DVI Audio
Extender
USER MANUAL
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TABLE OF CONTENTS
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2
3
4
5
6
7
8
9
10
Introduction
DVI Audio Extender Sender Panel Descriptions
DVI Audio Extender Receiver Panel Descriptions
How To Connect The DVI Audio Extender
Dip Switch Usage Guide
CAT5 Link Cable - Wiring Diagram
Frequently Asked Questions
Terminology
Specifications
Warranty
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OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING
OR OPERATING THE DVI AUDIO EXTENDER
• The DVI Audio Extender is housed in a metal box for better RF shielding.
• Your CAT-5 cable should not exceed 200 feet for 1280x1024/1080i.
• Your CAT-5 cable should not exceed 150 feet for 1920x1080/1080p.
• If you do not need DDC data you can use a single CAT-5 cable for the video only. The
DDC will not be connected. An additional 5V DC power supply will be needed for the
receiver side.
• If the source requires EDID present, you can use the Gefen DVI Detective to provide
EDID information.
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INTRODUCTION
The DVI Audio Extender sender unit sits next to your computer, DVD player or any set-top
box with a DVI output. The cable supplied with the DVI Audio Extender connects your DVI
source to the send unit. The DVI Audio Extender receiver unit sits next to your DVI display
- up to 200 feet at 1280x1024/1080i ( 150 feet at 1920x1200/1080p). The display plugs
into the back of the DVI Audio Extender receiver unit. Two CAT-5 cables connect the DVI
Audio Extender-S and the DVI Audio Extender-R units to each other.
CONTENTS
The DVI Audio Extender system consists of:
DVI Audio Extender-S
DVI Audio Extender-R
1x 6 ft DVI to DVI Cable M-M
2x 5V DC power supply
1x 6 ft Audio RCA Cable
1
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DVI AUDIO EXTENDER SENDER PANEL DESCRIPTIONS
2
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DVI AUDIO EXTENDER RECEIVER PANEL DESCRIPTIONS
3
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HOW TO CONNECT THE DVI AUDIO EXTENDER
Connect your source to the DVI Audio Extender sender unit using the included DVI
Cable.
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2
Connect the audio from your source to the DVI Audio Extender sender using the
included analog RCA cables or optional digital audio cable.
Connect your display to the DVI Audio Extender receiver unit using a DVI Cable.
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4
Connect the audio on your display or audio receiver to the DVI Audio Extender
receiver unit using the analog RCA cables or optional digital audio cable.
Connect your CAT-5 cables between the sender and the receiver
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Plug the 5V power supply into the DVI Audio Extender sender and receiver unit
You should now have picture and sound. If you do not see a picture, try unplugging
and re-plugging the DVI input on the DVI sender unit. Make sure your CAT-5 cables
are not crossed. Recycle the power on the unit.
* If problems presist try adjusting the Dip Switches by following the Dip Switch
Usage Guide.
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DIP SWITCH USAGE GUIDE
Gefen CAT5 Extreme products (sender and receiver) both contain a pair of dip
switches located underneath the unit. These dip switches are used to select from
sets of configurations that will equalize the signal to best match the conditions in your
setup.
Receiver Configuration
Sender Configuration
10m to 33m Cables
Dip #1
Off
Dip #2
Off
Dip #1
Off
Dip #2
Off
Very Good quality cable
Good quality cable
Medium cable
On
Off
Off
Off
Off
On
Off
Off
On
On
Off
Off
Bad cable
Dip #1
On
Dip #2
Off
Dip #1
On
Dip #2
Off
2m to 10m Cables
Very Good quality cable
Good quality cable
Medium cable
On / Off
Off
Off
On
Off
On / Off
On / Off
Off
Off
On
Off
Off
Bad cable
Adjustment Guidelines:
1)
Dip #1 and Dip #2 on the receiver are Equalization Controllers
a)
b)
When both are OFF Equalization is zero => Good quality cables or Bad
quality short cables.
When both are ON Equalization is max => Bad quality long cables.
2)
Dip #1 on the sender side should be ON when a short and good quality cable is
connected
5
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CAT5 LINK CABLE - WIRING DIAGRAM
6
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TROUBLESHOOTING
Frequently Asked Questions
What kind of CAT-5e cable should I be using?
Solid core CAT-5e cable rated at 350 Mhz 568a or 568b is the minimum requirement.
CAT-6 cables are also a viable cable to use. Higher resolutions and transmission lengths
greater then 80 feet might require low skew cables for optimum performance.
I’m getting no video on the screens, what can I check?
First thing to check is make sure that the video CAT5 is linked to the other video CAT5
port and the same with the DDC ports. Test to make sure the units are working with short
CAT-5e cables 15-20 feet. Units shipped starting 12-2005 have the service switches inside
the unit enabled. Please refer to the Service Switch Usage Guide on page 5.
How can I fix the flickering picture?
Flickering or a Blinking image is the result of a loss of sync between the display and the
source. Try lowering the resolution to see if that helps, if it does, the CAT-5 cables you are
using are unable to handle the bandwidth of the higher resolution and thus you are losing
sync. Try a shielded CAT-5e cable on the DDC to reduce interference.
Why is there a green or pink tint to my picture?
A tint of green or pink in the picture is a result of incorrect colorspace being transmitted.
This can be resolved by recycling power on your devices including the extender. If this
does not help, the DDC data containing the colorspace is not being transmitted correctly
due to loss in the CAT5 cable, try replacing the DDC cable.
7
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TERMINOLOGY
CAT-5
Category 5 cable, commonly known as Cat 5, is an unshielded twisted pair type cable
designed for high signal integrity. The actual standard defines specific electrical properties
of the wire, but it is most commonly known as being rated for its Ethernet capability of 100
Mbit/s. Its specific standard designation is EIA/TIA-568. Cat 5 cable typically has three
twists per inch of each twisted pair of 24 gauge copper wires within the cable.
CAT-5e
Similar to Cat 5 cable, but is enhanced to support speeds of up to 1000 megabits per
second.
DDC
Short form for Display Data Channel. It is a VESA standard for communication between
a monitor and a video adapter. Using DDC, a monitor can inform the video card about its
properties, such as maximum resolution and color depth. The video card can then use
this information to ensure that the user is presented with valid options for configuring the
display.
DDWG
Digital Display Working Group DDWG are the creators of the DVI specification.
DVI
Digital Visual Interface. Connection standard developed by Intel for connecting computers
to digital monitors such as flat panels and DLP projectors. Aconsumer electronics version,
not necessarily compatible with the PC version, is used as a connection standard for HDTV
tuners and displays. Transmits an uncompressed digital signal to the display. The latter
version uses HDCP copy protection to prevent unauthorized copying.
HDCP
High-Bandwidth Digital Content Protection. Created by Intel, HDCP is used with HDTV
signals over DVI and HDMI connections and on D-Theater D-VHS recordings to prevent
unauthorized duplication of copy written material.
HDTV
High-Definition Television. The high-resolution subset of our DTV system. TheATSC defines
HDTV as a 16:9 image with twice the horizontal and vertical resolution of our existing system,
accompanied by 5.1 channels of Dolby Digital audio. The CEA defines HDTV as an image
with 720 progressive or 1080 interlaced active (top to bottom) scan lines. 1280:720p and
1920:1080i are typically accepted as high-definition scan rates.
VESA
Video Electronic StandardsAssociation, a consortium of manufacturers formed to establish
and maintain industry wide standards for video cards and monitors. VESAwas instrumental
in the introduction of the Super VGA and Extended VGA video graphics standards with
a refresh rate of 70 Hz, minimizing flicker and helping to reduce user eyestrain and
fatigue.
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SPECIFICATIONS
Video Amplifier Bandwidth ................................................................................ 1.65 Gbps
Input Video Signal ......................................................................................... 1.2 volts p-p
Input DDC Signal .................................................................................... 5 volts p-p (TTL)
Single Link Range .............................................................................1080p / 1920 x 1200
DVI Connector Type ...................................................... DVI-I 29 pin female (digital only)
Digital Audio Connectors....................................................................SPDIF and TOSLink
Analog Audio Connectors........................................................................L+R Analog RCA
Link Connector ........................................................................................................ RJ-45
Power Consumption .................................................................................. 20 watts (max)
Power Supply ......................................................................................................... 5V DC
Dimensions .................................................................................... 2.5” D x 5.5” W x 1” H
Shipping Weight ....................................................................................................... 5 lbs.
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WARRANTY
Gefen Inc. warrants the equipment it manufactures to be free from defects in material
and workmanship.
If equipment fails because of such defects and Gefen Inc. is notified within one (1)
year from the date of shipment, Gefen System 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 shipment 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.
The information in this manual has been carefully checked and is believed to be accurate.
However, Gefen Inc. assumes no responsibility for any inaccuracies that may be contained
in this manual. In no event will Gefen Inc., be liable for direct, indirect, special, incidental,
or consequential damages resulting from any defect or omission in this manual, even if
advi sed of the possibility of such damages. The technical information contained herein
regarding the DVI Audio Extender features and specifications is subject to change without
notice.
10
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6265 Variel Avenue Woodland Hills, CA 91367
1-800-545-6900 818-884-6294 fax: 818-884-3108
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