Extron Electronics P-2 DA1 User Manual

User’s Guide

P/2 DA1

VGA Line Driver

68-480-01 Rev. C

07 06

Installation

POWER

SIGNAL

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).

Features

• The P/2 DA1 accepts and outputs VGA, XGA, SXGA, RsGsBs,
RGsB, RGBS, and RGBHV signals.

• The gain/peaking switch increases video signal voltages to
compensate for signal degradation caused by long cables.

Installation

To install the P/2 DA1, do the following:

1. Turn off power to the input and output devices and unplug

2. Connect the computer to the 15-pin HD male input

3. Connect the output device to the 15-pin HD female output

4. Reattach power cords, and apply power to the P/2 DA1

Operation

1

2

3

4

5

To display device

their power cords.

connector (see

in the “Operation” illustration below).

1

connector (see 5 in the “Operation” illustration below).

and to the input and output devices.

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.

To computer

VGA IN

POWER

SIGNAL

GAIN/PEAKING

NORMAL
MEDIUM
MAXIMUM

6

VGA OUT

15-pin HD input connector

1

Power LED — Lights to indicate that the P/2 DA1 is on.

2

Signal LED — Lights to indicate that an input signal is

3

being received.

Gain/peaking switch — Compensates for cable resistance

4

and capacitance.

Normal — Output is the same level as input.
Medium — 50% of the total gain is applied. Peaking is

applied.

Maximum — 100% of the total gain is applied. Peaking is

applied.

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.

15-pin HD output connector

5

Power supply — 110–250 V desktop for international use.

6

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
when switch is at normal, medium, and
maximum positions, respectively

Bandwidth ........................................ 300 MHz (-3 dB)

Note: ID bits will be passed through.

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

Impedance ........................................ 75 ohms

Horizontal frequency ..................... 15 kHz to 135 kHz

Vertical frequency ........................... 30 Hz to 170 Hz

Video output

Number/signal type ...................... 1 VGA-UXGA RGBHV, RGBS, RGsB, RsGsBs

Connectors ....................................... (1) 15-pin HD female

P/2 DA1 Operation and SpecificationsP/2 DA1 Installation and Operation

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