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400-0155-002
3
3
ABOUT YOUR DA1921SX 2
The DA1921SX is a high-resolution 1-in 2-out
computer video amplifier/receiver. It converts
differential signals from a CAT-5 transmitter to
single ended video signals. These single ended
signals allow the source to be distributed to large
screen projectors or other displays with excellent
quality at long distances. The DA1921SX is
designed to be used together with a compatible
CAT-5 computer video transmitter, such as model
DA1920SX. The DA1921SX is connected to the
transmitter using twisted pair CAT-5 UTP
(Category 5, 5e, 6) type cable.
The DA1921SX is compact and easy to use. It
offers a CAT-5 input, two fully buffered outputs and
equalization control. It is perfect for audio/visual
installations, where a single computer sends
signals using inexpensive, thin, light CAT-5 cable.
The DA1921SX can receive signal resolutions from
VGA thru UXGA. Together with an ALTINEX
CAT-5 computer video transmitter and properly
adjusted with the built-in equalization controls, the
maximum cable distance is approximately 500
feet/152 meters for VGA (640 x 480, 60 Hz refresh
rate) and 250 feet/76.2 meters for UXGA (1600 x
1200, 60 Hz refresh rate). Please see the complete
specifications for other resolutions.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION DA1921SX
GENERAL
Inputs
One
Input Connector RJ-45
Outputs
Two
Local Monitor Connector 15-pin HD Female
Main Output Connectors 15-pin HD Female
Cable Distance Limitations
Signal Resolution Distance 640 x 480: 500ft/152m
800 x 600: 450ft/137m
1024 x 768: 400ft/122m
1280 x 1024: 350ft/107m
1600 x 1200: 250ft/76m
Compatibility
VGA thru UXGA
Table 1. DA1921SX General
MECHANICAL DA1921SX
Material
0.1” Al
Finish
ALTINEX Grey
Top Panel
Lexan Overlay
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
50°C
Humidity
90% non-condensing
MTBF (calculations)
40,000 hrs
Table 2. DA1921SX Mechanical
ELECTRICAL DA1921SX
Input Video Signal
Analog Signal Level
Differential ±0.75V
max
Impedance
50 Ohms
Input Sync Signal
Horizontal, Vertical, & C-Sync
Differential ±1V
Impedance
50 Ohms
Output Video Signals
Analog Signal Level
1.5V p-p
Fall/Rise Time (ns)
2.0
Impedance
75 Ohms
Output Sync Signals
Horizontal Sync
TTL (+/-)
Vertical Sync
TTL (+/-)
Coupling
AC
Cross-talk
-40 dB @ 10 MHz
Power
External Power Adapter
9V DC, 500 mA
Table 3. DA1921SX Electrical
NOTE: All cables for the DA1921SX must be
ordered separately.