Terminal Blocks
The drops from the switches and the straight pieces of track are labeled on this diagram. There are a series of terminal blocks under the layout labeled A+,A- … B+,B- … C+,C- … and D+,D-. Then the drops are labeled 1+,1- through 11+,11-. Sooo .. the idea is to connect the drops with a + to one of the terminal blocks with a + .. and the same with the negative sides.
.. and here we go. This is my paired ‘A’ terminal blocks. On the left the A+ .. on the right the A-.