StarTech.com SV231HDMIUA User manual

HDMI KVM Switch
2-Port USB HDMI KVM Switch
with Audio and USB 2.0 Hub
SV231HDMIUA
Instruction Manual

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
Front View....................................................................................2
Rear View ....................................................................................2
Hardware Installation...................................................................3
Driver Installation.........................................................................4
Operation......................................................................... 4
Front Panel ..................................................................................4
HotKey Control ............................................................................5
Alternative Hotkey Commands ....................................................7
Specifications.................................................................. 9
Technical Support........................................................... 10
Warranty Information...................................................... 10

1
Introduction
Packaging Contents
1 x SV231HDMIUA switch•
1 x Power Adapter•
1 x Set of rubber feet•
1 x Instruction Manual•
System Requirements
HDMI and USB enabled systems•
HDMI enabled display device•
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 (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
USB keyboard
and mouse
ports
USB Hub
ports
Console HDMI
port
Power
connector
3.5mm Speaker/MIC
connectors
PC2 port PC1 port
Port Link/Selection
LED
Port Selection
button
Front View
Rear View

3
Hardware Installation
Plug a monitor/display into the Console HDMI connector; plug a1.
USB keyboard and a USB mouse into the dedicated USB keyboard
and mouse ports on the KVM switch.
Use a male-to-male HDMI video cable to connect the HDMI2.
connector on the computer’s/devices’ video card, to one of the
KVM’s PC ports (ie. PC1)
Use a USB type A-B Cable to connect the KVM’s USB port (type B,3.
square connector) for the PC port used in Step 2, and the USB port
on the computer/device (type A, flat connector).
Use a male-to-male 3.5mm mini-jack audio cable to connect the4.
speaker and microphone connectors on the computer/device to the
KVM’s speaker/mic ports for the PC port used in Step 2.
Repeat for Steps 2 thru 4 for each PC port on the KVM switch, or5.
each computer/device you wish to use on the KVM.
OPTIONAL:6. Connect any other USB peripherals you wish to share
between the connected computers/devices to the extra USB Hub
ports on the Console side.
Connect the external power adapter from a wall outlet to the power7.
connector on the rear panel of the KVM switch.
*Console setup

4
Power up the first computer/device and wait for it to fully boot and8.
test keyboard/mouse functionality.
Once operation has been successfully confirmed, switch to the next9.
port and power up that computer/device and confirm.
Once completed for all computers/devices connected to the KVM10.
switch, you should be able to switch between any 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
PC Link/Selection 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
Pushing the front panel “Select” button toggles between the PC ports
on the KVM switch.

5
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 buzzer generates 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 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

6
in sequence. The length of the Auto Scan interval (Scan Rate) is
adjustable, see below.
Manual Scan allows users to manually switch back and forth between
power-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 Stick
There are two options for Audio Stick: ON and OFF. When ON, audio
selection follows computer selection. When OFF, the current port’s
audio is used for all other ports. It is useful if you want to listen to a
particular computer’s audio signal while operating other computers.
Press Left <CTRL> + Press Left <CTRL> + Press F5
The KVM switch beeps once or twice corresponding to ON and OFF
respectively.
To change which port the audio is following to the currently selected
port, press the following hotkey:
Press Left <CTRL> + Press Left <CTRL> + Press A

7
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.
USB 1: pressing the hotkey below to turn ON/OFF the USB-Port Rule:
Left <CTRL> + Left <CTRL> + F7
To change the port that the USB hub stays on to the currently selected
port, press the following hotkey:
Left <CTRL> + Left <CTRL> + U
NOTE: Please make sure that linking procedure of 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.
For the following operations, users may press <ScrollLock> twice1.
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.

8
For those keyboards that do not have or support <ScrollLock>,2.
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.

9
Specications
Number of Ports 2
Computer Connectors
(per port)
1 x HDMI
1 x USB type B
2 x 3.5mm mini-jack
Console Connectors
1 x HDMI
4 x USB type A
2 x 3.5mm mini-jack
Maximum Video Resolution 1920x1200
DDC2B Support Yes
Audio Support Yes
On Screen Display No
Cascadable No
Switching Modes Front Panel Button, Hot-Keys
Power Adapter 5VDC, 2A, type N plug,
center positive
Enclosure Material Steel
Dimensions (WxHxD) 124.8mm x 40.0mm x 70.0mm
Weight 800g

10
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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