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DISTRIBUTION AMPLIFIER
MANUAL PART NUMBER: 400-0045-005
DA1907SX
1-IN, 2-OUT VGA/SVGA/XGA/UXGA
DISTRIBUTION AMPLIFIER
USER’S GUIDE
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1
TABLE OF CONTENTS
Page
PRECAUTIONS / SAFETY WARNINGS............... 2
GENERAL..........................................................2
GUIDELINES FORRACK-MOUNTING..............2
INSTALLATION..................................................2
CLEANING.........................................................2
FCC / CENOTICE..............................................2
ABOUT YOUR DA1907SX.................................... 3
TECHNICAL SPECIFICATIONS........................... 3
DESCRIPTION OF DA1907SX............................. 4
INPUT................................................................4
OUTPUTS..........................................................4
PRODUCT DESCRIPTION ................................5
DISTRIBUTION AMPLIFIER
APPLICATION DIAGRAM..................................... 5
DIAGRAM1: TYPICAL SETUP ..........................5
INSTALLING YOUR DA1907SX ...........................6
OPERATION.......................................................... 6
TROUBLESHOOTING........................................... 6
LED ISNOT RED ...............................................6
LED ISNOT GREEN..........................................7
NO REMOTE IMAGE .........................................7
REMOTE IMAGE QUALITY IS POOR ................7
CONSTANT USAGE ERRORS ..........................7
ALTINEX POLICY .................................................. 7
LIMITEDWARRANTY/RETURN POLICY ..........7
CONTACT INFORMATION................................7
400-0045-005
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DISTRIBUTION AMPLIFIER
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PRECAUTIONS / SAFETY WARNINGS 1
Please read this manual carefully before using your
DA1907SX Distribution Amplifier. Keep this manual
handy for future reference. These safety
instructions are to ensure the long life of your
DA1907SX and to prevent fire and shock hazard.
Please read them carefully and heed all warnings.
1.1 GENERAL
• Unauthorized personnel shall not open the unit
since there are high-voltage components inside.
• Qualified Altinex service personnel, or their
authorized representatives, must perform all
service.
1.2 GUIDELINES FOR RACK-MOUNTING
• Maximum operating ambient temperature is
45ºC.
• Distribute rack-mount units evenly; otherwise,
hazardous conditions may be created by an
uneven weight distribution.
• Reliable grounding of rack-mounted Equipment
should be maintained.
1.3 INSTALLATION
• For best results, place the DA1907SX
Distribution Amplifier on a flat, level surface in a
dry area away from dust and moisture.
• To prevent fire or shock, do not expose this unit
to rain or moisture. Do not place the DA1907SX
Distribution Amplifier in direct sunlight, near
heaters or heat radiating appliances, or near any
liquid. Exposure to direct sunlight, smoke, or
steam can harm internal components.
• Handle the DA1907SX Distribution Amplifier
carefully. Dropping or jarring can damage
internal components.
• Do not place heavy objects on top of the
DA1907SX. If the DA1907SX is to be mounted
to a table or wall, use only Altinex made
mounting accessories.
• The power outlet socket should be installed as
close to the as possible, and should be easily
accessible.
• Do not pull the power cord of AC Adapter or any
cable that is attached to the DA1907SX
Distribution Amplifier.
• If the DA1907SX Distribution Amplifier is not
used for an extended period, disconnect the
Power (AC) Adapter from the power outlet.
1.4 CLEANING
• Unplug the DA1907SX AC Adapter from the wall
before cleaning. Clean surfaces with a dry cloth.
Never use strong detergents or solvents, such
as alcohol or thinner. Do not use a wet cloth or
water to clean the unit.
1.5 FCC / CE NOTICE
• This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
• This equipment has been tested and found to
comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference when the
equipment is operated in a commercial
environment. This equipment generates, uses,
and can radiate radio frequency energy and, if
not installed and used in accordance with the
instruction manual, may cause harmful
interference to radio communications. Operation
of this equipment in a residential area is likely to
cause harmful interference in which case the
user will be required to correct the interference
at their expense.
• Any changes or modifications to the unit not
expressly approved by Altinex, Inc. could void
the user’s authority to operate the equipment.
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DISTRIBUTION AMPLIFIER
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ABOUT YOUR DA1907SX 2
The DA1907SX (Ditto-Amp) is a high-resolution,
1-in 2-out distribution amplifier designed to allow
the connection of a single VGA/SVGA/XGA/UXGA
source to up to two scan-rate compatible displays.
A minimum video bandwidth of 400 MHz allows
very high-resolution video signals to pass without
degradation to the image quality. The Local Monitor
Output of the DA1907SX is pre-compensated for
up to 12 feet of high-resolution coaxial-type VGA
cable. The Main Output of the DA1907SX is precompensated for up to 250 feet with high-resolution
coaxial-type VGA cable.
Being compact and easy to use, the DA1907SX is
perfect for audio/visual installations, where a single
computer needs to be connected to a projector (or
presentation monitor) and a local monitor
simultaneously. The DA1907SX has female 15-pin
HD (VGA type) connectors on all input and output
connectors so it can be used with readily available
standard VGA type cables. If desired, the input
and/or output of the DA1907SX can be easily
adapted to 5 BNC connectors through Altinex
adapter cables.
The DA1907SX is compatible with RGsB, RGBS,
or RGBHV signal types and with the proper cable
the DA1907SX can be used with MAC, SUN or SGI
platform computers.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION DA1907SX
GENERAL
Inputs One
Input Connector 15-pin HD Female
Outputs Two
Local Monitor Connector 15-pin HD Female
Main Output Connectors 15-pin HD Female
Compatibility VGA, SVGA, XGA,
UXGA, MAC, SUN,
SGI
Table 1. DA1907SX General
MECHANICAL DA1907SX
Material 0.1” Al
Finish Gray
Top Panel Lexan
Height (inches) 3.00in (76mm)
Width (inches) 4.50in (114mm)
Depth (inches) 1.00in (25mm)
Weight (pounds) 0.40lb (0.18kg)
Ship Weight (pounds) 2.4lbs (1.09kg)
T° Operating 10°C-35°C
T° Maximum 45°C
Humidity
MTBF (calculations) 40,000 hrs
Table 2. DA1907SX Mechanical
ELECTRICAL DA1907SX
Input Video Signal
Analog Signal Level 1.5V p-p max
Impedance 75 Ohms
Input Sync Signal
Horizontal, Vertical, & C-Sync TTL(+/-)
Sync on Green -0.3V
Impedance 10 k Ohms
Output Video Signals
Analog Signal Level Gain of 1.05 (+/-5%)
Fall/Rise Time (ns) 1.0
Impedance 75 Ohms
Output Sync Signals
Composite Sync TTL(+/-)
Sync on Green -0.3V
Impedance 22 Ohms
Frequency Compatibility
Typical Video Bandwidth 430 MHz @ -3 dB
Minimum Video Bandwidth 400 MHz @ -3 dB
Horizontal 15-200 kHz
Vertical 47-180 Hz
Cable EQ at Main Output 3 dB @ 120 MHz
Coupling DC
Cross-talk -40 dB @ 10 MHz
Power, External 9V DC, 500 Ma
Table 3. DA1907SX Electrical
90% non-condensing
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DISTRIBUTION AMPLIFIER
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10
ID Bit 3
11
ID Bit 1
12
ID Bit 2
13
Horizontal Sync
14
Vertical S
ync15No connection
DESCRIPTION OF DA1907SX 4
4.1 INPUT
The Computer Input connector of the DA1907SX is
connected to the Video output of a laptop or
desktop computer. The DA1907SX is provided with
a 3 foot Male to Male VGA Input cable. A longer
input cable may be used but lengths over 15 feet
are generally not recommended to preserve the
signal quality. If desired, the HD-15 input can be
easily adapted to a 5-BNC connector output with
the proper cable.
Pin Inputs
Red
1
Green
2
Blue
3
ID Bit 4 (Grounded, when
4
ID Bit 4 switch is ON)
Ground
5
Ground
6
Ground
7
Ground
8
No connection
9
Table 4. Computer Input
4.2 OUTPUTS
The DA1907SX has two buffered outputs with
15-pin HD Female connectors. The Local Monitor
output is an amplified output. The Main output is for
the distant presentation display (large screen
monitor or LCD projector) up to 250 feet away. The
Main output is pre-compensated for optimal
performance with 75 ft of Altinex super
high-resolution VGA cable. If desired the outputs
can be adapted easily to 5-BNC connectors with
the proper cable.
Pin Main Outputs
1 Red
2 Green
3 Blue
4 No connection
5 Ground
6 Ground
7 Ground
8 Ground
9 Composite Sync
10 No connection
11 No connection
12 No connection
13 Horizontal Sync
14 Vertical Sync
15 Ground
Table 5. Main Outputs
Pin Local Output
1 Red
2 Green
3 Blue
4 ID Bit 4
5 Ground
6 Ground
7 Ground
8 Ground
9 Composite Sync
10 ID Bit 3
11 ID Bit 1
12 ID Bit 2
13 Horizontal Sync
14 Vertical Sync
15 No connection
Table 6. Local Monitor Outputs
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PRODUCT DESCRIPTION
VGA COMPUTER
VIDEO INPUT
DISTRIBUTION AMPLIFIER
VGA
MAIN
OUT
VGA MONITOR
LOCAL OUTPUT
APPLICATION DIAGRAM 5
DIAGRAM 1: TYPICAL SETUP
POWER
INPUT
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DISTRIBUTION AMPLIFIER
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INSTALLING YOUR DA1907SX 6
Step 1. Connect the 9V 500mA AC adapter’s
output plug to the DA1907SX’s power
input connector - 2.5 mm DC Jack. Verify
the LED in the top right corner of the unit
on the front panel turn on and RED.
Step 2. Remove the protective port covers.
Connect the video output from the
computer to the computer input connector
on the DA1907SX using the provided
input VGA cable. If a longer cable is
required, please make sure that the cable
has video signals through coaxial cables
and this cable is not excessively long.
Step 3. Verify the LED on the face of the unit has
changes from RED to GREEN, indicating
an active source is applied. If the LED is
not green, the computer may not be
sending video signals. Check your
Computer’s manual if you are using a
laptop computer. You may have to send a
command that instructs the laptop to
output to the internal display and the
external video port simultaneously.
Step 4. Connect your display device (monitor or
projector) to the Main output. If needed,
connect a monitor to the Local Monitor
output port.
Step 5. Verify the picture quality on all displays is
good. If you are not receiving a signal,
make sure that the display is compatible
with the resolution of the computer
graphics card. Note: High levels of static
discharge under some conditions may
shutdown the unit. To reset the unit
simply, disconnect the input cable and
reconnect it.
OPERATION 7
There are no adjustments necessary to operate the
DA1907SX, the unit will operate successfully as
long as cables are attached properly and other
technical specifications are followed.
The DA1907SX offers a special LED on the front
panel that provides feedback to the user. When
power is connected to the DA1907SX, the LED will
turn RED. The LED will turn GREEN when an
active computer source is connected. This indicates
that it is receiving a proper signal by sensing the
presence of the sync portion of that signal.
TROUBLESHOOTING 8
We have carefully tested and have found no
problems in the supplied DA1907SX; however, we
would like to offer suggestions for the following:
8.1 LED IS NOT RED
The LED should be ON and RED when power is
applied and there is no video signal present. If
the LED is ON and GREEN, the unit is receiving
power and a SYNC signal.
Cause 1: No AC power.
Solution: Verify the Altinex supplied adapter is
plugged into a working AC outlet
and that the outlet has power.
Cause 2: Adapter is not plugged.
Solution: Verify the DC power plug coming
from the AC adapter is plugged all
the way into the DA1907SX.
Cause 3: The DA1907SX has a problem.
Solution: If there is AC power to the adapter
and the LED still does not turn on,
the DA1907SX or the power adapter
may require service. Call ALTINEX
at (714) 990-2300.
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8.2 LED IS NOT GREEN
Cause 1: There is no power.
Solution: Disconnect the video input from the
DA1907SX and verify the LED is ON
and RED indicating power is
present. Reconnect the computer's
video output. If the LED is still not
GREEN see Cause 2.
Cause 2: There is no Sync signal.
Solution: Verify the computer output is
operating correctly by connecting it
directly to a local monitor. If the
display is good, call ALTINEX at
(714) 990-2300.
8.3 NO REMOTE IMAGE
Cause 1: The source has a problem.
Solution: Check the image on a local monitor
and verify the quality is good. If the
local image is good, see Cause 2.
Cause 2: Cable connections are incorrect.
Solution: Make sure that cables are
connected properly. Also, make sure
that the continuity and wiring are
good. If there is still no image
present, see Cause 3. If the display
is good, call ALTINEX at (714)
990-2300.
Cause 3: Signals are bad.
Solution: Make sure that the amplitude of the
input video analog signal is less than
1.5V and the SYNC input is at a TTL
level.
Cause 2 Poor signal transmission.
Solution: Check the cables for continuity and
make sure that connections are
wired properly. If the image is still
not correct, see Cause 3.
Cause 3: Cable runs too long.
Solution: Make sure that the outputs are
terminated properly and the cable
run does not exceed 15 feet for the
local monitor output and 100 feet for
the main output port.
NOTE: The DA1907SX is capable of
driving a computer video signal up to
250 feet depending on the resolution
and cable quality.
8.4 CONSTANT USAGE ERRORS
Cause 1: There is an environment problem.
Solution: If a problem arises after continuous
usage at higher voltage, higher
temperature, higher humidity, or at
other extreme environmental
conditions, please correct the
problem, or call Altinex at
(714) 990-2300.
ALTINEX POLICY 9
9.1 LIMITED WARRANTY/RETURN POLICY
Please see the Altinex website at
www.altinex.com for details on warranty and
return policy.
9.2 CONTACT INFORMATION
ALTINEX, INC
8.4 REMOTE IMAGE QUALITY IS POOR
Cause 1: The source has a problem.
Solution: Check the image on the local
monitor and verify the quality is
good. If the local image is good, see
Cause 2.
400-0045-005
592 Apollo Street
Brea, CA 92821 USA
TEL: 714 990-2300
TOLL FREE: 1-800-ALTINEX
WEB: www.altinex.com
E-MAIL: solutions@altinex.com
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