N scale Model 6600 transformer help

[KGtrain]

I pulled out my childhood N scale that has no instructions.

The #6600 transformer has 4 connection points for the blue and red track wires -
AC, Access, DC, Loco.

Which connect to which track wire? Anyone know?

Thanks.

[brokemoto]

Connect the two DC terminals to the track.  DONOT connect the AC to the track.