Appendix A
Specifications
©
National Instruments Corporation
A-3
PXI-1000 User Manual
Cooling
Safety
Table A-3.
Cooling Specifications
Characteristic
Description
Per Slot Cooling Capacity
Slot cooling capacity in worst-case slot
is 20 W with fan speed set to HI
Module Cooling System
Forced air circulation (positive
pressurization) via two 60 cfm fans with
HI/LO speed selector
Slot Airflow Direction
P1 to P2, bottom of module to top of
module
Module Cooling Intake
Bottom rear of mainframe
Module Cooling Exhaust
Along both sides of mainframe
Power Supply Cooling
System
Forced air circulation via integrated fan
Power Supply Cooling
Intake
Rear of mainframe
Power Supply Cooling
Exhaust
Along both sides of mainframe rear and
upper rear panel
Module Cooling Fan
MTBF
40,000+ hr
Power Supply/Fan Unit
Replacement in under 5 minutes
Table A-4.
Safety Specifications
Characteristic
Description
Safety Characteristics
UL 3111-1, IEC 1010-1, CSA 22.2
No. 1010.1
Installation Category II
Pollution Degree 2
Safety Class 1
