Interfaces – Altinex VA6835FC User Manual

Page 8

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INTERFACES

7

CONNECTOR

MAIN DUAL OUTPUT (6-BNC

FEMALE)

Red

Red Video

Green

Green Video

Blue

Blue Video

Sync

Composite Sync/ Horizontal

Hor.

Horizontal Sync

Vertical

Vertical Sync

Table 6. VA6835FC dual (6 BNC) Output pin-out

4.4 HORIZONTAL POSITION ADJUSTMENT

Most monitors and projectors have the ability to
adjust the horizontal position of the image, but
sometimes it is helpful to be able to control this
feature at the interface. This control is especially
useful when multiple computers are switched to a
single display, as the positions for each computer
might be slightly different.

By keeping the VA6835FC’s Horizontal Position
control dial in the center position, the image on the
display should first be adjusted using the monitor
or projector control. If necessary, turn the image
using the VA6835FC’s Horizontal Position Control
Dial.

To turn off the Horizontal Position Control, turn the
adjustment dial fully to the right until a clicking
sound is heard.

4.5 HORIZONTAL DELAY REMOVAL

The VA6835FC offers the ability to by-pass
horizontal delay. This may be necessary when
interfacing with projectors or monitors with
sensitive sync inputs, particularly with LCD type
projectors. By turning the Horizontal Position
adjustment dial fully to the right, the control will
“click” into a locked position. In this position, the
VA6835FC outputs the same sync types, which
are fed into it from the source. In this setting, the
VA6835FC will not provide horizontal positioning.
The horizontal position adjustment of the image
must be made at the display.

4.6 POWER REQUIREMENTS

The VA6835FC may be used with either 90-140V
or 200-240V for ease of use throughout the world.
Always make sure that the fuse box window above

the power input connector displays the proper
voltage. To change the setting, unplug the
VA6835FC, and squeeze the clips on either side
of the fuse box. Pull out the fuse holder and turn it
180 degrees, resetting it with the proper voltage
shown through the window. Re-insert the fuse box
making sure that the side clips of the fuse box
lock securely into place.

4.7 MOUNTING CAPABILITY

The VA6835FC can be easily mounted into an
equipment rack. Four mounting holes are provided
on each side of the unit. To mount a single unit,
use Altinex 19”-1U Rack Mount Ears (part #
DA1294FC). To mount two units in tandem, use
an Altinex 19”-1U Rack Mount Shelf (part #
DA1293FC). For mounting under the table,
optional brackets, such as the TM1271, TM1272,
TM1273, or TM1274 can be used.

4.8 BANDWIDTH

The typical bandwidth of the VA6835FC is 420
MHz. The minimum bandwidth is 350 MHz. This
exceptionally high bandwidth allows the passing of
the third harmonics of the video signal, thus
maintaining the highest quality of the input signal.

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