Pin diagram for Apex FMM

coastal_kid

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I'd like to use a 2 wire float switch with my Apex FMM.
Can anyone tell me what which pins are are for power and which are for open/closed switch?

4pin-num.png


(PS: Can I use a 3 pole jack?)

(PPS: From other posts I learned that it takes a thin jack to fit into the FMM module. Any advice there?)
 
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coastal_kid

coastal_kid

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TheHarold

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You could also just DIY a breakout box, just using a MiniDin8 cable. That gives you 6 inputs for open/closed switches such as float switches, magnetic reed switch, any DIY relay options, etc.
 

lakai

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This is the pinout for those cheap $1.50 optical sensors. The same cheap ones that neptune uses.

Ij8PDur.jpg
 

ellisz

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Did anything come from this? I picked up a FMM and now think a PM2 and a BoB would have been an easier solution.
 

Schme2

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Because I haven't found the answer to this question, on a 4 3.5mm plug, it's 1 & 2 or Tip & Ring 1. Because wire colors are different just ring the lines out to figure out which wires. Then in Apex, I set the Swx_# plug to be "water on floor." Then associate the outlet that the pump is in to the SWX_# other floatswitch.
 
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