The AR1 is usually located close to the point where the gaps are cut for the reversing loop. The length of the reversing loop is determined by the maximum length of the train that will use the loop.
1. Turn off track power. (Note: Failure to turn off power before connecting your AR1 may damage your AR1.)
2. Connect Track Power from Rail A and Rail B mainline to the AR1. Rail A connects to terminal 5 and Rail B connects to terminal 4.
3. Connect the wires from the reversing section to terminals 1 & 2 on the AR1. (Note: terminal 3 is not used.)
Looking at the AR1 with the Terminal strip oriented at the bottom. The pin numbering is 1,2,3,4,5.