Exfo FTB-8500 Series for FTB-200 Manuel d'utilisateur Page 263

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Pattern Tabs
Ethernet and Fibre Channel Application 249
Pattern RX
Pattern RX
Press Main, Test, Pattern, and Pattern TX.
Configuration
Note: See Configuration on page 246 for more information on Te st Pa ttern,
Invert, and User Pattern.
Alarm Analysis
Pattern Loss
For Ethernet, a Pattern Loss is declared when the test sequence and the
reference sequence can be unambiguously identified as out of phase.
For Fibre Channel, a Pattern Loss is declared when at least four
consecutive words having at least one bit error are detected causing a loss
of pattern synchronization. Not supported on FTB-8510G.
No Traffic is declared when no pattern traffic has been received in the last
second.
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