Table 8-13. Sts-1 Alarm Condition Descriptions; Sts-1 Mux Alarm Summary - 1186005L1 - ADTRAN MX2820 System Manual

STS-1 MUX ALARM SUMMARY - 1186005L1

Table 8-13 provides alarm information for the STS-1 MUX module.
STS-1 Alarm Condition Description
LOS The unit has lost the network receive signal
LOF The unit detects a framing loss from the network
LOP The unit is unable to detect a valid pointer in the receive
signal
LOMF The unit detects loss of H4 multiframe from the network
UEQ-P The path is unequipped if it is not provisioned (Byte C2
of the STS path overhead is set to zero)
SLMP The unit detects a mismatch of the C2 byte
AIS-L The unit is receiving a line alarm indication signal (the
section terminating equipment generates AIS-L after
detecting LOS or LOF)
AIS-P The unit is receiving a line alarm indication signal (AIS-P
is defined as all ones in bytes H1, H2, and H3 as well as
all ones in the entire STS synchronous payload envelope)
RFI-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 K2
line overhead byte] lasts for 2.5 ±0.5 seconds
RFI-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 byte
for contiguous frames] lasts for 2.5 ±0.5 seconds
TIM-P A received signal label is mismatched if it does not equal
the locally provisioned expected value
TEST The STS-1 interface has been placed in a test (loopback)
mode
61186003L1-1D
Section 8, User Interface Guide - TAP-100, MX2820 Troubleshooting Guide

Table 8-13. STS-1 Alarm Condition Descriptions

Severity Level
Critical
Critical
Critical
Critical
Critical
Critical
Alert
Alert
Alert
Alert
Alert
Alert
8-17