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198 FSN Series • User’s Guide • Rev 01
5. Menu Orientation
System Menu
~ If External is selected with the {Ref Input} button, one of three different
labels will be shown.
•
External, Locked @ [rate] — if reference video is detected
and locked.
•
External, Missing — if reference video is missing. In this case,
the field will be red.
•
External, Not Locked — if a signal is detected but not locked.
In this case, the field will be red.
• Video Reference Output — lists the reference video signal that is currently
available on the
REF OUT connector, on the System card’s I/O. Please note:
~ If Tri-level is selected with the {Ref Output} button, “Tri-level” is shown
in the table.
~ If Burst is selected, “Black Burst” is shown in the table.
The following functions are provided in the
Tool Bar:
• Press {Ref Input} to display a pop-up which offers two reference options:
~ Free Run — selects the FSN-1400’s internal sync generator as the
reference source.
~ External — selects the REF IN connector on the System Card. One of
three external signals can be connected, as shown in the following table:
Note
If the reference is locked but the rate is incorrect (for the
selected native format), the entire field will be red. In
Appendix A, refer to the “
Reference Video Input
Specifications” section on page 433 for additional
information about valid video reference frame rates.
Ref
Input
External
Important
If Free Run is selected, the external Cut and Fill DSK inputs
can not be used. In this condition, the
{External Key} button
on the
Keyer Menu for the DSK will be grayed out.
Table 5-3. External video reference input signals
Reference Signal Requirements
Bi-level sync Signal meets SMTPE 170M timing requirements.
Tri-level sync Signal meets SMPTE 274M timing requirements for analog sync for
1080i standards, and SMPTE 296M timing requirements for analog
sync for 720p standards.
Black burst Signal meets SMTPE 170M timing requirements.
Note
If External is selected, ensure that the proper signal is
connected to the
REF IN connector on the System Card. In
Appendix A, refer to the “
Reference Video Input
Specifications” section on page 433 for detailed information
about the allowed frame rates for the reference input.