THOMSON Amethyst III, User Manual, Page: 142 / 306

Chapter 3 ’Web Browser Interface’ — Interface Description
142 Amethyst III DTV Smart Switch
User Manual
PCR Accuracy (2.4) This test checks PCR accuracy.
The method applied for checking the
PCR_accuracy_error is based on previous PCR value and
PCR arrival time in the Amethyst III interface.
PCR_accuracy = |(PCRvalue n - PCRvalue n-1) - (PCRtime
n - PCRtime n-1)|
Enter a value in the
PCR accuracy field. An alarm is
raised if the PCR_accuracy exceeds the configured
value.
 
— M
  
PTS Error (2.5) This test checks PTS repetition period.
An alarm is raised if the interval between two PTS
occurrences is greater than the value set in the
Maximum period without PTS field, in milliseconds.
 
— M
  
CAT Presence (2.6.1) If scrambled components are present
(transport_scrambling_control different from 00), the
CAT is needed. This test checks CAT presence (and
periodicity) if scrambled packets are detected.
Enter a value in the
Maximum period without CAT field,
in milliseconds.
This test checks the first part of the test 2.6 CAT_error of
TR 101 290.
  
O
  
PID 1 CAT (2.6.2) This test checks the Table Identifier (TID) of the sections
that are found on PID 1. The only TID that should be
found is 1 (CAT).
There are no specific parameters to set.
This test checks the second part of the test 2.6 CAT_error
of TR 101 290.
  
M
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Table 3-10. TR 101 290 Level 2 Tests
Format Persistence
Test Description
AS
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31
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