StarTech.com StarView SV231USB User manual

USB 2.0 KVM Switch
SV231USB
SV431USB Instruction Manual
Actual product may vary from photo
2 Port StarView USB KVM Switch Kit with Cables
4 Port StarView USB KVM Switch

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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.
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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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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Accessory Products from StarTech.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PC BIOS Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Computer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Auto Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Rackmount Kit for SV431USB (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Instruction Manual
i

Instruction Manual
1
The StarView SV231USB and SV431USB, fully compatible with USB 2.0 specifications,
are a combination of USB 2.0 KVM (Keyboard/Video/Mouse) switches and USB 2.0
peripherals sharing devices.
With the SV231USB and SV431USB, you can easily operate up to 2 or 4 PCs, G3/G4
Macs, or iMacs respectively from the 1 USB keyboard, 1 USB mouse, and 1 monitor
saving you space, time, equipment and money. Its peripheral sharing function enables
you to share more USB 2.0 peripherals among all computers. Installation is easy as
connecting USB A-B cables to the computers and to the StarView switch.
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Features
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•Front panel push buttons for easy computer selection
•No drivers needed for keyboard and mouse operation
•Supports keyboard and mouse plug-n-play
•High VGA resolution: 1920 x 1440
•Buzzer sounds for computer switching confirmation
•Front button Auto Scan activation
•Selectable Scan Time interval
•1x StarView USB KVM Switch
Package Contents
•1 x Instruction Guide
•1 x Power Adapter (only SV231USB)
•2 x 2-in-1 USB/Monitor cables (only SV231USB)
This package should contain:
•One VGA, SVGA or Multisync monitor
System Requirements
•One USB 2.0 keyboard
•One USB 2.0 mouse
Console side

Instruction Manual
2
System Requirements Cont’d
Computer side
•One HDB15 male-to-female VGA cable or monitor
•One USB 2.0 A-B cable with Type-A and Type-B plug for USB devices
Each USB 2.0 enabled computer must be connected to the StarView switch by:
•HDB-15 to DB-15 VGA adapter is required for Mac computer VGA ports
SVUSB2N1_6
6 ft. USB + VGA 2-in-1 KVM Switch Cable
SVUSB2N1_10
10 ft. USB + VGA 2-in-1 KVM Switch Cable
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Contact your local StarTech.com dealer or visit www.startech.com for cables or other
accessories that will help you get the best performance out of your new product.
SVUSB2N1_15
15 ft. USB+VGA 2-in-1 KVM Switch Cable
SVUSBPOWER
SV231USB & SV431USB Power Adapter DC5V

Instruction Manual
3
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The following BIOS setup changes are necessary for PC users and not necessary
for Mac users:
1. In STANDARD CMOS, set HALT ON ERROR to ALL BUT KEYBOARD
2. In PNP and PCI SETUP, set PNP OS INSTALLED to YES and set USB IRQ to
ENABLED Note: The StarView switch is applicable for USB 2.0 keyboard and mouse
switching from one computer to the other. If you plan to share other peripherals such
as a CCD camera, printer or scanner, it is necessary to shut down the driver of the
computer before switching to another computer. Because port switching is equivalent
to unplugging the USB cable from one computer and plugging it into another one,
some USB drivers check attached USB peripherals all the time and do not accept
plug-n-play functions.
Before installation, make sure all devices and computers to be connected to the StarView
switch have been turned off. Plug a monitor to the Console’s VGA port; plug a USB 2.0
keyboard and a USB 2.0 mouse Console’s USB ports as shown in figure 2. For
SV431USB only : As an option, the Master StarView is either SV431 or SV431D to be
linked to the SV431USB with a mini-DIN8 male-to-male cable. The SV431USB can
operate as USB 2.0 peripheral sharing devices
PC BIOS Notice
Console Connection
SV231USB
SV431USB
123
1
2
3
USB Keyboard
USB Mouse
USB Device
1
2
3

Instruction Manual
4
Computer Connection
Use a HDB15 male-to-female cable to connect from a computer’s VGA port to the
StarView’s VGA port of the PC side, as shown below.
Use a USB 2.0 A-B cable to connect from the StarView’s USB 2.0 port on the
corresponding computer (A connector is the flat connector) as shown below.
Female to Male HDDB15
for VGA
One USB Patch Cable for
both Keyboard and Mouse
Female to Male HDDB15
for VGA
One USB Patch Cable for
both Keyboard and Mouse

Instruction Manual
5
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Front Panel
1. On-line LED and Selected LED:
When the LED turns green, the connected computer is powered-on. When a computer
is selected its corresponding red LED illuminates.
2. Push buttons:
Each computer has a button associated with it on the front panel for selection.
Auto Scan
Auto Scan automatically scans through computers one by one in a fixed interval (see
Scan Time below). Note: keyboard or mouse is not operable during Auto Scan.
For SV231USB
It sets the scan interval for Auto Scan. The Scan Time options are 3, 8, 15 and 30
seconds. Note: Scan Time is automatically set to the default of 3 seconds when the KAG
switch loses power.
For SV431USB
To activate Auto Scan, press down front panel push buttons “3” and “4” simultaneously.
The port LED flashes during Auto Scan. Auto Scan is effective for powered-on
computers only. To exit the Auto Scan mode, just tap any one of the pushbuttons.
To change the Scan Time interval, press both front panel buttons “1” and “2”
simultaneously. The Sv431USB beeps 1, 2, 3 or 4 times for Scan Time of 3, 8, 15 or 30
seconds respectively.

Instruction Manual
6
Rack Mount Kit for SV431USB (optional)
The figure below shows how to attach optional mounting brackets and cable support to
the SV431USB for standard 19-inch rack cabinet.
To the Rack Cabinet
back post
Keyboard, Mouse,
Monitor cables to the
StarView KVM Switch
Two screws secure
the cable support
Keyboard, Mouse,
Monitor cables to
the computer
To the Rack Cabinet
back post

Instruction Manual
7
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Symptom Causes Solutions
Keyboard or
mouse does not
work
In Auto Scan, keyboard and mouse are
not operable. Too many keyboard or
mouse drivers installed.
Press any front button to select a computer, then use
the keyboard and mouse. Remove ALL unnecessary
keyboard and mouse drivers.
Newly installed
USB device does
not work.
Improper device driver. Device consumes
too much power. Device consumes too
much power instantaneously.
Improper device initialization. When
StarView switch works under self-power,
i.e., no power supply added, it supports
max of 100mA as per USB spec.
Re-install device driver. The device should be self-
powered, add a power adapter to the device. If the
device does not provide power jack, add a power
adapter of less than 1A current rating to the StarView
switch Be sure the USB cable is well seated to
ensure communication. Remove all power sources
to the StarView by unplugging all USB A-B cables
and the power adapter; then start all over again.
Select the computer by pushbutton, restart the
computer and try again.
Computer hangs
up while
switching
computers.
Device initialization takes too much time.
Wait at least 5 seconds before computer switching to
ensure proper USB communication. Turn off device
driver (not keyboard or mouse) before computer
switching.
Auto Scan does
not switch PC
automatically
and StarView
beeps.
All PCs are off or only one PC is turned
on. Scan mode works for power-on
computers only.
Turn computers on.
2
2

Instruction Manual
8
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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.
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This product is backed by a 3-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
9

Revised: 23 March 2007 (Rev. A)
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StarTech.com is “The Professionals’ Source for Hard-to-Find Computer
Parts”. Since 1985, we have been providing IT professionals with the
quality products they need to complete their solutions. We offer an
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locations in the United States, Canada, the United Kingdom and Taiwan.
Visit www.startech.com for complete information about all our products
and to access exclusive interactive tools such as the Parts Finder and the
KVM Reference Guide. StarTech.com makes it easy to complete almost
any IT solution. Find out for yourself why our products lead the industry in
performance, support, and value.