GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
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Copy and Redistribution Control (CGMS)
The Presence icon is green when CGMS information is detected within incoming SD line 21 (CEA-608) or HD (CEA-
708 NTSC bytes) closed-captions, and gray otherwise. This presence icon is held green for 10 seconds after CGMS
information has stopped being detected.
Note:
In order for CGMS information to appear at the outputs, you must enable Closed Captions insertion for the
intended output. The control is found on the Video Outputs/Meta/Meta subtab; see section 5.5.4.2 on page 51.
Insertion:
Use the pulldown to turn insertion ON or OFF.
•
When ON, information is inserted according to the selection made in the CGMS-A pulldown and the
Redistribution Control Descriptor (RCD) checkbox. Any incoming information is overwritten.
If no closed-captions are detected at the input, this feature will effectively become a CGMS generator.
•
When OFF, any incoming CGMS information is passed through untouched.
Insertion: Use the pulldown to turn insertion ON or OFF.
•
When ON, information is inserted according to the selection made in the CGMS-A pulldown. Any incoming
information is overwritten.
•
When OFF, any incoming copy/distribution information is passed through untouched.
CGMS-A options:
•
Copying permitted
•
No more copies
•
One copy permitted
•
No copy permitted
Redistribution Control Descriptor: select this checkbox to force the RCD bit found within the CGMS XDS packet to 1.
For a full description of CGMS control and its purpose, refer to the CEA-608 standard.
5.5.4.6 Meta / Teletext sub-tab
In
50 Hz operation only
, incoming OP-47 packets in HD
signals can be converted to Teletext and inserted in the SD
output. This panel configures this functionality.
HD Inputs
– incoming OP-47 packets in the HD signal are
converted to Teletext and inserted in the outgoing SD signal.
•
The
Incoming Teletext Presence
indicators 7 to 22
represent SD line number data detected in any
incoming OP-47 packet. For example, if presence
indicators 8 and 10 are turned on, this indicates
detected OP-47 data is carrying teletext data derived
from (or targeted for) SD lines 8 and 10.
•
The
SD Output Teletext Insertion Lines
checkboxes
are used to select the SD output lines that can receive
Figure 5.35 Video Outputs SD - Meta/Teletext tab