EXFO FTB-8510B Guia Del Usuario página 1114

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VCAT RX - Overview
Group Members
Member indicates the timeslot number.
ExSQ (Expected Sequence Indicator): Indicates the member's
selection order from the test setup. The first member selected bears
the sequence indicator "0". The ExSQ number of each member can be
changed when Enable LCAS is disabled. Click on a specific member
ExSQ number and enter the new number. Possible values are from
0 to 63.
Note: The ExSQ number(s) changed will only take effect when the Apply ExSQ
button is pressed.
SQ (Sequence Indicator): Indicates the received member sequence
indicator.
Alarm Analysis for HOP
464
LOM (Loss Of Multiframe): A LOM is declared when a OOM1 or
OOM2 is present while the whole H4 is not recovered within 48
STS-1/STS-3c or VC-3/VC-4 frames. The LOM state is cleared when
both multiframe alignment processes are in the in-multiframe state
IM1 (Stage 1) and IM2 (Stage 2).
OOM1 (Out-Of-Multiframe of stage 1): A OOM1 is declared when
an error is detected in the MFI1 sequence. The OOM1 state is
cleared when error-free MFI1 sequences are found in four
consecutive STS-1/STS-3c or VC-3/VC-4 frames, then a IM1 state is
declared.
OOM2 (Out-Of-Multiframe of stage 2): A OOM2 is declared when
an error is detected in the MFI2 sequence or the first multiframe
stage is in the OOM1 state. The OOM2 state is cleared when IM1
state is declared while error-free MFI2 sequences are found in two
consecutive first-stage multiframes, then a IM2 state is declared.
FTB-8100 Series Transport Blazer

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