StarTech.com ST121R User manual

VGA Video Extender

4-Port VGA over Cat5 Transmitter

ST1214T

ST121R

ST121EXT

Instruction Manual

VGA over Cat5 Receiver

VGA over Cat5 Extender

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 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.•

Use of Trademarks, 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.

Table of Contents

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

Packaging Contents.....................................................................1

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

ST1214T......................................................................................2

ST121R .......................................................................................2

ST121EXT...................................................................................3

Installation....................................................................... 4

Hardware Installation...................................................................4

Driver Installation.........................................................................7

Operation......................................................................... 7

Signal Equalizer Selector (ST121R, ST121EXT) ........................8

Wiring Diagram ............................................................... 8

Speciﬁcations.................................................................. 9

Technical Support........................................................... 10

Warranty Information...................................................... 10

Introduction

The StarTech.com Converge A/V VGA over Cat5 Video Extender

system is comprised of a transmitter unit (ST1214T) and a receiver

unit (ST121R) and optionally a repeater unit (ST121EXT). This video

extender system allows you to split and extend a single VGA source

signal to up to four separate remote locations. The VGA signal is

extended using standard Cat5 UTP cable, with a maximum distance of

up to 150m (492ft) or 300m (984ft) with a repeater.

Packaging Contents

1 x ST1214T Transmitter Unit•

1 x ST121R Receiver Unit

1 x ST121EXT Extender Unit

1 x Universal Power Adapter•

1 x Mounting Bracket kit (ST121R and ST121EXT only)•

1 x Instruction Manual•

System Requirements

VGA enabled video source and display•

Available power outlet at local and remote locations•

Both a Transmitter Unit and Receiver Unit(s)•

RJ45

output

RJ45

output

Power

Connector

VGA input

(male)

VGA output

(female)

Power

Connector

VGA output

(female)

RJ45

output

Signal Equalizer

switch

ST1214T

ST121R

VGA output

(female)

Power

Connector

Signal Equalizer

switch

RJ45

output

RJ45

input

ST121EXT

Installation

NOTE: To prevent potential electrical damage to the units in some

environments, ensure that the chassis is properly grounded.

Hardware Installation

The following instructions detail how ST1214T, ST121R and

ST121EXT can be used to extend a VGA signal to remote displays,

using a variety of different conﬁgurations.

ST1214T (local) and ST121R (remote)

Using the ST1214T, you can split the VGA signal from the source1.

into 4 separate VGA signals, for reception at remote locations (up to

150m (492ft) away).

Situate the ST1214T so that it is near your VGA video source as well2.

as an available power source.

Connect the ST1214T to the power source, using the power adapter3.

provided.

Connect the VGA video source to the VGA IN port on the ST1214T,4.

using a male-female VGA cable.

Situate the ST121R so that it is near the intended remote display(s)5.

and an available power source.

Connect the ST1214R to the power source using the power adapter6.

provided.

Using the Monitor Out ports, connect the ST121R to the display(s).7.

Please note that each remote unit can be connected to two separate

displays simultaneously. To connect two monitors, simply connect a

VGA cable from the second Monitor Out port to a second display.

Once the Transmitter and Receiver unit(s) have been positioned,8.

connect the Cat5 OUT ports provided by the transmitter unit

(ST1214T) to each receiver unit, using standard UTP cable, with

RJ45 connectors on each end.

The following diagram illustrates the connection between transmitter

(ST1214T) and receiver (ST121R) units.

ST1214T (local), ST121EXT (extender) and ST121R (Remote)

Using the ST1214T, you can split the VGA signal from the source into

4 separate VGA signals, for reception at remote locations. While the

maximum transmission distance of the ST1214T is 150m (492ft), using

ST121EXT as a signal repeater adds another 150m (492ft) to the total

transmission distance, for a total extension of 300m (984ft).

Situate theST1214T so that it is near your VGA video source as well1.

as an available power source.

Connect the ST1214T to the power source, using the power adapter2.

provided.

Connect the VGA video source to the VGA IN port on the ST1214T,3.

using a standard male-female VGA cable.

Situate the repeater unit (ST121EXT) up to 150m (492ft) away from4.

the ST1214T unit, ensuring that the repeater unit is able to connect

to an available power outlet.

VGA cable

Cat5 cables

(150m max)

VGA cables

Video Source

Remote

Displays

ST1214T

ST121R

Using a standard UTP cable with RJ45 terminators on each5.

end, connect the Cat5 OUT port provided by the transmitter

unit(ST1214T) to the Cat5 IN port provided by ST121EXT.

Connect the repeater unit (ST121EXT) to an available power outlet,6.

using the adapter provided.

Optional:7. You can connect two monitors directly to the repeater. To

do so, simply connect the monitors to the MONITOR OUT ports on

the repeater unit.

Repeat step 4 to 7 for each remote unit that will be used in8.

conjunction with a repeater (up to 4).

Situate the receiver unit (ST121R) up to 150m (492ft) away from the9.

repeater unit (ST121EXT), so that it is near the intended display(s)

as well as an available power source.

Connect the ST121R Receiver Unit to the power source using the10.

power adapter provided.

Using a standard UTP cable with RJ45 terminators on each end,11.

connect the Cat5 OUT port provided by the repeater (ST121EXT)

to the Cat5 IN port provided by ST121EXT.

Note: Each receiver unit can be connected to two separate displays

simultaneously. To connect two monitors, simply connect a VGA cable

from the second Monitor Out port to a second display.

The following diagram illustrates the connection between transmitter

(ST1214T) and receiver (ST121R) units, with the addition of a repeater

unit (ST121EXT). Please note that although only one repeater is used

in this illustration, up to four can be used simultaneously.

Driver Installation

No driver installation is required for this video extender as it is an

external hardware only solution, invisible to the computer system.

Operation

ST1214T, ST121EXT and ST121R all provide LED indicators, allowing

simple operating status monitoring. Once the power adapter has been

connected, the Power LED will become illuminated; similarly, when

the unit is in use (i.e. transmitting a video signal), the Active LED will

become illuminated.

Video Source

VGA cable

Cat5 cables

(max 150m)

Remote

Displays

ST1214T

ST121R

ST121EXT

ST121R

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