interlock option for auxiliary channels

for my concept 200, i have 3 auxiliary channels.  the installer-programmable features chart shows that each of these channels can be programmed with interlock on or off.  what does this mean?

I haven't heard of that brand before, but most units don't allow those channels to work if you have the car running under your own control, with your own key. (They probably will work during remote start, though.) You'll have to experiment, but I'll bet that turning the interlock off will allow the channels to work even with the engine running.