4 Port Dual Link DVI USB KVM
Switch with Audio
SV431DVIUAHR
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Instruction Manual
Table of Contents
Introduction ................................................................................... 1
Features ......................................................................................1
Package Contents .......................................................................1
System Requirements................................................................... 2
Console Side...............................................................................2
Computer Side.............................................................................2
Installation...................................................................................... 3
PC BIOS Notice ..........................................................................3
Computer Connection..................................................................4
Operation........................................................................................ 4
Front Panel ..................................................................................4
Auto Scan ...................................................................................5
Scan Time ..................................................................................5
Rack Mount Kit for SV431DVIUAHR (Optional)........................... 8
Specifications ................................................................................ 9
Troubleshooting............................................................................. 10
Technical Support ......................................................................... 12
Warranty Information .................................................................... 12
i
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Instruction Manual
Introduction
Thank you for purchasing a StarTech.com 4 Port Dual Link DVI USB KVM
Switch. Offering convenient sharing of up to four directly connected com-
puters as well as USB peripheral switching between computers, SV431D-
VIUAHR connects to a DVI capable display to create the ideal switching
solution for a broad range of multimedia environments, including SOHO
(Small Office Home Office), HTPC applications etc.
Features
• All metal chassis for long-term durability
• Compatible with all USB supported Operating Systems
• Designed for high-resolution applications: supports up to a resolution of
2560x1600
• Front panel push button computer selection
• Integrated USB 2.0 hub allows you to share up to three high-speed
USB devices between computers
• USB self-power operation
Package Contents
• 1 x SV431DVIUAHR
• 1 x User manual
• 1 x Rubber Foot Pad
• 1 x Power Adapter
1
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Instruction Manual
System Requirements
Console Side
• One DVI monitor
• One USB keyboard
• One USB mouse
• One 3.5mm microphone (optional)
• One 3.5mm audio output device (optional)
Computer Side
• One DVI cable per computer
• One USB A-B cable with Type-A and Type-B plug for USB devices
Please Note: In place of using individual cables, StarTech.com offers a 6
ft. 4-in-1 USB, DVI, Audio, and Microphone KVM Switch Cable (USBDVI-
4N1A6) that can fulfill the functions of both cables in one convenient unit.
2
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Instruction Manual
Installation
PC BIOS Notice
The following BIOS setup changes may be necessary for PC users.
1. In STANDARD CMOS, set HALT ON ERROR to ALL BUT KEYBOARD
2. In PNP AND PCI SETUP, set PNP OS INSTALLED to YES and set
USB IRQ to ENABLED.
Please Note: The SV431DVIUAHR provides USB keyboard and mouse
switching from one computer to the other. If you plan to share other pe-
ripherals, such as a CCD camera, printer or scanner, it is required to shut
down the computer driver before switching to another computer.
Console Connection
Before installation, ensure that all devices and computers to be connect-
ed to the SV431DVIUAHR are powered off.
1. Connect a DVI-capable monitor to the Console’s DVI port.
2. Plug a USB keyboard and a USB mouse to any two of the Console’s
USB ports as shown below.
USB Device
USB Device
USB Keyboard
USB Mouse
3
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Instruction Manual
Computer Connection
1. Use a male-to-male cable to connect from a computer’s DVI port to
SV431DVIUAHR’s DVI port of PC side, as shown below.
2. Use a USB A-B Cable to connect from the SV431DVIUAHR’s USB port
(B connector, square connector) to the USB port on the corresponding
computer (A connector, flat connector), as shown below.
Male-to-Male
for Video
One USB patch cable
for both keyboard
and mouse.
Operation
Front Panel
1. On-line LED & Selected LED
When the LED turns green, the connected computer is powered-on.
When a computer is selected, its corresponding red LED illuminates.
2. Pushbuttons
Each computer has a button associated with it on the front panel for
selection.
4
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Instruction Manual
Auto Scan
Auto Scan automatically scans through the connected computers one by
one in a fixed interval (see Scan Time below).
Please Note: The keyboard and mouse are inoperable during Auto Scan.
Scan Time
Scan time sets the interval at which connected computers will be
scanned. The Scan Time options are 3, 8, 15 and 30 seconds.
Please Note: Scan Time is automatically set to 3 seconds (default) when
the SV431DVIUAHR loses power.
To activate Auto Scan, hold down front panel push buttons “3” and “4”
simultaneously. The port LED flashes during Auto Scan. Auto Scan is
effective for powered-on computers only. To exit Auto Scan mode, simply
tap any one of the pushbuttons.
To change the Scan Time interval, press hold front panel buttons “1” and
“2” simultaneously. The SV431DVIUAHR will beep 1, 2, 3 or 4 times for
Scan Time of 3, 8, 15 or 30 seconds respectively.
5
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Instruction Manual
“FUNC” Button
To ensure optimal video signal strength corresponding to the length or
quality of the DVI cable being used, the user can press the “FUNC” button
in combination with the other pushbuttons.
Step 1.
Press the “FUNC” button three times. The “FUNC” LED will flash one time
per second.
Step 2.
Press “1” once or twice to adjust the equalization of the selected port
input video strength. One beep will sound to indicate normal operation or
two beeps to indicate enhanced mode.
or
Press pushbutton “3” once or twice to adjust the output current of
selected port. One beep will sound to indicate normal operation or two
beeps to indicate enhanced mode.
or
Press pushbutton “4” one, two, three or four times to adjust the output
emphasis of the selected port, with one beep (no pre-emphasis), two
beeps (low pre-emphasis), three beeps (medium pre-emphasis), or four
beeps (high pre-emphasis).
Step 3.
Once the desired settings are complete, press the “FUNC” button once to
exit the settings mode.
6
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Instruction Manual
To select the audio signal from any port of 4 connected computers, the
user can press “FUNC” button in combination with the other pushbuttons.
Step 1.
Press and hold the “FUNC” button. Either all 4 green LEDs will illumi-
nate or just one green LED. If all four LEDs illuminate, the audio port is
operating on the same channel as the selected computer. This is known
as “tracking mode.” If just one green LED (the selected audio port) is
illuminated, the audio port is not on the same channel as the selected
computer (referred to as “non-tracking mode.”
Step 2.
While the “FUNC” button is being held down, press the pushbutton that
corresponds with the audio port you wish to select.
or
While the “FUNC” button is being held down, press and hold “1” AND “2”
to enter tracking mode.
Step 3.
Once the desired setting changes have been made, release “FUNC” but-
ton to exit the settings mode.
7
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Instruction Manual
Rack Mount Kit for SV431DVIUAHR (Optional)
The figure below shows how to attach optional mounting brackets and
cable support (SV431RACK) to the SV431DVIUAHR for installation in a
standard 19-inch rack cabinet.
To the rack
cabinet
back post
To the rack
cabinet
back post
USB or monitor
cables to the switch
Two screws secure
the cable support
USB or monitor cables
to the computer
8
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Instruction Manual
Specifications
Specification
SV431DVIUAHR
No. of computers supported
Front Panel Push Buttons
Front Panel Func Buttons
Hot plug-and-play
4
4
1
Yes
Automatic Scan Interval
Cable Length (Max)
3, 8, 15, 30 seconds
4.6M(15ft) for USB
Computer ON-LINE LED
Computer selected LED
Monitor Type
4
4
DVI
Peripheral Connectors per Host
USB Type B x 1
DVI female x 1
Monitor
Audio
3.5mm Microphone x 1
3.5mm Speaker x 1
Console Peripheral Connectors
USB Type A x 4
DVI female x 1
Monitor
Audio
3.5mm Microphone x 1
3.5mm Speaker x 1
Weight (g)
(oz.)
1750
61.72
H x W x D (mm)
44 x 220 x 130
1.7 x 8.7 x 5.1
Compact
(in.)
size
9
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Instruction Manual
Troubleshooting
Ensure that all cables are properly connected. Label the cable for each
computer to avoid confusion when connected to the SV431DVIUAHR.
Symptom
Causes
Solution
The keyboard or mouse In Auto Scan, keyboard Press any front button
does not work
and mouse are
inoperable.
to select a computer,
then use the keyboard
and mouse.
Too many keyboards or
mouse drivers installed. Remove ALL
unnecessary keyboard
and mouse drivers.
A newly installed USB
device does not work.
Improper device driver. Re-install device driver.
Device consumes too
much power.
The device should be
self-powered. Add a
power adapter to the
device.
Device consumes
too much power
instantaneously.
If the device does
not provide a power
jack, add a power
adapter with DC5V
of less than 1A to the
SV431DVIUAHR.
The device was not
initialized properly.
When SV431DVIUAHR
works under self-power,
(no added power
supply) it supports max
of 100mA as per USB
spec.
Ensure that the USB
cable is well connected.
Remove all power
sources from the
SV431DVIUAHR by
unplugging all USB A-B
cables and the power
adapter, then restart.
Select the computer
by pushbutton, restart
the computer then try
again.
10
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Instruction Manual
Symptom
Causes
Solution
Computer hangs
up while switching
computers.
Device initialization
takes too much time.
Wait at least 5
seconds before
computer switching to
ensure proper USB
communication.
Turn off the device
driver (not keyboard
or mouse) before
computer switching.
Auto Scan does
not switch PCs
automatically and
the SV431DVIUAHR
beeps.
All PCs are off or only
one PC is turned on.
Scan mode works for
computers only if they
are powered on.
Turn computers on.
DVI Dual Link doesn’t
work.
Either the computer
or monitor does not
support the DVI Dual
Link mode.
Ensure that the
computer or the
monitor being used
support the DVI Dual
Link mode.
The resolution is poor.
Improper
To adjust the optimal
SV431DVIUAHR video video signal strength
settings.
corresponding to the
length or quality of the
DVI cable, the user can
press “FUNC” button
combing with the other
pushbuttons. Please
see more details on
pages 6 and 7.
11
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Instruction Manual
Technical Support
StarTech.com’s lifetime technical support is an integral part of our commit-
ment to provide industry-leading solutions. If you ever need help with your
selection of online tools, documentation, and downloads.
Warranty Information
This product is backed by a three year warranty. In addition, StarTech.
com warrants its products against defects in materials and workman-
ship for the periods noted, following the initial date of purchase. During
this period, the products may be returned for repair, or replacement with
equivalent products at our discretion. The warranty covers parts and labor
costs only. StarTech.com does not warrant its products from defects or
damages arising from misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA
LLP (or their officers, directors, employees or agents) for any damages
(whether direct or indirect, special, punitive, incidental, consequential, or
otherwise), loss of profits, loss of business, or any pecuniary loss, arising
out of or related to the use of the product exceed the actual price paid
for the product. Some states do not allow the exclusion or limitation of
incidental or consequential damages. If such laws apply, the limitations or
exclusions contained in this statement may not apply to you.
12
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StarTech.com has been making “hard-to-find easy” since 1985,
providing high quality solutions to a diverse IT and A/V customer
base that spans many channels, including government, education
and industrial facilities to name just a few. We offer an unmatched
selection of computer parts, cables, A/V products, KVM and Serv-
er Management solutions, serving a worldwide market through our
locations in the United States, Canada, the United Kingdom and
Taiwan.
our products and to access exclusive interactive tools such as the
Cable Finder, Parts Finder and the KVM Reference Guide.
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