StarTech.com ST122UTPA User manual

Video Extender

ST121UTP (without Audio)

ST122UTPA (with Audio)

Instruction Manual

ST122UTPA shown

Actual product may vary from photo

Ethernet VGA Signal Extender for Distances up to 500 feet (150 m)

Ethernet VGA + Audio Signal Extender for Distances up to 500 feet (150 m)

ST122UTPA.qxd 6/20/2006 2:18 PM Page 1

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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 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.

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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.

ST122UTPA.qxd 6/20/2006 2:18 PM Page 2

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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Connecting Your Signal Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Preparing Your Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installing the Local Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Installing the Remote Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Accessory Products from StarTech.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Instruction Manual

ST122UTPA.qxd 6/20/2006 2:18 PM Page i

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Thank you for purchasing a StarTech.com UTP signal extender. This product allows you

to extend the range of a signal source (usually a computer) up to 500 feet (150 meters)

using industry-standard Ethernet cabling. You can have two displays at both the local

and remote location, with little or no loss of image quality. Perfect for classrooms,

meeting areas, houses of worship, and any other application that would benefit from a

comprehensive multimedia sharing solution.

FFeeaattuurreess

• Reliably extends VGA (ST121UTP) or VGA and audio signals (ST122UTPA) to a

remote location up to 500 feet (150 meters) from a local source.

• Easy installation using standard Category 5 unshielded twisted pair (UTP) cabling.

• A completely hardware-based solution: no software or drivers required.

• Includes a unique Equalizer feature that optimizes image quality based on the cable

length.

• Built-in splitter allows a total of four displays from one VGA source: two local, and

two at the remote location.

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System Requirements

• 1 high-quality male-to-male HD-15 VGA cable (not provided)

StarTech.com part number: MXT101HQ

• ST122UTPA only: 1 high-quality male-to-male headphone audio cable (not provided)

StarTech.com part number: MU6MM

• Unshielded Category 5 twisted pair (UTP) straight-through Ethernet cable

terminated at each end with RJ-45 connectors (if using surface cabling)

• Unshielded Category 5 twisted pair (UTP) straight-through Ethernet cable

terminated at each end in a wall-mounted outlet, with a standard Category 5 patch

cable, at both locations (if using premises cabling)

Do you need cables? Visit www.startech.com to find what you need and the name of a

StarTech.com dealer.

NOTE: The total length of cable between the Local and Remote Units cannot exceed 500

feet (150 meters), including patch cables (if used). Category 5e and 6 cabling is

compatible with this product and may improve performance.

NOTE: Long cable lengths between the Local and Remote Units may adversely affect

Instruction Manual

ST122UTPA.qxd 6/20/2006 2:18 PM Page 1

image quality at high resolutions and refresh rates. If you need to run your remote

displays at high resolutions and frequencies, use as little Ethernet cabling between

locations as possible and avoid practices such as “coiling” unused cable in a ceiling or

behind the display.

Contents

This package should contain:

1 x Local Unit (transmitter)

1 x Remote Unit (receiver)

2 x Power adapter

1 x Instruction Manual

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This product is composed of two different units: the Local Unit and the Remote Unit. The

Local Unit takes the output from a VGA (and audio, if you purchased ST122UTPA) signal

source (usually a computer) and transmits it to the Remote Unit over Category 5

Ethernet cable. The remote displays (monitor, projector) connect to the Remote Unit

using standard VGA and headphone audio connections (if desired) and displays the

image from the local computer on the remote displays.

Preparing Your Site

Before you can install the the product, you need to prepare your site.

1: Determine where the local computer will be located and set up the computer.

2: Determine where the remote display(s) will be located and place/mount them

appropriately.

3a: If you are using surface cabling, ensure you have enough Category 5 unshielded

twisted pair (UTP) Ethernet cabling to connect the Local Unit to the Remote

Unit’s location, and that each end is terminated with a RJ-45 connector.

3b: If you are using premises cabling, ensure that the Category 5 unshielded twisted pair

(UTP) Ethernet Cabling between the Local Unit and the Remote Unit has been

properly terminated in a wall outlet in each location and there is a

patch cable long enough to connect the Remote Unit and the Local Unit to

their respective outlets.

Instruction Manual

ST122UTPA.qxd 6/20/2006 2:18 PM Page 2

Note: ST122UTPA shown: ST121UTP does not have audio support.

Installing the Local Unit

1: Place the Local Unit near the local computer.

2: Switch off the computer and disconnect any existing VGA and audio connections.

3: If desired, connect the data cable from the local computer display(s) to the video out

ports (marked with a monitor symbol) on the Local Unit. This will enable you to see

video locally while an image is transmitted to the remote display. You may choose to

connect up to two local displays, one for each video out port.

4: Connect a a male-to-male HD-15 VGA cable (not provided) to the VGA Out

port on the local computer. Connect the opposite end to the VGA IN port on the

Local Unit.

5. Connect a male-to-male headphone audio cable to the Speaker Out port on the local

computer. Connect the opposite end to the AUDIO IN port on the Local Unit.

(ST122UTPA only.)

6: Connect the Ethernet cable connection for Remote Unit to the Cat5 OUT RJ-45

connector on the Local Unit.

7: Connect the power adapter (provided) into an appropriate power source and plug the

opposite end into the power connector on the Local Unit. The POWER LED will

light.

8: If you wish to use local displays and speakers, connect them to the MONITOR 1/2 and

AUDIO 1/2 ports (for ST122UTPA) on the unit.

Instruction Manual

Power

Network Video In

Local Video Out (2)

Local Audio 1 Local Audio 2

ST122UTPA.qxd 6/20/2006 2:18 PM Page 3

Note: ST122UTPA shown: ST121UTP does not have audio support.

Installing the Remote Unit

1: Connect the Remote Unit to the Ethernet cable connection from the Local Unit,

marked Cat5 IN.

2: Connect the data cable from the display(s) to the opposite side of the Remote Unit,

marked MONITOR 3 and 4(see above). You may choose to have either one or two

displays at the remote location connected to the Remote Unit.

3: Connect one or two sets of speakers to the AUDIO 3 and AUDIO 4 ports, if desired.

(ST122UTPA only.)

4: Connect the power adapter (provided) into an appropriate power source and plug the

opposite end into the power connector on the Remote Unit. The POWER LED will

light.

CAUTION: The Category 5 Ethernet cables that connect the Local and Remote Units

carry electrical current and should not be plugged in to other devices, as they may cause

damage. We strongly recommend marking the Ethernet cables you are using with this

product at both locations for easy identification.

Completing the Installation

1: Switch on the local computer and local

display(s) (if used).

2: Switch on the display(s) at the remote

location.

3: Verify that the remote display is properly

displaying the image from the local

computer connected to the Local Unit.

4: Use the Signal Equalizer to improve the image on the remote display(s) based on the

approximate length of Ethernet cable between the Local and Remote Units.

Instruction Manual

Power

Network

Remote Audio 1

Remote Video Out (2)

Remote Audio 2

Signal Equalizer

Signal Equalizer Settings

ST122UTPA.qxd 6/20/2006 2:18 PM Page 4

Troubleshooting

The following section provides troubleshooting help. The solutions are arranged in the

order they should be attempted in most situations. If you continue to have difficulties

after attempting the solutions in this section, please contact StarTech.com technical

support using any of the methods on page 8.

Symptom: The remote displays are black or display a “no signal”

message.

Cause: The Remote Unit is not receiving a signal from the Local Unit.

Remedy: (1) Check that the display is receiving power and that all cables are connected.

(2) Check that the display is connected to the Remote Unit.

Symptom: The remote displays do not display an image when the local

computer wakes up from Standby Mode.

Remedy: Power the remote displays OFF and ON again.

Symptom: One or more remote displays is distorted, noisy, or displays a “signal error”

or similar error message.

Cause: The screen resolution and/or refresh rate on the local computer may be set too

high for the capabilities of the remote display.

Remedy: (1) Adjust the local computer to a lower resolution and refresh rate until the

remote display shows an image.

(2) Gradually increase the resolution and refresh rate on the local computer

until the remote displays ceases to display an image.

(3) Return the resolution and refresh rate on the local computer to the highest

resolution and refresh rate setting that displayed an image on the remote

display.

(4) Adjust the Signal Equalizer on the Remote Unit for best performance.

NOTE: If you are still unable to see an image at the remote location after trying the

above solutions, it is recommended that you verify the Ethernet cable installation to the

remote display before calling technical support. This can be used using a standard cable

tester. If you do not have a cable tester, contact a local computer service or wiring

professional.

Instruction Manual

ST122UTPA.qxd 6/20/2006 2:18 PM Page 5

Specifications

Instruction Manual

Maximum Resolution 1024 x 768 (at maximum Ethernet cable length)

Actual maximum resolution varies by Ethernet cable length

Maximum Range 500 feet (150 meters)

Ethernet Cabling Type Straight-through Unshielded Twisted Pair (UTP) Cat. 5+

Connectors Local Unit

1 x HD-15 male VGA (video in)

1 x 3.5mm phono female (audio in) ST122UTPA only

1 x RJ-45

2 x HD-15 female VGA (video out)

2 x 3.5mm phono female (audio out) ST122UTPA only

1 x Power

Remote Unit

2 x HD-15 female (video out)

2 x 3.5mm phono female (audio out) ST122UTPA only

1 x RJ-45

1 x Power

LED Indicators 1 x Power (green)

1 x Activity (yellow)

Power Adapter 2 x 9v, 600mA, center positive (one per Unit)

ST122UTPA.qxd 6/20/2006 2:18 PM Page 6

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Contact your local StarTech.com dealer or visit www.startech.com for cables or other

accessories that will help you get the best performance out of your new product.

25 ft Blue Snagless Category 5e (350 MHz) UTP Patch Cable

RJ45PATCH25

35 ft Blue Snagless Category 5e (350 MHz) UTP Patch Cable

RJ45PATCH35

50 ft Blue Snagless Category 5e (350 MHz) UTP Patch Cable

RJ45PATCH50

75 ft Blue Snagless Category 5e (350 MHz) UTP Patch Cable

RJ45PATCH75

100 ft Blue Snagless Category 5e (350 MHz) UTP Patch Cable

RJ45PATCH100

(other colors and lengths available)

6 ft. Coax SVGA Monitor Cable HDDB15M/M

MXT101MMHQ

25 ft. Coax SVGA Monitor Cable HDDB15M/M

MXT101MMHQ25

50 ft. Coax SVGA Monitor Cable HDDB15M/M

MXT101MMHQ50

15 ft. Coax SVGA Monitor Extension Cable HDDB15M/F

MXT105HQ

15 ft. Coax SVGA Monitor Cable HDDB15M/M

MXT105MMHQ

Instruction Manual

ST122UTPA.qxd 6/20/2006 2:18 PM Page 7

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