Adsl Microfilters; One-Line Adsl Microfilter (Not Included); Two-Line Adsl Microfilter (Included) - NETGEAR N600 DGND3800B User Manual

N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B

ADSL Microfilters

If this is the first time you have cabled a modem 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 inline 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. Examples of devices are telephones, fax machines, answering
machines, and caller ID displays. Not every phone line in your home necessarily carries DSL
service. That depends on the DSL service setup in your home.
Note: Often the ADSL microfilter is in the box with the modem router. If you
purchased the modem router in a country where a microfilter is not
included, you have to acquire the ADSL microfilter separately.

One-Line ADSL Microfilter (Not Included)

Plug the ADSL microfilter into the wall outlet and plug your phone equipment into the jack
labeled Phone. The modem router plugs directly into a separate DSL line. Plugging the
modem router into the phone jack blocks the Internet connection. If you do not have a
separate DSL line for the modem router, the best thing to do is to use an ADSL microfilter
with a built-in splitter (see
Figure 5. One-line ADSL microfilter
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.

Two-Line ADSL Microfilter (Included)

Use an ADSL microfilter with a built-in splitter if you have a single wall outlet that provides
connectivity for both the modem router and your telephone equipment. Plug the ADSL
Cable Your Modem Router
Two-Line ADSL Microfilter (Included)
Plugs into the ADSL line
Hardware Setup
14
on page 15.
on page 14).