StarTech.com ST122 Manual

2/4/8 Port VGA Video Splitter
ST122
ST124
ST128 Instruction Guide
The Professionals’ Source For Hard-to-Find Computer Parts
V I D E O S PL ITTER
Revised: December 5, 2002
* Actual product may vary from photo

FCC COMPLIANCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class A
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.
Technical Support
The following technical resources are available for this StarTech.com product:
On-line help:
We are constantly adding new information to the Tech Support section of our web site. To
access this page, click the Tech Support link on our homepage, www.startech.com. In the
tech support section there are a number of options that can provide assistance with this
card.
Knowledge Base - This tool allows you to search for answers to common issues using
key words that describe the product and your issue.
FAQ - This tool provides quick answers to the top questions asked by our customers.
Downloads - This selection takes you to our driver download page where you can
findthe latest drivers for this product.
Call StarTech.com tech support for help: 1-519-455-4931
Support hours: Monday to Friday 9:00AM to 5:00PM EST (except holidays)
Warranty Information
This product is backed by a one-year warranty. In addition StarTech.com warrants its
products against defects in materials and workmanship for the periods noted below,
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 to StarTech.com Ltd. (or its 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 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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Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Cascading Your Video Splitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
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Technical Specifications
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ST122 ST124 ST128
Signal Type VGA, SVGA XGA, VGA, SVGA,
Multisync Multisync
Max. Cable Length 210ft (65m)
Input Connector High Density DB15 Male
Output Connectors 2 High Density 4 High Density 8 High Density
DB15 Female DB15 Female DB15 Female
VGA Bandwidth 250MHz 200MHz
(-3dB)
VGA Resolution 1600x1200 @70Hz 1600x1200 @60Hz
Operating Environ. 41~104ºF (5~40ºC)
0~80% RH non-condensing
Dimensions 4.10 x 3.86 x 0.95in 8.83 x 5.98 x 2.05 in
(104x98x24mm) (224 x 152 x 52mm)
Weight 0.42 lb. 2.54 lb. 2.65 lb.
(190g) (1150g) (1200g)
Power DC9V DC9V DC9V
300mA (max) 300mA (max) 600mA (max)
Certifications FCC Class A, CE Mark

Introduction
Thank you for purchasing a StarTech.com VideoView VGA video splitter. Depending on
the model you purchased, you can now share one video source between two (ST122),
four (ST124), or eight (ST128) screens. These video boosters are ideal for sending video
signals over long distances (up to 210ft/65m) and for the remote broadcast of stock
information, the remote display of lectures or lessons to classrooms, the remote display
of speeches or demonstrations to overflow rooms, and numerous other applications.
Features
• Duplicates video signals to 2, 4, or 8 outputs
• Transmits up to 210ft (65m)
• Daisy-chainable
• Supports 200 MHz (ST128) or 250 MHz (ST122, ST124) bandwidths
• Supports 1 XGA Port (in Video Out 1 port)
• Supports high-resolution video up to 1600 x 1200 @ 70Hz
• DDC compatible (Note: If a DDC monitor is connected to Video Out 1, all other
monitors must be able to support the DDC’s highest resolution)
• Backed by StarTech.com’s one-year warranty
Before You Begin
To ensure a quick and easy device installation, please read through this section carefully
before attempting to install the device.
Hardware Requirements
• One or more XGA, SVGA, VGA and/or Multisync-compatible analog monitor(s) with
standard PC high density cables with 15-pin D-type male connectors
• One XGA, SVGA, VGA, or Multisync analog video card with a standard PC 15-pin D-
type female connector
• SVGA extension cable(s) (not included)
NOTE:
1. This product is not suitable for CGA, EGA, or Monochrome monitors using a digital
video signal.
2. UL-2919 rated cable (such as the StarTech.com MXT101HQ_50 or MXT101HQ_100) is
recommended for the best video quality.
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Installation
This section will guide you through the installation of your Video Splitter. Please read
through the instructions carefully and complete each step in the order listed.
1. Make sure that the computers and monitors you are using are turned off.
2. Plug one end of your SVGA extension cable into the Video Splitter’s Video In port.
Plug the other end into your computer’s video output port.
3. Plug your monitor cable into any of the Video Splitter’s available Video Out ports.
4. Repeat Step 3 for any other monitors you wish to attach to the Video Splitter.
5. Set the Video Splitter’s Gain Control switch as follows:
• High if any of the monitors are more than 98ft (30m) away from your computer
• Normal if all of the monitors are less than 98ft (30m) away
NOTE: The Gain Control switch is located on the front of the ST122, and on the bottom
of the ST124/128.
6. Plug the power adapter into the Video Splitter’s AC 9V power jack. Plug the other
end into an available wall socket.
7. Power up all devices. To turn on the ST124 and ST128, press the Power button on
the front of the unit. The ST122 does not require a power button. If the devices are
properly connected to their power source, the power LED on the front of the device
should be lit.
NOTE: The ST122 also has a Signal LED that will be lit when the signal is clear between
the device and the computer.
Cascading Your Video Splitters
To cascade the Video Splitters, use an SVGA extension cable to connect the Video Out
port of the Master Video Splitter unit (the unit directly connected to the computer) to the
Video In port of the Slave Video Splitter unit.
NOTE: The 210ft (65m) broadcasting length does not apply to cascaded units. Video
Splitters that are cascaded should be stacked or kept close together.
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