StarTech.com ST121R User manual

VGA Video Extender

4/8-Port VGA over Cat5 Transmitter

ST1214T / ST1218T

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/GB/EU..........................................................................2

ST121R/GB/EU ...........................................................................2

ST121EXT/GB/EU .......................................................................3

ST1218T ......................................................................................3

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

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

Driver Installation .........................................................................8

Operation ......................................................................... 8

Signal Equalizer Selector (ST121R/GB/EU, ST121EXT/GB/EU) 8

Wiring Diagram ............................................................... 9

Speciﬁcations .................................................................. 10

Technical Support ........................................................... 11

Warranty Information ...................................................... 11

Introduction

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

system is comprised of a transmitter unit (ST1214T/ST1218T) 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 or eight 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/GB/EU 4-port Transmitter Unit

1 x ST1218T 8-port Transmitter unit

1 x ST121R/GB/EU Receiver Unit

1 x ST121EXT/GB/EU Extender (Repeater) Unit

• 1 x Universal Power Adapter

• 1 x Mounting Bracket kit (ST121R/GB/EU, ST121EXT/GB/EU 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

input

Signal Equalizer

switch

ST1214T/GB/EU

ST121R/GB/EU

VGA output

(female)

Power

Connector

Signal Equalizer

switch

RJ45

output

RJ45

input

ST121EXT/GB/EU

RJ45 Output to

Receiver Units

RJ45 Output to

Receiver Units

Power

Input

VGA Input (male) VGA Output (female)

ST1218T

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, ST1218T, ST121R

and ST121EXT units can be used to extend a VGA signal to remote

displays, using a variety of different conﬁgurations.

ST1214T/ST1218T (local) and ST121R (remote)

1. Using the Transmitter Unit, you can split the VGA signal from the

source into 4/8 separate VGA signals, for reception at remote

locations (up to 150m (492ft) away).

2. Situate the Transmitter so that it is near your VGA video source as

well as an available power source.

3. Connect the Transmitter to the power source, using the power

adapter provided.

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

Transmitter, using a male-female VGA cable.

5. Situate the Receiver Unit so that it is near the intended remote

display(s) and an available power source.

OPTIONAL: with the optional mounting brackets (StarTech.com ID:

ST121MOUNT), any ST121 series receiver can be securely mounted

to a surface or the back of a VESA compliant ﬂat-panel display.

6. Connect the Receiver to the power source using the power adapter

provided.

7. Using the Monitor Out ports, connect the Receiver to the display.

Note that 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 to a second display.

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

connect the Cat5 OUT ports provided by the Transmitter unit to each

Receiver Unit, using standard UTP cable, with RJ45 connectors on

each end.

The following diagram illustrates the connection between Transmitter

and receiver units.

ST1214T/ST1218T (local), ST121EXT (extender), ST121R (Remote)

Using the Transmitter Unit, 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 Transmitter is 150m

(492ft), using the Extender Unit as a signal repeater adds another

150m (492ft) to the total transmission distance, for a total extension of

300m (984ft).

VGA cable

Cat5 cables

(150m max)

VGA cables

Video Source

Remote

Displays

ST1214T

ST121R

1. Situate the Transmitter Unit so that it is near your VGA video source

as well as an available power source.

2. Connect the Transmitter to the power source, using the power

adapter provided.

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

Transmitter, using a standard male-female VGA cable.

4. Situate the Extender Unit up to 150m (492ft) away from the

Transmitter unit, ensuring that the Extender Unit is able to connect to

an available power outlet.

OPTIONAL: with the optional mounting brackets (StarTech.com ID:

ST121MOUNT), any ST121 series receiver can be securely mounted

to a surface or the back of a VESA compliant ﬂat-panel display.

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

connect the Cat5 OUT port provided by the Transmitter Unit to the

Cat5 IN port provided by the Extender Unit.

6. Connect the Extender Unit to an available power outlet, using the

adapter provided.

7. OPTIONAL: You can connect two monitors directly to the Extender

Unit. To do so, simply connect the monitors to the MONITOR OUT

ports on the Extender Unit.

8. Repeat step 4 to 7 for each Receiver Unit that will be used in

conjunction with an Extender (up to 4).

9. Situate the Receiver Unit up to 150m (492ft) away from the Extender

Unit, so that it is near the intended display(s) as well as an available

power source.

10. Connect the Receiver Unit to the power source using the power

adapter provided.

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

connect the Cat5 OUT port provided by the Extender Unit to the

Cat5 IN port provided by Receiver Unit.

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

and Receiver units, with the addition of an Extender Unit. Please note

that although only one Extender is used in this illustration, up to four

can be used simultaneously.

Video Source

VGA cable

Cat5 cables

(max 150m)

Remote

Displays

ST1214T

ST121R

ST121EXT

ST121R

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