StarTech.com ST122PRO, ST122PROGB, ST122PROEU, ST124PRO, ST124PROGB Installation Manual

Installation Guide

2/4/8-Port High Resolution VGA Video Splitter

ST122PRO / ST122PROGB / ST122PROEU
ST124PRO / ST124PROGB / ST124PROEU
ST128PRO / ST128PROGB / ST128PROEU

Front View

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

Packaging Contents

• 1 x VGA Video Splitter

• 1 x Power Adapter

• 1 x Installation Guide

Rear View

System Requirements

• VGA enabled video source (i.e. computer, PVR/DVR, etc.)

• VGA enabled display device (i.e. monitor, projector, etc.)

• Available AC electrical outlet

Installation

1. With the video source device and display devices powered
o, connect a male/female DE-15 VGA cable from the ‘Input’
connector on the splitter to the VGA video output on the source
device.

2. Using high quality male/male DE-15 VGA cables, connect each
display device to the Video Output connectors on the splitter.

NOTE: Port 1 is the primary output so EDID information will be taken from
there. The capabilities of the display on Port 1 will be applied to all other

ports so be careful not to exceed the capabilities of the other displays.

3. Connect the included power adapter from an AC electrical outlet
to the video splitter. The ‘Power’ LED should light up solid.

4. Power on the connected display devices, followed by the video
source device. Once a valid video signal is sent to the splitter, the
‘Active’ LED should light up.

*8-Port ST128PRO shown

Cascaded Installation

The VGA video splitter can be cascaded/daisy-chained with
additional VGA video splitters for expanded capabilities, such as
more ports and reaching greater distances.

1. Make sure all displays and the video source device are turned o
before installing.

2. To cascade/daisy-chain multiple video splitters together, use a
male/female DE-15 VGA cable to connect any one of the Video
Out connectors on the primary splitter, to the ‘Input’ connector
on the secondary splitter.

3. A video splitter can be connected to each Video Out connector
on the primary splitter, if required.

4. Up to three (3) levels of cascading is supported, so connecting
another video splitter to the secondary splitter is possible,
allowing for up to 8 (ST122PRO), 64 (ST124PRO), or 512
(ST128PRO) video displays to be connected to a single source.

For the most up-to-date information, please visit: www.startech.com

Manual Revision: 03/28/2011

Specications

ST122PRO / ST122PROGB / ST122PROEU ST124PRO / ST124PROGB / ST124PROEU ST128PRO /ST128PROGB / ST128PROEU

Number of Ports

2 4 8

Video Signal

1 x DE-15 VGA male

Connectors

2 x DE-15 VGA female

1 x 5V DC Power

LEDs

Maximum Video Resolution

2048 x 1536 @ 80Hz 2048 x 1536 @ 80Hz 1920 x 1440 @ 80Hz

Maximum Cable Distance

Video Bandwidth

350 MHz (-3dB) 350 MHz (-3dB) 300 MHz (-3dB)

Audio Support

DDC Support

Operating Temperature

Humidity

Dimensions
(LxWxH)

Weight

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 of Trademarks, Registered Trademarks, and other Protected Names & 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.

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.

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,
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.

180.0mm x 85.0mm x 20.0mm 180.0mm x 85.0mm x 20.0mm 196.0mm x 70.0mm x 40.0mm

270g 300g 1150g

VGA (RGBHV )

1 x DE-15 VGA male

4 x DE-15 VGA female

1 x 5V DC Power

1 x Power

1 x Input Signal Detect

65 m / 213 ft

No

Yes

5°C ~ 40°C (41°F ~ 104°F)

0% ~ 80% RH

1 x DE-15 VGA male

8 x DE-15 VGA female

1 x 5V DC Power