Nortel DMS-100 Series Reference Manual page 21

Introduction 1-7
Software alarms
Software subsystems not represented on maintenance system status displays
at the MAP terminal can also generate alarms. Table SFWALARM
integrates these alarms into alarm system software. The EXT subsystem
reports these alarms to operating company personnel.
The system datafills table SFWALARM. You can change entries in this
table, but you cannot be add or delete entries.
DMS-100 Family Alarm System Description Reference Manual BASE12