Radyne ComStream TIERNAN SE4000, Инструкция по установке и эксплуатации

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SE4000 MPEG-2 Contribution Encoder VBI Data Transmission
01-0934-401-B
B-3
5. Set the data ID to 1. Issue the front panel command Config>Service>VBI>Teletext>Data
ID=1 or the remote TT DATA_ID 1 command.
6.
Set the data unit ID to 2 or 3 as appropriate. Issue the front panel command
Config>Service>VBI>Teletext>Data Unit ID=# or the remote TT UNIT_ID # command
(where # = 2 or 3).
Decoder
7.
Set the decoder VBI format control to manual. Issue the front panel command
VBI>Format>VBI Format Cntrl=Manual or the remote VBI CONTROL MANUAL
command.
8.
Set the VBI format to off. Issue the front panel command VBI>Format>VBI Format= Off
or the remote VBI FORMAT OFF command.
To ensure the proper display of Teletext data, VBI Format must be set to
Off.
9.
Enable Teletext mode. Issue the front panel command VBI>Teletext>Mode=On or the
remote VBI TELETEXT MODE ON command.
10.
Set the type of Teletext standard to be decoded, either the DVB standard or a ve ndor’s
proprietary standard. Issue the front panel command VBI>Teletext>Standard=type or the
remote VBI TELETEXT STANDARD TYPE command.
11.
To specify a particular PID within the selected service that contains Teletext data. Issue
the front panel command VBI>Teletext>PID=PID number or the remote VBI TELETEXT
PID NUMBER command.
B.1.2 ATSC Closed Captions
Tiernan encoders and decoders support industry-standard ATSC EIA-608 closed captions. On
the encoder side, ATSC closed captions, the data found on line 21 is stripped out, placed in the
picture header, encoded and transmitted. At the decoder end, the data is processed and re-
inserted on line 21 for proper broadcasting.
ATSC closed captions are supported on a composite analog NTSC format video signal.
B.1.2.1 Operational Considerations
Ensure that VBI teletext is disabled when closed captions are enabled, as teletext overwrites all
other VBI data.
B.1.2.2 End-to-End Configuration