StarTech.com ST1212T User manual

Manual Revision: 10/05/2011
For the most up-to-date information, please visit: www.startech.com
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
ST1212T
2 Port VGA Extender over Cat5
*actual product may vary from photos

Instruction Manual
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
o 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 dierent 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.

Instruction Manual i
TableofContents
Introduction............................................................................................1
PackagingContents................................................................................................................................. 1
SystemRequirements.............................................................................................................................. 1
View1............................................................................................................................................................ 2
View2............................................................................................................................................................ 2
Preparing Your Site ................................................................................3
Installation ..............................................................................................4
HardwareInstallation.............................................................................................................................. 4
DriverInstallation...................................................................................................................................... 5
Operation ................................................................................................5
Wiring Diagram ......................................................................................6
Specications..........................................................................................7
Technical Support ..................................................................................8
Warranty Information............................................................................8

Instruction Manual 1
Introduction
TheST1212T2PortVGAVideoExtenderoverCat5isdesignedforusewithour
ST121VGAoverCat5extensionseries,oeringconvenientVGAvideodistributionat
distancesofupto492feet(150meters)usingstandardCat5(orbetter)cabling.
Comprisedofthetransmitterunitonly,theST1212TrequiresoneReceiverUnit
(ST121R)perdisplaythatyouareconnecting.
Foraddedversatility,theVGAoverCat5Repeater(ST121EXT)canbeusedtoextend
thedistancebetweenthetransmitterandreceiverbyanadditional492-feet(150
meters),foratotaldistanceof984-feet(300meters).Similarly,upto3repeaterunits
canbeusedbetweentransmitterandreceiver,enablingyoutoconnectmonitorsat
eachrepeater,whilestillextendingthetotaldistance.
Packaging Contents
• 1xVGAoverCat5VideoTransmitter
• 1xSetofrubberfeet
• 1xUniversalPowerAdapter(NA/UK/EU)
• 1xInstructionManual
System Requirements
• VGAenabledvideosourcedevice(e.g.computer,PVR/DVR,etc.)
• VGAenableddisplaydevice(e.g.monitor,projector,HDTV,etc.)
• VGAcablingtoconnectvideosourceanddisplay(s)
• VGAoverCat5Receivermodule-StarTech.com ID:ST121R(soldseparately)
• AvailableACelectricaloutletattransmitterandreceiverlocations

Instruction Manual 2
View 1
View 2
Power LED
Active LED
VGA connector
(input)
VGA connector
(output)
RJ45 connectors
(output)
DC Power connector

Instruction Manual 3
PreparingYourSite
1. Determinewherethelocalvideosource(i.e.computer,PVR/DVR)willbelocatedand
physicallysetupthevideosourcedevice.
2. Determinewheretheremotedisplay(s)willbelocatedandplace/mountthe
display(s)appropriately.
Please notethatbothextenderunits(transmitter/receiver)willrequireapower
connection,sopleaseensurethateachunitwillbesituatednearanavailableelectrical
outlet.
3. Ifyouareusingsurfacecabling,ensureyouhaveenoughCat5unshieldedtwisted
pair(UTP)EthernetcablingtoconnecttheTransmitterUnittotheReceiverUnit’s
location,andthateachendisterminatedwithaRJ45Ethernetconnector.The
cablingshouldnotgothroughanynetworkingequipment(i.e.router,switch).
OR
Ifyouareusingpremisecabling,ensurethattheCat5unshieldedtwistedpair(UTP)
EthernetCablingbetweentheTransmitterUnitandtheReceiverUnithasbeen
properlyterminatedinawalloutlet/panelineachlocationandthereisapatch
cablelongenoughtoconnecttheReceiverUnitandtheTransmitterUnittotheir
respectiveoutlets.Thecablingshouldnotgothroughanynetworkingequipment
(i.e.router,switch).

Instruction Manual 4
Installation
ATTENTION!
For the best results, please ensure the video extender units and any
display equipment are properly grounded. Improper grounding may
result in signal noise or potential damage to the extender units.
Hardware Installation
ST1212T
ST121R
1. Turnothevideosource(i.e.computer)andtheintendeddisplaydevices(i.e.
monitors).
2. PositiontheST121RReceiverUnit(s)(soldseparately)neartheintendedremote
display(s).
OPTIONAL:withtheoptionalmountingbrackets(StarTech.com ID: ST121MOUNT),
anyST121seriesreceivercanbesecurelymountedtoawallorothersurface.
*installation photos are for reference only
3. PositiontheST1212TTransmitterUnitnearthevideosource.
4. Connectthevideosourcetothe“Input”maleVGAconnectorontheTransmitter
Unit,usingastandardVGAmale/femalecable.Alocaldisplaycanbeconnectedto
the“MonitorOut”VGAconnectorontheTransmitterUnit.

Instruction Manual 5
5. Connecttheremotedisplay(s)tothe“MonitorOut”portslocatedontheReceiver
UnitusingaVGAmale/malecable.EachReceiverUnitsupportstwomirrored
(identical)VGAoutputs.
6. ConnecttheTransmitterUnittoeachReceiverUnit,usingstandardRJ45terminated
Cat5cable(see“PreparingYourSite”).
OPTIONAL:IfusingtheST121EXTExtenderUnit(s),thedistancebetweenthe
TransmitterandReceiverunitscanbeextendedbyuptoanadditional150m/492ft.
TheST121EXTalsosupports2VGAoutputsandrequiresanACelectricaloutlet.
7. Connectthepoweradapters(provided)tobothTransmitterandReceiverUnits.
8. Turnonthedisplaydevicerst,followedbythevideosource.
Driver Installation
Nodriverorsoftwareinstallationisrequiredonthevideosourcedevice.
Operation
TheST1212Tprovides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.

Instruction Manual 6
WiringDiagram
TheUTPcablemustbewiredaccordingtotheEIA/TIA568Bindustrystandardas
shownbelow.
Pin Wire Color Pair
1White/Orange 2
2Orange
3 White/Green 3
4Blue 1
5White/Blue
6Green 3
7White/Brown 4
8 Brown

Instruction Manual 7
Specications
Video Signal VGA(RGBHV)
External Connectors
1xDE-15VGAfemale
1xDE-15VGAmale
2xRJ45Ethernetfemale
1xDCPower
LEDs 1xPower
1xActive/Link
Supported Video Resolutions
1600x1200@50m/150ft
1280x1024@100m/300ft
1024x768@150m/492ft
Maximum Cable Length 150m/492ft@1024x768
Power Adapter 9V~12VDC,600mA,centerpositive
Enclosure Material Metal
Operating Temperature 0°C~40°C(32°F~104°F)
Storage Temperature -10°C~60°C(14°F~140°F)
Humidity 0%~80%RH
Dimensions 102.0mmx60.0mmx20.0mm
Weight 200g