Lightware DA2DVI-Pro User manual

DA2DVI-Pro
User's Manual

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DA2DVI-Pro
User’s Manual Rev. 1.3
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SAFETY INSTRUCTIONS
Class II apparatus construction.
This equipment should be operated only from the power source indicated on the product.
To disconnect the equipment safely from power, remove the power cord from the rear of the
equipment, or from the power source. The MAINS plug is used as the disconnect device, the
disconnect device shall remain readily operable.
There are no user-serviceable parts inside of the unit. Removal of the top cover will expose
dangerous voltages. To avoid personal injury, do not remove the top cover. Do not operate
the unit without the cover installed.
The apparatus shall not be exposed to dripping or splashing and that no objects filled with
liquids, such as vases, shall be placed on the apparatus.
The apparatus must be safely connected to multimedia systems. Follow instructions
described in this manual.
WEEE ( W as te E lectric al & Elec tron ic Equ ipment)
Co rre ct Dispo sal of This Product
This marking shown on the product or its literature, indicates that it should not be
disposed with other household wastes at the end of its working life. To prevent
possible harm to the enviroment or human health from uncontrolled waste disposal,
please separate this from other types of wastes and recycle it responsibily to promote
the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product,
or their local government office, for details of where and how they can take this item
for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase
contract. This product should not be mixed with other commercial wastes for disposal.

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DECLARATION OF CONFORMITY
We,
Lightware Kft. 1071 Budapest Peterdy str. 15 HUNGARY
as manufacturer declare, that the products
DA2DVI-Pro
( Video Distribution Amplifier )
in accordance with the EMC Directive 2004/108/EC and the Low Voltage Directive
2006/95/EEC is in conformity with the following standards:
EMI/EMC ..................................... EN 55022 Class B
Safety...........UL, CUL, GS, CR, RCM, PSE, Class II
Date: 01 September 2009
Name: Gergely Vida ( Managing Director )
Signed:

DA2DVI-Pro
User’s Manual Rev. 1.3
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Table of contents
1. GENERAL DESCRIPTION..............................................................................................................7
1.1. B OX CONTENTS .........................................................................................................................7
1.2. F EATURES ................................................................................................................................7
1.3. A DVANCED EDID M ANAGEMENT ................................................................................................8
1.4. P IXEL A CCURATE R ECLOCKING ..................................................................................................8
1.5. F IBER C ABLE POWERING ......................................................................................................... 10
1.6. C ASCADING MULTIPLE DA2DVI-P ROS ..................................................................................... 10
1.7. F RONT AND REAR VIEW ........................................................................................................... 11
1.7.1. Front panel view .......................................................................................................... 11
1.7.2. Rear panel view........................................................................................................... 12
1.8. E LECTRICAL CONNECTIONS ..................................................................................................... 13
1.8.1. DVI inputs and outputs ................................................................................................ 13
1.8.2. USB control port .......................................................................................................... 14
2. OPERATION ................................................................................................................................ 15
2.1. P OWER .................................................................................................................................. 15
2.2. L EARNING AN EDID................................................................................................................ 15
2.3. S WITCHING THE EDID ............................................................................................................ 16
2.4. F ACTORY PRESET EDID LIST .................................................................................................. 16
3. FRONT PANEL CONTROL - DIP SWITCH SETTINGS.............................................................. 17
4. SOFTWARE CONTROL – USING LIGHTWARE MATRIX CONTROLLER............................... 18
4.1. E STABLISHING THE CONNECTION ............................................................................................. 18
4.2. C ONTROL MENU – I NPUT AND OUTPUT STATES ......................................................................... 19
4.3. EDID MENU ........................................................................................................................... 20
4.3.1. EDID Router operation ................................................................................................ 20
4.3.2. Advanced EDID Editor ................................................................................................ 22
4.4. T ERMINAL MENU ..................................................................................................................... 22
4.5. STATUS MENU ...................................................................................................................... 23
4.6. F IND MENU ............................................................................................................................. 23
4.7. O UTPUT S ETTINGS ................................................................................................................. 24
4.8. C ONTROL COMMANDS ............................................................................................................. 26
4.8.1. View product type........................................................................................................ 26
4.8.2. View serial number...................................................................................................... 26
4.8.3. View firmware version ................................................................................................. 26
4.8.4. Route EDID to the input (static) .................................................................................. 26
4.8.5. Route EDID to the input (dynamic) ............................................................................. 27
4.8.6. Save EDID from output to memory location (Learn EDID) ......................................... 27
4.8.7. View EDID validity table .............................................................................................. 28
4.8.8. View EDID header....................................................................................................... 28
4.8.9. Upload EDID content from the DA2DVI-Pro ............................................................... 28
4.8.10. Download EDID content to the DA2DVI-Pro ............................................................... 29
4.9. DA2DVI-P RO INITIATED COMMANDS ....................................................................................... 30
4.9.1. EDID status changed .................................................................................................. 30
4.9.2. Port status changed .................................................................................................... 30
4.9.3. Error responses........................................................................................................... 30
4.10. I NPUT AND OUTPUT PORT STATUS ............................................................................................ 31
4.10.1. Check the status of the inputs..................................................................................... 31
4.10.2. Check the status of the outputs................................................................................... 31
5. FIRMWARE UPGRADE ............................................................................................................... 32
6. TROUBLESHOOTING ................................................................................................................. 36
6.1. USB CONNECTION PROBLEMS ................................................................................................. 36
6.2. T HERE IS NO PICTURE ............................................................................................................. 36

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6.3. T HERE IS NO INPUT SIGNAL ...................................................................................................... 37
7. MECHANICAL DRAWINGS......................................................................................................... 38
7.1. F RONT VIEW ........................................................................................................................... 38
7.2. R EAR VIEW ............................................................................................................................. 38
7.3. T OP VIEW ............................................................................................................................... 39
7.4. B OTTOM VIEW ......................................................................................................................... 40
8. WARRANTY ................................................................................................................................. 41
9. SPECIFICATIONS........................................................................................................................ 42

DA2DVI-Pro
User’s Manual Rev. 1.3
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1. General description
1.1. Box contents
−DA2DVI-Pro Distribution Amplifier
−User's manual
−Quick Start Guide
−+5V wall plug power adaptor
−CD-ROM with control software
−USB Type A/B cable
1.2. Features
60 meter input cable compensation – Using 22AWG high quality DVI cable, the
input is automatically compensated for up to 60 meter cable
length, which extends installation possibilities even on highest
HDTV or computer resolutions. In case of lower pixel
resolutions, this length can be even higher.
Advanced EDID Management – The user can emulate any EDID on the DA2DVI-
Pro’s input, read out and store any monitor's EDID (attached to
Output 1) in 49 internal memory locations, upload and
download EDID files using Matrix Control Software.
Supports all HDTV resolutions – 720p, 1080i and 1080p etc. without HDCP
encoding - Unencrypted HDTV signals up to 165 MHz pixel
clock frequency regardless of the resolution passed through.
Pixel Accurate Reclocking – (removes jitter and skew caused by long cables)
each output has a clean, jitter free signal, eliminating signal
instability and distortion caused by long cables or connector
reflections.
Signal Present LED – Valid DVI signal is detected, when signal is applied to DVI
INPUT.
Source and Monitor Connected LEDs – Three LEDs indicate when a DVI source
and display diveces are connected to the DA2DVI-Pro.
Front and rear panel control – EDID Address selection with two decimal rotary
switches and Learn EDID button are available on the front
panel. Advanced hardware settings can be made with DIP
switch on the rear side of the DA2DVI-Pro.
Software control – Input status, output settings, EDID Management, Terminal
Window and hardware information can be accessed in
Lightware Matrix Controller software using a USB connection.
Fiber cable support – Self powered DVI fiber cables using +5V from DVI sources
(VGA cards, etc.) usually consume more than 50 mA, which
load is maximum allowed by DVI 1.0 standard. DA2DVI-Pro
supports +5V 500 mA constant current output on each DVI
OUTPUT to power long distance fiber optical cables.
Universal power adaptor – DA2DVI-Pro is equipped with a universal +5V power
adaptor, which accepts AC voltages from 100 to 240 Volts with
50 or 60 Hz line frequency.

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1.3. Advanced EDID Management
Each DVI sink (e.g. monitors, projectors, plasma displays, and switcher inputs)
must support the EDID data structure. Source BIOS and operating systems are
likely to query the sink using DDC2B protocol to determine what pixel formats and
interface are supported. DVI standard makes use of EDID data structure for the
identification of the monitor type and capabilities. Most DVI sources (VGA cards,
set top boxes, etc) will output DVI signal after accepting the connected sink’s EDID
information. In case of EDID readout failure or missing EDID the source will not
output DVI video signal.
DA2DVI-Pro provides Lightware’s Advanced EDID Management function which
helps system integration. The built-in EDID Manager stores and emulates 100
EDID plus the EDID of the display device which is connected to DVI OUTPUT 1.
Memory addresses from 01 to 50 are factory presets, while memories from 51 to
99 are user programmable. The DA2DVI-Pro stores the EDID of the monitor or
projector connected to DVI OUTPUT 1 in a non-volatile memory.
The EDID emulated on the input can be copied from the DA2DVI-Pro's memory
(static EDID emulation) or from the attached monitor (dynamic EDID emulation).
For example, the DA2DVI-Pro can be set up to emulate the device, which is
connected to DVI OUTPUT 1, and the EDID automatically changes, if the monitor
is replaced with another display device (as long as it has a valid EDID).
Info The user is not required to disconnect the DVI cable to change an EDID as
opposed to other manufacturer’s products. EDID can be changed even if source is
connected to the input and powered ON.
1.4. Pixel Accurate Reclocking
DA2DVI-Pro reclocks the signal on all outputs using Lightware’s sophisticated Pixel
Accurate Reclocking technology. Signal reclocking is an essential important
procedure in digital signal transmission. After passing the reclocking circuit, the
signal becomes stable and jitter-free, and can be transmitted over more equipment
like processors, or event controllers. Without reclocking, sparkles, noise and
jaggies can be seen on the image.
The Pixel Accurate Reclocking circuit eliminates the following errors:
Intra-pair skew: skew between the + and - wires within a differential wire pair (e.g.
Data2- and Data2+). It’s caused by different wire lengths or
slightly different wire construction (impedance mismatch) in DVI
cable. It results in jitter.

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User’s Manual Rev. 1.3
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Inter-pair skew: skew between two differential wire pairs in a cable. It’s caused by
different wire pair lengths or different number of twists in the DVI
cable. Too much inter-pair skew results in color shift in the picture
or sync loss.
Jitter: signal instability in the time domain. The time difference between
two signal transitions should be a fix value, but noise and other
effects cause variations.
Noise: electromagnetic interference between other electronic devices
such as mobile phones, motors, etc. and the DVI cable are
coupled onto the signal. Too much noise results in increased
jitter.
The Pixel Accurate Reclocking circuit completely regenerates the original video
signal and outputs a strong, high-quality digital signal that conforms to the DVI
specification.

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1.5. Fiber Cable powering
As special feature DA2DVI-Pro is able to supply 500 mA current to power fiber
optical transmitters like DVI-OPT-TX100 (Pin 14 on both DVI output connectors).
Standard DVI outputs or VGA cards supply only 55 mA current on +5V output, thus
unable to directly power a fiber optical cable.
Info DA2DVI-Pro does not check if the connected sink (monitor, projector or other
equipment) supports Hotplug or EDID signals but outputs the signal immediately
after it has been applied to the input.
1.6. Cascading multiple DA2DVI-Pros
Thanks to the built-in cable equalizer and the Pixel Accurate Reclocking circuit, up
to 8 DA2DVI-Pros can be cascaded. This feature is especially useful for digital
signage applications. The distance between the display blocks may be up to 60
meters in case of HD 1080p resolution, or even higher for lower pixel numbers or
interlaced scan 1080i.
If the display devices have different resolutions, please emulate the EDID of the
display that has the lowest resolution, otherwise the displays with higher
resolutions may not show the whole image, rescale the image or won’t display an
image at all.
Digital signage application

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User’s Manual Rev. 1.3
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1.7. Front and rear view
1.7.1.Front panel view
Status LEDs Learn EDID button
Power LED Address selection
Source connected LED Indicates if a DVI source is connected to the DA2DVI-Pro, it is
powered on and sends +5V signal to Pin 14 of the input DVI
connector.
Signal present LED Indicates if a valid DVI clock signal is present on the input DVI
connector.
Monitor 1 hotplug LED Indicates if a display device (or matrix switcher, repeater, etc.)
is connected to the DVI OUTPUT 1 connector and sends a valid
Hot Plug Signal on Pin 16 through the DVI cable.
Monitor 2 hotplug LED Indicates if a display device (or matrix switcher, repeater, etc.)
is connected to the DVI OUTPUT 2 connector and sends a valid
Hot Plug Signal on Pin 16 through the DVI cable.
EDID status LED Function 1: displays the firmware version of the device. For
more information, see chapter 2.1.
Function 2: after applying a Hot Plug signal to DVI OUTPUT 1,
this LED indicates that the unit is reading the EDID from the
connected display device. If the LED is blinking green then the
EDID is valid, if blinking red, then the EDID is invalid or missing.
Function 3: this LED indicates whether the selected EDID is
valid (continuous green = valid, continuous red = invalid or
empty memory selected). EDID address selection can be done
by front panel rotary switches or Matrix Controller software.
Learn EDID button Stores the EDID of the display device attached to DVI OUTPUT
1 in the selected memory address (51…99). To learn the EDID,
select an appropriate address with the rotary switches and
press and hold the Learn button for two seconds.
Power LED Indicates if the device is powered on. It does not indicate
whether the device is operating properly.
Address selection The rotary switches select one of 100 addresses. Addresses
1…50 are factory preset and 51…99 are user programmable.
Use a flat head screwdriver that fits into the actuator. Avoid use
of keys, coins, knives and other sharp objects because they
might cause permanent damage to the rotary switches.

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1.7.2.Rear panel view
DVI INPUT DIP switch USB connector
+5V DC DVI OUTPUT 1 DVI OUTPUT 2
DVI INPUT Connect one single link DVI-D or DVI-I cable (only digital pins
are connected internally) between the DVI source and DA2DVI-
Pro. The built-in automatic cable equalization circuit
compensates for up to 60 meters at 1920x1080p 60 Hz
resolution. For lower resolutions, even longer cables can be
used.
DIP switch 8 circuit DIP switch, which selects the Control Mode, TMDS PLL
Frequency, Deskew value, Pixel PLL enable and Pixel Phase
clock. For more information, please see section 3.
USB connector USB Type B female connector for remote control using
Lightware Matrix Controller software. Connect a USB Type A/B
cable between the DA2DVI-Pro and the controlling PC or
laptop.
+5V DC connector Connect the output of the supplied +5V power adaptor.
CAUTION! Warranty void if damage occurs due to use of a
different power source.
DVI OUTPUT 1 Connect one single link DVI-D or DVI-I cable (only digital pins
are connected internally) between DA2DVI-Pro and display
device. EDID functions are enabled only on this output.
The output connector is able to supply 500 mA current on pin 14
to power fiber optical DVI extenders like DVI-OPT-TX100.
If a long DVI cable is connected then equalization may be
necessary at the other end of the cable.
DVI OUTPUT 2 Connect one single link DVI-D or DVI-I cable (only digital pins
are connected internally) between DA2DVI-Pro and display
device. EDID functions are not available on this output.
The output connector is able to supply 500 mA current on pin 14
to power fiber optical DVI extenders like DVI-OPT-TX100.
If a long DVI cable is connected then equalization may be
necessary at the other end of the cable.

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User’s Manual Rev. 1.3
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1.8. Electrical connections
1.8.1.DVI inputs and outputs
DA2DVI-Pro provides 29 pole „digital only” DVI-I connectors for input and output
connections. Always use high quality DVI cable for connecting sources and
displays.
The input has a built-in signal detection circuit with a LED indicator located on the
front panel. The LED lights green, if the input connector senses a valid DVI signal.
Pin Signal Pin Signal Pin Signal
1 TMDS Data2- 11 TMDS D1/3 Shield 21 TMDS Data5+ (nc)
2 TMDS Data2+ 12 TMDS Data3- (nc) 22 TMDS Clk Shield
3 TMDS D2/4 Shield 13 TMDS Data3+ (nc) 23 TMDS Clock+
4 TMDS Data4- (nc) 14 +5V Power 24 TMDS Clock-
5 TMDS Data4+ (nc) 15 GND (for +5V) 25 R (not connected)
6 DDC Clock 16 Hot Plug Detect 26 G (not connected)
7 DDC Data 17 TMDS Data0- 27 B (not connected)
8 VSYNC (nc) 18 TMDS Data0+ 28 HSYNC (nc)
9 TMDS Data1- 19 TMDS D0/5 Shield 29 Analog GND
10 TMDS Data1+ 20 TMDS Data5- (nc)
Table 1. DVI-I “digital only” connector pin assignments
Cable length at inputs
DA2DVI-Pro has an advanced built-in cable equalization circuit, which
automatically provides cable length compensation. This circuit extends the
maximum usable cable length to 60 meters using high quality 22AWG copper cable
at WUXGA 1920x1200 graphics resolution.
Cable type
Signal
22 AWG
Reference type
DVI GEAR: SHR DVI
24 AWG
Reference type
TASKER: TSK 1060
Resolution Max length (meter) Max length (meter)
1920x1200; 1600x1200;
2048x1080p; 1080p 60 m 50 m
1680x1050; 1400x1050;
1280x1024 75 m 62 m
1024x768; 1365x768;
720p; 1080i; 92 m 77 m
800x600 100 m (calculated) 84 m (calculated)
640x480; 480p; 576p 120 m (calculated) 100 m (calculated)
Table 2. Maximum DVI cable lengths at inputs

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1.8.2.USB control port
DA2DVI-Pro can be remote controlled via a commonly used USB connector
located on the rear panel of the unit. Connect a USB Type A/B cable between the
DA2DVI-Pro and the controlling PC or laptop.
Please make sure not to send any commands to the DA2DVI-Pro via the USB port
until it has finished the booting process (EDID Status LED continuously illuminated
green or red). Doing so may result in faulty behavior, in which case please restart
the DA2DVI-Pro.
Pin 2 Pin 1
Pin 3 Pin 4
Pin nr. Signal
1 +5V
2 Data-
3 Data+
4 GND
USB Type B port pin locations Table3. – USB Type B pin connections
After connecting the DA2DVI-Pro to the control PC or laptop, the driver of the
device starts installing itself. Normally this is an automatic process. The driver
creates a virtual COM port in the operating system. When running the Lightware
Matrix Controller software, this COM port will be seen in the Available Serial Ports
list.
If the DA2DVI-Pro does not install its driver automatically, please visit the following
website and download the VCP (Virtual COM Port) driver for your operating system
and install it.
http://www.ftdichip.com/Drivers/VCP.htm
For further assistance, please contact [e-mail]

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2. Operation
2.1. Power
When building an electronic system, make sure that all of the devices are powered
down before connecting them. Powered on devices may have dangerous voltage
levels that can damage sensitive electronic circuits.
1. After the system is complete, connect the the +5V Power Adaptor to the
DA2DVI-Pro. The unit is immediately powered ON.
After the DA2DVI-Pro is initialized, the attached DVI source and monitor(s)
can be powered on.
2. After being powered on, the DA2DVI-Pro displays its firmware version using
the EDID Status LED.
The following example shows this process for a firmware version of 1.3.7
RED blinks once →Short pause →GREEN blinks three times →Short
pause →GREEN blinks seven times →Short pause →The normal function
of the LED is in effect.
3. After indicating the firmware version, the EDID STATUS LED turns green if
the selected EDID is valid, or turns red, if the selected EDID is invalid.
4. If a display device is connected to DVI OUTPUT 1, the DA2DVI-Pro reads
the EDID from the attached monitor’s EDID memory.
If the read process is successful, the GREEN LED blinks a few times then
the EDID Status LED shows whether the selected EDID is valid (green) or
not (red).
If the read process is unsuccessful, the RED LED blinks a few times then the
EDID Status LED shows whether the selected EDID is valid (green) or not
(red).
Info If none of the LEDs light up upon power-up, the unit is most likely damaged and
further use is not advised. Please contact [e-mail]
2.2. Learning an EDID
The factory preset EDIDs cannot be changed by the user. Only addresses from 51
to 99 are user programmable.
1. After connecting the sink device to DVI OUT 1, use a screwdriver to select
the desired memory address. EDID are stored in multiple programmable
non-volatile memories.
If the EDID status LED is illuminated RED, then the memory slot is empty
and ready to be programmed. If GREEN, the memory was already used
before, but still available for programming.
2. Push the LEARN button on the front side of the DA2DVI-Pro and hold it
down for approximately 3 seconds.
Once the button is pushed the EDID status LED goes dark. If the storing was
successful, the GREEN EDID status LED blinks five times and stays
illuminated. If the store process was unsuccessful, the RED EDID status
LED blinks five times and stays illuminated either red or green, depending on
the status of the selected EDID.

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2.3. Switching the EDID
1. Use a screwdriver to change the memory address on the front side of the
DA2DVI-Pro.
After either one of the rotary switches has been rotated the unit waits
approximately 2 seconds before the selected EDID becomes active. If the
EDID status is unchanged the EDID STATUS LED does not blink.
2. The address 00 (zero zero) has a special function. If a monitor is connected
to DVI OUTPUT 1, then its EDID is copied to the DVI INPUT. If no monitor is
connected to the Monitor output then the EDID provided on the DVI INPUT
connector is the EDID of the last connected monitor.
Info If an invalid EDID is selected, the DA2DVI-Pro does NOT transmit a HOT PLUG
signal to the source connected to the DVI INPUT.
Info After every EDID change, DA2DVI-Pro toggles the HOT PLUG signal for
approximatley 1 second. Some graphic cards or DVD players do not sense the
HOT PLUG signal, and even if EDID has been changed, the set resolution is not
affected. In this case the source device must be restarted, or powered OFF and
ON again.
2.4. Factory preset EDID list
Lightware factory preloaded EDID are specially provided to force graphic cards to
output only the exact pixel resolution and refresh rate.
Universal EDID (address 49) allows multiple resolutions including all common
VESA defined resolutions. In addition, it also features audio support. The use of
universal EDID is advised for fast and easy system setup.
MEMORY Resolution MEMORY Resolution
01 640x480@60 Hz 26 1600x1200@50 Hz
02 640x480@75 Hz 27 1600x1200@60 Hz
03 848x480@60 Hz 16:9 28 1920x1200@60 Hz
04 800x600@50 Hz 29 1920x1200@50 Hz
05 800x600@60 Hz 30 [email protected] Hz
06 800x600@75 Hz 31 640x480@59.94 Hz
07 1024x768@50 Hz 32 720x480p@60 Hz
08 1024x768@60 Hz 33 576i@50 Hz
09 1024x768@75 Hz 34 720x576p@50 Hz
10 1152x864@75 Hz 35 1280x720p@50 Hz
11 1280x768@50 Hz 36 1280x720p@60 Hz
12 1280x768@60 Hz 37 1920x1080i1 @50 Hz
13 1280x768@75 Hz 38 1920x1080i2 @50 Hz
14 1360x768@60 Hz 39 1920x1080i@60 Hz
15 1364x768@50 Hz 40 1920x1080p@24 Hz
16 1364x768@60 Hz 41 1920x1080p@25 Hz
17 1364x768@75 Hz 42 1920x1080p@30 Hz
18 1280x1024@50 Hz 43 1920x1080p1 @50 Hz
19 1280x1024@60 Hz 44 1920x1080p2 @50 Hz
20 1280x1024@75 Hz 45 1920x1080p@60 Hz
21 1366x1024@60 Hz 46 2048x1080p1 @50 Hz
22 1400x1050@50 Hz 47 2048x1080p2 @50 Hz
23 1400x1050@60 Hz 48 2048x1080p@60 Hz
24 1400x1050@75 Hz 49 UNIVERSAL EDID
25 1680x1050@50 Hz 50 2560x1600@60 Hz
Table 3. Factory Preset EDID list

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User’s Manual Rev. 1.3
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3. Front panel control - DIP switch settings
Advanced users can make adjustments using an 8
circuit DIP switch located on the rear panel of the
DA2DVI-Pro (see chapter 1.7.2).
SW 1: defines whether the DA2DVI-Pro is controlled
by the rotary switches and the DIP switch or the
Lightware Matrix Controller software via USB
connection.
SW 2-3: if the incoming signal has too much jitter
resulting from a low quality source, then a higher
TMDS PLL filter frequency may be necessary. The
default value of 4 MHz should provide the best results
in most cases. CAUTION! Setting a higher frequency
slightly decreases the quality of the output signal.
SW 4-5-6: if the clock and pixel data are not perfectly
aligned in the internal pixel signal, then there’s a
possibility to add some skew between them in both
directions. There is no widely accepted value,
because it depends on the resolution and pixel clock.
A default setting of -2 should provide the best results
in most cases.
SW 7: it is recommended to enable the Pixel PLL at
all times. If the quality of the incoming signal is too low
and the other settings could not improve the quality,
then disabling the Pixel PLL may be necessary.
SW 8: this is a coarse way to adjust the deskew value.
This setting shifts the phase of the clock signal by 180
degrees.

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4. Software Control – Using Lightware Matrix Controller
4.1. Establishing the connection
The unit can be controlled using Lightware Matrix Controller software from a PC or
Laptop via USB port.
1. Turn DIP Switch 1 in ON position to enable USB control function.
Info USB Connection to the DA2DVI-Pro can be done even if it’s in front panel control
mode, but only the status of the settings can be checked, and no software changes
can be applied.
2. Connect a USB Type A/B cable between the PC and the DA2DVI-Pro. The
unit installs its driver automatically. If the installation process fails, see
chapter 1.8.2.
3. To run the CONTROL SOFTWARE, double click on the icon of the software
on the desktop or select the proper shortcut from Start Menu/ Programs/
Lightware folder.
4. Select the appropriate virtual COM port and click on Connect.
Info The device Type and Serial number are not listed automatically for COM ports. To
query the Type and Serial number, double click on the desired COM port.
Info After connecting the DA2DVI-Pro to the controlling PC or laptop, the driver of the
DA2DVI-Pro starts installing itself. The driver creates a virtual COM port in the
operating system. When running the Lightware Matrix Controller software, this
COM port will be seen in the Available Serial Ports list.

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5. After clicking on the Connect button, the Lightware Matrix Controller finds
the hardware, recognizes the product type, and a button matrix area
(crosspoint area) appears according to the input and output numbers of the
device. For DA2DVI-Pro, I1 column represents the input, O1 and O2 rows
represent the outputs. Regardless of the fact that a crosspoint switching area
appears, the input signal is always routed to both outputs by default.
Crosspoint area
4.2. Control menu – Input and output states
Each input and output label has a colored background according to its state, so the
user can see the main information with a quick look at them.
Legend for input labels:
No source is connected. The power +5V is not present.
Source is connected (+5V present), but there is no active DVI signal.
DVI signal is present on the link.
Legend for output labels:
There is no device connected or the connected device is turned off.
Hotplug is present, a sink is connected.
Info: Staying with the cursor above a label shows a hint about these states.

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4.3. EDID menu
4.3.1.EDID Router operation
By clicking on the EDID menu, the EDID router window appears.
When the user enters the menu for the first time, the software starts to download
the whole EDID content from the DA2DVI-Pro. It may take about 10-20 seconds.
After the list is downloaded, the current status of the EDID list is shown in two
windows (list window areas). In the drop-down menus above the two windows you
can select which part of the EDID memory you want to see.
The Emulated EDID List window contains the resolution, manufacturer and vendor
name of the EDID emulated or reported to the source. The source column displays
the memory location that the current EDID was routed from.
The Last attached Monitor's EDID List window contains the resolution,
manufacturer and vendor name of the display device connected to DVI OUTPUT 1.
The Factory EDID List window shows the fifty factory preprogrammed EDID.
The User EDID List shows the memory locations which can be used by the user to
save EDID.
List window areas
Change emulated EDID at the input – Drag and Drop
The two main types of the emulation are the static and the dynamic:
Static EDID emulation: when an EDID from memories 1…100 is selected and
emulated at the input(s)
Dynamic EDID emulation: when an attached monitor’s EDID is emulated at
input(s), simply copying the data from the monitor.
This EDID changes immediately and automatically, if
a new monitor is attached to the output.