Found Dan-Nicke's post and it is pretty clear. Your breaker that reads "converter" or "inverter" is actually the AC power feed to your combination inverter/charger. When in charge mode it takes this power and makes DC to charge your batteries AND passes this ac through to the circuits connected to the inverter. This is called..."pass through" and is in fact an internal transfer switch in the inverter itself. This cable comes out of the inverter and goes to the power panel that has the inverter powered circuits. As Dan shows, it may be confusing since the "sub panel" in his rig is a the right section of his main panel and may not at first be obvious.
This output line will contain AC from shore power or generator when present, or AC generated by the inverter when running off DC.
You can see Dan's picture and explanation at Rewiring for more inverter powered outlets