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Axpert inverter RS232/Serial logic levels


Gnome
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Hi all

I was hoping I don't need to crack out the old OScope to figure this out, hopefully somewhere on here already has this on hand:

What are voltage levels of the RS232/Serial port on the Axpert?

Edited by Gnome
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Thanks guys.  I was hoping to connect to the Raspberry Pi without needing a MAX3232 but seems that is unavoidable.

At times you can get away with just resistors but the differential is too large and negative voltages is obviously a problem.

Edited by Gnome
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