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  1. #1
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    Jandy Serial interfaces

    Do they really need to suck so bad?

    My 2nd one just died at my house. This will be the 3rd in 3 years.

    F U Jandy

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    Re: Jandy Serial interfaces

    Lightning strikes could be the reason. You may be lucky, and it is sacrificing itself instead of a processor.
    OTOH, maybe Snookie is having a party in the pool when you're not home, and the guidos are screwing with you!
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    Re: Jandy Serial interfaces

    They are not great but they also contain IC with tiny wires that are susceptible to small surges. How are you protecting the unit from surges? Both RS-485 and RS-232 should be surge protected to ensure the life of the interface but also the equipment connected to it. Even then, they'll fail. Outdoor wiring will cause all manor of havoc with a low voltage device.

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    Has God on its side.

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    Re: Jandy Serial interfaces

    As luck would have it, I need to order one of these this week.
    Any idea where to pick it up at a decent price?

    Our local Jandy folks are dumb as a post, even with the part number they are having a hard time finding it in the price book.

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    Re: Jandy Serial interfaces

    Quote Originally Posted by OEX View Post
    Do they really need to suck so bad?

    My 2nd one just died at my house. This will be the 3rd in 3 years.

    F U Jandy
    I've seen them last a long ass time in many houses. You need to make sure you have an opto-isolator between the pool side of things and the RS-232 device. If you don't, then any lightning hit near your property can easily cook it and anything connected to it. It isn't that the device sucks...it's more that you have an electronic device that is pretty much out in the open for electrical storms to destroy.
    ---Steve---

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    Re: Jandy Serial interfaces

    I have surge protection on the hi volt at the jandy

    i have surge protection at both ends of the low voltage cable

    They just suck

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    Quote Originally Posted by OEX View Post
    I have surge protection on the hi volt at the jandy

    i have surge protection at both ends of the low voltage cable

    They just suck
    There's a difference between surge protection and lightning protection. A standard RS-232/485 "surge protector" won't do squat for protecting that interface during a nearby strike. You need an optical isolator for protection on the interface box and lightning protection at the pool end.
    ---Steve---

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    Re: Jandy Serial interfaces

    Quote Originally Posted by jberger View Post
    As luck would have it, I need to order one of these this week.
    Any idea where to pick it up at a decent price?

    Our local Jandy folks are dumb as a post, even with the part number they are having a hard time finding it in the price book.
    Worthington Distribution has them I believe.. a decent price is subjective though..
    There is no theory of evolution, just a list of creatures Chuck Norris allows to live.

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  9. #9
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    Re: Jandy Serial interfaces

    Surge is definitely needed on these, I use optical isolators when I have any say in the matter..
    There is no theory of evolution, just a list of creatures Chuck Norris allows to live.

    "Kalashnikov: The most successful point and click interface in the world." Brian in MN

    Chad Alberts, Owner, Residential Controls Services LLC
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    Re: Jandy Serial interfaces

    The part that comes with the Jandy marked isolator is just three wires connecting one side to the other, I use the 9SP0P2 from here. My rule has always been to optically isolate if it leaves the rack.
    Clatto Verata Necktie


 

 
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