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DISTRIBUTION AMPLIFIERS
3
• 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 DA1203RM Distribution Amplifier is designed
to allow the connection of a single computer or
other video source to as many as three scan-rate
compatible display devices.
Though primarily designed to pass RGBS format
signals, the DA1203RM can also pass RGsB,
Component Video (Y, R-Y, B-Y), S-Video (Y/C),
and Composite Video by using the appropriate
analog channels (Red, Green, Blue).
The analog channels (Red, Green, Blue) are
designed to pass video levels up to 1.5V p-p
offering a 0.15% differential gain and 0.16 degree
differential phase to assure the highest quality
video signal.
The DA1203RM offers switches for Gain, Sync
Level, and Sync Polarity. The Gain Switch boosts
the output of the amplifier by 35% for use, with long
cable runs. The DA1203RM uses AGC (automatic
gain control) circuitry, which converts all incoming
sync levels to either 4V p-p or 2V p-p. This AGC
circuitry is selectable with the Sync Level switch.
This enables it to be compatible, with current and
older display equipment. The Sync Polarity switch
reverses the polarity of the incoming sync for
compatibility with various displays.
The DA1203RM Distribution Amplifier is a state-of-
the-art product with a video bandwidth of 350 MHz,
enabling it to remain transparent to the video signal
passing through it. Each output is individually
buffered and is not affected by other output
loading.
The DA1203RM offers an internal 90-140/200-
240V power supply and can be rack mounted using
optional accessories hardware ( DA1299RM – rack
ears for single unit and DA1298RM – rack shelf for
two units side-by-side).
TECHNICAL SPECIFICATION 3
FEATURES/DESCRIPTION DA1203RM
GENERAL
Inputs
1
Input Connector 4-BNC Female
Outputs
3
Output Connectors Three 4-BNC Female
Compatibility
High resolution RGBS,
RGsB and RsGsBs,
Component, S-Video
and Composite Video
Table 1. DA1203RM General
MECHANICAL DA1203RM
Material 0.1” Al
Finish Gray
Top Panel Lexan
Height (inches) 3.40in (86mm)
Width (inches) 8.50in (216mm)
Depth (inches) 4.75in (121mm)
Weight (pounds) 2.6lbs (1.18kg)
Ship Weight (pounds) 3.8lbs (1.73kg)
T° Operating 10°C-35°C
T° Maximum 50°C
Humidity
90% non-condensing
MTBF (calculations) 40,000 hrs
Table 2. DA1203RM Mechanical
ELECTRICAL DA1203RM
Input Video Signals
Analog Signal 1.5V p-p max
Impedance 75 Ohms
Input Sync Signals
Horizontal, Vertical, & C-Sync TTL(+/-)
Sync on Green -0.3V
Impedance 10 k Ohms
Output Video Signals
Analog Signal 1.0V p-p/0.7V p-p
Fall/Rise Time (ns) 1.4
Impedance 75 Ohms
Output Sync Signals
Composite Sync TTL(+/-)
Sync on Green -0.3V
Impedance 22 Ohms
Frequency Compatibility
Horizontal 15-200 kHz
Vertical 47-180 Hz