Appendix A Specifications
© National Instruments Corporation A-3 NI PXI-1056 User Manual
Over-current protection..........................All outputs protected from short
circuit and overload with
automatic recovery when the
short or overload is removed.
Over-voltage protection1
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
220cfm 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.