Section 8, User Interface Guide - TAP-100, MX2820 Troubleshooting Guide61186003L1-1D 8-17STS-1 MUX ALARM SUMMARY - 1186005L1Table 8-13 provides alarm information for the STS-1 MUX module.Table 8-13. STS-1 Alarm Condition DescriptionsSTS-1 Alarm Condition Description Severity LevelLOS The unit has lost the network receive signal CriticalLOF The unit detects a framing loss from the network CriticalLOP The unit is unable to detect a valid pointer in the receivesignalCriticalLOMF The unit detects loss of H4 multiframe from the network CriticalUEQ-P The path is unequipped if it is not provisioned (Byte C2of the STS path overhead is set to zero)CriticalSLMP The unit detects a mismatch of the C2 byte CriticalAIS-L The unit is receiving a line alarm indication signal (thesection terminating equipment generates AIS-L afterdetecting LOS or LOF)AlertAIS-P The unit is receiving a line alarm indication signal (AIS-Pis defined as all ones in bytes H1, H2, and H3 as well asall ones in the entire STS synchronous payload envelope)AlertRFI-L The unit is receiving a line remote failure indication (RFI-L is declared when the incoming line remote defect indi-cation [RDI-L, “110” pattern in bits 6, 7, and 8 of the K2line overhead byte] lasts for 2.5 ±0.5 secondsAlertRFI-P The unit is receiving a line remote failure indication (RFI-P is declared when the incoming path remote defect indi-cation [RDI-P, “1” in bit 5 of the G1 path overhead bytefor contiguous frames] lasts for 2.5 ±0.5 secondsAlertTIM-P A received signal label is mismatched if it does not equalthe locally provisioned expected valueAlertTEST The STS-1 interface has been placed in a test (loopback)modeAlert
