicationX, Y, and Z axisSweep Rate; ½ octave per minute
, 0 to Peak
rms
Dwell on 4 lowest resonances per
axis for 15 minutes each
7-6September 200481-81275-01 REV A02
This chapter describes the emission and immunity specifications of the DLT VS160 tape drive.
8.1Emissions
The tape drive meets the following standards:
•FCC Part 15 Class B (ANSI C63.4: 1992, CISPR22: 1997)
•EMC Directive (89/336/EEC)
CHAPTER 8
Chapter 8Emission and Immunity
Specifications
•EN55022: 1998, Class B
•CISPR 22: 1997, Class B
•VCCI Class B
•CNS 13438
•AS/NZS 3548
•ICES – 0003
8.1.1 Radiated Emissions
The tape drive meets the radiated emissions limits per CISPR 22: 1997 listed in Table 8-1.Table 8-1.Radiated Emissions Limits
Frequency Range
Megahertz (MHz)
30 to 23030
230 to 100037
Quasi-peak limit decibel (dB)
microVolt per meter (µV/m) @ 10m
81-81275-01 REV A02September 20048-1
EmissionsDLT VS160 Product Specification
8.1.2 Conducted Emissions
The tape drive meets the conducted emissions limits per CISPR 22: 1997 listed in Table 8-2.Table 8-2.Conducted Emissions Limits
Limits
Frequency Range
(MHz)
Quasi–peakAverage
dB(µV)
0.15 to 0.50
0.50 to 55646
5 to 306050
a. The limit decreases with the logarithm of the frequency.
66 to 56
a
8.1.3 Harmonic Current Emissions
The tape drive meets this standard: EN 61000–3–3: 1995, Limitation of voltage fluctuations and
flicker in low-voltage supply systems for equipment with rated current up to and including 16A.
Table 8-3 lists the odd harmonic limits for Class A equipment. The harmonics of the input current do
not exceed the maximum permissible values given in this table multiplied by a factor of 1.5.
Table 8-3.Odd Harmonic Limits for Class A Equipment Limits
Harmonic Order
(n)
32.3
51.14
Maximum Permissible Harmonic Current
(A)
56 to 46
a
70.77
90.40
110.33
130.21
15 <= n <= 390.15 x (15/n)
8-2September 200481-81275-01 REV A02
DLT VS160 Product SpecificationChapter 8: Emission and Immunity Specifications
Table 8-4 lists the even harmonic limits for Class A equipment.
Table 8-4.Even Harmonic Limits for Class A Equipment
Harmonic Order
(n)
21.08
40.43
60.30
8 <= n <= 400.23 x (8/n)
8.1.4 Acoustic Noise Emissions
Table 8-5 lists the acoustic noise emission levels, both as noise power and sound pressure for the tape
drive. The table provides the preliminary declared values per ISO 9296 and 7779 / EN27779.
Table 8-5.Acoustic Noise Emissions, Nominal
The tape drive meets the magnetic field immunity limits per EN 61000–4–8: 1993 listed in Table 8-12.Table 8-12.Magnetic Field Immunity Limits
SpecificationPerformance Criteria
50 Hz, 10 Amps per meter (A/m)No errors allowed
8-6September 200481-81275-01 REV A02
DLT VS160 Product SpecificationChapter 8: Emission and Immunity Specifications
8.2.7 Voltage Dips, Short Interruptions, and Variations
Immunity
The tape drive meets the AC dips, interruptions, and variations immunity limits per
EN 61000–4–11: 1994 listed in Table 8-13.
Table 8-13.Voltage Dips, Short Interruptions, and Variations Immunity Limits
SpecificationPerformance Criteria
95% Vreduction 10 milliseconds per 0.5 periods
(Dips)
30% Vreduction 500 ms per 25 periods
(Dips)
95% Vreduction 5 sec per 250 periods
(Interruptions)
Soft recoverable errors allowed
Operator intervention allowed
Operator intervention allowed
8.3Voltage Fluctuations and Flicker Limits
The tape drive meets this standard: EN 61000–3–3: 1995, Limitation of voltage fluctuations and
flicker in low-voltage supply systems for equipment with rated current up to and including 16A.
Table 8-14 lists the EN 61000–3–3: 1995 Fluctuation and Flickers limits.
Table 8-14.Voltage Fluctuations and Flicker Limits
P
st
P
lt
dc (%)d
max
(%)
d(t)ms
<1.0<0.65<3.0<4.0<200
8.4Direct Current (DC) Magnetic Field Interference
The following is an alphabetical list of specialized words and technical terms with their definitions,
commonly used in the tape drive and tape media industry, and specifically included in this manual.
AAmps.
ACAlternating Current.
AC PwrAlternating Current Power.
B
C
AMAmplitude Modulation.
ApkAmps Peak.
ArmsAmps Root Mean Square.
ASMEAmerican Society of Mechanical Engineers.
ASTMAmerican Society for Testing and Materials.
BOTBeginning of Tape. The physical beginning of the media.
CFMCubic Feet per Minute.
CSACanadian Standards Association, also known as CSA
International.
81-81275-01 REV A02September 2004G-1
DDLT VS160 Product Specification
D
DbDecibel.
dBADecibels, A-weighted.
E
F
d
c
DCDirect Current.
DC PwrDirect Current Power.
d
max
d(t)msDelta time in milliseconds.
ESDElectrostatic discharge. A sudden discharge of electrostatic
FCCFederal Communications Commission.
ftFeet.
The relative steady-state voltage change.
Maximum relative voltage change.
energy that can damage delicate electronic circuitry.
G-2September 200481-81275-01 REV A02
DLT VS160 Product SpecificationGlossary
G
GGravitational Constant.
GBGigabyte.
• SI — 1,000,000,000 bytes or 109. This is the International System
of Units (SI) definition commonly used by telecommunications and
storage manufacturers.
3
• GiB — 1,073,741,824 bytes, equal to 1024
definition often used in computer science, computer programming,
and in the majority of computer operating systems documentation.
This measurement can be abbreviated as GiB (gibibyte) to avoid
ambiguity, as defined in IEC 60027-2.
Note: For the purpose of this document we are using SI.
GSGerman Safety
, or 230. This is the
H
I
K
HzHertz. A measure of frequency (cycles per second).
IEC
in.
kgKilogram.
kHzKilohertz.
kVKilovolt.
International Electrotechnical Commission, an international
standards organization for electronics and electrotechnical
L VDLow Voltage Differential. LVD is a physical interface with power
low enough to allow integration within the SCSI controller chip.
Ultra 160 SCSI uses a low-voltage differential interface.
LwA, BSound power A-weighted, Bells.
M
N
mMeter (or meters).
MBMegabyte. A unit of measure equal to 1 million bytes.
MHzMegahertz.
mmMillimeter.
msMillisecond.
MTBFMean Time Between Failure. The probable average number of
service hours between failures.
mVMillivolt.
nVariable number.
G-4September 200481-81275-01 REV A02
DLT VS160 Product SpecificationGlossary
P
PeripheralA device added to a system as a complement to the basic central
processing unit (CPU), such as a disk drive, tape drive, or printer.
R
S
P
lt
POSTPower-On Self-Test (POST). When power is applied to the tape
PSDPower Spectral Density.
P
st
RHRelative humidity.
rmsRoot mean square.
SCSISmall Computer System Interface. An American National
Flicker evaluated over a long period of time (a few hours).
drive, it performs a POST.
Flicker evaluated over a short period of time.
Standards Institute (ANSI) standard for the interface between a
computer and peripheral controllers.
secSecond.
U
ULUnderwriters Laboratory; a United States safety organization.
81-81275-01 REV A02September 2004G-5
VDLT VS160 Product Specification
V
VVolt.
W
V
DC
VreductionVoltage reduction.
WWatt (or watts).
Volt Direct Current.
G-6September 200481-81275-01 REV A02
4001 Discovery Dr., Ste. 1100
Boulder, CO 80303
720.406.5700
September 2004
81-81275-01
*81-81275-01 REV A02*
81-81275-01 REV A02
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