User’s Guide
P/2 DA1
VGA Line Driver
68-480-01 Rev. C
07 06
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Installation
The Extron P/2 DA1 is a one input, one output VGA line driver. It
boosts the video signal between a laptop or desktop computer (input
device) and a monitor or large screen projector (output device).
15-pin HD input connector
1
2
3
Power LED — Lights to indicate that the P/2 DA1 is on.
Signal LED — Lights to indicate that an input signal is
being received.
Features
• The P/2 DA1 accepts and outputs VGA, XGA, SXGA, RsGsBs,
RGsB, RGBS, and RGBHV signals.
Gain/peaking switch — Compensates for cable resistance
4
• The gain/peaking switch increases video signal voltages to
compensate for signal degradation caused by long cables.
and capacitance.
Normal — Output is the same level as input.
Installation
Medium — 50% of the total gain is applied. Peaking is
To install the P/2 DA1, do the following:
applied.
1.
2.
3.
4.
Turn off power to the input and output devices and unplug
their power cords.
Maximum — 100% of the total gain is applied. Peaking is
applied.
Connect the computer to the 15-pin HD male input
If the signal cable between the P/2 DA1 and the output
device is shorter than approximately 125 feet, and the gain
switch is set to Medium or Maximum, the image may be
overcompensated. If the edges of the image seem to exceed
their boundaries, or if thin lines and sharp edges look thick
and fuzzy, try changing the gain/peaking setting.
connector (see
in the “Operation” illustration below).
1
Connect the output device to the 15-pin HD female output
connector (see in the “Operation” illustration below).
5
Reattach power cords, and apply power to the P/2 DA1
and to the input and output devices.
15-pin HD output connector
5
6
Many laptop computers have an external video port, but
they require special commands to output the video to that
connector. Also, many laptops’ screens shut off after the
port is activated. See the computer’s user’s guide for
details, or contact Extron for a list of laptop keyboard
commands.
Power supply — 110–250 V desktop for international use.
Specifications
Video
Gain ................................................... 0 dB, 0.6 dB, 1.2 dB, selectable: when input is
0.7 Vp-p, output is 0.7 V, 0.75 V, 0.8 Vp-p
Operation
To computer
when switch is at normal, medium, and
maximum positions, respectively
VGA IN
Bandwidth ........................................ 300 MHz (-3 dB)
Note: ID bits will be passed through.
1
Video input
Number/signal type ...................... 1 VGA-UXGA RGBHV, RGBS, RGsB, RsGsBs
Connectors ....................................... (1) 15-pin male
Nominal level .................................. 0.7 Vp-p for RGB
Minimum/maximum levels ......... Analog: 0.3 VDC to 1.5 VDC p-p with no
offset at unity gain
2
3
POWER
SIGNAL
GAIN/PEAKING
NORMAL
MEDIUM
MAXIMUM
4
Impedance ........................................ 75 ohms
Horizontal frequency ..................... 15 kHz to 135 kHz
Vertical frequency ........................... 30 Hz to 170 Hz
6
5
Video output
VGA OUT
Number/signal type ...................... 1 VGA-UXGA RGBHV, RGBS, RGsB, RsGsBs
Connectors ....................................... (1) 15-pin HD female
To display device
2
P/2 DA1 Installation and Operation
P/2 DA1 Operation and Specifications
3
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