DVIGear DVI-7320 User manual

DVI-D Fiber Optic Cable
User Guide
Dual-Link DVI Fiber Optic Extender
DVI-7320

TABLE OF CONTENTS
SECTION PAGE
PRODUCT SAFETY .................................1
PRODUCT LIABILITY ...............................1
1. INTRODUCTION ...................................2
2. PRODUCT DESCRIPTION ...........................2
3. SPECIFICATIONS ..................................3
4. PACKAGE CONTENTS ..............................4
5. INSTALLATION AND OPERATION . . . . . . . . . . . . . . . . . . . . . 4
6. TROUBLESHOOTING ...............................6
7. LIMITED WARRANTY ...............................7
8. REGULATORY COMPLIANCE . . . . . . . . . . . . . . . . . . . . . . . . 7

-1-
! WARNING – Product Safety
1. Do not dismantle the product’s housing or modify the printed circuit board
module as this may result in electrical shock or burn.
2. Do not attempt to service this product yourself as opening or removing the
product housing may expose you to dangerous voltages or other hazards.
Refer all servicing to qualified service personnel.
3. Keep this product away from liquids as spills into the product housing may
result in fire, electrical shock, or equipment damage. If liquid spills into the
housing, unplug the product immediately. Have the product checked by a
qualified service engineer before using it again.
4. Place the product in an even and stable location. If the product falls or is
dropped, it may cause an injury and/or malfunction.
5. Avoid that the product is exposed to extreme temperatures or to high humidity
levels as this may result in damage to the product.
6. Only use the supplied External AC Power Adapter. The use of other power
adapters may cause this product to fail or may cause a fire.
7. Do not twist or exert excessive force on the ends of the optical cable as this
can cause it to malfunction. Take precaution to avoid that the fiber optic cable
is not forced to bend tighter than its minimum bend radius.
Product Liability
Every effort has been made to ensure that this product is problem free. DVIGear
cannot be held liable for the use of this hardware or for any direct or indirect
consequential damages arising from its use. It is the responsibility of the user of
this product to check that it is suitable for their requirements and that it is installed
correctly.
All rights are reserved. No parts of this manual may be reproduced or transmitted
by any form or means electronic or mechanical, including photocopying, recording
or by any information storage or retrieval system without the written consent of the
DVIGear, Inc.
DVIGear reserves the right to revise any of its hardware and software following its
policy to modify and/or improve its products where necessary or desirable. This
statement does not affect the legal rights of the user in any way. All third-party
trademarks and copyrights are recognized. The DVIGear logo is a registered
trademark of DVIGear, Inc. All other trademarks are the property of their
respective holders.

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1. INTRODUCTION
The DVI-7320 Dual-Link DVI Fiber Optic Extender enables the transmission of both
single-link and dual-link DVI signals at distances up to 500 meters (100 meters
with real DDC support) without any signal degradation. This makes it an ideal
solution for applications where a dual-link DVI display must be extended from the
signal source without introducing artifacts in the image.
Our professional digital distribution products have been serving the industry
for over ten (10) years. DVIGear offers a full line of high-quality Digital Matrix
Routers, Switchers, Splitters, Video Scalers, Up/Down/Cross Converters, Format
Converters, Analog-Digital Converters, as well as a wide range of long reach
Digital Cables, Extenders, and Optical Transmission systems.
This product offers several unique features and benefits:
• Supports both single-link and dual-link DVI signals.
• Long distance transport of high speed DVI signals using commercial-off-
the-shelf 50µ / 125µ multi-mode fiber optic cable.
• Supports high resolution W-QXGA (2560x1600 pixels) monitors, such as
the 30” Apple Cinema Display and 30” Dell 3008WFP.
• Supports cable lengths up to 500 meters in DDC Emulation Mode and up
to 100 meters with Real DDC Mode.
• Supports two DDC operational modes:
Real Mode - uses one CAT5 cable to support direct DDC
communications (EDID / HDCP) with the connected display.
Emulation Mode - enables a memory device that can store the
connected display’s EDID information.
2. PRODUCT DESCRIPTION
Model Number Product Description
DVI-7320 Dual-Link DVI Fiber Optic Extender - Includes: DVI-7320-Tx transmitter unit,
DVI-7320-Rx receiver unit, and DVI-7320-PS External AC Power Adapter
DVI-7320-PS Optional +5VDC External AC Power Adapter
DVI-23xxx-FOD Optional 8-Strand Dual-link DVI Fiber Optic Cable (xxx = length in meters)
n/a Optional CAT 5 DDC Cable (length must be specified)

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3. SPECIFICATIONS
General Specifications
Maximum Pixel Clock Rates up to 330 MHz
Maximum Bit-Rates up to 1.65 Gbps. per TMDS channel
Maximum Supported
Resolutions
Single-Link Mode: up to 1920x1200, 1600x1200, 2048x1080
Dual-Link Mode: up to 3840×2400
Connector Types
DVI Ports: 29-pin DVI female connectors
Optical Ports: LC optical connectors
DDC Port: RJ-45 Jack
DC Power: Ø5.5 x 9.5mm x Ø2.5mm
Optical Specifications
Optical Transmitter 850nm VCSEL Laser
Optical / Electrical Converter GaAs PIN Photo Diode
Suggested Fiber Optic Cable 50(62.5)µ / 125µ multi-mode fiber with 7x LC connectors
DVIGear Fiber Optic Cable Plenum Rated (OFNP), Outdoor Rated, Black Jacket, O.D. = 6.2mm,
50µ/125µ multi-mode fiber with 8x LC optical terminations
Maximum Cable Length Real EDID Mode: 328 ft. (100 meters)
EDID Emulation Mode: 1,640 ft. (500 meters)
DDC Support
EDID Support The display’s EDID can be transmitted via the optional CAT5 DDC link.
It may also be stored in an EDID memory on the DVI-7320-Tx module.
HDCP Support HDCP communications are supported using optional CAT5 DDC link.
Power
Optical Transmitter DVI-7320-Tx requires 300 ma DC current from pin 14 of DVI (source)
connector. An optional external power adapter may be used if needed.
Optical Receiver Must be powered using the supplied external AC power adapter
External AC Power Adapter Input: 100-240VAC, 50-60Hz 0.5A Output: +5VDC @ 2.0A
Power Consumption DVI-7320-Tx: 1.5 watts DVI-7320-Rx: 1.5 watts
Mechanical
Dimensions (L x W x H) 7.05” x 3.56” x 1.31” (179.1 mm x 90.3 mm x 33.3 mm)
Net Weight DVI-7320-Tx: 1.02 lb. (462 g) DVI-7320-Rx: 1.02 lb. (462 g)
Mounting An optional Wall / Desk Mount Bracket is available, p.n. DVI-7320-WM
Environmental Specifications
Operating Temperature Range 32° to 122° F. / 0° to 50° C.
Storage Temperature Range -4° to 158° F. / -20° to 70° C.
Humidity (Operating / Storage) 10 - 80%
Regulatory Approvals
Optical Extender FCC, CE, RoHS
Power Supply UL, CUL, CE, PSE, GS, RoHS

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4. PACKAGE CONTENTS
Before starting installation, please check the package contents:
• 1x DVI-7320-Tx Transmitter Unit
• 1x DVI-7320-Rx Receiver Unit
• 1x DVI-7320-PS External AC Power Adapter (5VDC, 2A)
• 1x User Guide
5. INSTALLATION AND OPERATION
This product consists of the DVI-7320-Tx Transmitter Unit and the DVI-7320-Rx
Receiver Unit. The DVI-7320-Tx must be connected to the DVI output port of the
signal source (such as a PC). The DVI-7320-Rx should be connected to the DVI
input port of a digital display.
DVI-7320-Tx
Front Panel
Back Panel
DVI-7320-Rx
Front Panel
Back Panel
The DVI signal components are routed from the DVI-7320-Tx to the DVI-7320-Rx via
two distinct signal paths: the low-speed signals are sent over a copper CAT5 cable
link, and the high-speed TMDS and clock signals are sent over seven (7) multi-mode
fiber optic cables with LC connectors (see the picture below).
Each unit has seven (7) Optical ports that are marked with the numbers T1, T2, T3,
T4, T5, T6, and T7 on the DVI-7320-Tx unit, and R1, R2, R3, R4, R5, R6, and R7
on the DVI-7320-Rx unit. It is important to connect each LC fiber optic cable to the
corresponding number on both the DVI-7320-Tx and DVI-7320-Rx units.

-5-
Info: If present, the 8th fiber optic cable does not need to be connected as all
signals are transmitted over cables 1-7. The 8th fiber optic port (to the left
of port T7 or R7) is unmarked and is a dummy port.
System Connection
PC Monitor
Transmitter Unit Receiver Unit
Dual-Link
DVI Cable 7- strand Fiber Optic Cable
UTP CABLE
DC Power Adapter
DC Power Adapter
(Optional)
Dual-Link
DVI Cable
DDC Communications
When the DVI-7320-Tx unit is set for Real DDC operation, a CAT5 copper cable
of suitable length must connected between the DDC ports of the DVI-7320-Tx and
DVI-7320-Rx units. In the Real DDC Mode, the EDID of the connected display is
presented to the DVI source device via DDC link to the DVI-7320-Tx unit. Since
DDC communications are based on I2C technology, the maximum cable length
for the DDC link (CAT5 cable) is 100 meters (328 ft.) as this is the limit of I2C
extenders.
In the DDC Emulation Mode, the connected display’s EDID can be stored in an
EDID memory device located in the DVI-7320-Tx unit. When the DVI source
boots, up it reads the EDID information stored in the DVI-7320-Tx in the same way
as if the display were connected directly to it. The DDC Emulation Mode eliminates
the need for the copper DDC link; hence it allows much longer cable runs (up to
500 meters) to be used.
Programming the EDID Memory
1.) To program the EDID memory, remove all connections to the DVI-7320-Tx unit.
2.) Set the DDC switch on the DVI-7320-Tx to the Emulation position.
3.) Connect a DVI cable between the DVI-7320-Tx and the display.
4.) Connect the External AC Power Adapter to the DVI-7320-Tx.
5.) After a brief delay the red PWR LED will flash rapidly for 1-2 seconds, then turn
OFF for a moment and finally turn back ON.
The EDID has now been successfully stored in the DVI-7320-Tx.

-6-
Power Connections
The DVI-7320-Tx unit can be powered by the DVI soruce only if the soruce device
can provide sufficient drive current on Pin 14 of the DVI output connector. If this
is not the case, an additional External Power Adapter (p.n. DVI-7320-PS) may be
required to power the DVI-7320-Tx unit.
The DVI-7320-Rx unit cannot draw power from the connected display, but it can
receive power from the DVI-7320-Tx unit, provided a copper CAT5 cable is used to
link the DDC ports. If a CAT5 cable is not used, then connect the supplied External
AC Power Adapter to the power input jack on the DVI-7320-Rx unit.
Info: If a CAT5 cable is used to link the DDC ports of both units, then only one
(1) External AC Power Adapter is needed, which can be connected to the
DVI-7320-Tx unit.
6. TROUBLESHOOTING
If the system fails to display a signal, power OFF all devices and check that the
following connections are properly installed:
• The DVI cables connected to the DVI-7320-Tx unit and the DVI-7320-Rx
unit must be a dual-link DVI cables.
• All seven (7) strands of the fiber optic cable must be routed to LC connector
port with the corresponding number on both the DVI-7320-Tx unit and the
DVI-7320-Rx unit. For example, Strand #1 is connected to port T1 and R1;
Strand #2 is connected to port T2 and R2, and so on.
• If using the Real DDC Mode, a suitable length CAT5 cable should be
connected to the DDC ports on the DVI-7320-Tx and DVI-7320-Rx units.
• The External AC Power Adapter should be connected to the DVI-7320-
Rx unit. If no CAT5 cable is used, then an additional External AC Power
Adapter must be connected to the DVI-7320-Tx unit.
Once all connections have been verified, power ON the monitor first, then the
Dual-Link DVI Fiber Optic Extender, and then finally the DVI signal source.
If the system still fails to display an image, check to ensure that the DVI signal
source is compatible with the display by making a direct connection between the
two so as to bypass the Dual-Link DVI Fiber Optic Extender. If there is still no
image, then there is a compatibility issue between the source and the display that
must be resolved.
After trying the above suggestions should the problem still persist, contact your
dealer for additional suggestions. Should the dealer’s technical personnel be
unable to assist you, please contact DVIGear via telephone at 1.888.463.9927
(United States and Canada); international callers may dial 1+770.421.6699, or use
e-mail at [e-mail].

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7. LIMITED WARRANTY
LIMITED WARRANTY – With the exceptions noted in the next paragraph,
DVIGear, Inc. warrants the original purchaser that the equipment it manufactures
or sells will be free from defects in materials and workmanship for a period of
three (3) years from the date of purchase. Should this product, in DVIGear’s
opinion, prove defective within this warranty period, DVIGear, at its option, will
repair or replace this product without charge. Any defective parts replaced
become the property of DVIGear. This warranty does not apply to those
products which have been damaged due to accident, unauthorized alterations,
improper repair, modifications, inadequate maintenance and care, or use in any
manner for which the product was not originally intended.
If repairs are necessary under this warranty policy, the original purchaser must
obtain a Return Authorization Number from DVIGear and return the product
freight prepaid to a location designated by DVIGear. After repairs are complete,
the product will be returned, freight prepaid.
LIMITATIONS – All products sold are “as is” and the above Limited Warranty is
in lieu of all other warranties for this product, expressed or implied, and is limited
to three (3) years from the date of purchase. DVIGear assumes no liability to
distributors, resellers, end-users, or any third parties for any loss of use, revenue,
or profit.
DVIGear makes no other representation of warranty as to fitness for the
purpose or merchantability or otherwise in respect of any of the products sold.
The liability of DVIGear with respect to any defective products will be limited
to the repair or replacement of such products. In no event shall DVIGear be
responsible or liable for any damage arising from the use of such defective
products whether such damages are direct, indirect, consequential or otherwise,
and whether such damage is incurred by the reseller, end-user or any third party.
8. REGULATORY COMPLIANCE
This product has been tested and found to be in compliance with applicable FCC
(Class A) and CE regulations. The External AC Power Adapter is compliant with
UL, CUL, CE, PSE and GS regulations. These products are RoHS compliant.

Your Digital Connectivity Experts
400 Meadowmont Village Circle
Suite 425
Chapel Hill, NC 27517
Toll Free 888.463.9927
Phone [phone]
Fax [phone]
www.dvigear.com
www.dvigear.com
Toll Free 888.463.9927 DVIGear, Inc.
Phone [phone] Triad Court, Suite 8
Fax [phone] Marietta, Georgia 30062-2258
DVI-7320-UG-02 / May.2011