Operating instructions, 9501-dcda function submenu list and descriptions – Cobalt Digital OBSIDIAN 3G 9501-DCDA-3G Downconverter User Manual
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9501DCDA-OM (V1.3)
9501-DCDA PRODUCT MANUAL
3-15
Operating Instructions
9501-DCDA Function Submenu List and Descriptions
(continued)
LTC Input (audio LTC) controls described below only appear on cards with +LTC licensed optional feature. This
feature allows bidirectional conversion between SMPTE VANC timecode and LTC timecode on audio interfaces.
• Timecode Source Status Displays
Displays the current status and contents of the four supported external
timecode formats shown to the left.
• If a format is receiving timecode data, the current content (timecode
running count and line number) is displayed.
• If a format is not receiving timecode data, Not Present is displayed.
• Source Priority
Selects the priority assigned to each of the four supported external
formats, and internal Free Run in the event the preferred source is
unavailable.
Source Priority 1 thru Source Priority 4 select the preferred format to be
used in descending order (i.e., Source Priority 2 selects the second-most
preferred format, and so on. See example below.)
Input LTC Audio is shown only when card has +LTC license. This priority
selects audio LTC received over any embedded channel using the
LTC Input drop-down.
Note: Disable Output setting should be used with care. If Disable Output is selected with alternate intended format(s) set as a
lower priority, the card will indeed disable all timecode output should the ordinate preferred format(s) become unavailable.
Typically, choices other than Disable should be used if a timecode output is always desired, with Disable only being used to
remove all timecode data.
Table 3-2
9501-DCDA Function Submenu List — continued
•
•
•
In this example, even though
and ATC_LTC could be
available to substitute for
ATC_VITC not being present,
the card will revert to no
timecode output since the
choice of Disable Output
“out-prioritizes” ATC_LTC
with these settings.
The choices shown here
will allow ATC_LTC to
“out-prioritize” Disable
Output if ATC_VITC is
not available.