©
National Instruments Corporation
5
NI PXI-1042 Series Power Supply Shuttle User Guide
Efficiency ............................................... 70% typical
Power disconnect ................................... The AC power cable provides
main power disconnect. The
chassis front-panel power switch
causes the power supply to
provide DC power to
the CompactPCI/PXI backplane.
DC Output
DC current capacity (I
MP
)
Load regulation
Maximum ripple and noise (20 MHz bandwidth)
Voltage
NI PXI-1042
NI PXI-1042Q
0–50 °C
0–55 °C
0–40 °C
+3.3 V
20 A
18 A
20 A
+5 V
29 A
25 A
29 A
+12 V Peripheral slots
3.5 A
3.5 A
3.5 A
+12 V System slot
0.5 A
0.5 A
0.5 A
–12 V
2 A
2 A
2 A
Voltage
Load Regulation
+3.3 V
<5%
+12 V
<5%
+5 V
<5%
–12 V
<5%
Voltage
Maximum Ripple and Noise
+3.3 V
50 mV
pp
+12 V
120 mV
pp
+5 V
50 mV
pp
–12 V
120 mV
pp
