I need more detailed wiring instructions

I have a 202u and need my hand held to figure out the abbreviations on the board. Please help.
the 3 pin blue isn’t clear. Is that for A/C in?
the 8pin green isn’t clear, is this all for dc?
What is "N/C?
What is Com?The last 2 pins of the green say 12-24v AC/ DC This is confusing!
Please help. A direct schematic would be deeply appreciated!

Please see below for door opener wiring instructions, thanks.

And please see below for NC NO COM meanings,

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