Also, I would download the product manual and go through it https://mthtrains.com/sites/de...ction/30as10319i.pdf
The Remote and Remote Lock-On replace the control
box found with M.T.H.’s Z-500 ™ and Z-750® transformers, and are designed
for use with moderately powered transformers such as these. In order to
operate the system, you need a Remote handheld (batteries not included), a
Remote Lock-On for each loop of track you wish to control, and a section of
M.T.H. RealTrax® .
Note- the longest tip[ connection is intended to go to center rail and the shorter one goes to the outside rail since you are using Tubular track and connecting using alligator clip leads.