Extron Electronics VN-QUANTUM User Guide - Manual (Page 80)

Section 3: Functional Overview VN-QUANTUM User Guide
Page 80 I455GB issue 8
Understanding the Capabilities of VN-QUANTUM
Overview
VN-QUANTUM is a highly versatile system capable of displaying a large number of sources in real-
time on a target display. As with any system there are certain limitations and this section is intended
to help you understand those limits and how they relate to some real world applications
There are three key limiting factors which will ultimately affect system capabilities:
Number of Card Slots: The number of Input and Output Cards will determine how many
video inputs and display outputs are available. The ES3301-2 Card Frame can accommodate
up to 15 cards and the ES3302 & 3304 a maximum of 8 cards.
RAPT Bandwidth: The RAPT bus carries video and RGB source data between the Input
Cards and the Output Cards. The RAPT can carry the equivalent of 48 full resolution video
sources in real-time. If more data needs to be transported, a scheme of bandwidth
management is implemented.
Rectangulation Limit: The maximum number of source windows that can be displayed by a
single Output Card and cannot exceed 64 rectangles per output channel pair. The maximum
of 64 source windows is achieved by displaying 64 windows as an array on a single output
channel (as shown in Scenario 1 on page 81).
Example Scenarios
The follow example scenarios illustrate various applications that might be required in the real world.
For each scenario, the effect on the three factors described above is shown using three bargraphs.
Wherever possible, the layout examples show source windows at their normal aspect ratio. Some
windows are shown stretched horizontally or vertically to make optimum use of the display space.
RAPT bandwidth and Rectangulation usage are based on the window layout shown. Window layouts
can be changed to suit specific applications, but different layouts will alter the usage values given.