On 27 January 2012 08:10, Viesturs Lācis <viesturs.la...@gmail.com> wrote:

> When output is "false":
> There are 3,46V between 5i23 pin and GND.
> There are 1,68V between 5i23 pin and +5V.
>
> When output is "true":
> There are 0.6V between 5i23 pin and GND.
> There are 4.65V between 5i23 pin and +5V.

I think that should be OK. What the setting you have made does is make
the outputs 5V-safe, rather than into 5V outputs.
The trick is to use them as sinking outputs. You connect the opto +5V
to the +5V rail, and the opto 0V pin to the 5i23.
When the pin is high, no current flows. When the pin is low, current flows.

-- 
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.

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