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KRAMER ELECTRONICS LTD. Issue 1-13 July 28, 2016
5.3 Output
This menu contains adjustments related with the outputs of the unit.
5.3.1 Display Type
5.3.1.1 Output Mode (Resolution)
The selected output resolution should match the native resolution of the imaging device to avoid
double scaling.
The 3GSDI output does not feature the PC resolutions, only 480i/p, 576i/p, 720p and 1080i/p output
modes are supported.
Settings: See the Supported format table
Default : 1920x1080p
5.3.1.2 Frame Rate
As with the output resolution, the output frame rate should match the native frame of the imaging
device. Some frame rates may not be available depending on the selected resolution.
In auto mode the output frame rate follows the input frame rate if it supported by the output resolution.
If the input frame rate is not supported by the output resolution, then the unit determines the output
frame according to a procedure programmed in the software.
Settings: 60 Hz, 59.94 Hz, 50 Hz, 48 Hz, 25Hz, 24 Hz, 23.97, Auto
Default : 59.94Hz
5.3.1.3 I/O Lock
From this menu, the user can select the genlock mode of the unit. If I/O Lock is off, the output free-runs
with a fixed refresh rate determined by the frame rate setting. In this mode, the output vertical refresh
sync deviates slightly from the input vertical refresh sync, even if both are set at the same rate,
occasionally causing frame dropping or repeat.
If I/O Lock is set to On, the output refresh rate follows the input video refresh rate if possible. If not, the
output is operated with a fixed refresh rate determined by the frame rate setting.
If I/O Lock is set to Genlock, the output refresh rate will follow the vertical sync of the signal connected
to the Genlock BNC connector. Genlock is achieved when the Genlock vertical sync rate matches the
vertical sync rate set in the output menu. Valid combinations are 50Hz/50Hz, 59.94Hz/59.94H and
60Hz/60Hz. If genlock is not achieved, the output frame rate refresh rate is determined by the frame
rate setting.
The LCD main status menu indicates the genlock status: (I/O Locked or Genlocked) or in free run mode
(Free Run).
In order to achieve clean switch between input selections, follow the locking settings described in the
table below.