Keysight PXIe Chassis Family User Guide 35
The Chassis Alarm Architecture PXIe Chassis Management Capabilities
The Chassis Alarm Architecture
The chassis provides eight alarms to assist you in monitoring the chassis. For
example, you can set a temperature alarm threshold such that, if a chassis
temperature sensor reports a temperature above the threshold, an alarm is
generated. Alarms can be set and monitored using either the SFP or
programmatically. The eight alarms are:
– Five voltage rails (+3.3 V, +5 V, +12 V, –12 V, 5.0V_STANDBY) either higher
or lower than specified thresholds.
– Chassis air temperature higher than specified threshold.
– Fan Speed slower than specified threshold.
– 10 MHz Reference Clock changed.
Chapter 4, “Chassis Alarm Architecture” describes the chassis alarm architecture,
including the functionality that is provided in hardware and the functionality that
is provided in software. The chapter also describes how alarms operate if
multiple processes are using the same alarm.
If a fan stops completely, the chassis shuts down.
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