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7814UDX-4K Series
HD/3G/UHD Up/Down/Cross Converters
Pass Through
Duplicate Packet
Field 1 Only
Field 2 Only
ANC Packet Pass Thru Status: This monitoring window returns the current state of the ANC Packet Pass
Thru module. This will display if the control is disabled or passing the incoming ANC data. If there is no
ANC data present on the input, this control will indicate Not Detected.
5.12.2. Direct ANC Pass Thru Control
The Direct ANC Pass Thru mode of operation routes all ancillary data in both HANC and VANC frame
accurately from input to output. This mode of operation is designed for the use case when the input video
standard and output video standard are identical. Additionally, Direct ANC Pass Thru will also support
passing SD-VBI waveforms from input to output.
All packets that are processed by the module itself (For example: Source ID) are safely blocked from
passing from input to output while operating in Direct ANC Pass Thru.
Key Functional Notes of Direct ANC Pass Thru:
•
Only supported when Input Video Standard is identical to the Output Video Standard.
•
Direct ANC Pass Thru overrides Mapped ANC Pass Thru when it is enabled and Input Video
Standard is identical to the Output Video Standard.
•
When Direct ANC Pass Thru is disabled or invalid, Mapped ANC Pass Thru rules are applied.
•
Supports SD-VBI wave pass through for SD video.
•
ANC packets processed by the system (For example: Source ID) will be blocked from passing
through to avoid duplicate entries on the output video.
Direct ANC pass Thru: This control allows the user to enable or disable Direct ANC Pass Thru for ANC
data that is not processed through the module to pass through without getting striped on the output video
signal.
NOTE: Direct ANC PassThru is only functional when input and output video standards
are identical.
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When set to Pass Through the module will take ANC packet from frame 1 and
insert onto field 1 and data on frame 2 will be inserted onto field 2.
When set to Duplicate Packet, the module will embed data from frame 1 on to
both field one and two on the output.
When set to Field 1 Only, the module will only embed the incoming packets
onto Field 1 on the output.
When set to Field 2 Only, the module will only embed the incoming packets
onto Field 1 on the output.
Revision 1.2
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