Each output of the intellijel Quad Inverter is a buffered negative version of the input. e.g. if an input is fed a 2v cv signal, the output will be a -2v signal.
All outputs are normalled to the inverter input below it. inverts audio inputs and shifts their phase by 180 degrees.
This is not used for inverting gates. For this you need a logic inverter as found on the Plog module.