Extron Electronics VN-QUANTUM User Guide - Manual (Page 65)

VN-QUANTUM User Guide Section 3: Functional Overview
I455GB issue 8 Page 65
2-Channel DVI Input Card (ES3314)
Card Architecture
The following diagram shows the main functional blocks of the ES3314 card and basic data/signal
flow through the card:
CONTROL
PCI BUS RAPT BUS
PROCESSING & DOWN-SCALING
DVI
DECODER
ES3314
DVI Input Card
2
D
V
I
In
p
u
ts
Each card can accept 1 or 2 DVI sources. The maximum number of ES3314 cards that can be
installed is limited only by the number of available card slots (see table on page 57). With the
minimum of one Output Card fitted:
The ES3301-2 Card Frame can accommodate up to 14 Input Cards,
allowing a maximum of 28 DVI source inputs.
The ES3302 & 3304 Card Frame can accommodate up to 7 Input Cards,
allowing a maximum of 14 DVI source inputs.
For full technical data on the ES3314 Input Card, including connector pin-outs, see page 102.
Auto-detection of Source Types
Full auto-detection is provided on each input, allowing a wide range of standard source types to be
connected without the need for any further configuration. However, VN-COMMANDER provides the
means to create fixed or custom input modes.
Timebase Correction (Frame Synchronization)
Incoming sources are digitized and then synchronized internally to a specified clock signal derived
from either:
The refresh rate of the display outputs; or
The refresh rate of a designated VIDEO source input (from an ES3311-2 card).
This ensures clean switching between sources without the need for any external source
synchronization.
NOTE: If frame-accurate synchronization is required between some or all sources, these will need to
be synchronized externally.