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Table 6.
5 GHz Wireless LED
Icon
LED Activity
Description
Solid blue
There is wireless connectivity.
Blinking blue
Data is being transmitted or received over the 5 GHz wireless link.
Off
There is no wireless connectivity. You can still plug an Ethernet cable into
one of the LAN ports to get wired connectivity.
Table 7.
2.4 GHz Wireless LED
Icon
LED Activity
Description
Solid green
There is wireless connectivity.
Blinking green
Data is being transmitted or received over the 2.4 GHz wireless link.
Off
There is no wireless connectivity. You can still plug an Ethernet cable into
one of the LAN ports to get wired connectivity.
Table 8.
USB LED
Icon
LED Activity
Description
Solid green
A USB port has detected a USB device.
Blinking green
Data is being transmitted or received.
Off
No link is detected on these ports.
Table 9.
LAN LED
Icon
LED Activity
Description
Solid green
A LAN port has detected an Ethernet link with a device.
Blinking green
Data is being transmitted or received.
Off
No link is detected on these ports.
Hardware Setup
16
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
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Table 10.
Power On/Off LED
Icon
LED Activity
Description
Solid green
Power is supplied to the router.
Solid red
POST (power-on self-test) failure or a device malfunction has occurred.
Off
Power is not supplied to the router.
Restore Factory
Settings
Light blinks momentarily when the Restore Factory Settings button on the
bottom of the unit is pressed for 6 seconds. The Power LED then blinks red
three times when the Restore Factory Settings button is released and then
turns green as the gateway resets to the factory defaults.
Hardware Setup
17
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
Position Your Wireless Router
The wireless modem router lets you access your network from virtually anywhere within the
operating range of your wireless network. However, the operating distance or range of your
wireless connection can vary significantly depending on the physical placement of your
router. For example, the thickness and number of walls the wireless signal passes through
can limit the range. For best results, place your router:
Near the center of the area where your computers and other devices operate, and
preferably within line of sight to your wireless devices.
So it is accessible to an AC power outlet and near Ethernet cables for wired computers.
In an elevated location such as a high shelf, keeping the number of walls and ceilings
between the wireless modem router and your other devices to a minimum.
Away from electrical devices that are potential sources of interference, such as ceiling
fans, home security systems, microwaves, PCs, or the base of a cordless phone or 2.4
GHz cordless phone.
Away from any large metal surfaces, such as a solid metal door or aluminum studs. Large
expanses of other materials such as glass, insulated walls, fish tanks, mirrors, brick, and
concrete can also affect your wireless signal.
Note:
The DGND3700 should be put in a vertical position only.
Also be aware that when you use multiple access points, it is better if adjacent access points
use different radio frequency channels to reduce interference. The recommended channel
spacing between adjacent access points is five channels (for example, use Channels 1 and
6, or 6 and 11).
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Hardware Setup
18
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
ADSL Microfilters
If this is the first time you have cabled a wireless router between an ADSL 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
Cable Your N600 Wireless Modem Router
on page 20.
An ADSL microfilter is a small in-line device that filters ADSL interference out of standard
phone equipment that shares the same line with your ADSL service. Every telephone device
that connects to a telephone line that provides ADSL service needs an ADSL microfilter to
filter out the ADSL interference. Example devices are telephones, fax machines, answering
machines, and caller ID displays. Note that not every phone line in your home necessarily
carries ADSL service. That depends on the ADSL service setup in your home.
Note:
Often the ADSL microfilter is included in the box with the wireless
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 (Not Included)
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 ADSL line. Plugging
the wireless modem router into the phone jack blocks the Internet connection. If you do not
have a separate ADSL line for the router, the best thing to do is to use an ADSL microfilter
with a built-in splitter.
Plugs into ADSL line
Figure 5. One-line ADSL microfilter
Second best when you do not have a separate ADSL 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.
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Hardware Setup
19
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
Two-Line ADSL Microfilter (Included)
Use an ADSL microfilter with a built-in splitter when there is a single wall outlet that provides
connectivity for both the wireless modem router and your telephone equipment. Plug the
ADSL microfilter into the wall outlet, plug your phone equipment into the jack labeled Phone,
and plug the wireless modem router into the jack labeled ADSL.
Plugs into the ADSL line
Figure 6. Two-line ADSL microfilter with built-in splitter
Summary
One-line ADSL microfilter (not included). Use with a phone or fax machine.
Splitter (not included). Use with a one-line ADSL microfilter to share an outlet with a
phone and the wireless modem router.
Two-line ADSL microfilter with built-in splitter (included). Use to share an outlet with a
phone and the wireless modem router.
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Hardware Setup
20
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
Cable Your N600 Wireless Modem Router
WARNING:
DO
not
stack equipment, or place equipment in tight spaces, or in
drawers. Be sure your equipment is surrounded by at least
2 inches of air space. The unit should not be wall mounted.
The installation guide that came in the box has a cabling diagram on the first page.
ADSL
Phone
Line
Laptop or desktop
computer
Fiber/Cable modem
Step 1:
Connect to ADSL
if connecting directly
to a DSL line.
Connect to Ethernet WAN
if connecting to a
fiber/cable modem.
Step 2:
Cable your computer.
Step 3:
Power on your router.
Wait until the 2.4 GHz
Wireless LED turns solid
green.
Note:
Add an ADSL filter for every
telephone on the same phone line
as your wireless modem router.
Internet
Internet
Power On/Off
N600 Wireless Modem Router
Note:
Keep the DGND3700
N600 Wireless Modem Router
in a vertical position.
Connect to Internet with ADSL or Ethernet WAN.
Phone cable
Ethernet cable
Ethernet cable
(not included)
Power adapter
N600 Wireless Modem Router
2.4 GHz
Wireless LED
Figure 7. Cabling diagram
CAUTION:
Incorrectly connecting a filter to your wireless modem router blocks your
ADSL connection.
Verify the Cabling
Verify that your router is cabled correctly by checking the wireless modem router LEDs. Turn
on the wireless router by pressing the
Power On/Off
button on the back.
The Power LED is green when the modem router is turned on.
The LAN port is green when a PC is cabled to the router by an Ethernet cable.
The Wireless LEDs are lit when the modem router is turned on.
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