Scientific Atlanta Continuum DVP eXtra Dense QAM Array 24, Configuration Manual

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Changing the Device Settings
PSI Settings
PAT Rate and PMT Rate parameters
The playout rate for the PAT and PMT can be set between 0.0 and 30.0 seconds in
steps of 0.1 seconds. A playout rate equal to 0 disables the playout of the table.
The playout rate for the PAT is default set to 0.1 second and for the PMT to 0.5
seconds.
Stream Configuration Settings
The XDQA24 supports:
-
2 dejitter modes for SPTS streams: VBR (default) and CBR.
-
2 dejitter modes for MPTS streams: Static (default) and Dynamic
Stream Mode SPTS
-
VBR : supports VBR SPTS streams. Bitrates are updated each PCR interval.
Next to this a long term regulation is running.
-
CBR: supports CBR SPTS streams. The bitrate is calculated at startup of the
stream. Only a long term regulation is running. A reset stream mechanism is
covering a bitrate change. This reset will trigger glitches at the output!
Stream Mode MPTS
-
Static: in this mode the bitrate is updated during the startup of the stream.
Only a long term regulation is running.
-
Dynamic: in this mode the bitrate is updated each PCR interval. Next to this a
long term regulation is running.
Note:
-
MPTS that do not have a constant bitrate cannot be de-jittered properly!
-
The buffer FPGA can de-jitter max. 100 ms (incl. network jitter).
4018055 Rev B 21