National Instruments PC-DIO-24/PnP User Manual page 28

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Digital output specifications (referenced to GND):
Output logic high voltage
(I ol = –2.5 mA)
Output logic high voltage
(I oh = –4 mA)
Output logic low voltage
(I ol = 2.5 mA)
Output logic low voltage
(I ol = 4 mA)
Figure 3-2 depicts signal connections for three typical digital I/O
applications.
3.7 V min
2.7 V min
0 V min
0 V min
3-5
Chapter 3 Signal Connections
5.0 V max
5.0 V max
0.4 V
0.5 V
PC-DIO-24/PnP User Manual