StarTech.com SV831DUSBA User manual

SV831DUSBA
8 Port USB Console KVM
Switch with Audio
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 rea-
sonable protection against harmful interference in a residential installation. This equip-
ment 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 com-
munications. However, there is no guarantee that interference will not occur in a particu-
lar 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.•
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related documents are the property of their respective holders.

Instruction Manual
i
Instruction Manual
Table of Contents
Introduction .................................................................... 1
Features ......................................................................................1
Package Contents .......................................................................1
Installation....................................................................... 2
Device Connection ......................................................................2
Connecting Computers to the Console........................................4
USB Only.................................................................................4
PS/2 Only ................................................................................4
Cascaded Configurations ............................................................4
Operation......................................................................... 7
Push Button controls ...................................................................7
K/M Reset....................................................................................7
Auto Scan ....................................................................................7
OSD (On Screen Display) Operation.............................. 8
Auto Scan ....................................................................................12
Manual Scan................................................................................12
Hot-key commands......................................................................14
Sun/Mac Keyboard Mapping .......................................................16
Specifications.................................................................. 18
Technical Support........................................................... 19
Warranty Information...................................................... 19

Instruction Manual
1
Introduction
Thank you for purchasing a StarTech.com 8 Port USB Console KVM
Switch with Audio. This product offers a reliable and efficient way to man-
age multiple computers in server rooms, or any other environment where
space is at a premium and provides the added benefit of audio switching
capability.
Features
Auto-scan function automatically selects computers sequentially•
Cascade configuration expands system capability•
Hotkey functions allow easy computer access/switching•
Identifies and selects computers by name assignment•
OSD security option protected against unauthorized computer use•
Unique cables offer convenient, space-saving connections•
Package Contents
1 x Mounting Bracket•
1 x Power Cord•
1 x PS/2 keyboard and mouse Y cable•
1 x StarView 8 Port KVM Switch•
1 x User Manual•

Instruction Manual
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Installation
Warning: Prior to installation, please ensure that all computers and
KVM switch(es) are powered down.
Device Connection
The SV831DUSB is designed for use with both USB and PS/2 console
connections, and is equipped with two slide switch console selectors
used for the selection of USB or PS/2 modes for the mouse and keyboard
(shown below).
There are three connection patterns that correspond with the slide switch
as follows:
PS/2 Keyboard and PS/2 Mouse:1. A PS/2 Y-connector (provided) will
be required for this connection to allow both the mouse and keyboard
to be connected to the PS/2 port. The mouse and keyboard slide
switches must be switched to the left.
Keyboard
Mouse
USB
PS/2

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PS/2 Keyboard and USB Mouse:2. The mouse slide switch must be
switched to the right, while the keyboard slide switch must be switched
to the left.
USB Keyboard and USB Mouse:3. Both the keyboard and mouse
switches must be switched to the right.
Please note: When configuring the switch as a slave in a cascaded
configuration, PS/2 Keyboard and Mouse is the only mode
that can be used. As such, SV431DUSB cannot be
configured as a slave in a cascaded setup, as it does not
provide a slide switch selector.

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Connecting Computers to the Console
USB Only
To connect a computer controlled by USB peripherals, use a 1-to-2 cable
(SVECONUSx) to connect from one of the PC Ports located on the rear
panel of the KVM switch to the USB and Video ports on the computer, as
shown below.
PS/2 Only
To connect a computer controlled by PS/2 peripherals, use a 1-to-3 cable
(SVECONx) to connect from one of the PC ports to the PS/2 keyboard
and mouse, as well as the video port of the computer.
VGA Port
USB Port
1-to-2
cable

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Cascaded Congurations
Please note: The master KVM Switch must have equal or more PC x
ports than that of the slave kvm unit. For example, if an 8-port switch is
the master, an 8-port or 4-port switch can be a slave, but not a 16-port
switch.
Please note: PS/2-only models can be cascaded with USB+PS/2 univer-
sal models.
Please note: To be used as slaves in a cascaded configuration, the slide
switch on SV831DUSBA must be adjusted to PS/2 mode.
The ports labelled PC 1 - PC 8 can be connected to either a computer
or a slave unit CONSOLE port, as shown below. Use only 1-to-3 (PS/2)
cables to connect the master’s PC ports and slave CONSOLE port, as
shown below.
1-to-3 cable
1-to-3 cable
Slave
Slave
Master

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The maximum number of computers controlled by a master/slave con-
figuration with all 8-port units is 64, including 8 slaves and each slave unit
connecting to 8 computers as depicted below:
DC9V, 500mA
Master
Slave
Slave
Computers
Computers

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Operation
You may select a computer by pressing the front panel push button
directly, by issuing hot-key commands or by activating the OSD window.
The front panel indicator changes to reflect the computer port selected
(red) and whether the port is connected to a powered computer (green).
The indicator flashes red when it is in either Auto Scan or Manual Scan
mode.
Push Button controls
To select control of an attached computer, press the front panel button
that corresponds with the assigned computer number. For 16 port mod-
els, 1 to 8 represents the lower 8 ports, while A to H indicates the higher
ports. Ports 1 and A share the same pushbutton, as do 2 and B, 3 and C
etc.
Example: If port 1 is already selected and you wish to switch to Port A,
tap the shared pushbutton once to select Port A. If Port 1 is not selected,
press and hold pushbutton 1 for two seconds to select Port A.
K/M Reset
K/M Reset resolves the majority of problems developed by keyboard and/
or mouse device replacement or configuration changes. Press down but-
tons 1 and 2 simultaneously for 2 seconds to reconfigure the whole sys-
tem without having to turn off the KVM switch or any attached computers.
Auto Scan
This KVM switch provides an easy to use feature to start Auto Scanning.
To use this function, simultaneously press buttons 7 and 8 and hold for
two seconds. (SV431DUSB uses buttons 3 and 4 to launch this function).

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OSD (On Screen Display) Operation
Port Channel
Address
Highlighted by
arrow keys
Security
enabled port
Currently
selected channel
address
To a 16-port
Slave
To an 8-port
Slave
Eye mark
enabled
Master port name
(group name)
By hitting the left <CTRL> key twice within two seconds, you may see
the ’Hotkey Menu’ if it is enabled (an OSD option). Or, by hitting the left
<CTRL> key three times within two seconds, you will see a ’KVM MENU’
screen displaying a list of the computers with corresponding channel ad-
dresses, names and status.
User-input port
names
Eye mark enabled
White indicates
power off
Green indicates
power on

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The channel address (port number) of the currently selected computer is
displayed in red, same as the front indicator, to the right of the OSD title
’KVM MENU’.
The color of a device name is green if it has power and is ready for selec-
tion (its corresponding front panel indicator is green),or the color is white
as it has no power.
OSD menu updates the color when it is activated.
Use the <UP> and <DOWN> arrow keys to highlight a computer and the
<ENTER> key to select it. Or, you may press <ESCAPE> to exit the OSD
and remove the OSD menu from the display; the status window returns
to the display and indicates the currently selected computer or operating
status.
A triangle mark ( ►) to the right of a name indicates the port is cascaded
to a slave switch; the number at the left of the triangle mark indicates the
number of ports the slave has, (i.e. 8 for SV831DUSBA). The <ENTER>
key brings you one level down and another screen pops up listing the
names of the computers on that slave. The name of the slave will be
shown at the upper right corner of the OSD menu. It is useful to group
computers and still be able to see the group name.
An eye mark (N) to the right of a name indicates the computer is selected
to be monitored in Scan mode. In the OSD, this mark can be switched on
or off by function key <F2>.
Press the <ESCAPE> key to exit the OSD and to return to the selected
computer, the computer name is also shown on the screen.
Function key <F1>: To edit the name entry of a computer or a slave, use
the <UP> and <DOWN> arrow keys to highlight a
channel, then press <F1> followed by name entry.
Valid characters are ‘A’~’Z’, ‘0’~’9’ and the dash
character. Lowercase letters are converted to
uppercase ones.
Press the <BACKSPACE> key to delete a letter one
at a time. Non-volatile memory stores all name en
tries until you change them, even if the unit is
powered down.
Function key <F2>: To switch the eye mark (N) of a computer on or off.

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First, use the <UP> and <DOWN> arrow keys to
highlight it, then press <F2> to switch it’s eye mark
on or off. If Scan Type is ’Ready PC + N’, only the
power-on and eye mark selected computers will be
displayed sequentially in Scan mode.
Function key <F3>: To lock a device (a computer or a slave) from
unauthorized access, use Security. Security is
effective for only one device (a computer or a slave).
Use the <UP> and <DOWN> arrow keys to highlight
it, then press <F3>. Now, enter up to 4 characters
(‘A’~’Z’, ‘0’~’9’, ‘-’) followed by <ENTER> as new
password. A Security enabled device is marked with
a lock (Ï) following its channel number. To
permanently disable the security function from a
locked device, highlight it, press <F3> then enter the
password.
If you want to access the locked device
temporarily, simply highlight it and press <ENTER>,
the OSD will ask you for the password. After entering
the correct password, you are allowed to use the
device. This device is automatically re-locked once
you switch to another port. During Scan mode, OSD
skips the security-enabled device.
NOTE: If you forget the password, the only way to permanently erase all
of the passwords is to press and hold the 1 and 2 front panel buttons,
then hold 7 and 8. Release 7 and 8, then release 1 and 2.
Function key <F4>: More functions are available by hitting <F4>. A new
screen pops up displaying more functions as
described below. Most of them are marked with a
triangle (►) indicating there are options to choose
from. Using the <UP> and <DOWN> arrow keys,
select the functions and press <ENTER>. Available
options will be shown in the middle of the screen.
Again, use the <UP> and <DOWN> arrow keys to
view options then press <ENTER> to make your
selection. You can press <ESCAPE> to exit.

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Function Key <F5>: To switch the Sun mark of a port on or off indicating
the computer is a Sun server as shown below. Sun
servers have more keys on the keyboard than a PC.
When a Sun-marked port is selected, the KVM
Switch starts to translate the keys from a PC
keyboard to a Sun keyboard. See the section entitled
Sun Keyboard Mapping for further detail.
Please note: It is unnecessary to switch the Sun mark ON or OFF if an
authentic Sun keyboard is being used on the console. In other words, you
must ensure that the Sun-marked port has not been selected if you are
already using a Sun keyboard.
With different types of keyboard and computer, the Sun Mark must be set
up in compliance with the following instruction:
Keyboard Type Computer Type Sun Mark
PS/2 PC/Mac No
PS/2 Sun Yes
USB (non-Sun) PC/Mac No
USB (non-Sun) Sun Yes
USB-Sun PC/Mac No
USB-Sun Sun Yes
Sun mark
selected
Sun
computer
selection

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Auto Scan
In this mode, the KVM Switch automatically switches from one power-on
computer to the next, sequentially, in a fixed interval. During AutoScan
mode, the OSD displays the name of the selected computer.
When Auto Scan detects any keyboard or mouse activity, it suspends the
scanning until activity stops; it then resumes with the next computer in
sequence.
To abort Auto Scan mode, press the left <CTRL> twice, or, press any
front button.
Scan Type and Scan Rate set the scan pattern. Scan Type (<F4>: More\
Scan Type) determines if scanned computers must also be eye mark se-
lected. Scan Rate(<F4>: More\Scan Rate) sets the display interval when
a computer is selected before selecting the next one.
Manual Scan
Scan through power-on computers one by one by keyboard control. You
can type (<F4>: More\Scan Type) to determine if scanned computers
must also be eye mark selected.
Press the up arrow key (á) to select the previous computer and the down
arrow key (â) to select the subsequent computer. Press any other key to
abort Manual Scan mode.
Scan Type:
Ready PC + N: In Scan mode, scan through power-on and eye mark
selected computers. Ready PC: In Scan mode, scan
through power-on computers. The non-volatile memory
stores the Scan Type setting. Scan Rate Sets the
duration of a computer displayed in Auto Scan mode.
The options are 3 seconds, 8 seconds, 15 seconds and
30 seconds. The non-volatile memory stores the Scan
Rate setting.
Ready PC:In Scan mode, scan through power-on computers.

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N only:In Scan mode, scan through any selected computer regardless
of computer power status. The non-volatile memory stores the
Scan Type setting.
Scan Rate: Sets the duration of a computer displayed in Auto Scan
mode.
The options are 3 seconds, 8 seconds, 15 seconds and 30
seconds. The non-volatile memory stores the Scan Rate
setting.
Keyboard Speed: SV831DUSBA offers keyboard typematic setting that
overrides similar settings in BIOS and in Windows.
Available speed options are Low, Middle, Fast and
Faster as 10, 15, 20 and 30 characters/second
respectively. Keyboard settings are stored in non-
volatile memory.
Hotkey Menu: When you hit the left <CTRL> key twice within two
seconds, the Hotkey Menu appears displaying a list of
hotkey commands if the option is On. The hotkey Menu
can be turned Off if you prefer not to see it when the left
<CTRL> key is hit twice. The non-volatile memory stores
the Hotkey Menu setting.
CH Display:
Auto Off: After you select a computer, the channel address and name of
the computer will appear on the screen for 3 seconds then
disappear automatically.
Always On: The channel address and name of a selected computer and/
or OSD status displayed on the screen all the time. The
non-volatile memory stores the CH Display setting.
Position: The position of the selected computer name and/or OSD status
displayed on-screen during operation. The actual display
position shifts due to different VGA resolution, the higher the
resolution the higher the display position. The non-volatile
memory stores the Position setting.
Upper Left, Upper Right, Lower Left, Lower Right, Middle.
Country Code for Sun: Sun keyboards of different languages have

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different layouts. The KVM switch is able to emulate a Sun
keyboard for a specific language type or country such as
Arabic, Belgian, US, Yugoslavia, etc. Select the proper
country code that matches all of your Sun computers.
Please Note: The country code must be set prior to
powering up the Sun computer. Not performing this step
prior to power-up could cause the system to malfunction.
Max. Resolution: You can adjust the monitor resolution under this
sub-menu. The following selections are available:
1024 x 768, 1280 x 1024, 1600 x 1200, 1920 x 1440
and “DDC2B Disable”.
Hot-key commands
Hot-key commands are short keyboard sequences used to select a
computer, to activate computer scan, etc. SV831DUSBA interprets
keystrokes followed by one or two more keystrokes; a built-in buzzer
generates a high-pitch beep for a correct hotkey command, otherwise,
one low-pitch beep for an error and the bad key sequence will not be
forwarded to the selected computer.
The short form hotkey menu can be turned on as an OSD function
(<F4>:More\Hotkey Menu) every time the left <CTRL> key is pressed
twice.
(Please Note: Left <CTRL>: designates the Control key on the left side of
the keyboard.)
1~8: designate the number keys ‘1’~‘8’ in the upper row of the keyboard
Do not use the keypad at the right of the keyboard.
To select a computer by hotkey command, you must know its port num-
ber, which is determined by the KVM Switch connection. For a computer
connected to a slave, two characters represent its port - the first character
is the port number of the master unit (1~8) and the second one is the port
number of the slave (1~8).
Left <CTRL> , Left <CTRL>, 7: Selects a computer connected to port 7
of the master.

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Left <CTRL> , Left <CTRL>6, 3: Selects a computer connected to port
3 of a slave connected to port 6 of the master.
To start Auto Scan, automatically scan power-on computers individually at
a fixed interval:
Left <CTRL>, Left <CTRL>, F1
When Auto Scan detects any keyboard or mouse 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.
To abort Auto Scan mode, press the left <CTRL> key twice.
Please Note: Scan Type determines whether an eye-marked computer is
to be displayed during Auto Scan.
Manual Scan enables you to manually switch back and forth between the
powered computers:
Left <CTRL>, left <CTRL>, F2
Press “á”, “┓ to select the previous or the next computer in sequence.
Press any other key to abort the Manual Scan.
Please Note: Scan Type determines whether an eye-marked computer is
to be displayed during Auto Scan.
To adjust Scan Rate, which sets the duration before switching to the next
computer in Auto Scan:
Left <CTRL>, Left <CTRL>, F3
The switch will beep one to four times indicating the scan interval of 3, 8,
15 and 30 seconds respectively.
To adjust keyboard typematic rate (characters/sec):
Left <CTRL>, Left <CTRL>, F4
The KVM switch beeps 1 to 4 times corresponding to 10, 15, 20 and 30
characters/second respectively.

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Sun/Mac Keyboard Mapping
The KVM Switch emulates a Sun Keyboard when a computer is marked
with a Sun, in the OSD menu by Function Key F5. A Sun keyboard has
more keys than a standard PC keyboard. These extra keys are simulated
by tapping the right CTRL button (normally located on the right lower
part of the keyboard) followed by one of the function keys on the general
keyboard (i.e. combo key). For example, tap the right CTRL key, and then
tap the function key F7 to activate Open for a Sun computer.
Please note: For older Sun Operating Systems, the switch does not sup-
port the LowPower option under Power Off Select.
For keystroke emulation of Sun/Mac computers, please refer to the chart
on the following page and conduct the following two examples:
Stop A function in Sun: Press right <CTRL> and release, then within two
seconds press F1 and Ain sequence.
The Help function in Sun: Press right <CTRL> and release, then within 2
seconds, press the Hkey.

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From Standard Keyboard Map to SUN
Keyboard
Map to MAC
Keyboard
Press Right CTRL and release; 1
Press Right CTRL and release; 2
Press Right CTRL and release; 3
Press Right CTRL and release; 4w Power
Press Right CTRL and release; F1 Stop
Press Right CTRL and release; F2 Again
Press Right CTRL and release; F3 Props
Press Right CTRL and release; F4 Undo
Press Right CTRL and release; F5 Front
Press Right CTRL and release; F6 Copy
Press Right CTRL and release; F7 Open
Press Right CTRL and release; F8 Paste
Press Right CTRL and release; F9 Find
Press Right CTRL and release; F10 Cut
Print Screen F13
Scroll Lock F14
Pause Break F15
Press Right CTRL and release; HHelp
Right ÿRight +Right
Left ÿLeft +Left
Compose
Right ALT key ALT graph Right - Option
Left ALT key ALT Left - Option