National Instruments NI 6238 - Manual (Page 112)

Chapter 8 PFI
© National Instruments Corporation 8-7 NI 6238/6239 User Manual
Figure 8-5. NI 6238 Digital I/O Connections (DO Source)
P1.<0..3>
P1.VCC
P1.0
P1.1
P1.GND
P0.0
P0.GND
P1.GND
P0.GND
Digital
Isolators