Gefen 1x8 DVI DA User manual

1x8 DVI DA
USER MANUAL
www.gefen.com

Technical Support:
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Technical Support Hours:
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Write To:
Gefen Inc.
C/O Customer Service
20600 Nordhoff St.
Chatsworth, CA 91311
www.gefen.com
[email protected]
Notice
Gefen Inc. reserves the right to make changes in the hardware, packaging and any
accompanying documentation without prior written notice.
1x8 DVI DA is a trademark of Gefen Inc.
© 2007 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE

TABLE OF CONTENTS
Introduction
Features
Panel Descriptions
Connecting and Operating the 1x8 DVI DA
EDID Management Feature
EDID Management Modes
Specifications
Warranty
1
2
3
4
5
6
7
8

Congratulations on your purchase of the Gefen 1x8 DVI Distribution Amplifier. Your
complete satisfaction is very important to us.
Gefen’s line of HDTV switches, extenders, and splitters are designed to make yourA/V
equipment use more comfortable, more productive and less expensive.
The 1x8 DVI DA allows one HDTV device to be outputted on up to eight HDTV displays.
All output displays will have mirrored images.
The Gefen line offers solutions for Home Theater, AV installation, data center, informa-
tion distribution, conference room presentation, school and corporate training environ-
ments.
Our Commitment
Gefen will always offer the finest quality product at the best possible price. Included in
that price is a lifetime support from a team of outstanding engineers.
The Gefen 1x8 DVI DA allows one HDTV DVI device to be distributed easily in to eight
HDTV DVI compatible monitors or projectors. Simply connect your HDTV displays to the
DA’s display outputs. The 1x8 DVI DA can also be placed at the end of a long DVI cable
to regenerate the DVI signal.
INTRODUCTION
1

FEATURES
Features
• Distributes easily up to eight DVI/HDMI displays
• Maintains 480i, 480p, 720p, 720i, and 1080i, 1080p resolutions
• Maintains highest DVI single link video resolution
• Maintains highest DVI digital audio signal
• Supports HDCP compliant devices
• DVI or DVI to HDMI cables are used to connect the inputs and switcher output
• Installs in seconds
Includes:
(1) 1x8 DVI DA
(1) 6’ DVI cables (M-M)
(1) 24VDC Power Supply
(1) Rack Ears
(1) Users Manual
2

PANEL DESCRIPTIONS
Connects to
24VDC power
supply
3
DVI
In 1
DVI
Out 1 DVI
Out 2 Power LED
DVI
Out 3 DVI
Out 4 DVI
Out 5 DVI
Out 6 DVI
Out 7 DVI
Out 8

CONNECTING AND OPERATING THE 1X8 DVI DA
How to Connect the 1x8 DVI DA to your devices
1 Connect the supplied cable from the HDTV DVI source into the 1x8 DVI DA
input.
2Connect the cables from your displays (monitor or projector) into the DVI outs of the
1x8 DVI DA.
3 Plug the 24VDC power supply into the 1x8 DVI DA.
4

5
EDID MANAGEMENT FEATURE
EDID. What is it and what is it used for?
Under normal circumstances, an source device (digital and analog) will require
information about a connected device/display to assess what resolutions and features
are available. The source can then cater its output to send only resolutions and features
that are compatible with the attached device/display. This information is called EDID
(Extended Display Information Data) and a source device can only accept and read one
EDID from a connected device/display. Likewise, the source an only output one resolution
for use by a connected device/display.
Why is EDID so important with the 1x8 DVI Distribution Amplifier?
The 1x8 DVI Distribution Amplifier is complex piece of technology that replicates and
switches between multiple inputs and outputs. Each connected source device will require
one EDID to read. EDID management is carefully handled by 1x8 DVI Distribution
Amplifier to provide a single EDID for each source to read.
What options do I have to manage the EDID in the 1x8 DVI Distribution Amplifier?
First, it is important to note that each source device can only output one video/audio
signal type. This includes resolutions and timings. When multiple devices/displays are
used, such as with the 1x8 DVI Distribution Amplifier, it is important to use devices/
displays that have similar or compatible resolutions/features. This will ensure that
the single video/audio signal produced by the source device is accepted by all of the
connected output devices/displays.
The user has the option, through a combination of DIP switch settings within the 1x8 DVI
Distribution Amplifier, to choose how the unit will manage the EDID from multiple HDMI
devices/displays. Therefore the user has some control over the resolutions/features that
the source devices will output. The 1x8 DVI DistributionAmplifier has a multiple EDID
management modes that will control how the EDID information from multiple devices/
displays are combined, ignored, and routed.
How do I change EDID modes in the 1x8 DVI Distribution Amplifier?
There is an bank of 8 DIP switches located on the main-baord inside of the 1x8 DVI
Distribution Amplifier. DIP switches 1, 2, 5, and 7 are used in different combinations to
manage the EDID modes.
To access these DIP switches it will be required to open the unit. To do this, remove all
screws on the underside and side of the unit. Remove all HEX screws on the rear panel.
This includes the screws above each HDMI port. Carefully slide the unit apart.

6
EDID MANAGEMENT MODES
EDID Modes
The diagram below illustrates the 8 DIP switch bank.
DIP SWITCH Function
1 EDID Mode
2 EDID Mode
3 N/A
4 N/A
5 EDID Mode
6 N/A
7 EDID Mode
8 N/A
Use DIP switches 1, 2, 5, and 7 to select the desired EDID management mode.
EDID Mode 0 (Switch 1=OFF Switch2=OFF Switch5=ON)
• Edid is copied from the device connected to the first active hdmi output port.
• All features newer that HDMI 1.2 are cleared.
EDID Mode 1 (Switch 1=ON Switch2=OFF Switch5=ON)
• Same as Mode 0 and adds basic audio support.
EDID Mode 2 (Switch 1=OFF Switch2=ON Switch5=ON)
• Same as Mode 0 and adds full audio support.
EDID Mode 3 (Switch 1=ON Switch2=ON Switch5=OFF)
• EDID is generated based on the common video and audio features of all of the
connected output devices.
EDID Mode 4 (Switch 1=OFF Switch2=ON Switch5=OFF)
• Same as Mode 3 and adds basic audio support.
EDID Mode 5 (Switch 1=ON Switch2=OFF Switch5=OFF)
• Same as Mode 3 and adds full audio support.
EDID Mode 6 (Switch 1=OFF Switch2=OFF Switch5=OFF)
• EDID is generated based on the common video features of all of the connected
devices and the combined audio features of all of the connected output devices.
EDID Mode 7 (Switch 1=ON Switch2=ON Switch5=ON) DEFAULT
• EDID is passed unmodified from the device connected to the first active
output port.
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SPECIFICATIONS
7
Video Amplifier Bandwidth ..................................................................................1.65 GHz
Input Video Signal ..........................................................................................1.2 volts p-p
Input DDC Signal .....................................................................................5 volts p-p (TTL)
Single Link Range .............................................................................1080p / 1920 x 1200
Input Connector Type .............................................................................DVI (Digital Only)
Output Connector Type ..........................................................................DVI (Digital Only)
Power Consumption .................................................................................60 Watts (max.)
Power Supply ....................................................................................................12-24VDC
Dimensions ..................................................................................17”W x 1.75”H x 7.25”D
Shipping Weight ........................................................................................................8 Lbs