Normal and Bump nodals

I have been trying to set up surfaces for Daz objects so all I have to do is load in an Object and load in each surface then change out the color image to the one they used in the original object. When I've tried to set it up like this I have trouble connecting the Normal or Bump nodal into the surfaces. I tried to see if I could find an answer to this but I couldn't find anything. So can someone help me?
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