StarTechcom Network Router SV831DUSBAU User Manual

8 Port Rack Mount VGA USB KVM  
Switch with Audio  
SV831DUSBAU  
*actual product may vary from photos  
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  
Manual Revision: 01/28/2013  
 
Table of Contents  
Introduction ...........................................................................................1  
Package Contents ..................................................................................................................................... 1  
Installation ..............................................................................................2  
Console Connection................................................................................................................................. 2  
Connecting Computers to the KVM Switch..................................................................................... 3  
Cascaded Configurations....................................................................................................................... 4  
Operation ................................................................................................5  
Push Button controls ............................................................................................................................... 5  
K/M Reset ..................................................................................................................................................... 5  
Auto Scan..................................................................................................................................................... 5  
OSD (On Screen Display) Operation....................................................6  
Auto Scan..................................................................................................................................................... 10  
Manual Scan................................................................................................................................................ 10  
Hot-key commands.................................................................................................................................. 11  
Sun/Mac Keyboard Mapping................................................................................................................ 13  
Specifications..........................................................................................15  
Technical Support ..................................................................................16  
Warranty Information............................................................................16  
Instruction Manual  
i
 
Introduction  
The SV831DUSBAU 8 Port Rack Mount USB VGA KVM Switch (with Audio Cables  
Included) allows you to control up to 8 USB computers using a single keyboard, mouse  
and monitor, and features Audio and Microphone ports to switch between audio  
signals as well as PC ports.  
Based on a 1U rack mountable slim form factor design, this 8 Port USB KVM uses  
rear cable connections to maximize space efficiency. Multiple KVM units can also be  
connected (cascaded) together for control of up to 64 computers, ensuring a scalable  
KVM solution that can be expanded as necessary.  
To ensure seamless operation, the switch features automatic and manual scan  
modes, supports both hot-key and front panel push-button switching, and features a  
convenient OSD (on-screen display) for added configuration options.  
Backed by a StarTech.com 3-year warranty and free lifetime technical support  
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 8 Port KVM Switch  
8 x 6ft. green (speaker) 3.5mm mini-jack audio cable  
8 x 6ft. red/pink (microphone) 3.5mm mini-jack audio cable  
2 x Mounting Bracket  
3 x Power Cord (NA/UK/EU)  
1 x User Manual  
1 x Foot pad (set)  
Instruction Manual  
1
 
Installation  
WARNING: Prior to installation, please ensure that all computers and KVM switch(es)  
are powered down.  
Console Connection  
The SV831DUSBAU is designed for use with USB console connections only. A USB  
compatible keyboard and mouse and VGA monitor must be used for the local console.  
A USB keyboard/mouse combo device that uses a single USB connector may also  
be used, but must be connected to the USB Keyboard port only. If using audio,  
separately connect the 3.5mm mini-jack cables for the speaker and microphone to the  
corresponding Console connectors indicated.  
Microphone  
Speakers  
VGA  
Monitor  
USB  
mouse  
USB  
keyboard  
Instruction Manual  
2
 
Connecting Computers to the KVM Switch  
To connect a computer to the KVM switch, use the appropriate StarTech.com KVM  
cable to connect from one of the PC ports located on the rear panel of the KVM switch  
to the keyboard/mouse and VGA video ports on the computer.  
If using audio, separately connect 3.5mm mini-jack cables for the speaker and  
microphone connections from the same PC port to the sound card on the computer.  
Repeat these steps for each computer you wish to connect to the KVM switch.  
KVM  
cable  
Instruction Manual  
3
 
Cascaded Configurations  
NOTE: The Master KVM switch must have equal or more PC ports than that of the Slave  
KVM switch. For example, if an 8-port switch is the Master KVM switch, an 8-port or  
4-port switch can be used as a Slave KVM switch, but a 16-port switch cannot be used.  
The ports labelled PC 1 - PC 8 can be connected to either a computer or a Slave  
KVM switch’s CONSOLE port, as shown below. Use only StarTech.com KVM cables to  
connect the Master KVM switch’s PC ports and Slave KVM switch’s CONSOLE port, as  
shown below:  
KVM cables  
The maximum number of computers controlled by a master/slave configuration with all  
8-port units is 64, including 8 Slave KVM switches and each slave unit connecting to 8  
computers as depicted below:  
DC9-12V, 500mA  
Master  
Slave  
Slave  
Computers  
Computers  
Instruction Manual  
4
 
NOTE: A device (computer or KVM switch) on any PC port can be changed at any time  
after initial power up. If you change any one of the PC1 thru PC8 connections from  
a computer system to a Slave KVM switch or vice-versa, or simply change/replace  
the device, the On-Screen Display (OSD) will update the next time the OSD menu is  
activated.  
After the connection has been completed, please reactivate the OSD menu to verify  
that the Master KVM switch has recognized the Slave KVM switches. A triangle mark is  
placed to the right of the Channel Name to indicate that the port connected is a KVM  
switch and not a computer. A number to the left of the triangle mark indicates the  
number of ports on the Slave KVM switch.  
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.  
K/M Reset  
K/M Reset resolves the majority of problems developed by keyboard and/or  
mouse device replacement or configuration changes. Press down buttons 1 and 2  
simultaneously for 2 seconds to reconfigure the whole system 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.  
Instruction Manual  
5
 
OSD (On Screen Display) Operation  
Currently  
selected channel  
address  
Port Channel  
Address  
To a 16-port  
Slave  
To an 8-port  
Slave  
Highlighted by  
arrow keys  
Eye mark  
enabled  
Security  
enabled port  
Master port  
name (group  
name)  
White indicates  
power off  
User-input port  
names  
Green indicates  
power on  
Eye mark enabled  
By hitting the left <CTRL> key twice within two seconds, you may see the ’Hotkey  
Menuif it is enabled (an OSD option). Or, by hitting the left <CTRL> key three  
times within two seconds, you will see a ’KVM MENUscreen displaying a list of the  
computers with corresponding channel addresses, names and status.  
Instruction Manual  
6
 
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 selection (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 SV831DUSBAU). 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’~’9and 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.  
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.  
Instruction Manual  
7
 
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).  
To lock a device 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.  
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.  
Instruction Manual  
8
 
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  
USB (non-Sun)  
Computer Type  
PC/Mac  
Sun  
Sun Mark  
No  
USB (non-Sun)  
Yes  
USB (Sun keyboard)  
USB (Sun keyboard)  
PC/Mac  
Sun  
No  
Yes  
ESC: To exit the OSD, press the <ESCAPE> key.  
Instruction Manual  
9
 
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 selected. 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. The non-volatile memory  
stores the Scan Type setting.  
Ready PC: In Scan mode, scan through power-on computers.  
N
only: In Scan mode, scan through any eye-marked 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.  
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.  
Instruction Manual  
10  
 
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, Middle, Lower Left, Lower Right.  
Country Code for Sun: Sun keyboards of different languages have  
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.  
You can adjust the monitor resolution under this sub-menu. The following selections  
are available: 1024x768, 1280x1024, 1600x1200, 1920x1440, widescreen: 1680x1050,  
1280x720, 1366x768, 1920x1080 and “DDC2B Disable.  
Hot-key commands  
Hot-key commands are short keyboard sequences used to select a computer, to  
activate computer scan, etc. SV831DUSBAU 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.  
NOTE: Left<CTRL>: denotes the Ctrl key on the left side of the keyboard  
Instruction Manual  
11  
 
1~8: designate the number keys ‘1’~‘8in 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 number, 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.  
Left <CTRL> , Left <CTRL> 6, 3 : Selects a computer connected to port 3 of a slave  
that is 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.  
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.  
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 set Audio Stick, which controls which computer’s microphone and speaker signal  
is active:  
Left <CTRL>, Left <CTRL>, F5  
The KVM switch will beep once or twice for ON and OFF respectively. When ON, audio  
selection follows computer selection. When OFF, audio selection stops following  
computer selection. Audio Stick is also accessible via the OSD menu (<F4>:More\  
Audio Stick).  
Instruction Manual  
12  
 
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.  
NOTE: For older Sun Operating Systems, the switch does not support 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 A in sequence.  
The Help function in Sun: Press right <CTRL> and release, then within 2 seconds, press  
the H key.  
Instruction Manual  
13  
 
Map to SUN  
Keyboard  
Map to MAC  
Keyboard  
From Standard Keyboard  
Press Right CTRL and release; 1  
Press Right CTRL and release; 2  
Press Right CTRL and release; 3  
Press Right CTRL and release; 4  
w
Power  
Press Right CTRL and release; F1  
Press Right CTRL and release; F2  
Press Right CTRL and release; F3  
Press Right CTRL and release; F4  
Press Right CTRL and release; F5  
Press Right CTRL and release; F6  
Press Right CTRL and release; F7  
Press Right CTRL and release; F8  
Press Right CTRL and release; F9  
Press Right CTRL and release; F10  
Print Screen  
Stop  
Again  
Props  
Undo  
Front  
Copy  
Open  
Paste  
Find  
Cut  
F13  
F14  
F15  
Scroll Lock  
Pause Break  
Press Right CTRL and release; H  
Right ÿ  
Help  
Right  
Left  
Right +  
Left +  
Left ÿ  
Compose  
Right ALT key  
ALT graph  
ALT  
Right - Option  
Left ALT key  
Left - Option  
Instruction Manual  
14  
 
Specifications  
Maximum # of connected  
computers (Cascaded)  
64  
Maximum Video Resolution  
Storage Temperature  
1920 x 1440  
-20° ~ 60° C  
Storage Humidity  
0-80% RH  
Operating Temperature  
Operating System Support  
Number of Computer Ports  
KVM Console Interface  
5° ~ 40° C  
OS Independent (transparent)  
8
USB  
1 x DE-15 VGA female  
2 x USB type A female  
Console Connectors  
2 x 3.5mm Audio Mini-Jack female  
1 x DE-15 VGA female  
Computer (PC) Connectors -  
Per Port  
2 x 3.5 mm Audio Mini-Jack female  
Power Consumption (Max.)  
Dimensions - H x W x L  
Weight  
9-12VDC, 500mA  
45 mm (1.77”) x 180 mm (7.09”) x 548mm (21.3)  
2.6 kg (91.78 oz)  
Instruction Manual  
15  
 
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.  
For the latest drivers/software, please visit www.startech.com/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.  
Instruction Manual  
16  
 
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parts. StarTech.com was founded in 1985 and has operations in the United States,  
Canada, the United Kingdom and Taiwan servicing a worldwide market.  
 

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