Examples of Use 155
ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
10.6.1 Signal empty PLPs
If however a CP560 loses input sync, the TNS541 will not detect this in any way. The reason
for this is that the rate of T2-MI layer is independent of the input bitrate. If a PLP is empty, i.e.
contains no payload data, the T2-MI stream will therefore be unaffected.
The CP560 has an option to set the Transport Error Indicator in the Transport Stream header
of the T2-MI PID if any of the PLPs are empty. If this flag is set, the TNS541 will be able
to detect this immediately and switch away from that input. This is not however the default
configuration of the TNS541, and the reader is referred to the TNS541 User’s Manual on how
to set up switching on Transport Error Indicator.
The option for setting the Transport Error Indicator in the CP560 is by default turned off. See
section
8.6.4.4 for how to enable this feature.
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