THOMSON Amethyst III, User Manual, Page: 151 / 306

Chapter 3 ’Web Browser Interface’ — Interface Description
Amethyst III DTV Smart Switch 151
User Manual
Stuffing Max Bit Rate
(and Stuffing Absence) This test checks that there are not too many stuffing
packets (PID 0x1FFF) in the TS.
Define the threshold in the
Maximum bit rate field, in
percentage of the TS total rate. An alarm is raised if the
stuffing percentage is greater (not strictly) than the
threshold.
You can also set the
Measurement duration , in
milliseconds.
This test may be used to verify the absence of stuffing.
Set
maximum bit rate to 0%, and an alarm will be raised
if a stuffing Transport Packet is received.
NOTE: Stuffing tables (TID 0x72) are not taken into
account in this test.
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Stuffing Min Bit Rate This test checks that there are enough stuffing packets
(PID 0x1FFF) in the TS.
Define the threshold in the
Maximum bit rate field, in
percentage of the TS total rate. An alarm is raised if the
stuffing percentage is lower (not strictly) than the
threshold.
You can also set the
Measurement duration , in
milliseconds.
NOTE: Stuffing tables (TID 0x72) are not taken into
account in this test.
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Sub-Table Maximum
Interval on PID This test checks that, for a given table, sections period
do not exceed a given threshold.
You shall set the following parameters:

PID : enter the value of the PID to consider.

TID : enter the value of the TID to consider.

Table Type : select from the drop-down list the
entry corresponding to the number of TidExt for
the configured TID. For instance, an SDT is
considered as a Private 2 TidExt table, a PMT is
considered as a Private 1 TidExt table and a CAT is
considered as a Private 0 TidExt table.

TID ext [n] : depending on the table type, check the
box if you want to perform the test on this TidExt
and enter the TidExt value.
An alarm is raised if the interval between two
occurrences of the sub-table is greater than the value set
in the
Maximum period field, in milliseconds.
You can add this test several times for several PIDs.
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Table 3-14. Template checking tests
Format Persistence
Test Description
AS
I
31
0M
GigE Opti
onal/Mand
ator
y
Dura
ti
on
Uppe
r t
h
re
sho
ld
L
o
w
e
r t
h
re
shold