The fault management capabilities of FOXMAN-UN reduce the effects of errors on the service quality by means of functions for alarming, error retrieval, and testing. The alarms in all network elements (e.g. loss of signal, loss of synchronization, loss of frame, etc.) are continuously supervised to detect state changes.
FOXMAN-UN supports five different alarm severity levels according to the TMN standards; the severity of individual alarms may be modified by the operator.
Network elements and sections are displayed in different colors, according to their alarm state. If an alarm is detected, the color of the icon is changed. The operator can get more information about the alarms by clicking on the icon.
Alarms can be traced down to the smallest replaceable unit (e.g. card), and further down to channel/ subunit level.