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6.4. Genlock settings
The genlock settings can be accessed by clicking the Genlock... button on the right in the
Control menu view. Please be patient, as loading the settings can take several seconds.
The genlock circuit can take the below signal types as reference:
Tri- or Bi-level video sync When Standard Definition Black Burst or HD Tri-level sync
TTL signal
Preview output
Test input
There are separate parameter tables for video sync, DVI and TTL references.
Please note that genlocked switching occurs whenever an appropriate genlock source is
set up, disregarding the actually switched signal's type. Each switch will be done
synchronous to the Genlock source. If there are standalone (not genlocked) sources
connected to the matrix, they will be switched synchronous to the genlock signal, but as
they are not genlocked, the switching is not guaranteed to be in the blanking interval. Of
course this does not cause any problems, because timing of switching signals that are not
genlocked are irrelevant anyway.
6.4.1. Locking to video sync
The synchronization signal is taken from the BNC connector. The video-sync table stores
genlock settings for up to ten different video formats.
Video formats are defined with the number of active lines, and a "P" or "I" letter according
to the progressive or interlaced signals. Each video format has its own settings for
appropriate switching. To edit a row in the table, click the Edit button.
Format
Odd fields
Section 6. Software control – Using Lightware Matrix Controller
signal is applied to the Genlock BNC input connector, SD or HD
video formats are recognized by the router. The suitable
genlock settings are used based on the video sync format.
When a TTL sync signal (e.g. Vsync from a graphic card) is
applied to the BNC input connector, switching is locked to rising
or falling edge of a pulsing TTL signal on BNC input.
DVI or HDMI sync signal is used from any input port of the
matrix router that is routed on the Preview output.
DVI or HDMI sync signal is used for genlocking from the CPU
board's DVI input.
SMPTE standard formats are identified only. Type the number
of active lines followed by "I" or "P".
Switching on odd fields can be enabled or disabled. Set the line
number in which the switching has to be done.
MX-FR series modular matrices
User's Manual
Page 89 / 137
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