Glossary Of Terms

Terms and definitions used by REM.

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Threshold
Values at which an Alarm or Clear Event is generated by the system. Thresholds are set for Critical Low (low reading Alarm), Warning Low (low reading Pre Alarm), Warning High (high reading Pre Alarm), Critical High (high reading Alarm), Rate of Change Warning (Rate of Change Pre Alarm) and Rate of Change Critical (Rate of Change Alarm). Thresholds are not sensor, vendor or hardware specific, but apply to Gross Types.
Topology
The arrangement of Geography and Devices. This is a tree like structure, with each device being in a location. Devices may be placed in Towns/Cities, Buildings, Rooms or Cabinets.See also: Commission, Decommission, Zone
Trap
A type of SNMP message, sent to the server by a remote device.