StarTech.com SV431DVIUAGB User manual

Manual Revision: 07/11/2018
Forthemostup-to-dateinformation,pleasevisit:www.startech.com
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FR: Guide de l'utilisateur - fr.startech.com
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IT: Guida per l'uso - it.startech.com
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SV431DVIUA
SV431DVIUAGB
4 Port DVI USB KVM Switch with Audio
and USB 2.0 Hub
*actualproduct mayvary fromphotos

Instruction Manual
FCC Compliance Statement
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 o 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 dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and do not
represent an endorsement of a product or service by StarTech.com, or an endorsement of the
product(s) to which this manual applies by the third-party company in question. Regardless
of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby
acknowledges that all trademarks, registered trademarks, service marks, and other protected
names and/or symbols contained in this manual and related documents are the property of
their respective holders.

Instruction Manual
i
Table of Contents
Introduction ...........................................................................................1
Features ........................................................................................................................................................ 1
Before You Begin ....................................................................................................................................... 1
Package Contents ..................................................................................................................................... 1
Installation ..............................................................................................2
Console Connections............................................................................................................................... 2
Connecting Slave Computers............................................................................................................... 3
Operation ................................................................................................4
Rack Mount Kit (Optional) ....................................................................6
Troubleshooting.....................................................................................7
Specications..........................................................................................8
Technical Support ..................................................................................9
Warranty Information............................................................................9

Instruction Manual
1
Introduction
Thank you for purchasing a StarTech.com 4 Port DVI USB KVM Switch with Audio. This
product oers a cost-eective way to operate up to four computers or servers from a
single keyboard, monitor and mouse peripheral set, while saving valuable deskspace.
Featuring USB peripheral sharing, audio switching and astounding video resolutions of
up to 1920 x 1200 (@60/70Hz), this is the perfect combination of computer control and
multimedia quality.
Features
• Convenient audio selection and video signal adjustment
• Allows up to four computers to share up to 4 dierent USB peripherals
• Front panel push buttons provide easy computer selection
• Requires no drivers for keyboard or mouse operation
• No software requirements
Before You Begin
System Requirements - Console Side
• 1 x DVI monitor
• 1 x USB keyboard
• 1 x USB Mouse
System Requirements - Computer Side
• 1 x DVI-I (Single Link) Cable
• 1 x USB A-B Cable
Package Contents
• 1 x Instruction Manual
• 1 x DVI USB KVM Switch
• 1 x Rubber Foot Pad Set
• 1 x Power Adapter

Instruction Manual
2
Installation
PC BIOS Notice: The following BIOS setup changes are necessary for PC users but are not
required for Mac 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 the USB
IRQ to ENABLED.
Console Connections
Before installation, please ensure that all devices and computers to be connected to
the KVM Switch have been turned o.
1. Connect the monitor that will be used to the Console DVI port on the rear panel
of SV431DVIUA
2. Connect a USB keyboard and a USB mouse to any two of the Console USB ports as
shown below:
USB Device
USB Device
USB Mouse
USB Keyboard

Instruction Manual
3
Connecting Slave Computers
There are two options for connecting slave computers to SV431DVIUA:
1. a) Using a Male to Male DVI-D (Single Link) cable, connect the computer’s DVI port
to one of the four available PC ports (PC 1, PC 2, PC 3, PC 4) as shown below.
b) Using a USB A-B Cable, connect the USB port that corresponds with the PC port
used in step 1, to the USB port on the corresponding computer, as shown below.
2. Use a 4-in-1 USB, DVI, Audio and Microphone KVM Switch cable, such as
USBDVI4N1A15 to connect each computer to the desired port. For more
information, please see Accessory Products from StarTech.com.
Repeat steps 1a and 1b or and 2 to connect the remaining computers to the available
ports. Devices and computers that are connected to SV431DVIUA can now be
turned on.
Male to Male DVI
One USB patch cable
for both keyboard and
mouse

Instruction Manual
4
Operation
Please note: SV431DVIUA can be used with a VGA connection to controlled (slave)
computers, however an adapter must be used to make the connection (please see
Accessory Products from StarTech.com - DVIVGAMF).
Also note: Analog and digital connections cannot be used concurrently. To
successfully connect SV431DVIUA to the slave computers, all connections must be
either digital or analog.
1. Online/Selected LEDs
When the LED turns green, the computer connected to the corresponding port 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. For
example, to switch to computer 2, press the 2 button.
Auto Scan
Auto Scan automatically scans through computers one at a time, in a xed interval.
Please note: keyboard and mouse are not operable during Auto Scan. To activate
Auto Scan, press down front panel push buttons 3 and 4 simultaneously. The port LED
ashes during Auto Scan. Auto Scan is eective for powered-on computers only. To exit
the Auto Scan mode, just tap any one of the front panel pushbuttons.
Scan Time
This selection sets the scan interval for the Auto Scan feature. The Scan Time options
are 3, 8, 15 and 30 seconds. Please note: Scan Time is automatically set to a default of 3
seconds, in the event that SV431DVIUA loses power. To change the Scan Time interval,
press both front panel buttons 1 and 2 simultaneously. SV431DVIUA will beep 1, 2, 3 or
4 times for scan time of 3, 8, 15 or 30 seconds respectively.
1
2

Instruction Manual
5
“FUNC” Button
To adjust the optimal video signal strength corresponding to the length or quality of
DVI cable being used, use the FUNC button in combination with the other front
panel pushbuttons.
1. Press the FUNC button three times. The POWER LED will ash once per second.
2. To adjust equalization of the selected port input video strength, press button 1 once
or twice; SV431DVIUA will beep once (normal) or twice (enhanced) respectively.
To adjust the output current of a selected port, press button 3 once or twice ;
SV431DVIUA will beep once (normal) or twice (enhanced) respectively.
To adjust the output emphasis of the selected port, press button 4 once, twice,
three or four times; SV431DVIUA will beep once (no pre-emphasis), twice (low
preemphasis), three times (medium pre-emphasis), or four times (high pre-
emphasis), respectively.
3. Once you have entered the desired settings, press the FUNC button once to save
and exit function settings.
To select the audio signal from any port of 4 connected computers, press the FUNC
button in combination with the other pushbuttons.
1. Press and hold the FUNC button.
If all four green LEDs illuminate: The audio port and the selected COM port are the
same - this is referred to as “tracking mode”.
If just one green LED illuminates (indicating the selected audio port): The audio port
is dierent from the selected computer port - this is referred to as
“non-tracking mode”.
2. While still pressing the FUNC button:
Press the button that corresponds numerically with the desired audio port. e.g if
you wish to select the signal from port 3, press the 3 button while still holding the
“FUNC” button.
or
Press buttons 1 and 2 to enter tracking mode.
3. Once you have entered the desired settings, press the FUNC button once to save
and exit function settings

Instruction Manual
6
Rack Mount Kit (Optional)
The gure below shows how to attach optional mounting brackets and cable support
(SV431RACK) to SV431DVIUA for use with a standard 19” rack cabinet:
To Rack Cabinet Back Post
USB to monitor cables to
the switch
To Rack Cabinet
Back Post
USB or monitor
cables to a
computer
Two screws
secure the
cable support

Instruction Manual
7
Troubleshooting
Symptom Causes Solution
Keyboard or mouse does
not work
In Auto Scan mode, the
keyboard and mouse
are not operable.
Press any front panel
button to select a
computer, then use the
keyboard and mouse.
Newly installed USB device
does not work
Improper device driver
Device consumes too
much power.
Improper device
initialization
Re-install device driver.
The device should be
self-powered; add a
power adapter to the
device.
Be sure the USB cable
is well seated to ensure
communication
Computer hangs while
switching computers
Device initialization
takes too much time
Wait at least 5
seconds before
computer switching
to ensure proper USB
communication.
Turn o device
driver (not keyboard
nor mouse) before
switching.
Auto Scan does not switch
PC automatically and
SV431DVIUA beeps
All PCs are o or only
one PC is turned on.
Scan mode works for
power-on computers
only.
Turn computers on.
Poor video resolution Improper video settings
To adjust the optimal
video signal strength
corresponding to the
length or quality of DVI
cable, press the FUNC
button combined with
the other buttons.