Reef Octopus RO-DC-3500 extra controller ports?

[TCoach]

Does anyone know what the 2 extra ports are on the Reef Octopus 3509 pump (to-dc-3500) controller? I’ve tried to find the manual and no luck so far.

Hoping it is something I can use to allow my GHL Profilux 4 to use for control.

 

[blaxsun]

Sorry, I tried finding a PDF manual but Reef Octopus’s website is an unmitigated disaster.