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DISTRIBUTION AMPLIFIERS
3
3
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 his own expense.
• Any changes or modifications to the unit not
expressly approved by Altinex, Inc. could void
the user’s authority to operate the equipment.
ABOUT YOUR DISTRIBUTION AMPLIFIER 2
The DA1904SX is a special distribution amplifier
that offers a 15-pin HD input, a RGBHV main
output (on 5 BNC connectors), and a 15-pin HD
loop output. This product provides a low cost
solution and connector adapter needs. This
configuration is very similar to that which is used
for interfacing VGA type signals. These signals
feed RGBHV to a main presentation display on
BNC connectors, which in turn feed the local
monitor from the loop output. The DA1904SX can
be used in this method although it does not
provide other interfacing features, such as Sync
Processing, Horizontal Positioning, etc.
The DA1904SX is primarily designed for RGBHV
format signals, but it is also capable of passing
RGBS and RGsB. The DA1904SX is extremely
compact and may be mounted to furniture or other
surfaces using optional hardware.
In addition to being used for small distribution
applications with two displays, the DA1904SX also
acts as an output module for the Altinex Serial
Distribution System. This is a system, which uses
the concept of creating a high-resolution video bus
in large distribution applications with many
displays. This system provides a lower cost and a
higher performance alternative to the concept of
feeding home runs (a run of cable) to a single
large distribution amplifier.
In the Serial Distribution System, up to thirty
DA1904SX units may be installed at each monitor
location along the bus, which is created by using
VGA-type cables connected to the 15-pin HD input
and loop output. Each monitor is fed from the
RGBHV output. In this system, the DA1904SX
units may receive their origin feed from an output
module (DA1902SX).
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION DA1904SX
GENERAL
Input 1
Input Connector 15-pin HD Female
Output 2
Loop Output Connector 15-pin HD Female
Main Output Connector 5 BNC Female
Compatibility VGA, SVGA, XGA,
high resolution
RGBHV, RGBS, RGsB
and RsGsBs
Table 1. DA1904SX General
MECHANICAL DA1904SX
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) 0.4lbs (0.18kg)
Ship Weight (pounds) 2.0lbs (0.91kg)
T° Operating 10°C-35°C
T° Maximum 50°C
Humidity
90% non-condensing
MTBF (calculations) 40,000 hrs
Table 2. DA1904SX Mechanical
ELECTRICAL DA1904SX
Input Video Signal
Analog Signal 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 Gain of 1.05 (+/-5%)
Fall/Rise Time (ns) 1.4
Impedance 75 Ohms