© National Instruments
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A-3
Over-current protection .................................... All outputs protected from short circuit and
overload with automatic recovery
Over-voltage protection
3.3 V and 5 V............................................ Clamped at 25 to 40% above nominal output
voltage
Power supply MTTR ........................................ Replacement in under 1 minute
Chassis Cooling
Module cooling system
PXIe-1066DC ........................................... Force air circulation (positive pressurization)
through six 150 cfm fans (three sets of dual
stacked fans) with High/Auto speed selector.
Slot airflow direction ........................................ Bottom of module to top of module
Module cooling intake ...................................... Bottom of chassis
Module cooling exhaust.................................... Along top of chassis
Power supply cooling system ........................... Forced air circulation through integrated fan
Power supply cooling intake............................. Rear of chassis
Power supply cooling exhaust .......................... Top of chassis
Environmental
Maximum altitude............................................. 4600 m (570 mbar) (at 25 °C ambient)
Note
Fan speed selector must be set to High to meet the maximum altitude
specification.
Pollution Degree ............................................... 2
For indoor use only.
Operating Environment
Ambient temperature range .............................. 0 to 50 °C
(Tested in accordance with IEC 60068-2-1 and
IEC 60068-2-2. Meets MIL-PRF-28800F
Class 3 temperature limits.)
Relative humidity range.................................... 10 to 90%, noncondensing
(Tested in accordance with IEC 60068-2-56.)
Storage Environment
Ambient temperature range .............................. -40 to 71 °C
(Tested in accordance with IEC 60068-2-1 and
IEC 60068-2-2. Meets MIL-PRF-28800F
Class 3 temperature limits.)
