Chassis cooling – National Instruments NI PXI-1056 User Manual
Page 39
Appendix A
Specifications
© National Instruments Corporation
A-3
Over-current protection.......................... All outputs protected from short
circuit and overload with
automatic recovery when the
short or overload is removed.
Over-voltage protection
1
3.3 V, 5 V, +12 V, –12 V................ 130% above nominal output
voltage
Power-supply shuttle MTTR.................. Replacement in under 5 minutes
Chassis Cooling
Per slot cooling capacity ........................ Slot cooling capacity is 25 W
with fan speed set to HIGH
Slot airflow direction ............................. P1 to P2, bottom of module
to top of module
Module cooling
System............................................. Forced air circulation (positive
pressurization) through one
220 cfm fan with HIGH/AUTO
speed selector
Intake .............................................. Right rear of chassis
Exhaust............................................ Along left side of chassis
Power supply cooling
System............................................. Forced air circulation through
integrated fan
Intake .............................................. Right rear of chassis
Exhaust............................................ Along left side of chassis
1
To reset over-voltage protection, remove the mains for 30 seconds and then power back up.