This OID stores an unsigned integer threshold for severely errored seconds accumulated across a 24-hour monitoring window on Tandem Connection Monitor B. When this threshold is exceeded, it signals that the optical path has experienced multiple critical degradation events, indicating possible fiber damage, equipment failure, or environmental factors requiring urgent remediation. An example threshold of 10 seconds would mean that if severe errors exceed 10 seconds in total over the day, a major alarm is generated for immediate investigation.