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  1. #1
    S. Centel's Avatar
    S. Centel Guest

    Default telephone outlet transformer

    Is it common to have a pigtail plug-in (outlet) transformer connected to the telephone wires? I have a PCI Transformer Model 0501 0569. On the inside it reads LINE 685-9646 LOAD. I unplugged it and nothing happened. The phone and all electrical still works. Is it necessary?

    Thank you,
    S. Centel

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  2. #2
    Join Date
    Aug 2008
    Location
    Maryland
    Posts
    1,898

    Default Re: telephone outlet transformer

    It might be from when phones had lighted keypads. Is it connected to the yellow and black phone line?

    All answers based on unamended National Electrical codes.

  3. #3
    Join Date
    Mar 2007
    Location
    Ridgewood, NJ
    Posts
    237

    Default Re: telephone outlet transformer

    The transformer was required for the lighted dial Trimline phone introduced in the 60's.


  4. #4
    S. Centel's Avatar
    S. Centel Guest

    Default Re: telephone outlet transformer

    We built the house in 1991...I will try to take a picture in the near future to show the connection. Thanks for your response.


  5. #5
    Join Date
    Aug 2007
    Location
    Memphis TN.
    Posts
    4,311

    Default Re: telephone outlet transformer

    Quote Originally Posted by S. Centel View Post
    We built the house in 1991...I will try to take a picture in the near future to show the connection. Thanks for your response.
    Sounds like a power line transceiver.
    phone line capable alarm,
    ( early but possible more prevalent mid 90s.) ethenet power

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
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