JLCooper eBOX - Manual (Page 46)

Using with eBOX I/O
The eBOX GPI inputs and outputs are CMOS compatible circuits.
The CMOS GPI inputs require that the input signals be 0 to 5 volts
and referenced to ground. The CMOS GPI outputs can deliver 0
5 volts at up to +/- 6mA and referenced to ground.
to
y
y
In many cases, this will be compatible with your equipment.
However, in some cases, there will be the end user equipment ma
not be compatible with 0 to 5 volt requirements of the eBOX GPI
inputs and outputs. In this case, the eBOX I/O must be used. Each
eBOX I/O buffers 8 inputs and 8 outputs. The inputs are buffered
with an optoisolators while the outputs are buffered with a dr
relay contact. Up to three eBOX I/Os can be used with a single
eBOX.
3 1 2 4
3 1 2 4
46
3 1 2 4
eBOX I/O #1
GPI 1-8
eBOX I/O #2
GPI 9-16
eBOX I/O #3
GPI 17-24