ST1214TEU - Network switch StarTech.com - Free user manual and instructions

Product Type	VGA over Cat5 Transmitter (4-port)
Model	ST1214TEU
Brand	StarTech.com
Dimensions	63.89 mm x 103.0 mm x 20.58 mm
Weight	246 g (8.7 oz)
Power Adapter Input	100-240 VAC, 50/60 Hz
Power Adapter Output	12 VDC, 1.5 A
Connectors	1 x DE-15 VGA male, 1 x DE-15 VGA female, 4 x RJ45 (Cat5 OUT), 1 x Power connector
Maximum Distance	150 m (492 ft) at 1024x768 resolution
Cable Type	Standard Cat5 UTP with RJ45 connectors (EIA/TIA 568B wiring)
Supported Resolution	Up to 1920x1440 (depending on cable length)
LED Indicators	Power (green), Active (green)
Driver Required	No driver required (external hardware solution)
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity (non-condensing)	10% to 85%
Included Accessories	1 x ST1214T transmitter, 1 x Universal Power Adapter, 1 x Instruction Manual
Mounting	Optional mounting brackets (ST121MOUNT) for surface or VESA mount
Warranty	1 year
FCC Compliance	Class B digital device, Part 15

Frequently Asked Questions - ST1214TEU StarTech.com

What is the maximum distance I can extend VGA using the ST1214TEU transmitter?

The maximum distance is 150 meters (492 feet) at a resolution of 1024x768 using standard Cat5 UTP cable.

Do I need to install drivers for this device?

No, the ST1214TEU is an external hardware-only solution and requires no driver installation. It is invisible to the computer system.

What type of cable should I use between the transmitter and receiver?

Use standard Cat5 unshielded twisted pair (UTP) cable with RJ45 connectors wired according to EIA/TIA 568B standard. Maximum length 150 m.

Can I connect multiple receivers to one ST1214TEU transmitter?

Yes, the ST1214TEU has 4 RJ45 outputs allowing connection to up to 4 separate receiver units (ST121R) for multi-display setups.

What is the power requirement for the transmitter?

The transmitter uses a 12 VDC, 1.5 A power adapter (included). Ensure the power outlet is accessible near the unit.

How do I adjust the video signal quality for long cable runs?

On the receiver unit (ST121R), use the Signal Equalizer Selector switch. Set according to cable length: position 1 for 0-40 m, 2 for 40-80 m, 3 for 80-120 m, 4 for 120-160 m.

Can I extend the distance beyond 150 meters using additional equipment?

Yes, you can add the ST121EXT extender (repeater) unit to increase total distance to 300 meters (984 feet) when combined with the transmitter.

What resolutions does the ST1214TEU support?

It supports resolutions up to 1920x1440, but maximum distance may be reduced at higher resolutions. 1024x768 is guaranteed at 150 m.

Is the device compatible with VGA sources and displays?

Yes, it works with any standard VGA-enabled video source and display using a male-female VGA cable to connect the source to the transmitter.

What do the LED indicators on the transmitter mean?

The Power LED lights when power is connected. The Active LED lights when a video signal is being transmitted.

USER MANUAL ST1214TEU StarTech.com

ST1214T / ST1214TGB / ST1214TEU ST1218T ST121R / ST121RGB / ST121REU ST121EXT / ST121EXTGB / ST121EXTEU Instruction Manual

VGA Video Extender

4/8-Port VGA over Cat5 Transmitter

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 • 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)•

ST1214T/GB/EU

ST121R/GB/EU

ST121EXT/GB/EU

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)

Using the Transmitter Unit, you can split the VGA signal from the 1. source into 4/8 separate VGA signals, for reception at remote locations (up to 150m (492ft) away).

Situate the Transmitter so that it is near your VGA video source as 2. well as an available power source.

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

Connect the VGA video source to the VGA IN port on the 4. Transmitter, using a male-female VGA cable.

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

Interior view of a computer monitor with cables and connectors (no visible text or symbols)

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

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

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

graph TD
    A["ST1214T"] -->|VGA cable| B["Cat5 cables (150m max)"]
    A --> C["ST121R"]
    A --> D["VGA cables"]
    C --> E["Remote Displays"]
    D --> E

Video Source

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).

Situate the Transmitter Unit so that it is near your VGA video source 1. as well as an available power source.

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

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

Transmitter, using a standard male-female VGA cable.

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

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.

Interior view of a computer monitor case showing cable routing and ventilation system (no visible text or symbols)

Using a standard UTP cable with RJ45 terminators on each end, 5. connect the Cat5 OUT port provided by the Transmitter Unit to the Cat5 IN port provided by the Extender Unit.

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

OPTIONAL:7. 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.

Repeat step 4 to 7 for each Receiver Unit that will be used in 8. conjunction with an Extender (up to 4).

Situate the Receiver Unit up to 150m (492ft) away from the Extender 9. Unit, so that it is near the intended display(s) as well as an available power source.

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

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

graph TD
    A["ST121R"] --> B["ST121EXT"]
    B --> C["ST1214T"]
    C --> D["VGA cable"]
    D --> E["Video Source"]
    F["ST121R"] --> G["Remote Displays"]
    H["ST1214T"] --> I["Cat5 cables (max 150m)"]
    I --> J["Computer"]
    K["Computer"] --> L["Computer"]
    M["Computer"] --> N["Computer"]

Driver Installation

No driver installation is required for this video extender as it is an external hardware only solution, invisible to the computer system.

Operation

ST1214T/ST1218T, 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 video signal), the Active LED will become illuminated.

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

The Signal Equalizer Selector on the Receiver and Extender Units can be adjusted to obtain the optimal video signal for various cable lengths. There are four settings on the selector switch, indicating cables of different lengths. The following table can be used as a reference for selecting the appropriate setting:

CAT5 cable length		Equalizer position
meter	feet
0 ~ 40	0 ~ 131
40 ~ 80	131 ~ 262
80 ~ 120	262 ~ 394
120 ~ 160	394 ~ 525

Wiring Diagram

The Video Extenders requires an unshielded twisted pair Cat5 cable no longer than 150m (492ft). The cable must be wired according to the EIA/TIA 568B industry standard as shown below.

Pin Wire Color Pair
1 White/Orange 2
2 Orange 2
3 White/Green 3
4 Blue 1
5 White/Blue 1
6	Green	3
7 White/Brown 4
8	Brown	4

Specifications

	ST1214TST1214TGBST1214TEU	ST1218T
Connectors	1 x DE-15 VGA male1 x DE-15 VGA female4 x RJ451 x Power Connector	1 x DE-15 VGA male1 x DE-15 VGA female8 x RJ451 x Power Connector
LEDs	Power, Active
Maximum Distance	150m (492 ft) @ 1024x768
Power Supply	12VDC, 1.5A
Dimensions	63.89mm x 103.0mm x 20.58mm	180.0mm x 85.0mm 20.0mm
Weight	246g 1300g

	ST121RST121RGBST121REU	ST121EXTST121EXTGBST121EXTEU
Connectors	2 x DE-15 VGA female1 x RJ451 x Power Connector	2 x DE-15 VGA female2 x RJ451 x Power Connector
LEDs	Power, Active
Power Supply	12VDC, 1.5A
Dimensions	84.2mm x 65.0mm x 20.5mm	64.0mm x 103.0mm x 20.6mm
Weight	171g 204g

Technical Support

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.

Warranty Information

These products are 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.

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