Specifications

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How to Configure a MultiTasker System
The following design steps provide a basic methodology to create a MultiTasker solution:
1. Identify all of the signal sources — computers, cameras, microphones, etc.— their signal
formats and connector types. If there are computer sources, make note of what resolutions
and refresh rates they will be used at. In the example on the facing page, note that the com-
puter source has been defined to deliver an XGA resolution video signal, as well as stereo
audio (see Figure 1).
2. Identify all of the signal destinations — monitors, projectors, or recorders — and make note
of their signal compatibility, connectors, resolutions and refresh rates they support.
3. Choose a video format standard. Just as broadcast video can be routed in composite, S-Video
or component signal formats (Y, Pr, Pb/Y, R-Y, B-Y), computer video can be routed as
RGsB, RGBS or RGBHV analog formats or DVI digital formats. Choose standards reflect-
ing the minimal number of format changes, and with which the displays are compatible.
With computer video, make sure that the sync signal format is compatible with all display
and conversion devices.
4. Verify scan rate compatibility — make sure that the output devices can display the input sig-
nals, or that the appropriate signal converter is specified into the MultiTasker system.
5. Choose a connector type to minimize the number of conversions necessary, and thereby
reduce the potential for signal degradation. In the example on the facing page the 15-pin HD
connector type from the source computer output is maintained throughout the signal flow
diagram. The audio signal, however, is converted from 3.5mm connector output to RCA
jacks, for better connectivity to a variety of output devices.
6. Create a signal flow diagram, noting any special features required from each component of
the block diagram. In the example on the facing page, all signals are defined and identified
by type and connector.
7. Select a control method and user interface — push-button, controller, computer, or none.
8. Select the appropriate MultiTasker components to accomplish the required signal routing.
In the example on the facing page, the signal function, resolution and connector require-
ments were used to pick the appropriate cards from the VGA DA card group and Audio DA
card group (see Figure 2). Finally, the eight-slot enclosure was chosen as the best size to fit
the system requirements (Figure 3).
ALTINEX technical support is available to help you with any step in this process.
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