Appendix A Specifications
© National Instruments Corporation
A-3
VXI-1500 User Manual
Table A-2.
DC Output Specifications (Continued)
Characteristic
Description
Power Supply Unit MTTR
Replacement in under 5 minutes
Cooling
Table A-3.
Cooling Specifications
Characteristic
Description
Per Slot Cooling Capacity
85 W
Figures A-1 and A-2 show the
worst-case slot-cooling curves of the
mainframe.
Module Cooling System
Forced air circulation (positive
pressurization) via three 140 cfm fans
with HI/LO speed selector
Slot Airflow Direction
P2 to P1, 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
Right side of mainframe (viewed from
front)
Power Supply Cooling
Exhaust
Left side of mainframe (viewed from
front)
Module Cooling Fan
MTBF
30,000+ hours
Module Cooling Fan
MTTR
Replacement of fan unit in under
5 minutes