Isolated Digital Output; Isolated Digital Input - NuDAQ PCI-6308 Series User Manual

4.4 Isolated Digital Output

The isolated digital output circuits are as following. The output is open
collector type. The isolation voltage between the isolated output and
the host power signals is 5000 Vrms.
Photo
Coupler

4.5 Isolated Digital Input

The isolated digital input circuits are as following.
equipped with current-limit resistor. The input voltage could up to 34V.
The isolation voltage between the isolated input and the host power
signals is 5000 Vrms.
20 Operation Theorem
DOn ( n=1~4)
GND
2.4K
1/2W
Din (n=1~4)
GND
The input is