What are these two other ports for?

[Be102]

I was just looking at my pump controller and realized I never really figured out what the two top little spots are for... I have two of the pumps and the bottom spot is used by floatswitches whilst the other seems to be difficult to figure out.


Any ideas?

 

[BigHildy53]

Here's what I found via Google:

The VarioS still only has six speeds of pump control, but this driver now also has a float switch port for automatically detecting when skimmate has reached a high level, either in the skimmer cup or in a remote waste collector. The Octo VarioS also includes ethernet input and output ports, presumably for third-party control the likes of Apex-Ready. An additional two serial buses on the side of the VarioS controller are there to integrate with a forthcoming full-fledged controller from Reef Octopus tentatively called the ‘Aqua Logic’.

 

[Awesome Dennis]

When I first got my RO regal skimmer and varios 8 I emailed the manufacturer about the ports and they said it was for factory programming.