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24
C
HAPTER
2: I
NSTALLING
THE
R
OUTER
Figure 6
Connecting the Router (with splitter)
Figure 7
Connecting the Router (without splitter)
1
Run the provided telephone cable from the wall jack providing ADSL
service to the ADSL port on your Router. When inserting an ADSL
RJ-11(Annex A) or RJ-45 (Annex B) plug, be sure the tab on the plug
clicks into position to ensure that it is properly seated. If you are using
splitterless ADSL service, add low-pass filters between the ADSL wall jack
and your telephones. (These filters pass voice signals through but filter
data signals out.)
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Connecting the Router
25
2
Then:
■
If you are using a full-rate (G.dmt) connection, your service provider
will attach the outside ADSL line to a data/voice splitter. In this case
you can connect your phones and computer directly to the splitter as
shown below (
Figure 8
):
or
■
If you are using a splitterless (G.lite) connection, then your service
provider will attach the outside ADSL line directly to your phone
system. In this case you can connect your phones and computer
directly to the incoming ADSL line, but you will have to add low-pass
filters to your phones as shown below (
Figure 9
)
Figure 8
Installing with a splitter
Voice
Data
Residential
Connection
Point (NID)
Plain Old
Telephone
System (POTS)
or
Ethernet
switch
Splitter
ADSL Router
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26
C
HAPTER
2: I
NSTALLING
THE
R
OUTER
Figure 9
Installing without a splitter
You have now completed the hardware installation of your Router. Next
you need to set up your computers so that they can make use of the
Router to communicate with the Internet.
3Com recommends that you perform the initial Router configuration
from a computer that is directly connected to one of the LAN ports.
If you configure the Router from a wireless computer, note that you may
lose contact with the Router if you change the wireless configuration.
To communicate wirelessly with your Router, your wireless NIC should be
set as follows:
■
Encryption — none
■
SSID — 3Com
■
Channel — 11
Plain Old
Telephone
System (POTS)
Filter
or
Voice
& Data
Voice
& Data
Data
Voice
ADSL Router
Residential
Connection
Point [Network
Interface
Device (NID)]
Ethernet
switch
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3
S
ETTING
U
P
Y
OUR
C
OMPUTERS
The Router has the ability to dynamically allocate network addresses to
the computers on your network, using DHCP. However, your computers
need to be configured correctly for this to take place. To change the
configuration of your computers to allow this, follow the instructions in
this chapter.
Obtaining an IP
Address
Automatically
Windows 2000
If you are using a Windows 2000-based computer, use the following
procedure to change your TCP/IP settings:
1
From the Windows
Start
Menu, select
Settings
>
Control Panel
.
2
Double click on
Network and Dial-Up Connections
.
3
Double click on
Local Area Connection
.
4
Click on
Properties
.
5
A screen similar to
Figure 10
should be displayed. Select
Internet Protocol
TCP/IP
and click on
Properties
.
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28
C
HAPTER
3: S
ETTING
U
P
Y
OUR
C
OMPUTERS
Figure 10
Local Area Properties Screen
6
Ensure that the options
Obtain an IP address automatically
, and
Obtain
DNS server address automatically
are both selected as shown in
Figure 11
. Click
OK
.
Figure 11
Internet Protocol (TCP/IP) Properties Screen
7
Restart your computer.
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