StarTech.com SV231DVIUA User manual

Manual Revision: 08/11/2011
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
SV231DVIUA
2 Port DVI USB KVM Switch with Audio
and USB 2.0 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........................................................................................................7
Change Leading Hotkey.......................................................................................................................7
Specications.....................................................................................................................................................8
Technical Support ...........................................................................................................................................9
Warranty Information....................................................................................................................................9

Instruction Manual 1
Introduction
The 2-Port DVI USB KVM Switch with Audio and USB 2.0 Hub lets you control two USB enabled,
DVI capable computers from a single monitor and peripheral set (keyboard, mouse and
speakers) and up to two additional USB peripherals connected through the USB hub ports.
Featuring convenient hot-key and front panel push-button switching options and high-
resolution support up to 1920x1200, the KVM switch is perfect for applications where central
control of two high-resolution computer systems is required. Ideal for multimedia applications,
this KVM switch supports audio and microphone switching, allowing you to switch between
audio/mic channels either independently or simultaneously when switching between
computers for KVM control.
The DVI USB KVM switch also features an integrated USB 2.0 hub which allows you to use shared
USB peripherals from the control point as if the devices were connected directly to the slave
computers - an economical solution that lets you use USB peripherals between computers
(when selected) without the expense of buying individual peripherals for each slave computer.
Packaging Contents
• 1 x KVM Switch
• 1 x Universal Power Adapter
• 1 x Set of rubber feet
• 1 x Instruction Manual
System Requirements
• DVI and USB enabled computer systems
• DVI enabled display device (i.e. monitor, projector, HDTV, etc)
• A standard 104-key wired USB keyboard
• A standard 3-button wired USB mouse

Instruction Manual 2
Front View
Rear View
Port Selection/Link
Port Selection Button

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
1. Plug a monitor into the Console side DVI connector using a standard male/male DVI cable;
plug a USB keyboard and a USB mouse into the dedicated USB keyboard and mouse ports
on the KVM switch.
2. Use a male/male DVI video cable to connect the DVI connector on the computer’s video
card, to one of the KVM’s PC ports (i.e. PC1). A dedicated DVI, USB and audio 4-in-1 KVM
cable can be used (i.e. StarTech.com ID: USBDVI4N1A6 or DVID4N1USB6).
NOTE: Ensure you are using the same type of DVI cabling throughout the installation (i.e.
DVI-D (digital) or DVI-I (analog/digital)). Mixing or using the incorrect type can result in
problems with the video.
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).

Instruction Manual 4
4. Repeat for 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 peripherals you wish to share between the connected
computers/devices to the extra USB Hub ports 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. The Power LED should light up solid and/or the LED for the
selected PC port.
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.
Driver Installation
No driver installation is required for the KVM switch, as the keyboard and mouse uses native USB
keyboard/mouse drivers that are already installed on all operating systems that fully support
USB.

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
Pressing the front panel “Select” button toggles between the PC 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 high-pitch beep will be generated for each
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).
To start Auto Scan:
Left <CTRL> + Left <CTRL> + <F1>
To abort the Auto Scan mode, press the left <CTRL> key twice.
NOTE: When Auto Scan detects any keyboard activity, it suspends the scanning until the
activity stops; it then resumes with the next computer in sequence. The length of the Auto
Scan interval (Scan Rate) is adjustable, see below.

Instruction Manual 6
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>
USB-Port Rule
There are two settings for USB-Port Rule: ON or OFF.
When set to ‘ON’, the USB Hub port follows computer selection.
When set to ‘OFF’, the USB Hub port stays on the currently selected PC port.
Press the hotkey below to turn ON/OFF the USB-Port Rule for USB 1 and USB 2:
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.

Instruction Manual 7
Alternative Hotkey Commands
In addition to the Left <CTRL> + Left <CTRL> hotkeys, there are two alternative hotkey
sequences available.
1. 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.
2. 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>