StarTechcom Switch SV431H User Manual

4PortKeyboard/Mouse/Monitor  
SharingSwitchUSB-PS/2  
User's Manual  
SV431H  
 
1
Introduction  
Overview  
The StarTech.com SV431H, fully compatible with USB specification,  
is a hybrid USB and PS/1 keyboard/mouse/monitor sharing switch.  
The SV431H USB switch lets a user manage four computers by USB  
or PS/2 interface or a combination of both, from 1 monitor, PS/2  
keyboard and mouse saving you space, time, equipment and money.  
Installation is as easy as connecting USB A-B cables or PS/2 cables  
in between computers and the SV431H switch. Selecting a computer  
is as easy as front panel push button pressing or by entering hotkey  
commands. The SV431H switch provides the easiest way to manage  
multiple USB or PS/2 computers with one PS/2 keyboard, mouse and  
monitor. No more tangled cables and messy working environments.  
Features  
• Manage 4 PCs with USB or PS/2 interfaces from one PS/2  
keyboard, mouse or monitor.  
• Front panel push buttons and hotkey commands for easy computer  
selection.  
• No drivers needed for keyboard and mouse operation.  
• Support keyboard and mouse operation.  
• High VGA resolution: 1920 x 1440.  
• Buzzer sound for computer switching confirmation.  
• Activate Auto Scan by front button pressing.  
• Selectable Scan Time interval.  
• Support the latest DDC2B VGA monitor.  
• Saves time, space, equipment and power.  
• No software required.  
 
2
Installation  
PC BIOS Notice  
The following BIOS setup changes are necessary for PC users using  
USB and not necessary for Mac users:  
1. In STANDARD CMOS, set HALT ON ERROR to ALL BUT  
KEYBOARD.  
2. In PNP AN PCI SETUP, set PNP OS INSTALLED to YES and set  
USB IRQ to ENABLE.  
3. For newer computers: in INTEGRATED PERIPHERALS, set  
USB CONTROLLER and KEYBOARD SUPPORT to ENABLE.  
Also make sure that USB is properly selected in Device Manager  
under Control Panel, as shown below.  
Note: The SV431H is applicable for USB keyboard and mouse.  
Switching from one computer to the next is equivalent to unplugging  
the USB device from one computer and plugging it to another. Some  
USB drivers check attached USB peripherals all the time and do not  
accept plug-n-play function.  
 
3
Adhesive Rubber Feet  
For desktop operation, you may stick the four round rubber feet  
(supplied with the unit) to the bottom of the StarView. Do not use the  
rubber feet with the rack mount option.  
Console Connection  
Before installation make sure all devices and computers to be  
connected to the SV431H have been turned off.  
Plug you monitor to the console’s VGA port; connect the PS/2 mouse  
and keyboard to the condole port marked with a mouse and a  
keyboard as shown in figure below.  
Computer Connection  
Use a HDB15 male-to-female cable to connect from your computer’s  
VGA port to the SV431H VGA port as shown on the following page.  
• For USB computers: Use a USB A-B cable to connect from one of  
the SV431H PC ports to the USB port on the corresponding  
computer (series A connector), as shown on the following page.  
 
4
• For PS/2 computers: Connect a “PS/2 Y-adapter”, which comes  
with the unit, to the SV431H PS/2, then use two mini-DIN6 male-to-  
male cables for keyboard and mouse, see figure below. There are  
two mini-DIN6 female connectors on the “PS/2 Y-adapter” marked as  
keyboard and mouse. Be sure not to swap the connections.  
 
5
• For notebook computers: In most cases, all you need is one PS/2  
male-to-male cable connected between the SV431H and your  
Notebook; the Y-adapter is not necessary. However, some Notebook  
computers do not follow industry-standard, please check your  
Notebook user’s manual for details.  
You can now turn on all devices and computers.  
Note: Do use both PS/2 and USB of a PC port on the SV431H at the  
same time. Only the USB port will effective if this occures.  
Operations  
Front Panel  
• Online LED & Selected LED  
When the LED turns green, the connected computer is powered-on.  
When a computer is selected, its corresponding red LED illuminates.  
• Pushbuttons  
Each computer has a button associated with it on the front panel for  
selection.  
• K/M Reset  
K/M Reset solves most problems developed by keyboard, mouse,  
device replacement or change of configuration. Press both of the  
front-panel number 1 and 2 push buttons for 2 seconds to  
re-configure the whole system without turning either the SV431H or  
any computer off.  
• Auto Scan  
Auto Scan automatically scans through computers one by one in a  
fixed intervals. The SV431H provides an easy to use feature to start  
Auto Scanning. You can press down both the front-panel number 3  
and 4 buttons for 2 seconds to start Auto Scanning.  
 
6
Note: Computers using a USB keyboard and mouse are not  
immediately operable when selected during during Auto Scan. Wait  
for about three seconds after switching to a USB computer, then use  
the keyboard and mouse.  
Hot Key Commands  
Hot Key commands are short keyboard sequences used to select a  
computer, to activate computer scan, etc. The SV431H interprets  
keyboard strokes for Hot Keys all the time. A Hot Key sequence starts  
with 2 left <Ctrl> keystrokes followed by 1 or 2 more key strokes. A  
built-in buzzer generates a high-pitch beep for correct hot key  
commands; otherwise, one low-pitch beep for an error and the bad  
key sequence will not be forwarded to the selected computer.  
L-Ctrl: is the <Ctrl> key located at the left side of the keyboard.  
1~4: are the numbers ‘1’ ~ ‘4’ at the upper row of the keyboard.  
Do not use the keypad at the right of the keyboard.  
To select a computer by hot key command, you must know its port  
address, which is determined by the SV431H connection at the back.  
Left Ctrl + Left Ctrl + 4  
Selects a computer connected to the PC port 4.  
To start Auto Scan, which will automatically scan power-on  
computers one by one at a fixed interval:  
Left Ctrl + Left Ctrl + F1  
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. The length of the Auto Scan interval (Scan  
Rate) is adjustable. To abort the Auto Scan mode, press the left Ctrl  
key twice.  
• Manual Scan enables you to manually switch back and forth  
between power-on computers.  
Left Ctrl + Left Ctrl + F2  
Press or to select the previous or the next computer in  
sequence. Press any other key to abort the Manual Scan.  
 
7
To adjust the Scan Rate which sets the duration before switching to  
the next computer in Auto Scan:  
Left Ctrl + Left Ctrl + F3  
The SV431H sends one to four beeps indicating scan intervals of 3,  
8, 15 and 30 seconds respectively.  
To adjust keyboard typematic rate (characters/sec), this setting  
over-rides that of the BIOS and any operating system:  
Left Ctrl + Left Ctrl + F4  
The Sv431H generates 1 to 4 beeps corresponding to 10, 15, 20 and  
30 characters/sec respectively.  
Cascade Configuration  
Connection  
Before connecting a device (a computer or any other SV431H) to the  
master under power, you must turn off the devices. Only the PS/2  
ports are operable for cascade operation.  
Computer Selection by Hot Key Command  
The first digit is the port address of the Master unit (1~4) and the  
second digit is the port address of the Slave (1~4). Please note that  
only the Master’s PS/2 ports can be connected to a Slave’s Console  
port.  
Left Ctrl + Left ctrl + 1 + 3  
Selects a computer connected to PS/2 port 3 of a Slave connected to  
PS/2 port 1 of the Master.  
 
8
Appendices  
Specifications  
Specification  
SV431H  
No. of computers supported  
Front panel push button  
Hot plug-and-play  
4
4
Automatic scan interval  
3, 8, 15, 30 seconds  
30M (100ft) for VGA  
5M (15ft) for USB  
30M (90ft) for PS/2  
4
Automatic scan interval  
Cable Length (Max)  
Computer Online LED  
Computer Selected LED  
VGA  
4
1920 x 1440, DDC2B  
USB Type B x 4, PS/2 x 3  
HDB-15 male x 4  
PS/2 x 2  
Computer peripheral  
connector monitor  
Console peripheral connector  
monitor  
HDB-15 female x 1  
90  
Weight (g)  
(oz.)  
31.74  
H x W x D (mm)  
(in.)  
Size  
44 x 220 x 130  
1.7 x 8.7 x 5.1  
Compact  
 
9
Troubleshooting  
Ensure that all cables are well seated. Label the cable for each  
computer to avoid confusion when connected to the SV431H.  
Key  
Possible causes  
Solutions  
Keyboard or mouse • In Auto Scan,  
• Press any front button  
to select a computer,  
then use the keyboard  
and mouse.  
does not work  
computers using  
USB keyboard and  
mouse are not  
operable.  
• Remove all  
Too many  
unnecessary keyboard  
keyboard or mouse and mouse drivers.  
drivers installed.  
Keyboard or mouse The USB computer Update that computer’s  
does not work after does not support  
USB driver. Device hot  
plug-and-play is one of  
the basic USB  
switching to a  
different USB  
computer.  
plug-and-play as  
specified by the  
USB standard.  
specifications.  
Computer hangs  
up while switching  
computers.  
USB computer  
initialization take  
too much time.  
Wait at least 5 seconds  
before switching from  
one USB computer to  
another to ensure  
proper USB  
communication.  
Auto Scan does not All PCs are off or  
Turn computers on.  
switch PCs  
automatically and  
only one PC is  
turned on. Scan  
the SV431H beeps. mode works for  
power-on  
computers only.  
 
10  
Limited Warranty  
IN NO EVENT SHALL THE DIRECT VENDOR’S LIABILTY FOR  
DIRECT OR INDIRECT, SPECIAL, INCIDENTAL OR  
CONSEQUENTIAL DAMAGES, LOSS OF PROFIT, LOSS OF  
BUSINESS, OR FINANCIAL LOSS WHICH MAY BE CAUSED BY  
THE USE OF THE PRODUCT EXCEEDS THE PRICES PAID FOR  
THE PRODUCT.  
The direct vendor makes no warranty or representation, expressed or  
implied with respect to the contents or use of this documentation, and  
especially disclaims its quality, performance, merchantability, or  
fitness for any particular purpose.  
The direct vendor also reserves the right to revise or update the  
product or documentation without obligation to notify any user or  
organization of such revisions or updates. For further information,  
please contact your direct vendor.  
All the brand names and registered trademarks are the property of  
their respective owners.  
 

Sharp DVD Recorder TINSE0568AWZZ User Manual
Sharp Projector PGD3510XL User Manual
Sherwood Stereo Receiver RD 7502 User Manual
Shure Microphone 27C8642 User Manual
Silex technology Network Card C 6700WG User Manual
Soehnle Building Set 7725 User Manual
Soleus Air Fan MS 12 User Manual
Sony Computer Monitor SDM S204E User Manual
Sony Flat Panel Television 4 136 111 121 User Manual
Sony Network Card PCWA C300S User Manual