StarTech.com ST1218T User manual

ST1218T

VGA over Cat5 UTP Extender

- 8 Port

FCC Compliance Statement

This equipment has been tested and found to comply with the limits for a Class B digital de-

vice, 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 endorse-

ment 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 acknowl-

edgement 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

Table of Contents

Introduction ................................................................................... 1

Features ......................................................................................1

Package Contents .......................................................................1

Product Description ...................................................................... 2

Front Panel ..................................................................................2

Rear Panel...................................................................................2

Hardware Installation .................................................................... 3

Installing the ST1218T Transmitter Unit.......................................3

Installing the ST121R Receiver Units (not included) ...................3

Driver Installation .......................................................................... 3

Cat5 Cable ...................................................................................... 4

Operation........................................................................................ 5

LED..............................................................................................5

Equalizer Selector (ST121R, ST121EXT) ...................................5

Speciﬁcations ................................................................................ 6

Troubleshooting............................................................................. 7

Technical Support ......................................................................... 8

Warranty Information .................................................................... 8

Instruction Manual

Introduction

Thank you for purchasing the StarTech.com ST1218T VGA over Cat5

UTP Extender - 8 Port. The Converge A/V VGA over Cat5 video extender

allows you to connect up to eight remote displays directly from one video

source. The video signal is sent to remote monitors over standard Cat5

UTP cable using RJ45 connectors and supports distances of up to 150m

(492ft). The ST1218T requires the ST121R remote receivers or the

ST121EXT repeater/extender to connect additional displays in between

the Transmitter (ST1218T) and Receiver (ST121R).

Allow Converge A/V to provide you with digital signage solutions.

Applications include airports, bus depots, retail, or any large buildings

where video needs to be delivered at long distances.

Features

Consists of 1 Base unit (Transmitter) for distributing 8 remote displays•

through Cat5 and two local VGA displays

Extends video cables by up to 492 ft. (150m)•

Provides crystal clear picture quality•

Pure hardware design, no software or drivers required and easy to•

install

Supports VGA, SVGA, and Multisync monitors•

Use repeaters along your path to connect additional displays or to•

connect directly to a remote display

Package Contents

1 x ST1218T Transmitter Unit•

1 x Universal Power Adapter•

1 x Instruction Manual•

Instruction Manual

Product Description

Front Panel

Rear Panel

RJ45 Output to

Receiver Units

RJ45 Output to

Receiver Units

Power

Input

VGA Input (male) VGA Output (female)

Instruction Manual

Hardware Installation

Installing the ST1218T Transmitter Unit

Place the Transmitter Unit near the local (source) computer.1.

Switch off the computer and disconnect any existing VGA cables.2.

If desired, connect the VGA cable from the local computer display(s) to3.

the female DE-15 VGA ports on the Transmitter Unit. This will enable

you to see video locally while an image is transmitted to the remote

display. You may choose to connect up to two local displays, one for

each “Monitor” port. Both outputs display the same image.

Connect a male-to-female DE-15 VGA cable (not provided) to the VGA4.

output on the local computer. Connect the opposite end to the VGA IN

port on the Transmitter Unit.

Connect each Cat5 cable connection to the “CAT5 OUT” ports on the5.

Transmitter Unit.

Connect the Power Adapter (provided) into an appropriate power6.

source and plug the opposite end into the power connector on the

Transmitter Unit. The POWER LED will light up.

NOTE: To prevent potential electrical damage to the unit in some

environments, ensure that the chassis is properly grounded.

Installing the ST121R Receiver Units (not included)

Connect the opposite end of the Cat5 cable from the Transmitter Unit to1.

the “CAT5 IN” port on the ST121R Receiver Units.

Adjust the Signal Equalizer switch setting to the appropriate length of2.

Cat5 cable used (see documentation included with St121R).

Connect the Power Adapter provided with the ST121R into an3.

appropriate power source and plug the opposite end into the power

connector on the ST121R Receiver Unit. The POWER LED will light up.

Driver Installation

No driver installation is required for this video extender as they are pure

hardware solutions and not visible to the computer system.

Instruction Manual

Cat5 Cable

The Video Extenders requires an unshielded twisted pair Cat5 cable no

longer than 150m (500ft.).

The cable must be wired according to the EIA/TIA 568B industry standard

as shown below.

NOTE: Cat5, Cat5e, or Cat6 cables can also be used with the extender

pair.

The above diagram shows the RJ45 connector of a Cat5 cable with its

metal contacts facing up.

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

Instruction Manual

Operation

LED

There are two LEDs on the Transmitter unit. The POWER LED will

illuminate indicating that the unit is properly powered. The ACTIVE LED

illuminates when there are VGA input signals present.

The POWER LED of the Receiver and Reapter Units also illuminates

indicating that the unit is properly powered. The ACTIVE LED illuminates

when VGA signals are properly decoded from the Cat5 for the two local

DE-15 VGA outputs.

Signal Equalizer Selector (ST121R, ST121EXT)

The Signal Equalizer Selector on the Receiver and Repeater 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

meters feet

0 ~ 40 0 ~ 131

40 ~ 80 131 ~ 262

80 ~ 120 262 ~ 394

120 ~ 150 394 ~ 500

Instruction Manual

Specications

Connectors

1 x DE-15 VGA male (input)

2 x DE-15 VGA female (output)

8 x RJ45 female

1 x Power connector

LEDs 1 x Power

1 x Active

Maximum Distance 150 m (492 ft) @ 1024x768

Maximum Video Resolution 1600x1200 @ 50 m (150 ft)

Power Adapter 9~12VDC, 1.5A

Dimensions 180.0mm x 85.0mm 20.0mm

Weight 1300 g

Instruction Manual

Troubleshooting

Symptom Solution

No VGA signals at the Reeceiver

unit

Both units must be powered.

The ACTIVE LED on the Transmitter

unit and the Receiver unit must

illuminate to indicate the proper

transmission of the signal.

VGA signal is garbled Ensure that the cables being used

are wired according to the EIA568B

standard.

ACTIVE LED at the Receiver unit is

always off.

The ACTIVE LED on the Transmitter

unit must be on. Check the wiring of

the Cat5 cable.

Ensure that the POWER LED of the

Remote unit is on.

VGA quality changes with the use of

different Cat5 Cables.

Use the equalizer selector to adjust

the VGA signal for various cable

lengths and characteristics.

Table of contents

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