StarTech.com ST121UTP User manual

Installation Manual
ST121UTP
Video Extender
Category 5 UTP VGA/Multisync Video Extender

1
Overview
The ST121UTP Video Extender allows you to extend the distance between the computer
system unit and the display monitor by up to 130 meters (430 feet). This is accomplished
with a local transmitting unit and a remote receiving unit. The St121UTP is ideal for
factory and construction sites, or in any installation where the display needs to reside in
a harsh setting but you want the system equipment kept in an enviromentally friendly
location.
Features
• Extends video cables by up to 130m (430')
• Consists of 1 Base unit for the local display, and 1 Remote unit for the remote display
• Uses standard Category 5 straight-wired, twisted-pair, network patch cable for
economical and reliable data transmission
• Provides crystal clear picture quality
• 212MHz VGA bandwidth allows resolutions of up to 1600x1200 @ 85Hz refresh rate
• Supports VGA, SVGA, and Multisync monitors
• Includes VGA extension cable to connect the Base unit to the computer, and AC
power adapters
• No software required
Specifications
Getting Started
This section is designed to help you prepare the ST121UTP for installation. Please read
through this section carefully before attempting to install the card.
Connectors Input
Output
VGA Resolution
Signal Type
Cable Type
Max. Cable Distance
Weight
Dimensions
High Density DB15 Male
High Density DB15 Female,
RJ45 Female
640x480@60Hz to 130m (430’), 1600x1200@85Hz to 80m (262’)
LEDs Power
VGA, SVGA, Multisync
Category 5 shielded twisted pair (STP)
130m (430’)
240g
119x86x58mm (4.7x3.4x3.1")
235g
Power Consumption
Certifications
AC 9V 130mA (max.)
CE Mark, FCC Part 15
AC 9V 180mA (max.)
Local Unit Remote Unit
RJ45 Female
High Density DB15 Female

2
Unpacking the ST121UTP
This package should contain:
1 x Remote unit ST121UTP
1 x Local Unit ST121UTP
2 x 9V AC adapter
Installation
1. Make sure that the computer and monitors you are using for the installation are all
powered off.
2. Plug the male end of a male to female VGA extension cable into the computer’s video
output port; plug the female end of the cable into the Local unit’s PC port.
3. Plug the local monitor’s VGA cable into the Local unit’s Monitor port.
4. Plug one end of the power adapters into an AC source; plug the adapter’s power
cable into the Local unit’s AC 9V power jack.
5. Plug one end of the Category 5 twisted pair cable into the Local unit’s Remote I/O
port.
6. Slide the Range Switch to the Long position if the Remote unit is located a long
distance away; slide the switch to the Short position if the Remote unit is located a short
distance away.
8. Plug the remote monitor’s VGA cable into the Remote unit’s Monitor port.
9. Plug the second power adapter into an AC source; plug the adapter’s power cable
into the Remote unit’s AC 9V power jack.
10. Power on the computer and monitors.
Monitor
Long
Short
To Remote Unit
AC 9V
Power
For PC
UTP VGA Video Extender
ST121UTP
Local Unit
Monitor
To Remote Unit
AC 9V
Power
UTP VGA Video Extender
ST121UTP
Remote Unit
5
6
4
1
2
3
4
1
2
3
Local Unit
1. Range Switch
2. Remote I/O connector
3. AC 9V Power Jack
4. Power LED
5. Monitor connector
6. PC connector
Remote Unit
1. Remote I/O connector
2. AC 9V Power jack
3. Power LED
4. Monitor connector

Troubleshooting
No Video: Make sure that all cables are securely plugged into their sockets.
Technical Details
Cable Length Table
TP Pin Assignment
TP Wiring Diagram
800 x 600
640 x 480
1024 x 768
1280 x 1024
1600 x 1200
130 100
100 80
100
100
100
@ 60 Hz @ 75 Hz @ 85 Hz
Resolution Distance (m)
1
2
3
4
5
6
7
8
V OUT G
/V OUT G
V OUT R
/V OUT R
/V OUT B
GND
GND
AssignmentPin
V OUT B
12345678
Pair 1
Jack Positions
Pair 2 Pair 4
Pair 3
W-BR BROW-BLBLW-OGW-G
3