Azatrax has reverse loop controllers for both DCC and
Here is what you need to do if you continue to use
your reverse loop:
1. Place insulated joiners between the turnout and the
track that is the inner loop. You also must
have insulated joiners at the other end of the loop
where it joins the turnout. This creates an 'isolated
section of track.
2. The 'isolated section' will be powered by the Azatrax.
The input of the Azatrax receives power from your
Power pack track terminals if DC. If DCC, it is powered
by your track power.
When you do as above, the 'short' you get at the upper left
turnout will go away. The above solves the 'short' at the
Here is how a 'reverse loop' controller works. When the
loco front wheels span the insulated joiners there is a
short. The Azatrax instantly reverses the polarity of
the isolated section and the train continues without
pause. When it reaches the exit end of the section,
the wheels again short and again the Azatrax reverses the
isolated section power and the train continues on. It's
While Azatrax makes controllers for either DC or DCC,
there are several other makes of controller for DCC
layouts that may be of less cost.
Any time your layout can have a train turn around and
go the opposite direction on the same track, as is your
situation with the inner loop, you have a 'reverse loop'