Cobalt Digital Inc 9323 Product Manual page 77

Operating Instructions
Table 3-2 932X Group Function Submenu List — continued
Audio LTC and RS-485 LTC controls described below only appear on cards with +LTC licensed optional
feature. This feature allows bidirectional conversion between VBI-based timecode and LTC timecode on audio and RS-485
interfaces.
• Timecode Source Status Displays
• Incoming ATC Packet Removal Control
• Source Priority
SDI VITC
ATC_LTC
ATC_VITC
Audio LTC
9323G-OM (V4.6)
VITC waveform from SD SDI
video input
HD SDI ATC_LTC
SD/HD SDI ATC_VITC
Audio-based LTC from
selected card audio input
channel
9323 GROUP PRODUCT MANUAL
932X Group Function Submenu List and Descriptions
(continued)
Displays the current status and contents of the supported 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, Unlocked is displayed.
• If Audio LTC is being received, the timecode running count is
displayed.
• Audio LTC Source selects audio source to be used by card audio
LTC function as listed below.
• Emb Ch 1 thru Ch 16
• AES Ch 1 thru Ch 16
• Analog audio Ch 1 thru Ch 8
Note: Audio LTC Source must be appropriately set for card to
receive and process audio LTC. De-embed only card (9322)
has only Emb Ch 1 thru Emb Ch 16 for selection choice.
Enables or disables removal of existing input video ATC timecode packets
from the output. This allows removal of undesired existing timecodes from
the output, resulting in a "clean slate" where only desired timecodes are
then re-inserted into the output. (For example, if both SDI ATC_VITC and
ATC_LTC are present on the input video, and only ATC_LTC is desired,
using the Removal control will remove both timecodes from the output.
The ATC_LTC timecode by itself can then be re-inserted on the output
using the other controls discussed here.)
As described here, provides 4-level prioritization of timecode format
choices from choices shown to the left.
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.)
HD/SD
SDI IN
525i
SDI VITC
(1st priority)
Audio LTC
(2nd priority)
In this example, SDI VITC 1st priority selection selects SDI VITC (received on SDI
input) over audio LTC (received on a selected card audio input channel).
The selected timecode source is embedded on the SDI video output using the
selected line number. In this example, if the SDI VITC on the SDI input becomes
unavailable, the card then uses the audio LTC data received on a selected card
audio input channel.
SDI
OUT
525i
(w/ SDI_VITC)
TC
3-27