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sensors. The alarm threshold is the temperature the zone can reach before the device moves from
normal to alarm mode. If the module exceeds the shutdown threshold by one degree it causes the
module to shut down.
The zone alarm is triggered after one of the following events occurs:
• A module alarm is triggered.
• Module alarms are cleared.
Heat sensor locations for first generation and second generation I/O modules
The following figure shows the baseboard component of a first generation I/O module on the left and
the PIM component of a first generation I/O module on the right.
Figure 9: Heat sensor locations in a first generation I/O module
The following figure shows the baseboard component of a second generation I/O module on the left
and the PIM component of a second generation I/O module on the right.
Cooling module fundamentals
34
Installing Cooling Modules in Avaya VSP 9000
March 2015