© National Instruments Corporation 45 NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT
24 V Digital Input (NI sbRIO-964x/9642XT Only)
Number of channels ............................... 32 digital input channels
Input type ............................................... Sinking
Digital logic levels
OFF state
Input voltage ............................ ≤ 5V
Input current ............................ ≤ 150 μA
ON state
Input voltage ............................ ≥10 V
Input current ............................ ≥330 μA
Hysteresis
Input voltage ............................ 2 V min
Input current ............................ 60 μA min
Input impedance..................................... 30 kΩ ±5%
Input protection
8 channels ....................................... 60 VDC max
32 channels ..................................... 30 VDC max
Setup time
1
............................................. 1 μs max
Transfer time
2
......................................... 7 μs max
24 V Digital Output (NI sbRIO-964x/9642XT Only)
Number of channels ............................... 32 digital output channels
Output type............................................. Sourcing
Output voltage (V
0
) ................................ V
sup
– (I
0
R
0
)
Input voltage from
external power supply ............................ 6–35 VDC
Continuous output current (I
0
) on each channel
No heat sinks................................... 250 mA max
With external heat sinks added
3
...... 1.5 A max
1
Setup time is the amount of time input signals must be stable before you can read from the module.
2
Transfer time is the maximum time FPGA Device I/O functions take to read data from the module.
3
Refer to the Increasing Current Drive section for information about installing heat sinks.
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