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The back of my Boss OL4 garage door opener has a square port with two pins labeled 'wall box' - see top of page 11 in the manual here.

Thing is there are also separate terminals for a push button to open/close, which I already use - so I don't understand what the wall box is for and how it's different.

Confusingly the manual doesn't actually mention what it does, and I'm unwilling to do too much probing in case I damage something.

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    I would guess that it might be for the "code pad" type of thing mounted outside the garage where you have to put in the right number/code to open it, but I don't know that. – Ecnerwal Feb 27 '20 at 2:01
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    See picture oin eBay:ebay.ca/itm/… – DrMoishe Pippik Feb 27 '20 at 2:22
  • Or one of those "doorbell-looking" push buttons.... – Greg Nickoloff Feb 27 '20 at 2:31
  • Well. Since they already have 4 standard screw terminals there, they could've easily just had six. They did not, and swerved out of their way to have a weird custom socket that you can't use. Which means, the company's intent is that you not use that socket except for company supplied equipment which uses it. – Harper - Reinstate Monica Feb 27 '20 at 2:48
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    I would agree with ecnerwal, if the instructions don’t tell you it may be an option so why not contact the company and ask those that made it. – Ed Beal Feb 27 '20 at 6:59

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