Chapter 2
Installation and Configuration
©
National Instruments Corporation
2-3
Figure 2-1.
PXI-1044 Chassis Airflow Side View
Install the chassis so that you can easily access the rear panel. This
simplifies replacing the air filters or power supply shuttle, if necessary.
Setting Fan Speed
The fan-speed selector switch is on the rear panel of the PXI-1044. Refer
to Figure 1-2,
Rear View of the PXI-1044 Chassis
, to locate the fan-speed
selector switch. Select HIGH for maximum cooling performance
(recommended) or AUTO for quieter operation. When set to AUTO,
the fan speed is determined by chassis intake air temperature.
Installing Filler Panels
To improve module cooling performance, install filler panels (provided
with the chassis) in unused or empty slots. Secure with the captive
mounting screws provided.
Installing Slot Blockers
The cooling performance of the chassis can be improved by installing
optional slot blockers. Visit
ni.com/support
to read the National
Instruments KnowledgeBase article 2S4928ON,
PXI Slot Blockers and
Improved PXI System Cooling Performance
, for more details.
1
Air Outlets
2
Air Intake
1
2