The configuration of an output transport stream can be divided into the following groups:
Components
Transport Stream
Service
Components
Components are generated by the option cards. A single component from an option card can be assigned to up to 8 services.
See the sections describing each option card for details of how to configure each type of component.
Transport Stream
The following parameters define an output transport stream:
Service
Parameter
Range
Comments
TS Pkt
1 to 7
Defines the number of MPEG Transport Stream
packets (188 bytes) which are encapsulated in
every IP packet. The default is 7 because it gives
the lowest data rate overhead due to the IP
encapsulation.
Bit rate
10 kbps to 216 Mbps
Defines the MPEG Transport Stream bit rate.
IP Encapsulation
UDP [default]
RTP
RTP/FEC Column
RTP/FEC Column and Row
Controls whether an RTP header is included in
every IP packet.
Number of Rows
4 to 20
If the IP encapsulation is set to included FEC
Column and Row, the number of rows used for
FEC.
Number of Columns 4 to 20
If the IP encapsulation is set to included FEC
Column (and Row), the number of columns used
for FEC.
Alignment
Block Aligned
Non Block Aligned
SI Level
Off
On (PAT/PMT only)
On (PAT/PMT/SDT/CAT
Controls whether a PAT and PMT is included in
the output transport stream.
Dest. IP Address
xxx.xxx.xxx.xxx
The destination IP address to be used for the
transport stream.
Dest. Port
0 to 65536
The destination IP port used in the UDP header.
Source Port
0 to 65536
The source IP port used in the UDP header.
TTL
1 to 255
The Time To Live value to be included in the IP
header. This value is decremented every time the
packet passes through a device such as a switch.
When TTL reaches 0 the packet is discarded.
TOS
0 to 255
(Default 4) Defines the Type of Service field in
the IP Header. The meanings of this bit field are
described in RFC 1349.
Parameter
Range
Comments
PMT PID
32 to 8190
The PID to be assigned to the PMT (Program Management
Table) for the service.
PCR PID
32 to 8190
The PID containing the PCR (Program Clock Reference).If the
PCR is embedded within one of the components within the
service, then this should be set to that components PID,
otherwise the PCR PID will be used for a separate component
that only carries the PCR for the service.
© Ericsson AB 2011. All rights reserved
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