Appendix A
Specifications
©
National Instruments Corporation
A-3
NI PXI-1010 Chassis User Manual
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 20 to 30% above
nominal output voltage
+12 V and –12 V............................. Clamped at 26 to 29 V difference
b12 and –12 V outputs
SCXI Subsystem Electrical Characteristics
DC Output
V+ output
Tolerance limits include peaks ....... +18.5 to +25 V
Ripple (peak-to-peak) ..................... 1.5 V
Max load ......................................... 680 mA
V– output
Tolerance limits include peaks ....... –18.5 to –25 V
Ripple (peak-to-peak) ..................... 1.5 V
Max load ......................................... 680 mA
+5 V output
Tolerance limits include peaks ....... +4.75 to +5.25 V
Ripple (peak-to-peak) ..................... 50 mV
Max load ......................................... 200 mA
Maximum loads are the supply current for the entire chassis. Scaling the
maximum power gives the allotted current per slot, as follows:
V+ output ............................................... 170 mA
V– output................................................ 170 mA
+5 V output ............................................ 50 mA
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