Foreign Objects can be assigned alarms generated at the inputs of a special FOX51x unit called ALCAR. These alarms are not reported as belonging to the FOX51x, they are directly associated with their foreign object. Fault cause text and severity and alarm input number are defined via the FOX51x configuration.

Foreign object alarms are handled the same way as alarms of the NE type FOX51x.

FOX61x NEs do not offer a corresponding alarm collection unit.