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  2. DSL filter - Wikipedia

    en.wikipedia.org/wiki/DSL_filter

    At the wall jack where the DSL modem is installed, a commercial 2-line splitter adapter is used that puts each line of the cable on its own jack port, connected as Line 1. The telephone, if any, is plugged into the Line 1 jack and the DSL modem is plugged into the Line 2 jack of the adapter, but is fed through the Line 1 contacts in that jack ...

  3. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    telephone line to phone cord: The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the telephone network. In many residences, though, the boundary between utility-owned and household-owned cabling is a network interface on an outside wall known as the demarcation ...

  4. Demarcation point - Wikipedia

    en.wikipedia.org/wiki/Demarcation_point

    Prior to Federal Communications Commission (FCC) regulations separating the ownership of customer premises telecommunication equipment from the telephone network, there was no need for a public standard governing the interconnection of customer premises equipment (CPE) to the United States' telephone network, since both the devices and the “local loop” wiring to the central office were ...

  5. Swedish telephone plugs & sockets - Wikipedia

    en.wikipedia.org/wiki/Swedish_telephone_plugs...

    The plastic pin adds a presence function. When not inserted into a jack, the jack itself (mechanically) connects the incoming line to the next socket. The cascade topology makes installing a DSL splitter a matter of plugging it in the first socket since this socket provides both direct access to the PSTN and connections to the remaining sockets.

  6. Naked DSL - Wikipedia

    en.wikipedia.org/wiki/Naked_DSL

    This splitter separates the DSL and voice bands. Thus the customer will have a dial tone, which allows them to use the telephone line as a regular land line while they are using it to access the Internet on their computer. A cable carrying both services runs from the splitter to the cable head, where it continues on to the customer on outside ...

  7. Network interface device - Wikipedia

    en.wikipedia.org/wiki/Network_interface_device

    Accessing the test jack disconnects the customer premises wiring from the public switched telephone network and allows the customer to plug a "known good" telephone into the jack to isolate trouble. If the telephone works at the test jack, the problem is the customer's wiring, and the customer is responsible for repair. If the telephone does ...