StarTech.com SV231DVIUAHR User manual

Manual Revision: 08/12/2011
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
SV231DVIUAHR
2 Port High Resolution Dual Link DVI
USB KVM Switch with Audio

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
Installation............................................................................................................................................................2
Front View......................................................................................................................................................3
Rear View........................................................................................................................................................3
Operation .............................................................................................................................................................5
Front Panel ....................................................................................................................................................5
HotKey Control...........................................................................................................................................5
Alternative Hotkey Commands........................................................................................................5
Change Leading Hotkey.......................................................................................................................7
Specications.....................................................................................................................................................8
Technical Support ...........................................................................................................................................9
Warranty Information....................................................................................................................................9

Instruction Manual 1
Introduction
The SV231DVIUAHR 2-Port High Resolution Dual-Link DVI USB KVM Switch provides simple, yet
comprehensive control of 2 directly-connected computers, as well as audio switching capability
and support for high resolution applications (supports resolutions beyond 1080p: 2560x1600 @
60Hz, up to 3840 x 2400 at lower refresh rates, and Apple Cinema quality resolutions), oering a
superior KVM switching solution that integrates perfectly into demanding imaging, medical, and
multimedia environments.
This 2-port DVI USB KVM Switch is compatible with all USB-supported operating systems, and
features a built-in USB 2.0 hub that allows you to share additional (up to 2) high speed USB
devices between computers.
Packaging Contents
• 1 x KVM Switch
• 1 x Instruction Manual
• 1 x Rubber Foot Pad set
• 1 x Universal Power Adapter
System Requirements
• DVI-D enabled display device (i.e. monitor, projector, HDTV, etc.)
• DVI-D and USB enabled computer system
• A standard 104-key wired USB keyboard
• A standard 3-button wired USB mouse

Instruction Manual 2
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.

Instruction Manual 3
Front View
Rear View

Instruction Manual 4
Console Connection
Before installation, ensure that all devices and computers to be connected to the KVM switch are
powered o.
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.
Computer Connection
1. Use a male-to-male cable to connect from a computer’s DVI port to the KVM switch’s DVI port
of PC side, as shown below.
2. Use a USB A-B Cable to connect from the KVM switch’s USB port (B connector, square
connector) to the USB port on the corresponding computer (A connector, at connector), as
shown below.

Instruction Manual 5
Operation
Front Panel
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.
Push Buttons
Pressing the “Select” button switches between ports.
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.
Auto Scan
The KVM automatically scans through the powered-on computers in sequence on a xed time
interval (see Scan Time below).

Instruction Manual 6
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 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.
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>

Instruction Manual 7
USB-Port Rule
There are two settings for USB-Port Rule: ON or OFF.
When set to ‘ON’, the USB Hub ports follows computer selection.
When set to ‘OFF’, the USB Hub ports stays on the currently selected PC port.
Press the hotkey below to turn ON/OFF the USB-Port Rule:
Left <CTRL> + Left <CTRL> + <F7>
To change the PC port that the USB hub stays on to the currently selected PC port, press the
following hotkey:
Left <CTRL> + Left <CTRL> + <U>
NOTE: Please make sure that installation of the USB device has been accomplished before
switching to the next computer.
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>