We??™ll add to
your basic service in subsequent projects.
Step 1: Adjust Your Phone Connections
Your new DSL Internet connection requires some minor recabling of your existing
phone connections. This doesn??™t mean you need to install new wires all over your
house or apartment??”you just have to add a DSL filter (see Figure 1-1) at each phone
connection. When you subscribe to DSL service, the digital signal of DSL is mixed in
with your normal voice service somewhere down the lines a few blocks away. This
signal produces a rushing sound??”like a fast-moving waterfall??”if you listen to your
phone without the DSL filters. Adding a DSL filter to each phone connection ensures
that the annoying rushing sound is blocked from your voice phones, fax machine, and
dial-up modems.
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4 Project 1
Your DSL modem must ???hear??? the rushing sound, but it is not disturbed by your
voice, fax, and modem. You must connect the DSL modem directly to the phone line
without filters. This is often accomplished with a DSL filter and phone splitter, shown
in Figure 1-2, which provides one connection for your phone and another specifically
for your DSL modem.
To start things off, go to each of your voice phones and install a DSL filter at each
connection. Most DSL modem packages provide two filters, though you may need more
of them??”they are readily available at electronics and even home improvement stores.
Step 2: Connect Your DSL Modem
When you get to the location where you plan to connect your DSL modem, install
the DSL splitter between the phone jack and DSL modem, using the DSL jack on the
splitter.
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