StarTech.com ST1214T User manual

VGA over Cat5 UTP Extender
ST1214T
ST121R
ST121EXT
Instruction Manual
Actual product may vary from photo
VGA over Cat5 UTP Transmitter
VGA over Cat5 UTP Receiver
VGA over Cat5 UTP Extender

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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.

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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
ST1214T (local) and ST121R (remote) . . . . . . . . . . . . . . . . . . . . . . . .2
ST1214T (local), ST121EXT (repeater) and ST121R (remote) . . . . . .3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Equalizer selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Instruction Manual
i

Instruction Manual
1
Thank for purchasing a StarTech.com Converge A/V VGA over Cat5 Video Extender.
Comprised of both the ST1214T (local unit), ST121R (remote unit), and optionally
ST121EXT (repeater), this video extender system allows you to split and extend a single
VGA source signal into up four separate signals, that can then be received by individual
receivers, for use with remotely located displays.
The VGA signal is extended from local to remote units using standard CAT 5 UTP cable,
with a maximum extension distance between local and remote units of up to 150m (500’)
or 300m (1000’)(with repeater)- providing a practical, cost effective way to extend your
VGA signal without any signal degradation or loss of pircture quality.
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Features
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•Extends video cables by up to 500 ft. (150m)
•Pure hardware design, no software or drivers required
•Supports VGA, SVGA, and Multisync monitors
•Uses standard Category 5 straight-wired, twisted-pair, network patch cable for
economical and reliable data transmission
•Cat 5 cable - for connection(s) between transmitter unit, repeater and receiver
unit(s)
System Requirements
•VGA Signal source
•An available power outlet for each unit used
•Up to two VGA displays per receiver unit used
•1 X VGA Extender unit (ST1214T: local), (ST121R: remote) or (ST121EXT: repeater)
Package Contents
•1 X 9V AC 500ma Adapter
•1 x Instruction Manual
This package should contain:

Instruction Manual
2
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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)
1. a) Situate ST1214T so that it is near your VGA video source as well as an available
power source.
b) Connect ST1214T to the power source, using the power adapter provided.
c) Connect the VGA video source to the VGA IN port on ST1214T, using a standard
VGA cable.
2. a) Situate ST121R so that it is near the intended display(s) and an available power
source.
b) Connect the ST1214R to the power source using the power adapter provided.
c) Using the VGA OUT ports provided, connect ST121R to the displays. Please note
that each remote unit can be connected to two displays simultaneously; if you wish
to connect two monitors, simply repeat the VGA connection to an additonal display.
Using ST1214T, you can split the VGA signal from the source into 4 separate VGA
signals, for reception at remote locations (up to 150m / 500’ away).
3. Once the Local and Remote units have been positioned, connect the Cat5 OUT ports
provided by the local unit (ST1214T) to each remote unit, using standard UTP cable,
with RJ45 connectors on each end.
ST121R
ST121R
ST121R
ST121R
ST1214T
VGA Cable
CAT5 Cable
< Up to 150m >
<Up to 150m >
< Up to 150m >
Up to 150m
Power
connection
required
VGA Source

Instruction Manual
3
ST1214T (local), ST121EXT (extender) and ST121R (Remote)
Using 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
ST1214T is 150m (500’), using ST121EXT as a signal repeater adds 100m / 328’ to the
total transmission distance, for a total extension of 250m/828’.
1. a) Situate ST1214T so that it is near your VGA video source as well as an available
power source.
b) Connect ST1214T to the power source, using the power adapter provided.
c) Connect the VGA video source to the VGA IN port on ST1214T, using a standard
VGA cable.
2. a) Situate the repeater unit (ST121EXT) up to 150m (500’) away from the ST1214T
unit, ensuring that the repeater unit is able to connect to an available power outlet.
b) Using a standard UTP cable with RJ45 terminators on each end, connect the Cat5
OUT port provided by the local unit(ST1214T) to the Cat5 IN port provided by
ST121EXT.
c) Connect the repeater unit (ST121EXT) to an available power outlet, using the
adapter provided.
Optionally, you can connect two monitors directly to the repeater. To do so, simply
connect the monitors to the VGA OUT ports (denoted by monitor symbols) provided by
the repeater unit.
3. Repeat step 2 for each remote unit that will be used in conjunction with a repeater (up
to 4).
4. a) Situate the remote unit (ST121R) up to 150m (500’) away from the repeater
(ST121EXT) unit, so that it is near the intended display(s) as well as an available
power source.
b) Connect the ST121R Remote Unit to the power source using the power adapter
provided.
c) Using a standard UTP cable with RJ45 terminators on each end, connect the Cat5
OUT port provided by the repeater (ST121EXT) to the Cat5 IN port provided by
ST121EXT.
Please note that each remote unit can be connected to two displays simultaneously; if
you wish to connect two monitors, simply repeat the VGA connection to an additonal
display.
Please see page 4 for a detailed connectivity diagram.

Instruction Manual
4
Power
connection
required
VGA Cable
CAT5 Cable
< Up to 150m >
< Up to 150m >
^
Up to 150m
V
^
Up to 100m
v
The following diagram illustrates the connection between local (ST1214T) and remote
(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.
< Up to 150m >
ST1214T
ST121EXT
ST121R
ST121R
ST121R
ST121R
VGA Source

Instruction Manual
5
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 signal), the Active
LED will become illuminated.
Equalizer selector
ST121EXT and ST121R feature a signal equalizer that helps to optimize video signals
based on the attached cable length. Adjust this feature using the switch, located on the
front panel marked as Signal Equalizer, in accordance with the following distances:
CAT5 Cable Length Equalizer
Position
Meter Feet
0 - 40 0 - 131
40 - 80 131 - 262
80 - 120 262 - 394
120 - 160 394 - 525

Instruction Manual
6
VGA CAT5 Extender ST1214T ST121R ST121EXT
Maximum
transmission distance 150m (@1024 x 768) 150m (@1024 x 768) 70 - 100m (@1024 x 768)
VGA Input Ports 1 x HDB15 (male) N/A N/A
VGA Output Ports 1 x HDB15 (female) 2 x HDB15 (female) 2 x HDB15 (female)
CAT5 Input Ports N/A 1 1
CAT5 Output Ports 4N/A 1
Operating voltage 9V DC, 600mA
Status Indicator Power (green) x 1
Active (yellow) x 1
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Instruction Manual
7
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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.
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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
officers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of profits, 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.

Revised: 2 April 2007 (Rev. A)
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