SW Version 2.04 30-January-2009 Page 89 of 128
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4.7.4.4 NIT Generation for QAM Networks
The SC2000 is able to generate the NIT including Cable Delivery System Descriptor
for QAM networks. The Cable Delivery System descriptor is defined as part of the
MPTS setup, and the inserted data will be included in the NIT. The fact that the Cable
Delivery descriptor is added in the MPTS node it implies that this descriptor may be
added not only for the QAM output module, but also for the IP MPTS output and ASI
output for streams which will eventually be part of a QAM network.
For an IP output this is possible by adding MPTS nodes, and inserting the QAM
parameters which for the relevant transport streams which then will be added to the
NIT.
For the QAM output the virtual QAM output provides this feature. The virtual output
may be added from the QAM output page (top right in the picture below.)
In the dialog that appears, insert the Network ID, Transport ID and the QAM
information.
Then press Apply.
4.7.4.5 MPTS Transparent Mode
With MPTS Transparent Mode, an input stream is forwarded to the output without any
processing, i.e. output equals input, including null packets (for ASI and QAM, which
are CBR, null packets will be added).
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