Uh, which model chartplotter? And where did you read it doesn't trigger on
the anchor alarm?

Does anyone have a commercial solution for getting an alram out of the
raymaine chartplotters that can actually be heard. I know they sell
the seatlk to nema converter for this purpose, but I am told this will
not sound an alrm for anchor dragging. I bought the shipmodul
multiplxer but unfortunately this does not have switched outputs. Is
there a nema alarm sentence from the raymarine char plotter?