Using an Altronix RB1224 Relay module as an electronic DPDT switch on a reverse loop

Model Railroader Electronics and DCC
1

I purchased an Altronix RB1224 for my n gauge and cannot get it to work

2

can you describe how you are using it? (e.g. schematic)

RB1224.pdf

3

Is this DC or DCC? This not an auto-reverser in the DCC sense.

4

Switched to aDigitrex AR1