EXFO FTB-8100 Series Transport Blazer for FTB-200 - Manual (Page 395)

System Tab
SONET/SDH Application 383
Default Test Preferences
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SmartMode - Launh Test
Allows the configuration of the default TX/RX Test Pattern that will be
used when starting a test case using SmartMode.
Test Pattern: Select the test pattern from the list. Choices are PRBS
2^31-1, PRBS 2^23-1, PRBS 2^20-1, PRBS 2^15-1, PRBS 2^11-1,
PRBS 2^9-1, 1100, 1010, 1111, 0000, 1in8, and 1in16.
Invert: Allows the inversion of the test pattern. When enabled, every 0
in the pattern will be changed for 1 and every 1 for 0. For example the
pattern 1100 will be sent as 0011. This check box is cleared by default.
RX Live Traffic: Analyzes the line traffic without test pattern thus
squelching the pattern loss and bit error indication. This check box is
cleared by default meaning that the Test Pattern and Invert
configuration will be used as well for the RX direction.
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Background Traffic
The Background Traffic is used to generate traffic on the
channels/paths/timeslots that are not part of the defined test.
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OTN
Allows the selection of the ODU multiplexed background traffic.
Choices are AIS, NULL Client (All Zeros), and PRBS31 pattern.
For ODU2 background traffic (ODU1 client):
The above example shows that ODU2 that contains ODU1
foreground traffic uses ODU1 background traffic.