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3. Click the Reference Source button and select
an internal or external reference source.
Frame Sync and Format
Conversion
The switcher has multiple input frame synchronizer /
format converter (FSFC) and input de-interlacers
that can be used to convert video input signals to the
format that the switcher is operating in, as well as
correct mistimed, or drifting, video input signal. The
frame synchronizers cannot completely correct badly
formatted video, mistimed switches, signal drops, or
similar issues.
Each FSFC channel maintains a separate setting
for different video formats. This lets you change
between video formats without losing FSFC channel
configurations.
Keep the following in mind when working with
Frame Synchronizers and Format Converters:
• If a video format not compatible with the currently
defined conversion is used, the video image is
frozen with the last successfully processed image
frame.
• FSFCs create a one-frame delay in the video
output of the switcher for the video signal being
converted.
• FSFCs strip embedded audio data from the video
signal. Ensure that no FSFC channels are assigned
to any input or bus you are using with external
audio mode.
• The FSFCs used in the switcher conform to
the SMPTE ST 125:2013 standard. Some older
equipment may not fully conform to the current
standards and can send out-of-spec video to the
switcher which can have unexpected results.
Supported FSFC Video Formats
FSFCs can only convert between specific video
formats at a given frequency.
• The switcher supports synchronized and
unsynchronized 1080p and 1080i inputs. The 1080i
inputs are converted using a 4-line interpolator and
may result in lower quality video.
Table 4: Supported FSFC Input and Output Formats
Input Switcher Output
1080p 59.94Hz 1080p 59.94Hz
1080i 59.94Hz
720p 59.94Hz
1080p 59.94Hz
Input Switcher Output
1080p 50Hz 1080p 50Hz
1080i 50Hz
1
720p 59.94Hz
1080p 50Hz
1080p 29.97Hz 1080p 29.97Hz
1080p 59.94Hz
2
1080p 29.97Hz
1080p 25Hz 1080p 25Hz
1080p 50Hz
2
1080p 25Hz
1080i 59.94Hz 1080i 59.94Hz
1080p 59.94Hz
720p 59.94Hz
480i 59.94Hz
1080i 59.94Hz
1080i 50Hz 1080i 50Hz
1080p 50Hz
720p 50Hz
576i 50Hz
1080i 50Hz
720p 59.94Hz 720p 59.94Hz
1080p 59.94Hz
720p 59.94Hz
720p 50Hz 720p 50Hz
1080p 50Hz
720p 50Hz
576i 50Hz 576i 50Hz
1080p 50Hz
1080i 50Hz
720p 50Hz
576i 50Hz
480i 59.94Hz 480i 59.94Hz
1080p 59.94Hz
1080i 59.94Hz
720p 59.94Hz
480i 59.94Hz
Notes
•
1
Converted using either a simple line-doubler or
4-line interpolater and may result in lower quality
video.
•
2
Converted by dropping frames and may result in
lower quality video.
To Set Up Input FSFC
Input mode locks a specific FSFC channel to a specific
input. Refer to Supported FSFC Video Formats on
page 25 for a list of compatible video format
conversions.
Carbonite Black UltraChrome User Manual (v1.0) — Video Reference • 25