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Thread: FMM Sensor Extension Cable

  1. #1
    Regular Vistor
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    FMM Sensor Extension Cable

    I know it's not recommended to extend the cable however i just need a couple more feet do to 2 aquariums w/ basement sumps.
    I would prefer to try this before buying another module. It looks like a standard 3 pole cable. Has anyone ever tried this and have there been any issues?
    Thanks
    Jason

  2. #2
    Master Control Freak RussM's Avatar
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    It's a 4-wire cable, not 3. The connector is called a TRRS (tip-ring-ring-sleeve), and you can find extension (male/female) cables. I have tested a 6' extension with all FMM sensor types, and all worked fine. Use as short an extension as you can.
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

  3. #3
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    Quote Originally Posted by RussM View Post
    It's a 4-wire cable, not 3. The connector is called a TRRS (tip-ring-ring-sleeve), and you can find extension (male/female) cables. I have tested a 6' extension with all FMM sensor types, and all worked fine. Use as short an extension as you can.
    Awesome, thanks Russ!
    Jason

  4. #4
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    Do you know where to buy these cables?

  5. #5
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    Amazon has them. Search on 3.5mm TRRS Extension Cable.

  6. #6
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    Just adding in another confirmation that a 3' IXCC branded TRRS cable from amazon worked for me.
    Thanks Russ for the recommendation and James for his.

  7. #7
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    Does the extension cable have any trouble fitting i to the FMM port hole? I tried to make my own extension cable and ran into the problem that they would t seat all the way. If the above cable works, that would solve my problem.

  8. #8
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    Quote Originally Posted by Scriptkitty View Post
    Does the extension cable have any trouble fitting i to the FMM port hole? I tried to make my own extension cable and ran into the problem that they would t seat all the way. If the above cable works, that would solve my problem.
    I had no issues with it.

  9. #9
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    What is the max length for a LD-2 extension cable?

  10. #10
    Frequent Contributor zombie's Avatar
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    Quote Originally Posted by jamesreich View Post
    What is the max length for a LD-2 extension cable?
    This data isn't published by Neptune and depends on the sensor. The LD-2 can likely handle a fairly large extension at the expense of some sensitivity to leaks. However, these are already a little overly sensitive, so short extensions are actually a benefit.

    Sent from my SM-G965U using Tapatalk

  11. #11
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    I wonder if anyone has used extension cables with the LLS.

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