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Harrisburg Pennsylvania

October, 25th

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Video Results for "swimming pool contractors"

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Harrisburg, PA - "swimming pool contractors" search results

  • Wickard Bros Siding Contractors

    684 Lynes Rd, Dillsburg, PA 17019

    (717) 432-3365

    Write a review
  • Mione Thompson Contractors

    61 Hillymede Dr, Hummelstown, PA 17036

    (717) 566-2551

    Write a review
  • Middletown Municipal Pool

    S Union St, Middletown, PA 17057

    (717) 944-4144

    Write a review
  • Goodall Pools Inc

    S Union St, Middletown, PA 17057

    (717) 774-3744

    Write a review
  • Leslie's Swimming Pool Supplies

    3864 Union Deposit Rd, Harrisburg, PA 17109

    (717) 540-8580

    Write a review
  • Integrated Contractors LLC

    1900 North St, Harrisburg, PA 17103

    (717) 234-0751

    Write a review
  • D & S Contractors Inc

    5700 Blue Mountain Trl, Enola, PA 17025

    (717) 732-8560

    Write a review
  • PA Council of Gen Contractors

    800 N 3rd St, Harrisburg, PA 17102

    (717) 920-0180

    Write a review
  • Lombardo & Lipe Electrical Contractors N

    7 St , Harrisburg, PA 17101

    (717) 232-5200

    Write a review
  • American Subcontractors Association of Central Pennsylvania

    1500 Paxton St, Harrisburg, PA 17104

    (717) 232-2222

    Write a review
  • R & S Construction Group

    75 Spring Lane Rd, Dillsburg, PA 17019

    (717) 432-8105

    Write a review
  • Crone's Computer Services

    Sarah Ct, Lewisberry, PA 17339

    (717) 482-2046

    Write a review
  • Madelyn Touchet Total Home Organizing Consultant

    , Lewisberry, PA 17339

    (717) 938-3854

    Write a review
  • Dana Yohn Concrete Construction Inc

    , Lewisberry, PA 17339

    (717) 766-1137

    Write a review
  • Stanley's Town & Country Paving

    803 Siddonsburg Rd, Lewisberry, PA 17339

    (717) 938-5704

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More on Telecommunications Wiring - Cabling

Most every home has local telecommunications wiring. It generally consists of one or two pairs of coated copper wire. One wire is called the tip, and carries no voltage. The other wire is called the ring, and carries -48 to -52 volts. These wires can be spliced together to provide multiple telephone jacks in any location for any given phone number. The telephone jack in your house is wired to the network interface box on the outside of the building. In some buildings, the network interface is located in the basement. It is where the local phone companys responsibility ends and the consumers begins, unless they have bought a service contract that includes inside wiring. This is the location that either the consumer or the telephone company uses to test the line. The network interface is connected to the pole via a drop line, where it joins hundreds, sometimes thousands, of other cable pairs. This cable leads to the telephone companys central office, where all local telecommunications wiring is terminated. Even if the call is destined to go across the street, it must first go through the central office. Cell phone towers are cabled to the central office. The cables leading to the central office may be underground or on poles. The central office contains computerized switching equipment that records billing information, then routes the call to the appropriate cable to achieve its final destination. The central offices are redundantly networked, meaning that each one is cabled to at least two others. They are also where cell phones, fiber, and DSL connect to fiber optic cables that go to the internet hub, allowing the consumer online access. Communication using a land line, cellular telephone, or internet is an important part of society today, and is all possible due to local telecommunications wiring.

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