User`s manual
3. Getting started
Barco – Hydra Compact – R5976568 – Revision 14 – September-2007
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3-8
3.2.3 Overlay Input Card
The overlay input card has an input connector that can be used to integrate digital graphical data with the data
from the SBC. Input can be any graphical data with the appropriate timing and resolution. In particular the over-
lay input card can be used to configure the system for redundant operation, please see section
4.3 Redundant
operation.
Connectors
The current model of the overlay input card OVL IPU /4 provides a DVI-I connector to insert digital data and a D15
connector to insert an external time code signal (LTC or VITC) or a genlock source for synchronization.
2
3
4
1
1 connector LTC, VITC or genlock (D15)
2 input connector (DVI-I) for digital graphic data
3 green LED – DVI input active
4 green LED – active genlock
Figure 3-6
Ports of the overlay input card OVL IPU/4
The green LED [3] on the left indicates, if a signal for the background is active. The green LED [4] on the right
indicates, if a genlock, LTC or VITC signal is active.
Order
The overlay input card is inserted on the right side of the single board computer (looking from back on the H
YDRA
COMPACT) leaving exactly one empty slot between itself and the slot plate of the single board computer.
The timing of the graphical external source should correspond to the timing selected with
the iStudio GUI (Setup Module – Timing).
The DVI connector provides DDC timing information to enable a graphic output device with
DDC capability to adapt to the required timing.