Gefen EXT-VGA-142N Manuale utente
www.gefen.com
®
1:2 VGA Hub
EXT-VGA-142N
USER MANUAL
Technical Support:
Telephone (818) 772-9100
(800) 545-6900
Fax (818) 772-9120
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday.
Write To:
Gefen Inc.
C/O Customer Service
20600 Nordhoff St.
Chatsworth, CA 91311
www.gefen.com
Notice
Gefen Inc. reserves the right to make changes in the hardware, packaging and any
accompanying documentation without prior written notice.
1:2 VGA Hub is a trademark of Gefen Inc.
© 2009 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE
Rev X1
TABLE OF CONTENTS
1. Introduction / Operation Notes
2. Features
3. Panel Descriptions
4. Connecting and Operating the 1:2 VGA Hub
5. Specifications
6. Warranty
The 1:2 VGA Hub allows computers with VGA graphic cards to display a picture
on two VGA displays or projectors simultaneously, making it perfect for presenta-
tions where the operator uses a small monitor at the computer while the audience
views the image on a second larger display or projector.
How It Works
The 1:2 VGA Hub is connected to a PC video source with a VGA (male to female)
cable from the computer’s VGAgraphics card port to the VGA Hub’s input con-
nector.
There are two VGA outputs on the 1:2 VGA Hub. VGA output one is the Primary
connection, which queries the Primary Display attached to it and determines the
possible video resolutions, timings and frequencies that can be used to create a
picture. This information is called EDID (Extended Display Identification Data).
VGA output two is connected to the second (Secondary) display and creates an
image by following the EDID settings obtained from the first (Primary) display;
therefore, both displays should be capable of the same resolutions and refresh
rates in order to display an identical picture. For more information regarding
EDID, please read the Operation Notes immediately below this paragraph.
INTRODUCTION
1
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE 1:2 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-EDID, EXT-DVI-EDIDN, or EXT-DVI-EDIDP) with two VGA to
DVI adapters.
OPERATION NOTES
FEATURES
Features
• Connects computers with VGA graphics to two VGA compatible monitors
• Allows two VGA displays to be connected at the same time to the same video
source
• Simultaneous display at local and remote locations
• Maintains highest video resolution up to 1920 x 1200 and 1080p
• Installs in seconds
Includes:
(1) VGA Hub
(1) 6’ VGA cable (M-F)
(1) 5VDC Power Supply
(1) User’s Manual
2
PANEL DESCRIPTIONS
3
VGA In
5v Power
Input VGA Out 1 VGA Out 2
Power Light
Front
Back
CONNECTING AND OPERATING THE 1:2 VGA HUB
How to Connect the 1:2 VGA Hub to your devices
1- Connect the supplied VGA cable from the VGA device into the 1:2 VGA Hub
Input.
2- Connect the cables from your displays (monitor or projector) into the VGA Out
slots in the back of the 1:2 VGA Hub
4- Plug the 5v power supply into the 1:2 VGA Hub.
5- 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 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.
4
SPECIFICATIONS
5
Video Amplifier Bandwidth ............................................................................ 350 MHz
Input Video Signal ................................................................................... 1.2 volts p-p
Maximum Resolution ............................................................................... 1920 x 1200
Power Consumption ............................................................................ 5 Watts (max.)
Power Supply ................................................................................................... 5V DC
Dimensions ............................................................................... 2.6”W x 1.1”H x 2.6”D
Shipping Weight ................................................................................................. 2 Lbs
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