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12

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.

ADSL Microfilter

Each device such as a telephone, fax machine, answering machine, or caller ID display will require

an ADSL microfilter.

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 modem router and telephone equipment.

If you purchased the wireless modem router in a country where a microfilter is not

included, you must acquire one.

Figure 4

Do not connect the wireless 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 modem router directly to the

ADSL line.

Figure 5

Installing Your Router Manually (Advanced, Mac, and Linux Users)

13

Connecting Your Wireless Modem Router

Before you install your wireless modem router, make sure that the Internet Protocol (TCP/IP)

Property settings on your computer are set to “automatically obtain an IP address” using DHCP

and “Obtain DNS server address automatically.” You can check these settings by looking at the

TCP/IP Properties of your Internal Network Connections, which are accessible through the

Control Panel of your computer. If you are unsure about this, refer to the documentation for your

computer or see the link to TCP/IP Addressing in

“Related Documents” on page 34

.

To connect the wireless modem router, the ADSL filter and the computer:

1.

Connect an ADSL filter as shown below.

•

Install an ADSL filter for every telephone that uses the same phone line as your wireless

modem router. Select the appropriate filter(s) for your wireless setup.

If you are replacing an existing router, disconnect it completely from your network

and set it aside before starting to install your new router.

If you purchased the DGN1000 in a country where an ADSL filter is not

included, you must acquire one.

1.

One-Line Filter: Use with a phone or fax machine.

2.

Splitter: Use with a one-line filter to share an outlet with a phone and the wireless

modem router.

3.

Two-Line Filter with Splitter: Use to share an outlet with a phone and the wireless

modem router.

Figure 6

1

2

3

Installing Your Router Manually (Advanced, Mac, and Linux Users)

14

•

Two-Line Filter Example

. Insert the two-line filter into the phone outlet and connect the

phone to the phone line connector (

A

), as shown in

Figure 7

.

2.

Connect the wireless modem router to the ADSL filter. Using the included phone cable with

RJ-11 jacks, connect the ADSL port (

B

)

of the wireless modem router to the ADSL port (

C

)

of

the two-line filter, as shown in

Figure 8

.

Figure 7

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.

Installing Your Router Manually (Advanced, Mac, and Linux Users)

15

.

3.

Connect the Ethernet cable (

D

)

from a wireless modem router LAN port to the Ethernet

adapter in your computer, as shown in

Figure 9

.

4.

Connect the power adapter to the wireless modem router and plug it in to a power outlet.

Figure 8

Improperly connecting a filter to your wireless modem router will block

your ADSL connection.

C

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16

5.

Connect any additional wired PCs to your router by inserting an Ethernet cable from a PC into

one of the three remaining LAN ports.

Verifying Your Connection

Verify that your router is connected correctly by checking the wireless modem router status lights.

•

The power light is lit after turning on the wireless modem router.

•

The DSL light is lit, indicating an ADSL connection.

•

The wireless light is lit after turning on the wireless modem router.

•

The Internet light is green, indicating you are connected to the ADSL network.

Now, turn on your computer. If software usually logs you in to your Internet connection, do not run

that software. Cancel it if it starts automatically. Verify the following:

•

The local lights (1 through 4) are lit for any connected computers.

Figure 9

D

D

D