StarTech.com ST122VGAU Bedienungsanleitung
Manual Revision: 03/30/2011
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
For the most up-to-date information, please visit: www.startech.com
ST122VGAU
2 Port VGA Auto Switch
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
o 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 dierent 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.
Instruction Manual i
Table of Contents
Introduction........................................................................................................................................................1
Packaging Contents ................................................................................................................................1
System Requirements ............................................................................................................................1
Front View......................................................................................................................................................2
Rear View........................................................................................................................................................2
Installation............................................................................................................................................................3
Hardware Installation..............................................................................................................................3
Driver Installation......................................................................................................................................3
How to Use..........................................................................................................................................................3
Specications.....................................................................................................................................................4
Technical Support...........................................................................................................................................5
Warranty Information....................................................................................................................................5
Instruction Manual 1
Introduction
The ST122VGAU VGA Auto Switcher lets you share a single display between two computers
and prioritize your VGA signals. The switch features a primary and secondary VGA input, and
automatically outputs the signal from the primary input. When the signal feed connected to the
primary input is cut or turned o, the switcher automatically defaults to the video signal on the
secondary VGA input.
Packaging Contents
• 1 x ST122VGAU video switch
• 1 x Power Adapter
• 1 x Instruction Manual
System Requirements
• VGA enabled monitor/display
• VGA enabled video source(s)
Instruction Manual 2
Front View
Rear View
Instruction Manual 3
Installation
Hardware Installation
1. Connect the VGA monitor/display to the VGA output connector on the Video Switch. Power
on the monitor/display.
2. Connect a male/male VGA cable from the VGA video source (i.e. computer video card) to the
Port 1 VGA input on the Video Switch. This is the Primary input, so will be automatically
selected, when a video signal is present.
3. Using a male/male VGA cable, connect the secondary VGA video source to the Port 2 VGA
input on the Video Switch. This is the Secondary input, so will be automatically selected, if
a video signal is not present on the Primary input.
4. Connect the external power adapter to the Video Switch.
5. Power on the VGA video sources one at a time. The Online LED on the front panel will light
up when a video signal is found for each input.
Driver Installation
No driver or software installation is required on any computer system.
How to Use
The Primary input on the Video Switch take precedence when a video signal is present. When a
video signal is no longer present on the Primary input, the Video Switch will automatically switch
to the Secondary input. Once a video signal is restored to the Primary input, the Video Switch
will automatically switch to the Primary input.
The selected input on the Video Switch can be manually chosen via the front panel buttons.
Pressing the “Select” button for the desired input will immediately select it. This selection will
remain in aect, until a video signal disconnect/reconnect is sensed on the Primary input.
Instruction Manual 4
Specications
Video Signal VGA (RGB)
Number of Ports 2
Connectors 3 x DE-15 VGA female
1 x Power Connector
Maximum Video Resolution 1920x1440
Video Bandwidth 250MHz
DDC Support
DDC1, DDC2, DDC2B, DDC2B+,
DDC2AB
(Primary port only)
Enclosure Material Metal
Power Adapter 9VDC, 300mA, center positive
Dimensions 130.0mm x 76.0mm x 42.0mm
Weight 400g
Instruction Manual 5
Technical Support
StarTech.com’s lifetime technical support is an integral part of our commit-ment 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 two 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 ocers, directors,
employees or agents) for any damages (whether direct or indirect, special, punitive, incidental, conse-
quential, or otherwise), loss of prots, 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 exclu-
sion or limitation of incidental or consequential damages. If such laws apply, the limitations or exclusions
contained in this statement may not apply to you.
Hard-to-nd made easy. At StarTech.com, that isn’t a slogan. It’s a promise.
StarTech.com is your one-stop source for every connectivity part you need. From
the latest technology to legacy products — and all the parts that bridge the old
and new — we can help you nd the parts that connect your solutions.
We make it easy to locate the parts, and we quickly deliver them wherever they
need to go. Just talk to one of our tech advisors or visit our website. You’ll be
connected to the products you need in no time.
Visit www.startech.com for complete information on all StarTech.com products
and to access exclusive resources and time-saving tools.
StarTech.com is an ISO 9001 Registered manufacturer of connectivity and technology
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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