JLCooper gBOX - Manual (Page 18)

18
The outputs of the gBOX GPI ports are also CMOS. The output
signal is referenced to pin 1 of the GPI Output Port. The GPI
Outputs are rated to +/- 6mA. If this is not sufficient for your
application, consider using the eBOX I/O.
Note: Because the inputs are CMOS, the output voltage MUST be
limited to voltage levels between 0 and 5 volts. This can occur if
driving a circuit that is powered by a voltage higher than 5 volts. If
this is not possible, consider using the gBOX I/O.
The example circuits below shows a GPI Output driving an LED.
74HC374
Detail of GPI Output
1
74HC374
GPI Output Example #1 with LED
2
5 Volts
1
74HC374
GPI Output Example #2 with LED
2