Extron Electronics VN-QUANTUM User Guide - Manual (Page 84)

Section 3: Functional Overview VN-QUANTUM User Guide
Page 84 I455GB issue 8
Scenario 4 – Maximum number of video sources on the largest display
Screen Layout
8 UXGA display devices are used to create a 4x2 tiled display. 132 video source windows are
arranged as a 16x8 array. The total display size is 6400x2400 pixels, making each window 400x300
pixels.
Because each window is smaller than the native source resolution, each source is scaled down to the
required size by the Input Card. This greatly reduces the amount of source data needing to be
transferred across the RAPT bus to the Output Card and allows a large number of sources to be
displayed simultaneously in real-time.
Hardware Requirements
4 Output Cards (driving 8 UXGA screens)
11 Input Cards (providing 132 source inputs)
An ES3301-2 Card Frame.
System Capacity
The limit of 132 real-time video source windows is imposed by the maximum number of card slots
being used.
Expansion Options
Assuming that all video sources are using single-field de-interlace and are sampled at 4:2:2, only
around 75% of the RAPT bandwidth is being used. Rectangulation is also well below its limit, so there
is plenty of headroom for adding RGB graphics (VN-GLIMPSE) sources.