EXFO FTB-8510B Guia Del Usuario página 1135

Alarm Analysis
TLCR (Total Loss of Capacity Receive): The TLCR alarm is declared
when the number of active member equal zero while the number of
provisioned member is bigger than zero.
PLCR (Partial Loss of Capacity Receive): The PLCR alarm is declared
when the PLCR Threshold is reached while both numbers of active
member and provisioned member are bigger than zero.
FOPR (Failure of Protocol Receive): The FOPR alarm is declared when
persistent CRC or SQNC is present.
SQNC (Sequence Indicator Non-Consistent): The SQNC alarm is
declared when the members that carry the NORM, DNU or EOS
message do not have a unique sequence indicator.
Note: Refer to Alarm/Error Measurements on page 47 for H/C LEDs and Seconds
information.
Alarm Generation
Type
UMST (Unexpected Member Status): The UMST is generated by
constantly forcing a MST = OK for the selected SQ that is not currently
used in the VCG.
SQ (Sequence Indicator): Allows selecting the SQ number for the
selected alarm to be generated. Possible values are from 0 to 63 for
LOP or 0 to 255 for HOP . The default setting is 1.
Note: Only SQ members not currently used in the VCG are available.
On/Off button: The On/Off button is used to activate/deactivate the
selected alarm. This setting is disabled (Off) by default.
SONET/SDH Application
Next-Generation Tabs
LCAS Sink
485