National Instruments PXI-1031 User Manual page 34

Appendix A Specifications
Chassis Cooling
NI PXI-1031/PXI-1031DC User Manual
Efficiency................................................>65% at full load, normal input
Power disconnect ....................................The AC power cable provides
DC Output
DC current capacity (I
Voltage
+3.3 V
+5 V
+12 V
–12 V
Over-current protection ..........................All outputs protected from short
Overvoltage protection ...........................114% to 145% above nominal
Per slot cooling capacity.........................25 W
Slot airflow direction ..............................P1 to P2, bottom of module
Module cooling
System .............................................Forced air circulation (positive
Intake ...............................................Bottom of chassis
Exhaust ............................................Along rear, right side, and top of
voltage
main power disconnect. The
front-panel power switch controls
the internal chassis power supply
that provides DC power to the
CompactPCI/PXI backplane.
)
MP
circuit and overload
output voltage
to top of module
pressurization) through a High
Flow fan with HIGH/AUTO
speed selector
chassis
A-2
0–50°C
12 A
17 A
2 A
0.8 A
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