Sencore DMG 3000, User Manual

Page: 182 / 306

DMG 3200/3100/3000 – User Manual
Page 182 (306)
The following information is translated:
Service name
(DVB) SDT

(VCT) Short channel name
(VCT) Short channel name

(DVB) SDT
Audio AC3 descriptor
The AC3 audio component is signaled with different stream type in DVB and ATSC.
DVB stream type in PMT: 0x06
ATSC stream type in PMT: 0x81
In DVB the AC3 component has an additional AC3 descriptor in the PMT.
DVB

ATSC: Changes stream type and removes AC3 descriptor.
ATSC

DVB: Changes stream type and adds the Additional AC3 descriptor.
PID Ranges
DVB reserved PID range: 0

31
MPEG/ATSC reserved PID range: 0

16
The conversion from ATSC

DVB may therefore involve remapping of component PIDs if the
incoming PIDs are in the reserved output range.
7.6.11 SI Domain Support
The SI Domain allows for multiple outputs to be defined with the same DVB triplet (NET ID, TS
ID, SID) as some system designs require one unit to transmit on two different output domains,
e.g. IP and cable.
In the domain concept, each domain is independent of each other with respect to SI validation
and generation. In other words, within a unit the same output triplet, ie
Network/Transport/Service ID, can be used as long as they belong to a separate domain.