StarTech.com SV231QDVIUA User manual

Manual Revision: 06/20/2014
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
For the most up-to-date information, please visit: www.startech.com
SV231QDVIUA
2 Port USB Quad Monitor Dual-Link
DVI KVM Switch with Audio & Hub

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
Packaging Contents ................................................................................................................................1
System Requirements ............................................................................................................................1
Front View......................................................................................................................................................2
Rear View........................................................................................................................................................2
Installation............................................................................................................................................................3
Hardware Installation..............................................................................................................................3
Driver Installation......................................................................................................................................4
Operation .............................................................................................................................................................5
Front Panel ....................................................................................................................................................5
Hotkey Control ...........................................................................................................................................5
Alternative Hotkey Commands........................................................................................................8
Change Leading Hotkey.......................................................................................................................8
Specications.....................................................................................................................................................9
Technical Support...........................................................................................................................................10
Warranty Information....................................................................................................................................10

Instruction Manual 1
Introduction
The StarTech.com SV231QDVIUA 2 Port Quad Monitor DVI USB KVM Switch with Audio & USB
Hub allows two PCs, each with up to four dual-link DVI video outputs, to share monitors, a
microphone and set of stereo speakers, one keyboard and one mouse as well as one additional
USB peripheral. An ideal solution for graphic designers, CAD/CAM designers or educational and
nancial institutions, the Quad DVI USB KVM Switch allows you to instantly switch back and forth
between quad DVI display PCs at the touch of a button, while maintaining professional level
video quality on both monitors. The quad DVI switch also features an integrated USB hub port
that allows USB 2.0 peripherals such as thumb drives, external hard drives or web cams to be
shared between attached systems - eliminating duplicate peripheral costs.
Packaging Contents
• 1 x SV231QDVIUA switch
• 1 x Power Adapter
• 1 x Set of Rack Mounting brackets
• 1 x Set of rubber feet
• 1 x Instruction Manual
System Requirements
• Up to four DVI-D enabled display devices (i.e. monitor, projector, TV, etc.)
• A DVI output for each DVI display device for each computer
• USB enabled computer system with available USB port
• Standard 104-key wired USB keyboard
• Standard 3-button wired USB mouse

Instruction Manual 2
Front View
Rear View

Instruction Manual 3
Installation
NOTE: Prior to the installation, please power o all devices that will be connected to this system.
Ensure that all devices you will connect are properly grounded.
Place cables away from uorescent lights, air conditioners, and machines that are likely to
generate electrical noise.
If you experience any problems using a USB KVM switch, the following BIOS setup changes may
be necessary for PC users and not necessary for Mac users:
• Set HALT ON ERROR to ALL BUT KEYBOARD.
• In PNP AND PCI SETUP, set PNP OS INSTALLED to YES and set USB IRQ to ENABLED.
Dierent systems may use dierent naming, so contact your system manufacturer for further
assistance with these settings.
Hardware Installation
*Console Setup
1. Plug up to four monitor(s) into the Console’s DVI connectors; plug a USB keyboard and a USB
mouse into the dedicated USB keyboard and mouse ports on the KVM switch. If using
audio, also connect speakers with 3.5mm mini-jack plugs.
2. Use male-to-male DVI-D video cable(s) to connect the DVI connector(s) on the computer’s
video card, to the DVI ports for one of the KVM’s PC ports (i.e. PC1). NOTE: If using a
screen resolution greater than 1920x1200, dual-link cables are required.
3. Use a USB type A-B Cable to connect the KVM’s USB port (type B, square connector) for
the PC port used in Step 2, and the USB port on the computer (type A, at connector). If using
audio, connect 3.5mm mini-jack cables from the PC port to the sound card.

Instruction Manual 4
NOTE: DVI + USB + Audio KVM combo cables are also available which can be used in place of
separate individual cables
(e.g. StarTech.com ID: DVI4N1USB6)
4. Repeat Steps 2 and 3 for each PC port on the KVM switch, or each computer you wish to use
on the KVM.
5. OPTIONAL: Connect any other USB peripheral you wish to share between the connected
computers/devices to the extra USB Hub port on the Console side.
6. Connect the external power adapter from a wall outlet to the power connector on the rear
panel of the KVM switch.
7. Power up the rst computer/device and wait for it to fully boot and test keyboard/mouse
functionality.
8. Once operation has been successfully conrmed, switch to the next port and power up that
computer/device and conrm.
9. Once completed for all computers/devices connected to the KVM switch, you should be able
to switch between ports freely.
Driver Installation
No driver installation is required for the KVM switch, as the keyboard/mouse use USB drivers that
are already installed on any operating system that fully supports USB.
*Computer Setup

Instruction Manual 5
Operation
Front Panel
Port Selection/Link LED
The LED turns green when the connected computer is powered-on. The corresponding LED will
also illuminate red when that PC port is currently selected.
Port Selection Button
Each push of the Selection Button on the front of the KVM switch will immediately switch
between the two ports on the KVM switch.
Hotkey Control
A Hotkey command is a short keyboard sequence for selecting a computer, activating computer
scan, etc. A hotkey sequence starts with two left <CTRL> keystrokes (successively within 0.2
seconds) followed by one or two more keystrokes. A built-in tone generator creates a high-pitch
beep for correct hotkey command; otherwise, one low-pitch beep is generated for errors and the
bad key sequence will not be forwarded to the selected computer.
NOTE: Press and hold Left <SHIFT> and press <NumLock> twice, then release <SHIFT> followed
by pressing left <CTRL> once, which will enable / disable the hotkey feature.
To select a computer:
Left <CTRL> + Left <CTRL> + <1>
(Example: Selects the computer at port 1.)
Left <CTRL> + Left <CTRL> + <2>
(Example: Selects the computer at port 2.)
NOTE: Do not use the keypad on the right-side of the keyboard.

Instruction Manual 6
Auto Scan
The KVM automatically scans through the powered-on computers in sequence on a xed time
interval (see Scan Time below).
Note: The keyboard and mouse are not operable during Auto Scan.
To start Auto Scan:
Left <CTRL> + Left <CTRL> + <F1>
To abort the Auto Scan mode, press the left <CTRL> key twice. When Auto Scan detects any
keyboard or mouse activity, it suspends the scanning till the activity stops; it then resumes with
the next computer in sequence. The length of the Auto Scan interval (Scan Time) is adjustable,
see below.
Manual Scan allows users to manually switch back and forth between powered-on computers.
Left <CTRL> + Left <CTRL> + <F2>
To select the previous or the next computer, press <UP> or <DOWN> arrow keys. To abort the
Manual Scan, press any other key.
Scan Time
Four options are available for users to set the Scan Time duration, it Includes 3, 8, 15 and 30
seconds.
Note: Scan Time is set to 3 seconds by default.
To adjust Scan Rate, set the scan time of duration before switching to the next computer:
Left <CTRL> + Left <CTRL> + <F3>
The KVM Switch generates 1 to 4 beeps indicating a scan time duration for 3, 8, 15 or 30 seconds
respectively.

Instruction Manual 7
Audio Lock
There are two options for Audio Lock: ON and OFF. When ON, audio selection follows computer
selection. When OFF, audio selection stops following computer selection. It is useful if you want
to listen to a particular computer’s audio signal while operating other computers.
Left <CTRL> + Left <CTRL> + <F5>
The KVM switch beeps once or twice corresponding to ON and OFF respectively.
To change which computer port the audio stays on to the currently selected port, press the
following hotkey:
Left <CTRL> + Left <CTRL> + <A>
Alternative Hotkey Commands
In addition to the Left <CTRL> + Left <CTRL> hotkeys, there are two alternative hotkey
sequences available.

Instruction Manual 8
For the following operations, users may press <ScrollLock> twice instead of pressing left <CTRL>
twice.
To select a computer:
<ScrollLock> + <ScrollLock> + <1>
(Example: Select the computer at port 1.)
<ScrollLock> + <ScrollLock> + <2>
(Example: Select the computer at port 2.)
NOTE: Do not use the keypad at the right of the keyboard.
For those keyboards that do not have or support <ScrollLock>, please press and HOLD the Left
<SHIFT> and press <NumLock> twice instead of pressing Left <CTRL> twice.
To select a computer:
Hold Left <SHIFT> + Press <NumLock> + Press <NumLock>
then release <SHIFT> + Press <1>
(Example: Select the computer at port 1.)
Hold Left <SHIFT> + Press <NumLock> + Press <NumLock>
then release <SHIFT> + Press <2>
(Example: Select the computer at port 2.)
NOTE: Do not use the keypad at the right of the keyboard.
Change Leading Hotkey
The default leading hotkey sequence involves pressing the left <CTRL> twice in succession
(e.g. left <CTRL> + left <CTRL>). This can be changed to the right <CTRL> key instead, to avoid
accidental activation due to using the left <CTRL> key for functions such as Copy/Paste.
To change the leading hotkey sequence to Right <CTRL>:
Left <CTRL> + Left <CTRL> + hold <ALT> + press Right <CTRL>
All hotkey commands that previously required pressing the Left <CTRL> will be switched to
requiring the right <CTRL> instead.
To change the leading hotkey sequence back to Left <CTRL>:
Right <CTRL> + Right <CTRL> + hold <ALT> + press Left <CTRL>

Instruction Manual 9
Specciations
Number of Ports 2
Computer Connectors
(per port)
4 x 25-pin DVI-D female
(dual-link)
1 x USB type B female
2 x 3.5mm mini-jack Audio
Console Connectors
4 x 25-pin DVI-D female
(dual-link)
3 x USB type A female
2 x 3.5mm mini-jack Audio
Maximum Video Resolution 2560x1600
DDC2B Support Yes
Audio Support Yes
On Screen Display No
Cascadable No
Switching Modes Push button, Hot-key
Power Adapter 9~12VDC, 1500mA,
center positive
Enclosure Material Metal
Operating Temperature 0°C ~ 40°C (32°F ~ 104°F)
Storage Temperature -20°C ~ 60°C (-4°F ~ 140°F)
Humidity 0 ~ 80% RH
Dimensions (WxHxD) 438.0mm x 42.8mm x 177.6mm
Weight 3000 g

Instruction Manual 10
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 product, visit www.startech.com/
support and access our comprehensive 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 workmanship 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 ocers,
directors, employees or agents) for any damages (whether direct or indirect, special, punitive,
incidental, consequential, or otherwise), loss of prots, 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.

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