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.

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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.

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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.