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ADSL Microfilters
If this is the first time you have cabled a wireless router between a DSL phone line and your
computer or laptop, you might not be familiar with ADSL microfilters. If you are, you can skip
this section and proceed to
An ADSL microfilter is a small in-line device that filters DSL interference out of standard
phone equipment that shares the same line with your DSL service. Every telephone device
that connects to a telephone line that provides DSL service, needs an ADSL microfilter to
filter out the DSL interference. Example devices are telephones, fax machines, answering
machines, and caller ID displays. Note that not every phone line in your home necessarily
carries DSL service. That depends on the DSL service setup in your home.
Often the ADSL microfilter is included in the box with the wireless
Note:
modem router. If you purchased the wireless modem router in a
country where a microfilter is not included, you have to acquire the
ADSL microfilter separately.
One-Line ADSL Microfilter
Plug the ADSL microfilter into the wall outlet and plug your phone equipment into the jack
labeled Phone. The wireless modem router plugs directly into a separate DSL line. Plugging
the wireless modem router into the phone jack blocks the Internet connection. If you do not
have a separate DSL line for the router, the best thing to do is to use an ADSL microfilter with
a built-in splitter (see the next paragraph).
Figure 5. One-line ADSL microfilter
Second best when you do not have a separate DSL line for the router is to get a separate
splitter. To use a one-line filter with a separate splitter, insert the splitter into the phone outlet,
connect the one-line filter to the splitter, and connect the phone to the filter.
N150 Wireless ADSL2+ Modem Router DGN1000
Cable Your N150 Wireless Modem Router
Plugs into DSL line
Hardware Setup
13
on page 14.
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