Appendix
A Specifications
VXI-1200 User Manual
A-4
© National Instruments Corporation
Characteristic
Description
VXI Supply Rear-Panel
DC Voltage Monitors
(J415 Connector)
Voltage Tolerance,
∆
V
+24 V +1.2 V, -720 mV
+12 V +600 mV, -360 mV
+5 V +250 mV, -125 mV
-2 V -100 mV, +100 mV
-5.2 V -260 mV, +156 mV
-12 V -600 mV, +360 mV
-24 V -1.2 V, +720 mV
Cooling
Characteristic
Description
Per Slot Cooling Capacity
Typically 80 W per slot @ 0.35 mm H
2
0.
Figure A-1 shows the worst-case slot-cooling curve of
the mainframe.
Cooling System
Forced air circulation (positive pressurization)
Slot Airflow Direction
P2 to P1, bottom of module to the top of module
Mainframe Intake, Bench-Top
Bottom rear of mainframe
Mainframe Exhaust, Bench-Top
Top of mainframe
Mainframe Intake, Rack-Mount
Rear of mainframe
Mainframe Exhaust, Rack-Mount
Side of mainframe
Filter Access (Power Supply and
Module Fans)
Filter accessible from rear of the mainframe