Asus CRW-5224A-U Network Card User Manual

CRW-5224A-U
External CD-RW
52x/24x/52x CD-RW Drive
User’s Manual
1
Copyrights/Disclaimer
Copyright © 2002 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form or by any means, except documentation kept by the purchaser for
backup purposes, without the express written permission of ASUSTeK COMPUTER INC.
(“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE
OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR
ERROR IN THIS MANUAL OR PRODUCT.
Product warranty or service will not be extended if: (1) the product is repaired, modified or
altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2)
the serial number of the product is defaced or missing.
The product name and revision number are both printed on the product itself. Manual
revisions are released for each product design represented by the digit before and after the
period of the manual revision number. Manual updates are represented by the third digit in
the manual revision number.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED
FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME
WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS.
ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS
AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered
trademarks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.
Product Name:
Manual Version:
Release Date:
2
ASUS External CD-RW Drive (CRW-5224A-U)
First Edition V1 E1134
December 2002
ASUS CRW-5224A-U User’s Manual
Contents
Copyrights/Disclaimer ....................................................... 2
FCC/CDC Statements ........................................................ 4
ASUS Contact Information ................................................ 5
Safety Information ............................................................. 6
Installation Notices ....................................................... 6
Using the Device .......................................................... 7
Package Contents .............................................................. 8
Welcome! ............................................................................ 9
Product Introduction ......................................................... 9
Features ....................................................................... 9
Front Panel ................................................................ 12
Rear Panel ................................................................. 13
Installation ........................................................................ 14
System Requirements ............................................... 14
Setting the Jumper Terminals .................................... 15
Installing the CD-RW Drive ........................................ 16
Connecting the Drive Cables ..................................... 18
Installing CRW-5224A-U driver................................... 18
Checking the drive in the System Properties............. 20
Properly unplugging CRW-5224A-U device ............. 21
CD-RW Drive Basics ........................................................ 22
Placing a Disc into the Drive ...................................... 22
Ejecting a Disc from the Drive ................................... 23
Using the Emergency Eject Pinhole .......................... 24
Using Compact Discs ...................................................... 25
Cleaning a Disc .......................................................... 25
Handling a Disc .......................................................... 25
Technical Information ...................................................... 26
Environmental Specifications ..................................... 26
Electrical and Audio Specifications ............................ 26
ASUS CRW-5224A-U User’s Manual
3
FCC/CDC Statements
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following
two conditions:
•
•
This device may not cause harmful interference, and
This device must accept any interference received including interference that
may cause undesired operation.
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 manufacturer’s
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 to 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.
WARNING! The use of shielded cables for connection of the
monitor to the graphics card is required to assure compliance with
FCC regulations. Changes or modifications to this unit not
expressly approved by the party responsible for compliance could
void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the
Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
4
ASUS CRW-5224A-U User’s Manual
ASUS Contact Information
ASUSTeK COMPUTER INC. (Asia-Pacific)
Address:
General Tel:
General Fax:
General Email:
150 Li-Te Road, Peitou, Taipei, Taiwan 112
+886-2-2894-3447
+886-2-2894-3449
info@asus.com.tw
Technical Support
MB/Optical Drives (Tel):+886-2-2890-7121 (English)
Notebook (Tel):
+886-2-2890-7122 (English)
Desktop/Server (Tel): +886-2-2890-7123 (English)
Support Fax:
+886-2-2890-7698
Support Email:
tsd@asus.com.tw
Web Site:
www.asus.com
Newsgroup:
cscnews.asus.com.tw
ASUS COMPUTER INTERNATIONAL (America)
Address:
General Fax:
General Email:
6737 Mowry Avenue, Mowry Business Center,
Building 2, Newark, CA 94560, USA
+1-510-608-4555
tmd1@asus.com
Technical Support
Support Fax:
General Support:
Notebook Support:
Web Site:
Support Email:
+1-510-608-4555
+1-502-933-8713
+1-877-918-ASUS (2787)
www.asus.com
tsd@asus.com
ASUS COMPUTER GmbH (Germany and Austria)
Address:
General Fax:
General Email:
Harkortstr. 25, 40880 Ratingen, BRD, Germany
+49-2102-442066
sales@asuscom.de (for marketing requests only)
Technical Support
Support Hotline:
Notebook (Tel):
Support Fax:
Support (Email):
Web Site:
MB/Optical Drives: +49-2102-9599-0
+49-2102-9599-10
+49-2102-9599-11
www.asuscom.de/de/support (for online support)
www.asuscom.de
ASUS CRW-5224A-U User’s Manual
5
Safety Information
Observe the following precautions before installing and using the ASUS
External CD-RW (CRW-5224A-U) Drive!
Installation Notices
Do not place this device in an
unstable position, or in one that
vibrates.
Do not place this device in areas
where there is direct sunlight,
high humidity, or damp condition.
Do not use or place this device
near magnetic fields, televisions,
or radios, where there is
interference that may affect the
performance of the drive.
Do not attempt to disassemble or
repair the drive. Opening the drive
may result to exposure to laser
radiation.
6
ASUS CRW-5224A-U User’s Manual
Safety Information
Using the Device
•
Use of any controls, adjustments, or procedures other than those
specified in this manual may result to hazardous radiation exposure.
•
Do not attempt to disassemble the drive.
•
Do not move the device from a cold to a warm or hot environment.
Drastic change of temperature is harmful to the device.
•
Before moving or uninstalling the drive, remove disc from it, if any.
•
Prevent liquids or any metal to get into the device. If this situation
occurs, contact your retailer for help.
•
Do not use any evaporating solvents to clean the device. If you
accidentally sprayed any solvent on the device, use a clean cloth to
wipe it. You may also use a neutral cleaner to dilute the solvent to
easily wipe it from the device.
•
Try not to interrupt the supply of power while the device is in reading or
writing mode.
•
Do not place damaged or warped discs inside the device. A warped
disc may break while in use and damage the device.
•
Do not place discs into the device immediately if they came from a cold
environment, specially during cold seasons. Wait until the discs have
reached room temperature.
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.
WARNING/DANGER: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
IMPORTANT: Information that you MUST follow to complete a
task.
NOTE: Tips and additional information to aid in completing a task.
ASUS CRW-5224A-U User’s Manual
7
Package Contents
Upon opening your ASUS External CD-RW (CRW-5224A-U) drive
package, check if all the following items are present and in good condition.
If any of the items is damaged or missing, contact your retailer
immediately.
•
ASUS External CD-RW drive (CRW-5224A-U)
•
ASUS External CD-RW drive stand
•
USB 2.0 cable
•
Power cable and adapter
•
Emergency eject pin and instruction
•
ASUS High-Speed CD-R blank disc
•
ASUS Ultra-Speed CD-RW blank disc
•
User’s Manual (English and Traditional Chinese)
•
Multi-language quick installation poster
•
Bundled software CD
- CD recording software
- Win98SE USB 2.0 driver
The above items are available in retail boxes only.
8
ASUS CRW-5224A-U User’s Manual
Welcome!
Thank you for buying the ASUS External (CRW-5224A-U) Drive!
To ensure proper installation and use of this device, read the instructions
and other important information contained in this manual.
Product Introduction
Specifications
The CRW-5224A-U has the following specifications.
•
•
•
•
•
•
•
•
Speeds
- CD-R Write Speed
52x, 48x, 40x, 32x, 24x,16x,12x, 8x, 4x
- CD-RW Write Speed 24x, 16x, 12x, 10x, 8x, 4x, 2x
- Read Speed
52x max (CAV)~7800 KB/Sec
- DAE Speed
52x max (CAV)~7800 KB/Sec
- Random Access Time 100 ms
Interface
USB 2.0
Technology support FlextraSpeedTM Technology
FlextraLinkTM Technology
Double Dynamic Suspension System II (DDSS II)
CAV Recording Technology
Buffer Memory Size 2 MB
Application discs
12cm or 8 cm diameter, 1.2mm thick
CD-Audio, CD-ROM, CD-ROM/XA, CD-I,
Mixed Mode CD-ROM, Photo CD, CD-Extra,
Video CD, CD-Text, DVCD, CD-G, Karaoke
CD, I-trax, Bootable CD
Writing Mode
Track-at-Once, Disc-at-Once,
Session-at-Once, Multi-Session, Packet Write,
DAO-RAW Mode
Dimensions
155.6 (w) x 226 (d) x 50 (h) mm
Mass
1398 g (3.08 lbs)
Refer to the section “Technical Information” on page 26 for
detailed specifications.
ASUS CRW-5224A-U User’s Manual
9
Features
The ASUS CRW-5224A-U is an External CD-RW drive with 52x Write, 24x
ReWrite and 52x Read capabilities. The drive complies with the Universal
Serial Bus 2.0 (USB 2.0) specifications and comes equipped with the
latest innovative technologies in CD recording.
ASUS External CD-RW drives are accentuated by the latest innovations in
CD-recording technology, namely: FlextraSpeedTM, FlextraLinkTM, DDSS II
(Double Dynamic Suspension System II) and the Constant Angular
Velocity (CAV) recording method.
The following sub-sections describe these technologies in detail.
FlextraSpeed™ Technology
The ASUS FlextraSpeed™ technology provides the optimum solution to
ensure quality recording when using discs that require flexible speeds. The
CRW-5224A-U drive employs this technology that allows automatic
recording speed adjustment based on the recording media.
In addition to the fact that there are low and high quality recording media,
various other factors such as dye layer, temperature, humidity, dust,
fingerprints, etc., affect the recording characteristics of CD-R and CD-RW
discs. Due to these factors, some discs may not be able to stand the highspeed capabilities of the latest CD-RW drives. The FlextraSpeed™
technology solves this problem by automatic assessment of the disc
quality and recording capability. The recording speed is based on these
factors. If you use a high quality recording disc, you can maximize the
recording capability of the drive and get the best quality output. If you use
a low quality disc, the drive speed adjusts to the level that is most
appropriate for the disc, still optimizing the disc recording capability.
The FlextraSpeed™ technology also helps maintain the CD-RW drive
because of the controlled motor rotation speeds and reduced noise
caused by spindle air, thus prolonging the drive motor’s life and ensuring
high-quality recording.
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ASUS CRW-5224A-U User’s Manual
FlextraLink™ Technology
The ASUS FlextraLink™ technology provides a seamless combination of
flexibility and ultra-reliable recording quality.
FlextraLink™ incorporates a flexible strategy that prevents buffer underrun
problems caused by an empty data buffer. This CD-RW drive technology
allows continuous monitoring of the data buffer status during the write
process. Once the available data drops to approximately 1% of the total
buffer capacity, the drive stops recording and marks the last write position.
When new data is received from the host, it is loaded to the data buffer,
and the laser is repositioned to link the new data with the data already
written. FlextraLink™ uses minimal system resources so that your PC
remains fully operational throughout the writing process, and available for
other applications.
The diagram below shows the advantage of the FlextraLink™ recording
technology.
FlextraLink™ Technology Solution
Data
Data
Data transfer
slows down
Conventional
Recording
Buffer
Memory
Data transfer slower
than write process
Buffer
Memory
Empty
Write Data
Write process
continues
Data
Write Data
Bad disc results
Buffer
Memory
Data
Data
Data transfer
slows down
Data transfer continues
and fills buffer with
sufficient data for writing
Buffer
Memory
Recording with
FlextraLink™
Technology
Buffer
Memory
Write Data
Write Data
Write process stops;
waits until there is
enough data for writing
ASUS CRW-5224A-U User’s Manual
Write process continues
until writing is complete
11
Double Dynamic Suspension System (DDSS II)
The DDSS II is an enhanced follow-up to the DDSS anti-vibration system
developed by ASUS. The DDSS CD-ROM technology is designed to
reduce the vibration generated from spindle rotation of over 8900 rpm of
40X CD-ROM drives. The DDSS II improves this feature by handling up to
over 10,000 rpm of the new 50X drives. In addition, the DDSS II stabilizes
the pick-up head of the drive in both horizontal and vertical directions,
making tracking and focusing even more precise.
Like the DDSS, the DDSS II vibration absoption structure contains a
“dynamic mass” that can absorb the vibration caused by high revolution of
spindle motor. However, the DDSS II moves the dynamic mass to be
suspended to the chassis, thus providing more stability and accuracy
when accessing data from the disc.
The following diagram illustrates the DDSS/DDSS II design structure.
DDSS / DDSS II Design Structure
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ASUS CRW-5224A-U User’s Manual
Constant Angular Velocity (CAV) Recording Technology
The CRW-5224A-U drive employs the Constant Angular Velocity (CAV)
recording method. With CAV recording, the drive spindle motor rotates the
disc at the same speed regardless of the radial position of the pickup
head. This means that there is a higher transfer rate when writing data to
the outer tracks of the disc than to the inner tracks, as the head traverses
a longer linear path on the outer than the inner part of the disc.
Although the transfer rates vary, and may not be at maximum, depending
on the part of the disc being written to, the CAV method allows faster
recording speed because the rotation speed does not have to change
when the head writes data to different areas of the disc. This is primarily
advantageous for computer applications.
CAV Recording Method
Speed
52x
48x
40x
32x
24x
16x
8x
0x
ASUS CRW-5224A-U User’s Manual
Time
13
Front Panel
¤
Recordable
Rewritable
1
2
3
High Speed
52X24X52X
R
W
4 5
6
7
8
9
1. Headphone Jack
This jack allows you to connect a headphone with a stereo mini-plug. If
you enable digital CD audio properties for this device, the audio out
function of this jack is disabled.
2. Headphone Volume Dial
To adjust volume of headphone connected, turn dial to the left to
decrease volume; turn to the right to increase volume.
3. Disc Tray
This tray holds the disc.
4. Power Indicator
This LED lights green when drive power is ON and turns off when drive
power supply is OFF.
5. WRITE Indicator (Red LED)
This LED flashes while data is being written on the disc.
6. READ Indicator (Green LED)
This LED is ON when a disc is present in the drive tray. The LED
flashes while data is being read from the disc.
7. Emergency Eject Pinhole
To manually eject the tray and the disc. See page 24, for details on
using the emergency eject pinhole.
8. PLAY/SKIP Button
This button has two functions. If the drive is idle, pressing this button
will start playing a loaded audio disc from the first track. While in the
PLAY mode, pressing this button skips to the next track on the disc.
9. STOP/EJECT Button
This button has two functions. Pressing this button at any time ejects
the disc tray. While in PLAY mode, pressing this button stops playing
the disc loaded in the drive.
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ASUS CRW-5224A-U User’s Manual
Rear Panel
10
11
12
10. 12V Power jack
This jack is for the AC adaptor power cable.
11. USB connector
A standard Universal Serial Bus (USB 2.0) plug and play interface.
12. Power switch
Turns the power supply ON or OFF. Switching to
and switching to “O“ side means OFF.
ASUS CRW-5224A-U User’s Manual
“|“ icon means ON
15
Installation
System Requirements
Before installing and using the External CD-RW drive, make sure that your
computer system meets the following requirements.
•
IBM-compatible Pentium II - 333 MHz or higher PC
•
Windows 98SE/ME/2000/XP operating system
•
At least 64MB RAM (128MB recommended)
Do not use damaged or warped disc in the CD-RW drive.
The disc may break apart during use and cause potential
body injury or damage to your drive.
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ASUS CRW-5224A-U User’s Manual
Connecting the Drive Cables
1. Connect the USB cord - B series plug to the drive USB 2.0 connector.
2. Connect the USB cord - A series plug to the USB 2.0 connector on
your PC.
3. Connect the adapter cable to DC IN power connector.
4. Connect the adapter power cord to the AC adapter.
5. Connect the adapter power cord to a power source.
All the cable plugs are slotted so that they fit in only one
orientation. If a plug does not fit in completely, try reversing
it. DO NOT use too much force when fitting the cable plugs.
PC
CD-RW drive
USB A series plug
2
Power outlet
Power switch
5
USB 2.0 connector
Adapter
USB B series plug
1
DC IN
power connector
Adapter power
4
3
cord and plug
Adapter power
cable and plug
Power plug types may vary in different countries or regions
around the world.
ASUS CRW-5224A-U User’s Manual
17
For Windows 98SETM users:
Installing the CRW-5224A-U driver
Windows 98 Second Edition users need to install the CRW-5224A-U
device driver for the PC to recognize the new hardware installed. A device
driver is the software program that makes a device work on an operating
system (OS).
Follow these steps to install the CRW-5224A-U driver:
1. Make sure all cable connections to the drive and the PC are properly
connected.
2. Boot PC.
3. Insert the bundled software CD in the CD drive of your PC.
4. Turn on the External CRW-5224A-U drive.
5. After boot-up, the OS will detect a
new hardware was found. Follow
the wizard to copy the driver files
to your system.
Click Next.
6. Windows 98SEtm can automatically
search for the best driver for the
device, select (Recommended)
option.
Click Next.
7. Specify the location of the driver
.INF file , click on Browse.
18
ASUS CRW-5224A-U User’s Manual
8. Locate the file folder name
“ASUS_RW_USB” in the CD
ROM drive.
Click OK.
9. The specific location of the drive
will appear on the combo list box.
Click Next.
10. After searching, the location of
the driver and driver .INF file
name is displayed.
Click Next.
11. A message box with the
installation progress bar is
displayed. If cancelled, the
installation process has to be
repeated from the start.
12. The CRW-5224A-U driver is
successfully installed.
Click Finish to start using your
external drive!
ASUS CRW-5224A-U User’s Manual
19
Checking the drive in the System Properties
To make sure the CRW-5224A-U external drive is recognized by the
computer, follow these steps to check the computer system properties.
1.
2.
3.
4.
Right-click My Computer icon on your desktop.
On the pop-up menu, click Properties.
Click the Device Manager tab on the system properties dialogue box.
Click on CD-ROM from the list.
ASUS CRW-5224A
drive name should
appear here.
Screen display may vary depending on the operating
system (OS) version.
20
ASUS CRW-5224A-U User’s Manual
Properly unplugging CRW-5224A-U device
The CRW-5224A-U when installed needs to be properly unplugged or
disconnected from the computer to avoid computer to crash or possible
data loss.
Follow these steps to safely unplug your CRW-5224A-U drive from the PC.
1. Locate the Unplug or Eject
Hardware icon found in the
taskbar.
Double-click on the icon.
2. Select the name of the hardware
device (“ASUS CRW-5224A”),
to unplug.
Click Stop.
3. Confirm the device to be stopped.
Again, select the name of the
device you want to unplug.
Click OK.
4. The device can now be safely
unplugged from the system.
Click OK.
5. The screen display will go back to the Unplug or Eject Hardware
dialogue box. Click on Close.
ASUS CRW-5224A-U User’s Manual
21
CD-RW Drive Basics
Placing a Disc into the Drive
1. Press the eject button on the front of the drive to eject the tray.
HORIZONTAL
VERTICAL
2. When the drive tray ejects out of the drive, place the disc on the tray
with the label side facing out.
HORIZONTAL
VERTICAL
22
ASUS CRW-5224A-U User’s Manual
If you are using a 12-cm disc, place it on the tray making
sure that it fits the outer circular border. This border helps
hold the disc in place. If you are using an 8-cm disc, place
it on the inner circular border on the tray. However, 8-cm
discs can only be used in horizontal drive mounting
orientation.
HORIZONTAL
3. Press the drive eject button or lightly push the center of the drive tray
to replace the tray inside the drive.
HORIZONTAL
VERTICAL
Ejecting a Disc from the Drive
1. Press the eject button on the front of the drive to eject the tray.
2. Carefully remove the disc from the tray.
3. Press the drive eject button or lightly push the center of the drive tray
to load the tray back into the drive.
ASUS CRW-5224A-U User’s Manual
23
Using the Emergency Eject Pinhole
The emergency eject pinhole on the front of the drive allows you to
manually eject the drive tray and remove a disc from the drive in the
following instances:
•
•
supply of power to the computer is cut due to electrical power outage
the drive malfunctions
Use the manual method only as a last resort when the
eject button does not work. Make sure that you have
turned off your CD-RW drive before ejecting the drive tray.
Follow these steps to eject the drive tray using the emergency pinhole.
1. Insert the eject pin that came with the drive package. You may also use
a paper clip or any pointed rod small enough to fit into the emergency
pinhole.
HORIZONTAL
VERTICAL
2. Carefully pull the tray out and remove the disc.
HORIZONTAL
VERTICAL
Do not force the tray open; wait until the eject pin has
dislodged the tray to avoid breaking the tray panel.
24
ASUS CRW-5224A-U User’s Manual
Using Compact Discs
Take note of the instructions in this section when using compact discs.
These instructions will help you avoid damaging the discs and your
CD-RW drive.
Cleaning a Disc
Spray the disc with compressed air for about five seconds to get rid of the
dust on a disc.
Handling a Disc
Hold a disc by the edges. Do not touch the disc surface.
ASUS CRW-5224A-U User’s Manual
25
Technical Information
Environmental Specifications
Temperature
Operation:
Storage:
5°C < to < 45°C
- 20°C to < 60°C
Humidity
Operation:
Storage:
20% to 80% non-condensing
15% to 85% non-condensing
Vibration
Operation:
Storage:
0.5G peak at 5 ~ 500 Hz
2.0G peak at 10 ~ 500 Hz
Impact
Non-operation:
1 oct/min – no damage
Less than 50G –
(at 11ms/half sine wave,
3 shock/each side)
1 oct/min – no damage
91 cm high –
(1 corner, 3 edges, 6 surfaces)
Packaged:
Acoustic
Access mode:
41.5 dB TYP
Read mode:
44.5 dB TYP
(Microphone located 50cm in front of the drive, 120 cm above the drive at 30o
angle.)
Reliability
MTBF:
ODC (Read):
ODC (Write):
100,000 power on hours
20% of power on time
1% of power on time
Mean Time To Repair (MTTR)
30 minutes
Electrical and Audio Specifications
26
Power Source
Input Linear Voltage
Input Linear Frequency
Input Linear Current
100/240 V AC
50/60 Hz
1.2 A
I/O Terminal
USB terminal
USB B type (High Speed)
Audio
No. of channels
Sampling frequency
Quantization
Distortion
S/N ratio
Output: Headphone
2 (stereo)
44.1 kHz
16 bits
0.2% max. (at 1 kHz)
70 dB
0.7 V rms (typical)
ASUS CRW-5224A-U User’s Manual