StarTech.com SV231DPUA User manual

DisplayPort KVM Switch
2/4-Port Professional USB,
DisplayPort KVM Switch
with Audio
SV231DPUA
SV431DPUA
Instruction Manual
Manual Revision:07/22/2010
For the most up-to-date information, please visit www.startech.com

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 off 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 different 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.

i
Table of Contents
Introduction..................................................................... 1
Packaging Contents.....................................................................1
System Requirements .................................................................1
Installation....................................................................... 1
Hardware Installation...................................................................2
Front View - SV231DPUA............................................................2
Rear View - SV231DPUA ............................................................2
Front View - SV431DPUA............................................................3
Rear View - SV431DPUA ............................................................3
Driver Installation.........................................................................5
Operation......................................................................... 5
Front Panel ..................................................................................5
HotKey Control ............................................................................6
Alternative Hotkey Commands ....................................................9
Change Leading Hotkey ..............................................................10
Specifications.................................................................. 11
Technical Support........................................................... 12
Warranty Information...................................................... 12

1
Introduction
Packaging Contents
• 1 x SV231DPUA or SV431DPUA KVM switch
• 1 x Power Adapter
• 1 x Rubber Feet
• 1 x Instruction Manual
System Requirements
• DisplayPort enabled computer system/video card
• USB enabled computer system
• DisplayPort enabled display device (e.g. monitor, projector, TV, etc.)
• Standard 104-key wired USB keyboard
• Standard 3-button wired USB mouse
Installation
NOTE: Prior to the installation, please power off all devices that will
be connected to this system. Ensure that all devices you will connect
are properly grounded. Place cables away from fluorescent 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.
Different systems may use different naming, so contact your system
manufacturer for further assistance with these settings.

2
Hardware Installation
Front View - SV231DPUA
Rear View - SV231DPUA

3
Front View - SV431DPUA
Rear View - SV431DPUA

4
*installation pictures are representations only
1. Plug a monitor into the Console’s DisplayPort connector; 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 and/or a microphone with 3.5mm mini-jack plugs.
2. Use a male-to-male DisplayPort video cable to connect the
DisplayPort connector on the computer’s video card, to one of the
KVM’s PC ports (i.e. PC1)
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, flat connector). If using audio, connect
3.5mm mini-jack cables from the PC port to the computer sound
card.

5
NOTE: A DisplayPort + USB + Audio KVM combo cable is also
available which can be used in place of separate individual cables,
StarTech.com ID: DP4N1USB6.
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 first computer/device and wait for it to fully boot and
test keyboard/mouse functionality.
8. Once operation has been successfully confirmed, switch to the next
port and power up that computer/device and confirm.
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
and mouse use generic USB keyboard/mouse drivers that are already
installed on any operating system that fully supports USB.
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.

6
Port Selection Button
2-Port: Pressing the front panel “Select” button will toggle between the
two ports on the KVM switch.
4-Port: Each push button on the front panel corresponds with a PC
port. Pressing that button will immediately select that port.
AutoScan
The system automatically scans through the power-on computers in
sequence with a fixed interval (see Scan Time below).
4-Port:To activate AutoScan, press front panel push buttons “3” and
“4” simultaneously. The port selection LED will flash during
AutoScan. AutoScan will select active computers only. To exit
AutoScan mode, just press any one of the front panel push
buttons.
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.
4-Port:To change the Scan Time, press front panel buttons “1” and “2”
simultaneously. The unit will respond with beep(s) of 1, 2, 3 or
4 times for a Scan Time of 3, 8, 15 or 30 seconds respectively.
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.

7
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 fixed 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.

8
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 ports follows computer selection.
When set to ‘OFF’, the USB Hub ports stays on the currently selected
PC port.

9
USB 1: press the hotkey below to turn ON/OFF the USB-Port Rule on
both USB Hub ports (2-port only) or USB Hub port 1 (4-port only):
Left <CTRL> + Left <CTRL> + <F7>
USB 2: press the hotkey below to turn ON/OFF the USB-Port Rule on
USB Hub port 2 (4-port only):
Left <CTRL> + Left <CTRL> + <F8>
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.
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.

10
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>

11
Specications
SV231DPUA SV431DPUA
Number of Ports 2 4
Computer Connectors
(per port)
1 x DisplayPort
1 x USB type B
2 x 3.5mm mini-jack
Console Connectors
1 x DisplayPort
4 x USB type A
2 x 3.5mm mini-jack
LEDs 2 x Port Select/Power 1 x Power
4 x Port Select/Power
Maximum Video
Resolution
2560x1600@60Hz
(higher resolutions may be supported at lower
refresh rates)
Switching Modes Front Panel Button, Hotkey
Rack Mountable No Yes (optional kit)
Cascadable No
On Screen Display No
DDC2B Support Yes
Audio Yes
Enclosure Material Metal
Power Adapter 9-12VDC, 1.5A
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) 160.0mm x 44.0mm x
100.0mm
220.7mm x 44.0mm x
130.6mm
Weight 1050g 1100g

12
Technical Support
StarTech.com’s lifetime technical support is an integral part of our
commitment 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 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.

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