Understanding Adsl Microfilters; Adsl Microfilter; Adsl Microfilter With Built-In Splitter - NETGEAR DGN2000 - Wireless Router Setup Manual

Understanding ADSL Microfilters

ADSL technology uses the same wires as your telephone service. However, ADSL adds signals to
the telephone lines which create noise in the telephone service. You must use ADSL microfilters to
filter out these signals before they reach your telephone.
If you purchased the wireless-N modem router in a country where a microfilter is not
included, you must acquire one.

ADSL Microfilter

Figure 5
Each device such as a telephone, fax machine, answering machine, or caller ID display will require
an ADSL microfilter.
Do not connect the wireless-N modem router to the ADSL line through a
microfilter unless the microfilter is a combination microfilter/splitter specifically
designed for this purpose. Doing so will prevent block your connection to the
Internet. If you have any doubts about this, connect the wireless-N modem router
directly to the ADSL line.

ADSL Microfilter with Built-In Splitter

Use an ADSL microfilter with built-in splitter when there is a single wall outlet which must
provide connectivity for both the wireless-N modem router and telephone equipment.
Figure 6
12 Installing Your Router Manually (Advanced, Mac, and Linux Users)