4 psi (program specific information) – Comtech EF Data CMR-8500 Manual User Manual
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CMR-8500 DVB IP Encapsulator
Revision 2
Chapter 4. Device Management via User Interfaces
4.2.4.4
PSI (Program Specific Information)
Figure 4-15. CMR-8500 Web Interface PSI Tab
The CMR-8500 provides support for the MPEG-2 PSI. PSI provides the Program Association Table
(PAT) and Program Map Table (PMT).
The PAT resides on PID 0x0000 and the CMR-8500 allows the user to define the following PID for the
PMT:
• The PMT announces the PID assigned to each valid route for up to 1,000 routes.
• The stream type for a PID assigned to a route will be announced as “DSM-CC” (stream type 0x08).
• In the PAT, each program number will be assigned the corresponding route number.
The PSI Configuration Tab has the following configurable parameters:
•
Enable: The “Enable” PSI Boolean allows the user to enable or disable the PSI information. Most
multiplexers will require the PSI information to be present to identify the input programs.
•
Rate: The rate in tenths of a second the PSI tables (PAT/PMT) will be transmitted to the network. For
example, 4 is a rate of 250ms.
•
PMT PID Base: The first PID number that will be used to announce the available programs to the
network.
•
Transport Stream ID: The transport stream ID provides the identification of this TS from any other
multiplex in the network.
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