Gefen EXT-VGA-141LR User manual

®
VGA Extender LR
EXT-VGA-141LR
User’s Manual

ASKING FOR ASSISTANCE
Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday thru Friday Pacic Time
Write To:
Gefen, LLC.
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefen.com
[email protected]
Notice
Gefen, LLC. reserves the right to make changes in the hardware, packaging and
any accompanying documentation without prior written notice.
VGA Extender LR is a trademark of Gefen, LLC.
© 2011 Gefen, LLC. All rights reserved.
All trademarks are the property of their respective owners.
Rev A3

1 Introduction
2 Operation Notes
3 Features
4 Panel Layout
5 Panel Descriptions
6 Connecting And Operating The VGA Extender LR
7 Connecting And Operating The VGA Extender LR
8 Network Cable Wiring Diagram
9 Specications
10 Warranty
CONTENTS

1
Congratulations on your purchase of the VGA Extender LR. Your complete
satisfaction is very important to us.
Gefen
Gefen delivers innovative, progressive computer and electronics add-on solutions
that harness integration, extension, distribution and conversion technologies.
Gefen’s reliable, plug-and-play products supplement cross-platform computer
systems, professional audio/video environments and HDTV systems of all sizes
with hard-working solutions that are easy to implement and simple to operate.
The Gefen VGA Extender LR
The VGA Extender allows users to extend video signals beyond the A/V rack.
The VGA Extender Series can be used to extend an analog signal to cover
distances up to 330 feet. Industry standard Category 5e (CAT-5e) cable is used
for the extension.
How It Works
The VGA Extender LR Sender unit connects to your source using the supplied
cable. The Receiver unit connects to your display – up to 330 feet away. One
CAT-5 cable connects the Sender and the Receiver to each other, extending your
video awlessly.
Note: This is a new VGA Extender that goes double the distance of the previous
version, and also has a trim pot for ne video adjustment.
INTRODUCTION

READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE VGA EXTENDER LR
• Display information (EDID) is not sent back to the source. Standard VESA
resolutions should be output by most computers without the need of an
EDID. If using a non-VESA standard resolution or if EDID is needed, an
EDID storage and relay device is necessary. Gefen recommends the use of
a DVI Detective (part# EXT-DVI-EDID, EXT-DVI-EDIDN, or EXT-DVI-EDIDP)
with two VGA to DVI adapters.
• Use industry standard Category-5 (CAT-5) cable to operate the VGA
Extender LR system. CAT-5e cable is preferred.
• Please connect all the cables between the computer and the VGA Extender
LR before powering up the VGA Extender LR unit.
• The VGA Extender LR units are housed in a metal box for better RF
shielding.
2
OPERATION NOTES

3
Features
• Extends any VGA or high denition component display up to 330 feet (100
meters)
• One CAT-5e cable for extension
• Supports resolutions up to 1080p, 2K, and 1920 x 1200
Package Includes
(1) VGA Extender S Sender Unit
(1) VGA Extender R Receive Unit
(1) 6 Foot VGA cable (M-F)
(1) 5V external power supply
(1) Quick-Start Guide
FEATURES

4
6
5
4
3
1 2
PANEL LAYOUT
7

5
1 5V DC Power Supply Input
Connect the included 5V DC power supply to this input. Power for the receiving
unit will be provided over the CAT-5e cable that connects the sending and
receiving units together.
2 Sender RJ-45 Input
Connect a CAT-5e cable (terminated according to the TIA/EIA-568-B
specication. Please see page 7) between the sending and receiving units.
3 VGA Input
Connect the VGA source to this input. EDID is not transmitted from the display
through the VGA Extender LR units. If the display has a non-standard VESA
resolution, please purchase an EDID storage device (part# EXT-DVI-EDIDN) to
record and transmit the displays EDID back to the source.
4 Brightness Trim Pot Control
Adjusting this control will brighten or dim the output video. Please see page 6 for
more details.
5 Receiver RJ-45 Input
Connect a CAT-5e cable (terminated according to the TIA/EIA-568-B
specication. Please see page 7) between the sending and receiving units.
6 Power LED
This LED will become active once the included power supply is connected and a
properly connected CAT-5e cable is joining the sending and receiving units.
7 VGA Output
Connect the VGA display to this output port.
PANEL DESCRIPTIONS

How to Connect the VGA Extender LR
1. Connect the VGA Extender LR Sender unit to the VGA output on the back of
your computer. The six foot M-F VGA cable connects the CPU and Sender
unit together.
2. Connect the VGA Extender LR Receiver unit to your monitor with the VGA
cable that is attached to your monitor.
3. Connect the CAT-5e cable between the VGA Extender LR Sender and
Receiver’s CAT5 input.
4. Plug the 5V DC power supply into the Sender unit. The VGA Extender LR
Receiver will draw power from the Sender.
6
A brightness adjustment control (or “trim pot”) is found on the Receiver unit and
will help compensate for issues that can be introduced by outside interference
and cable variances. If the outgoing image is too dark or too bright, the bright-
ness trim pot can be tuned to help brighten the image. To use the brightness
trim pot, insert a small philips screwdriver into the brightness trim pot hole. Turn
the trim pot in small increments in either a clockwise or counterclockwise direc-
tion until the desired brightness is reached. Do not force the trim pot to turn if
resistance is encountered; turn it the other way instead. Forcing the trim pot may
render the product inoperative.
BRIGHTNESS ADJUSTMENT CONTROL
CONNECTING AND OPERATING THE VGA EXTENDER LR
In order to reduce the amount of crosstalk between twisted pairs within the CAT5
cable, the rate of twist for each pair is varied. The rate of twist affects the length
of each twisted pair and is referred to as CABLE SKEW. Slight differences in
cable skew between pairs of wire can result in undesirable color separation.
The EXT-VGA-LR allows you to manually compensate for cable skew. Under-
neath the Receiver unit, there are a group of DIP switches. These switches are
pre-set to optimal values at the factory but can easily be changed to correct color
smearing or separation. To use the DIP switches, peel back the small strip of
silver-grey tape. The exposed small sliding switches can be turned ON or OFF
with a small pointed instrument such as a very small screwdriver or the head of a
mechanical pencil (without lead exposed). The DIP switch banks and instructions
for their use are shown on the next page.
CABLE SKEW / COLOR CONVERGENCE ADJUSTMENTS