EXFO FTB-860, User Manual

Page: 347 / 409

Common Test Setup, Results, and Functions
NetBlazer
335
Alarms/Errors - WIS
Alarms/Errors - WIS
When 10G WAN is selected as the interface type, additional monitoring is
performed by the WIS Analyzer for RFC 2544, EtherBERT, and Traffic Gen &
Mon tests.
From the Test menu, press Results , Alarms/Errors , and the WIS tab.
Alarms

SEF (Severely Errored Framing): A SEF defect indicates that a
minimum of four consecutive errored framing patterns are received.

LOF
(Loss Of Frame): A Loss Of Frame alarm indicates that a Severely
Error Framing (SEF) defect on the incoming SONET signal persists for
at least 3 milliseconds.

AIS-L (Alarm Indication Signal - Line): The AIS-L alarm is declared
when bits 6, 7 and 8 of the K2 byte contain the “111" pattern in five
consecutive frames.

RDI-L
(Remote Defect Indication - Line): The
RDI-L
alarm is declared
when bits 6, 7, and 8 of the K2 byte contain the “110" pattern in five
consecutive frames.