Gefen EXT-VGA -145 User manual

®
1:4 VGA Hub
EXT-VGA-145
USER’S MANUAL
www.gefen.com

Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday PST
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.
1:4 VGA Hub is a trademark of Gefen LLC
© 2011 Gefen, LLC. All rights reserved.
All trademarks are the property of their respective owners.
ASKING FOR ASSISTANCE
Rev A2

TABLE OF CONTENTS
Introduction / Operation Notes
Features
Panel Descriptions
Connecting and Operating the 1:4 VGA Hub
Specifications
Warranty
1
2
3
4
5
6

The 1:4 VGA Hub allows a computer with a VGA graphic card to connect to up to
four VGA compatible monitors or projectors at the same time. Because it allows
one computer to drive multiple monitors for simultaneous viewing, the 1:4 VGA Hub
can be used to set up additional monitors in the workspace or to assist presentation
environments by sending graphics to both monitors and projectors at the same time.
How It Works
Simply connect your computer’s VGAgraphic port to the 1:4 VGAHub’s input using
the supplied cable. Up to four analog monitors or projectors are connected to the
Hub’s four VGAoutputs. VGAoutput 1 is the primary connection and is used for the
main display. VGA output 2, 3 and 4 will mirror the primary connection.
INTRODUCTION
1
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE 1:4 VGA HUB
• 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 or EXT-DVI-EDIDP) with two VGA to DVI adapters.
OPERATION NOTES

FEATURES
Features
• Connects computers with VGA graphics to four VGA compatible monitors
• Allows four VGA displays to be connected at the same time to the same video
source
• Maintains highest video resolution up to 1920 x 1200 and 1080p
• Installs in seconds
Includes:
(1) 1:4 VGA Hub
(1) 6’ VGA cable (M-F)
(1) 5VDC Power Supply
(1) Users Manual
2

PANEL DESCRIPTIONS
3
VGA Out 1 VGA Out 2 VGA Out 3 VGA Out 4
Front Panel
VGA In
5V Power
Input 5V Power
LED
Back Panel

CONNECTING AND OPERATING THE 1:4 VGA HUB
How to Connect the 1:4 VGA Hub to your devices
1. Connect the supplied VGA cable from the VGA device into the 1:4 VGA Hub
Input.
2. Connect the cables from your displays (monitor or projector) into the VGA Out
slots in the back of the 1:4 VGA Hub
3. Plug the 5v power supply into the 1:4 VGA Hub.
4. Plug the 5v wall-mount power supply into the wall outlet.
NOTE: 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 us-
ing a non-VESA standard resolution or if EDID is needed, an EDID storage and re-
lay 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.
4
Connection Diagram for the 1:4 VGA Hub:
Computer
Splitter
VGA Monitor
VGA Monitor
VGA Monitor
HDMI CABLE
4

SPECIFICATIONS
Video Amplifier Bandwidth ............................................................................ 350 MHz
Input Video Signal ................................................................................... 1.2 volts p-p
Maximum Resolutions supported ......................................... 1080p, 1920 x 1200, 2K
Horizontal Frequency Range: ...................................................................15 - 70 KHz
Vertical Frequency Range: ........................................................................30 - 170 Hz
Input VGA Connectors............................................................................... HD15 Male
Output VGA Connector........................................................................... HD15 female
Power Consumption ............................................................................ 5 Watts (max.)
Power Supply ................................................................................................... 5V DC
Dimensions ................................................................................ 1”H x 5.6”W x 2.6”D
Shipping Weight ................................................................................................. 2 Lbs
5

6
WARRANTY
Gefen warrants the equipment it manufactures to be free from defects in material
and workmanship.
If equipment fails because of such defects and Gefen is notified within two (2)
years from the date of shipment, Gefen will, at its option, repair or replace the
equipment, provided that the equipment has not been subjected to mechanical,
electrical, or other abuse or modifications. Equipment that fails under conditions
other than those covered will be repaired at the current price of parts and labor in
effect at the time of repair. Such repairs are warranted for ninety (90) days from
the day of reshipment to the Buyer.
This warranty is in lieu of all other warranties expressed or implied, including
without limitation, any implied warranty or merchantability or fitness for any
particular purpose, all of which are expressly disclaimed.
1. Proof of sale may be required in order to claim warranty.
2. Customers outside the US are responsible for shipping charges to and from
Gefen.
3. Copper cables are limited to a 30 day warranty and cables must be in their
original condition.
The information in this manual has been carefully checked and is believed to
be accurate. However, Gefen assumes no responsibility for any inaccuracies
that may be contained in this manual. In no event will Gefen be liable for
direct, indirect, special, incidental, or consequential damages resulting from
any defect or omission in this manual, even if advised of the possibility of such
damages. The technical information contained herein regarding the features and
specifications is subject to change without notice.
For the latest warranty coverage information, refer to the Warranty and Return
Policy under the Support section of the Gefen Web site at www.gefen.com.
PRODUCT REGISTRATION
Please register your product online by visiting the Register Product page
under the Support section of the Gefen Web site.

Rev A2
Pb
20600 Nordhoff St., Chatsworth CA 91311
1-800-545-6900 818-772-9100 fax: [phone]
www.gefen.com [email protected]
This product uses UL listed power supplies.