Apex Control cable for VarioS DC pumps

May 18, 2016
Axel Burboeck wrote
Is there a cable available, and/or how should it be wired for DIY?

The specs indicate a 3.5mm jack, but which terminals connect to GND and 0-10V on the RJ45?

Is it the same as the Kessil control wire? I assume it's different from the Gyre, which indicates a 2.5mm jack.
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5 Answers
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May 18, 2016
Carlos agent wrote
The gyre uses a 3.5mm jack.

http://www.coralvue.com/y-cable-for-icecap-gyre-interface-module

The same cable will work for the VarioS pumps.

If you want to create your own cable, I would recommend heading over to Neptune's Forum and asking them for a wiring diagram that will work with their controller.

May 18, 2016
Axel Burboeck wrote
OK. I've seen that cable listed on many sites indicating that it uses the smaller 2.5mm jack. Thanks for clarifying.
Oct 19, 2016
Lisa wrote
Is the Kessil cable any different? Bulkreefsupply told me to use that with my VarioS-6 cir pump,so I bought it. Then I read on the Neptune forums to use the Y cable (Gyre?). I haven't hooked it up yet because I am trying to figure out if the Kessil I have will work or did I get wrong info from BRS and need to return for the Gyre Y cable?
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Oct 20, 2016
Carlos agent wrote
We are not sure how the Kessil cable is made so I cannot really answer that question.
Oct 20, 2016
Lisa wrote
Ok, I'll order the other then. Thank you.