Here's my best guess at a guided tour of the front panel of this basic converter:
Push/pull switch on left
If the green band is showing the switch is pulled out, and is thus off (green=safe?)
right side label
The three things that are turned on and off by this switch:
- the AC-to-DC converter (and thus the DC power)
- the outlet in this panel (immediately below the switch)
- some extension outlet located elsewhere in the trailer
The switch is pushed in to turn it on; it is switching the 120 VAC power only.
Rocker switch on right
BATT OFF CONV
BATT = DC power comes from the battery
OFF = DC power circuit is off (no power)
CONV = DC power comes from the converter (battery probably disconnected from DC power circuit)
Fuse above rocker switch
10 A TYPE
12.5 VDC = output of the converter through this fuse
MAX FUSE 10 A = don't use a fuse larger than 10 A, since that's what the converter can handle
AGC 10 = common style glass fuse in 10 amp rating
I agree that the outlet is just a convenient place to plug in, with power from the "shore power" cable - the converter doesn't do anything with this power, and if you want AC power where there is no shore power you need to use an inverter. You can just use a portable unit like Gina, but you need wiring to the battery (not to the converter) to supply it.
The photo helps a lot - thanks, Rick, for posting it.
(On edit, just fixed a missing decimal point)