Appendix A
Specifications
NI PXI-1031/PXI-1031DC User Manual
A-6
ni.com
Notes
The output power is derated –5 W/°C above 45 °C.
The combined loading on +5 VDC and +3.3 VDC must not exceed 112 W.
For DC powered applications at 11 VDC input, the combined loading on +5 VDC,
+3.3 VDC, +12 VDC, and –12 VDC must not exceed 137 W. At 12.3 VDC or higher
input, the combined loading must not exceed 145.6 W.
For AC powered applications, the combined loading must not exceed 145.6 W.
Overcurrent protection............................All outputs protected from short
circuit and overload
Overvoltage protection ...........................All outputs protected from
overvoltage. Cycle the primary
power and front power switch to
restart.
Chassis Cooling
Per slot cooling capacity.........................25 W
Slot airflow direction ..............................P1 to P2, bottom of module
to top of module
Module cooling
System .............................................Forced air circulation (positive
pressurization) through a High
Flow fan with HIGH/AUTO
speed selector
Intake ...............................................Bottom of chassis
Exhaust ............................................Along rear, right side, and top of
chassis
Power supply cooling
System .............................................Forced air circulation through
integrated fan
Intake ...............................................Front side of chassis
Exhaust ............................................Rear side of chassis