EXFO Power Blazer 88200NGE, User Manual

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Test Results
400
88000 Series
Alarms/Errors Overview
DS3
Alarms

AIS
(Alarm Indication Signal)
RX : The M-frame contains zeros (0) for C-bits, ones (1) for X-bits,
1010... repeating sequence with a one (1) immediately following any of
the control bit positions for the information bits.

Idle
(DS3 Idle)
RX : Subframe 3 of the M-frame contains zeros (0) for the three C-bits,
ones (1) for X-bits, 1100... repeating sequence with the first two bits
following each control bit set to 11 for the information bits.

OOF
(Out-OF-Frame)
RX : Four consecutive frame bit errors are detected.

RDI
(Remote Defect Indicator)
RX : Both X-bits of the M-Frame are set to “0”.
Errors

CP-Bit (Control-Bit)
RX
: The three C-bits reserved to control bit stuffing are different of
“111” and “000”.

F-Bit
(Framing-Bit)
RX : The frame alignment pattern received is different of “1001”.

P-Bit
(Parity-Bit)
RX : The P-Bits does not match the parity of all the information bits
following the first X-Bit of the previous DS3 frame.

FEBE (Far-End Block Error)
RX
: The three FEBE bits reserved for framing or parity error detection
contain the “000” pattern.