Gefen EXT-VGA-CAT5-142 User Manual

2X VGA Extender

EXT-VGA-CAT5-142

User Manual

www.gefen.com

ASKING FOR ASSISTANCE

Technical Support:

Telephone [phone]
[phone]

Fax [phone]

Technical Support Hours:

8:00 AM to 5:00 PM Monday thru Friday.

Write To:

Gefen Inc.
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311

www.gefen.com
[e-mail]

Notice

Gefen Inc. reserves the right to make changes in the hard ware, packaging and

any accompanying doc u men ta tion without prior written notice.

2X VGA Extender is a trademark of Gefen Inc.

© 2010 Gefen Inc., All Rights Reserved

All trademarks are the property of their respective companies

REV X1

CONTENTS

1. Introduction

2. Features

3. Sender Panel Descriptions

4. Receiver Panel Descriptions

5. Connecting And Operating The 2X VGA Extender

6. Adjusting The 2X VGA Extender

7. Network Cable Wiring Diagram

8. Specifi cations

9. Warranty

INTRODUCTION

Congratulations on your purchase of the 2X VGA Extender. 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 2X VGA Extender

The Gefen 2X VGA Extender allows you to extend VGA video at great distances,
up to 1,000 feet from the video source. A single industry-standard CAT5 cable
is used to carry the video signal. The 2X VGA receiver unit has two VGA video
outputs, so you can connect more than one monitor if so desired at the remote
location.

How It Works

You simply hook up the 2X VGA sender unit to your VGA video source using
the supplied 6-foot VGA mating cable, then run your CAT-5 cable to the 2xVGA
Receiver unit. At the remote end, connect your display(s) to the 2X VGA Receiver
and your video will be extended fl awlessly.

OPERATION NOTES

READ THESE NOTES BEFORE INSTALLING OR

OPERATING THE 2X VGA EXTENDER

• Resolutions up to WUXGA (1920 x 1200) are supported.

• Maximum extension of CAT-5 or CAT-5e distance of 1000 feet (300 meters).

• 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-EDIDN) with two VGA to DVI adapters.

1

FEATURES

Features

• Extends any VGA video source up to 1000 feet away

• Uses only one CAT-5 cable for extension

• Supports resolutions up to 1080p, 2K, and 1920 x 1200

• Allows up to 2 VGA displays at the remote end

Package Includes

(1) VGA Extender Sender Unit
(1) VGA Extender Receiver Unit
(1) 6 foot VGA Cable (M-F)
(1) 5V External Power Supply
(1) User’s Manual

2

SENDER PANEL DESCRIPTIONS

Front Panel

VGA Input

Back Panel

5V DC Power Input

Link LED

Indicator

RJ-45 Port

Power LED

Indicator

3

RECEIVER PANEL DESCRIPTIONS

Front Panel

VGA Output 2VGA Output 1

Link LED

Indicator

RJ-45 Port

Back Panel

Power LED

Indicator

Red Trim

Pot

Blue Trim

Green Trim

Pot

Pot

Brightness Trim

Pot

Focus Trim

Pot

4

CONNECTING AND OPERATING THE 2X VGA EXTENDER

How to Connect the 2X VGA Extender

1. Connect the VGA source to the 2X VGA Extender sender unit using the
supplied VGA cable

2. Connect the 2X VGA Extender sender unit and receiver unit together using a
user supplied CAT-5 or CAT-5e cable.

NOTE: When terminating cabling, please adhere to the TIA/EIA-568-B
specifi cation. Please see page 7 for more details.

3. Connect the displays to the 2X VGA Extender using user supplied VGA
cables.

4. Connect the included 5V DC power supply to the 2X VGA Extender sender
unit.

5. Power on the display fi rst, and the source second. The LED indicators on
both the 2X VGA Extender sending and receiving units should now be lit .
The receiver unit relies on power from the sender unit. If the receiver unit’s
LED indicators are not lit, please check the CAT-5 cabling and ensure that a
proper connection has been made.

6. If the image appears blurry or smeared, please refer to the next section for
instructions on how to adjust the video image.

ADJUSTING THE 2X VGA EXTENDER RECEIVER

The 2X VGA Extender Receiver has a number of adjustment options to achieve
optimal video quality. There are fi ne and coarse adjustments for focus and
brightness. There is also individual color adjustments for cable skew. Please use
the steps below to fi ne tune the video signal.

Trim Pot Adjustment Procedure

All adjustments in the following section are done via trim pots that require a small
fl athead device. Please follow the steps below for instructions on how to adjust
the trim pots.

1. Insert a small fl athead adjustment tool into the trim pot.

2. Turn the trim pot in a clockwise fashion until the trim pot stop turning. Do not
force the trim pot beyond this point as it will render it useless.

3. Turn the trim pot in millimeter increments in a counter-clockwise fashion until
the desired adjustment point is reached.

4. Remove the trim pot adjustment tool.

5

ADJUSTING THE 2X VGA EXTENDER RECEIVER

Brightness (AGC dip switch, Brightness trim pot)

The 2X VGA Extender receiver features an automatic gain control (AGC) for
brightness. This should set the optimal brightness based on the video signal.
However, manual adjustment can be done by disabling this feature. To disable
AGC, remove the silver metallic tape on the underside of the 2X VGA Extender
receiver to expose a 2 dip switch bank and a pair of trim pots. By default, AGC is
turned on as indicated by dip switch 1 being in the ON position (Dip switch 2 is
not used). Disable AGC by turning dip switch 1 to the OFF position. Adjustment
to the brightness can now be done using the Brightness (Br.) trim pot, located on
the back panel of the 2X VGA Extender receiver unit. Use steps 1 through 4 on
the previous page to adjust the brightness trim pot.

Color Skew Correction (Red, Green, and Blue trim pots)

Varying cable quality, length, and skew may offset the convergence of the three
primary colors. Red, green, and blue can individually be adjusted to compensate
for cable skew. Please use steps 1 through 4 on the previous page on the trim
pots for each color.

Focus (Focus and CABLE EQ trim pots)

If the image appears blurry or ghosted, the focus may need to be adjusted. Use
steps 1 through 4 on the previous page on the Focus (Foc.) trim pot, located on
the back panel of the 2X VGA Extender receiver unit.

The focus can be fi ne tuned using the CABLE EQ trim pot located on the
underside of the 2X VGA Extender. Use steps 1 through 4 on the previous page
to adjust the CABLE EQ trim pot.

Offset

Not for user adjustment. For service purposes only.

AGC

Cable EQ

Offset

6

NETWORK CABLE WIRING DIAGRAM

Gefen has specifi cally engineered their products to work with the TIA/EIA-568-B
specifi cation. Please adhere to the table below when fi eld terminating cable for
use with Gefen products. Failure to do so may produce unexpected results and
reduced performance.

Pin Color

1 Orange / White
2 Orange
3 Green / White
4 Blue

5 Blue / White
6 Green
7 Brown / White
8 Brown

CAT-5, CAT-5e, and CAT-6 cabling comes in stranded and solid core types.
Gefen recommends using solid core cabling. CAT-6 cable is also recommended
for best results.

12345678

Each cable run must be one continuous run from one end to the other. No splices
or use of punch down blocks.

7

SPECIFICATIONS

Video Amplifi er Bandwidth ....................................................................... 350 MHz

Input Video Signal .............................................................................. 1.2 Volts p-p

Input Sync Signal ........................................................................ 5 Volts p-p (TTL)

Horizontal Frequency Range ................................................................ 15-70 KHz

Vertical Frequency Range ................................................................... 30 - 170 Hz

Video In ............................................................................................... HD-15 Male

Video out ................................................................................... (2) HD-15 Female

Link Connector .............................................................................. RJ-45 Shielded

Power Supply .............................................................................................. 5V DC

Power Consumption ........................................................................ 5 Watts (max.)

Sender Dimensions ...................................................................... 1”W x 1”H x 4”D

Receiver Dimensions ................................................................... 3”W x 1”H x 4”D

Shipping Weight ............................................................................................ 3 lbs.

8

9

*ma-vga-cat5-142*

REV X1

20600 Nordhoff St., Chatsworth CA 91311

1-800-545-6900 818-772-9100 fax: [phone]

www.gefen.com [e-mail]