StarTech.com ST222MX User manual

Manual Revision: 02/23/2012
For the most up-to-date information, please visit: www.startech.com
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
ST222MX
ST222MXGB
ST224MX
ST228MX
2x2/4/8 High Resolution Matrix VGA
Video Switch
*actual product may vary from photos

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 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 dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Use ofTrademarks, 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
Features ........................................................................................................................................................ 1
Package Contents ..................................................................................................................................... 1
Installation ..............................................................................................2
Operation for Cascade............................................................................................................................. 2
Input/Output Signal Specications.................................................................................................... 3
Specications..........................................................................................4
Technical Support ..................................................................................5
Warranty Information............................................................................5

Instruction Manual
1
Introduction
Thank you for purchasing a StarTech.com Dual Input VGA Matrix Video Splitter for your
desktop computer or workstation. The ST222MX, ST224MX and ST228MX oer the
highest quality video on multiple monitor hookups. The Matrix Video Splitter allows
you to connect two, four or eight monitors to two or more computers and switch
the video signals to any desired monitor. The Matrix Video Splitter is ideal for Public
Video broadcast systems, demos and presentations, in-store product merchandising,
information kiosks, and nancial institutions
Features
• Allows two computers to display dierent images on various monitors
• Works with VGA, SVGA, XGA and Multisync monitors
•
Provides a resolution of up to 1920 x 1440 pixels with its high video bandwidth (250 Mhz)
• Uses standard monitor extension cables (StarTech.com coaxial VGA cables
recommended for best picture quality)
• Extends the video signal up to 213 ft. (65 m.) from your computer
• Able to daisy chain multiple monitor hookups
• Backed by StarTech.com’s one-year warranty
Package Contents
• 1x 2x2 VGA Matrix Switch
• 1x Power Adapter
• 1x Instruction Manual

Instruction Manual
2
Installation
1. Turn o the power to the computers and monitors.
2. Connect a HD-15 video extension cable between the VGA cards of the computers
and the “Video In” ports on the back of the Matrix Video splitter.
3. Connect the HD-15 video extension cables from the monitors and plug them into
the “Video Out 1” and “Video Out 2”ports on the back of the splitter.
4. Turn on the computers and the monitors.
5. Connect the input power jack to the back of the matrix video splitter and plug the
power adapter into the wall or power bar.
6. Use the SELECT buttons on the front of the splitter to obtain the image either from
7. PC “A” ( the Linked LED “A” light displays in green) or from PC“B” ( the Linked LED “B”
light displays in red).
8. If the Linked LED “A” or Linked LED “B” does not display any color then the splitter
has been switched o.
NOTE:
• All the “Video Out” ports will connect with the “Video In” port of PC A whileturning
on the matrix video splitter
• If you install the DDC monitor for the matrix video splitter, the rest of the monitors
must be the same resolution as the DDC monitor.
• Through the functionality of the DDC monitor, the “Video In” port of A will connect
with the “Video Out” on port 1 and the “Video In” port of B will connect with the
“Video Out” on port 2.
• Available monitors include the VGA, SVGA, XGA, Multisync, and exclude the CGA,
EGA, and MonoChrome.
Operation for Cascade
If you need to add more monitors, you need to attach an additional matrix video
splitter box.
1. Connect a HD-15 male/male video extension cable from the “Video Out 1” port of
the rst Matrix Video splitter box to the “Video In” port of your second matrix video.
2. Connect the input power jack to the back of the Matrix Video splitter and plug the
power adapter into the wall or power bar.
NOTE: Even though you can cascade the splitters, the image might become unstable if
you cascade too many tiers of video splitters.

Instruction Manual
3
Input/Output Signal Specications
Pin# Signal
1Red Video
2Green Video
3Blue Video
4ID2*
5Ground
6Analog Ground
7Analog Ground
8Analog Ground
9NC
10 Ground
11 ID0*
12 ID1*
13 Horizontal Sync
14 Vertical Sync
15 ID3*
*For video out port 1 and 2

Instruction Manual
4
Specications
Max Resolution 1920 x 1440 (60Mhz)
Pixel Frequency 250 Mhz
Cable Distance (Device to Monitor) 65m (213’) Maximum
Signal Type VGA, SVGA, XGA, Multisync
Power Adapter (Min) AC 7.5V (800mA)
Housing Metal
Standards DVI 1.0 by DDWG
Safety Standards FCC and CE Mark

Instruction Manual
5
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 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
ocers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of prots, 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.

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