How to Power Apple Cinema Display 20" A1081 EMC2010  to G5 Dual

I just purchased a used Apple Cinema Display 20" A1081 EMC2010.

It did not come with power gear.

I purchased an Apple 65w power adapter with a power cord which I have yet to receive.

Looking at the back of the monitor there is a small port under where the AVI cable comes out. Is this port a power inlet into which a power input goes into.

If so, is the cord a part of the adapter or is it something that comes separate?

On the AVI cable there are three male plugs (USB& Firewall). Will these plugs, inserted into the appropriate slots in the back of my dual G5, provide the power for the monitor?

Sorry for being such a dunce.