StarTech.com ST122VGA User manual

Manual Revision: 07/26/2013

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

ST122VGA

2-Port VGA Auto Switch w/ EDID Emulation

*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

Table of Contents

Product Diagram ....................................................................................1

Front View.................................................................................................................................................... 1

Rear View...................................................................................................................................................... 1

Introduction............................................................................................2

Packaging Contents ................................................................................................................................. 2

System Requirements.............................................................................................................................. 2

Installation ..............................................................................................2

Hardware Installation .............................................................................................................................. 2

Hardware Operation ................................................................................................................................ 2

Specications..........................................................................................5

Technical Support ..................................................................................6

Warranty Information............................................................................6

Instruction Manual

Product Diagram

Front View

1. VGA Input Port #1

2. VGA Input Port #2

3. P1 & P2 LED Indicators

Rear View

1. Power Adapter Port

2. Manual / Priority switch

3. VGA Output Port

4. Manual Select Switch

5. EDID Rotary Switch

Instruction Manual

Introduction

Packaging Contents

• VGA Video Switch

• Universal Power Adapter (NA/UK/EU)

• Instruction Manual

System Requirements

• 2 x VGA Video source devices (i.e. computer, Blu-ray Player)

• VGA enabled display device (i.e. television, projector)

• 3 x M/M VGA cables for 2 input devices, and 1 output device

Installation

Hardware Installation

Note: Before you begin installation please ensure the ST122VGA, and all video input

and output devices have been powered o.

1. Connect a M/M VGA Cable (not included) from the VGA Output Port on the

ST122VGA, to the VGA input port on your VGA enabled display device (i.e. television,

projector).

2. Connect a M/M VGA cable (not included) from each VGA enabled input device (up

to 2) to the VGA Input Ports on your video source devices (i.e. computer, Blu-ray

Player) to the Video Input Ports on the ST122VGA.

3. Connect the included power adapter from an available AC wall outlet to the Power

Adapter port on the ST122VGA.

4. Turn on the display device, followed by the video source devices.

Hardware Operation

1. Automatic Port Selection

By setting the “Manual / Priority Switch” to either “P1” or “P2”you can access the Auto

switch feature, allowing you to automatically switch between video sources simply by

turning o and on the devices connected to the prioritized ports.

Instruction Manual

When “P1” is selected,“VGA Input Port 1” will automatically be active when the device

connected is turned on, and automatically activate “VGA Input Port 2” when the device

is turned o.

When “P2” is selected “VGA Input Port 2” will automatically be active when the device

connected is turned on, and automatically activate “VGA Input Port 1 when the device

is turned o.

If the active VGA source is turned o, disconnected, or otherwise lost, the switch will

automatically select the next available VGA signal as the priority output. As a result it is

a good idea to prioritize the devices connected based on frequency of use. The device

used the most should be connected to the non-prioritized port.

For Example:

If you typically watch TV through your Cable or Satellite set top box, but sometimes

watch movies on your Blu-ray player. You can connect your set top box to “VGA Input

Port2” and select “P1” on the“Manual / Priority Switch”. Then connect your Blu-ray

player to “VGA Input Port 1”. When the Blu-ray player is turned on to watch a movie

the ST122VGA will automatically switch to the Blu-ray player. When the movie is over,

simply turn o your Blu-ray player and the ST122VGA will automatically switch back to

your set top box.

2. Manual Port Selection

By setting the “Manual / Priority Switch” to “Manual”, allowing you to manually switch

between video sources devices by using the “Manual Select Switch”.

a. Press the“Manual Select Switch” Button to switch between VGA input

devices 1 and 2.

b. The P1 & P2 LED Indicators will light as video sources are selected.

3. EDID Copy

EDID allows the video source to output the most ideal signal to the video display. The

“EDID Copy” function on the ST122VGA ensures that EDID is still active through the

switch. This function allows the system choose the best EDID signal from either of the

connected displays.

a. Set the “EDID Rotary Switch” on the side of the unit to 1.

b. Disconnect the monitor that does not have the EDID/DDC signal you desire, leaving

connected the monitor in which you’ve chosen to copy the EDID/DDC signal from.

c. Ensure the Power Adapter is connected to the AC Wall outlet to the Power

Adapter port.

Instruction Manual

0Auto

1User Recorded EDID (Manual)

21024 x 768

31280 x 720

41280 x 1024

51366 x 768

61440 x 900

71600 x 900

81600 x 1200

91680 x 1050

A1920 x 1080

B1920 x 1200

C1920 x 1440

D2048 x 1152

EReserved (1024 x 768)

FReserved (1024 x 768)

d. Press and hold the “Manual Select Switch” for 3 to 5 seconds until the LED

ashes green.

e. The LED ashes red and green alternately and then lights green indicating the

EDID/DDC copy was successful.

Note: If the LED lights red last, this indicates EDID copy failure. This means that the

monitor is not properly connected, the monitor is not powered on, or EDID/DDC data

is not available on that monitor. Repeat steps a) through c) once you’ve checked

connections, and ensured the monitor was powered on.

4. Manual EDID

For Displays that do not support EDID, you can manually set the EDID signal using the

rotary dial on the side of the unit. Manually turn the dial to match your desired output

resolution referencing the table below.

Instruction Manual

Specications

Ports 3

AV Input VGA

AV Output VGA

Maximum Digital Resolutions 1920x1200

Wide Screen Supported Yes

Universal Adapter Yes

Wall Plugs Included NA, EU, UK, AUS

Power Adapter Included Yes

Input Voltage 100~240V

Input Current 0.12 A

Output Voltage 5 DC V

Output Current 1 A

Instruction Manual

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.

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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