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© National Instruments Corp.
13
NI 9476 Operating Instructions and Specifications
Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted. All voltages are relative to COM unless 
otherwise noted.
Output Characteristics
Number of channels.......................... 32 digital output channels
Output type ....................................... Sourcing
Output voltage (V
0
........................... V
sup
 – (I
0
R
0
)
Power-on output state ....................... Channels off
External power supply 
voltage range (V
sup
)........................... 6–36 VDC
Continuous output current (I
0
) per channel
With 6–30 VDC 
supply voltage............................. 250 mA max
With 30–36 VDC 
supply voltage............................. 200 mA max
Output impedance (R
0
) ..................... 0.3 
Ω max