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EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 User Manual

Page 276

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Test Results

264

FTB/IQS-88000 Series

Alarms/Errors

E3

Alarms

Note: Only AIS is available when the framing is set to Unframed.

AIS (Alarm Indication Signal)

RX: An unframed all-ones signal is received.

LOF (Loss Of Frame)

RX: Four consecutive incorrect frame alignment signals is received.

RAI (Remote Alarm Indication)

RX: Bit 11 of a framed E3 is set to “1”.

Errors

FAS (Frame Alignment Signal)

RX: Bits 1 to 10 of the first frame differ from 1111010000.