[CAUSE] Generated when an alarm condition on the gnss timing reference is detected. The type of alarm (los, oof, etc) is indicated in the details of the log event or alarm, and is also available in the tmnxSyncIfTimingNotifyAlarm attribute included in the SNMP notification. The SNMP notification will have the same indices as those of the tmnxCpmCardTable. [EFFECT] Timing reference gnss cannot be used as a source of timing into the central clock. [RECOVERY] Address issues with the signal associated with timing reference gnss.