Atec Acterna-DTS300 - Manual (Page 3)

MPE/IP Encapsulation
The Analyzer addresses the convergence of Internet and
broadcasting technology by supporting real-time analysis of
MPE/IP data in the MPEG-2 transport stream. For each
PID carrying an IP data stream, the Analyzer provides:
• MAC address
• Encapsulation method (LLC, IP, or both)
• Percentage of stream bandwidth consumed
• Transmission rate (minimum, maximum, current)
• Total megabytes received
• Scrambling status
• Duration of time during which packets have been arriving
• Error and event tracking on the data stream
• MAC/IP mapping
• Transmission mode (unicast, multicast, or broadcast)
• Source IP address
• Destination IP address
• Transport type (TCP or UDP)
The Analyzer’s unique IP trigger extracts IP data from the
MPEG-2 transport stream and saves it to a file for detailed
off-line analysis using Acterna’s DominoNAS IP test suite.
Conditional Access
Conditional access (CA) data in the transport stream protects
broadcasters from unlicensed users attempting to access
services illegally. For each CA system ID in the transport
stream, the Analyzer provides data in a hierarchical tree
structure with easy-to-interpret, formatted views that
include:
• Summary of CA information in the
stream
• Summary by program/channel of
CA information from PSI/SI/PSIP
tables
• EMM and ECM PIDs and rates
• ECM and scrambling key changes
on a program-by-program basis
• Decode and display of private ECM
contents
• Program/channel contents and
characteristics
Event Logging
The Analyzer detects more than 200
different events as they occur on the
transport stream. Because the user
specifies the type of alarm each event should generate,
alarms can be customized to alert the operator of events
such as:
• Stream synchronization errors
• PCR lock, jitter, and spacing
• PID changes, missing PIDs, and PID bitrates out of range
• Transport packet and table structure errors
• Packet loss
• Errors in the transport packet header and adaptation field
• Inconsistency of table versions and content
Easy-to-Use Interface
The Analyzer’s user interface offers a variety of top-level
views that summarize stream contents and statistics and
allow quick drill-down into detailed measurements for
rapid and complete diagnostics. Its easy-to-interpret displays
help users become familiar with the structure and content
of an MPEG-2 transport stream and allow less experienced
users to quickly verify the status of the transport stream and
isolate and troubleshoot errors on the fly. With a single
mouse click on the appropriate display, the user can directly
access:
• Transport stream contents and statistics from a variety of
clear displays
• All events that have occurred on the stream relative to any
one of the measured parameters
• Graphical displays of PCR/PTS timing and historical or
instantaneous rate calculations
• A freeze utility that freezes the display for investigation of
the transport stream context at any time
Analyzer Multiple Views
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