Raritan PX2-1000 SERIES, Руководство пользователя

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Appendix J: Additional PX Information
593
Thresholds and Sensor States
A numeric sensor has four threshold settings: Lower Critical, Lower
Warning, Upper Warning and Upper Critical.
The threshold settings determine how many sensor states are available
for a certain sensor and the range of each sensor state. The diagram
below shows how each threshold relates to each state.
above upper critical
Upper Critical
above upper warning
Upper Warning
normal
Lower Warning
below lower warning
Lower Critical
below lower critical
Available sensor states:
The more thresholds are enabled for a sensor, the more sensor states
are available for it. The "normal' state is always available regardless of
whether any threshold is enabled.
For example:

When a sensor only has the Upper Critical threshold enabled, it has
two sensor states: normal and above upper critical.