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.
i
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
1
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
or
1 x ST1218T 8-port Transmitter unit
or
1 x ST121R/GB/EU Receiver Unit
or
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)
2
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
3
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
4
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.
5
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
6
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.
7
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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