This screen contains detailed alarm and error information related to the SDH
interface. Status is indicated by the use of colored Lamp icons.
Alarms
LOSLOS: Loss of Signal
LOFLOF: Loss of Frame
OOFOOF: Out of Frame
MS-AISMS-AIS: Multiplex Section Alarm Indication Signal
MS-RDIMS-RDI: Multiplex Section Remote Defect Indication
AU-AISAU-AIS: Administrative Unit Alarm Indication Signal
AU-LOPAU-LOP: Administrative Unit Loss of pointer
HP-TIMHP-TIM: High order Path Trace Identifier Mismatch
HP-PLMHP-PLM: High order Path Payload Mismatch
HP-UNEQHP-UNEQ: High order Path UNEQuipped
HP-RDIHP-RDI: High order Path Remote Defect Indication
TU-AISTU-AIS: Tributary Unit Alarm Indication Signal
TU-LOPTU-LOP: Tributary Unit Loss of pointer
TU-LOMTU-LOM: Tributary Unit Loss of Multiframe
LP-TIMLP-TIM: Low order Path Trace Identifier Mismatch
LP-UNEQLP-UNEQ: Low order Path UNEQuipped
LP-RDILP-RDI: Low order Path Remote Defect Indication
LP-PLMLP-PLM: Low order Path Payload Mismatch
LSSLSS: Loss of Sequence Synchronization
TC-UNEQTC-UNEQ: Tandem Connection UNEQuipped
TC-LTCTC-LTC: Tandem Connection Loss of Tandem Connection
TC-TIMTC-TIM: Tandem Connection Trace Identifier Mismatch
TC-AISTC-AIS: Tandem Connection Alarm Indication Signal
TC-RDITC-RDI: Tandem Connection Remote Defect Indication
TC-ODITC-ODI: Tandem Connection Outgoing Defect Indication
Errors
A1A2A1A2: Bytes used for the frame synchronization
B1B1: The byte of BIP-8 (Bit Interleaved Parity 8)
B2B2: The bytes of BIP-N×24 (Bit Interleaved Parity N×24)
MS-REIMS-REI: Multiplex Section Remote Error Indication
B3B3: The byte of BIP-8 (Bit Interleaved Parity 8)
HP-REIHP-REI : High order Path Remote Error Indication
V5/B3V5/B3: BIP-2 of VC-12/VC-11 or BIP-8 of Low order VC3
LP-REILP-REI: Low order Path Remote Error Indication
Pattern errorsPattern errors: Bit error detected in the payload
AU-NDFAU-NDF: Administrative Unit New Data Flag
TU-NDFTU-NDF: Tributary Unit New Data Flag
SwitchSwitch: APS switching occurred
TC-IECTC-IEC: Tandem Connection Incoming Error Count
TC-BIP-2TC-BIP-2: Tandem Connection Bit Interleaved Parity-2
TC-REITC-REI: Tandem Connection Remote Error Indication
TC-OEITC-OEI: Tandem Connection Outgoing Error Indication
Pointer Information
AU-PositiveAU-Positive: Administrative Unit Positive stuffing
AU-NegativeAU-Negative: Administrative Unit Negative stuffing
TU-PositiveTU-Positive: Tributary Unit Positive stuffing
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