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P-663HN-51 User’s Guide
21
C
HAPTER
1
Introducing the ZyXEL Device
This chapter introduces the main applications and features of the ZyXEL Device. It
also introduces the ways you can manage the ZyXEL Device.
1.1
Overview
The ZyXEL Device is an ADSL2+ pair bonding gateway that allows super-fast
Internet access over analog (POTS) telephone lines. It bonds two ADSL2+ lines
into a single logical connection to provide increased throughput at longer
distances. The ZyXEL Device also provides IEEE 802.11b/g/n wireless networking
to extend the range of your existing wired network without additional wiring.
In the ZyXEL Device product name, “H” denotes an integrated 4-port switch (hub).
Model names ending in “1”, for example P-663HN-51, denote a device that works
over the analog telephone system, POTS (Plain Old Telephone Service). The DSL
RJ-14 connects to your ADSL-enabled telephone lines.
Only use firmware for your ZyXEL Device’s specific model. Refer
to the label on the bottom of your ZyXEL Device.
The ZyXEL Device provides protection from attacks by Internet hackers. By
default, the firewall blocks all incoming traffic from the WAN. See
Chapter 29 on
page 209
for a full list of features.
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Chapter 1 Introducing the ZyXEL Device
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22
A typical Internet access application is shown below
Figure 1
Protected Internet Access Applications
You can also use the ZyXEL Device to connect two geographically dispersed
networks over the ADSL line. A typical LAN-to-LAN application example is shown
as follows.
Figure 2
LAN-to-LAN Application Example
The ZyXEL Device is compatible with the ADSL/ADSL2/ADSL2+ standards (see
Table 76 on page 209
for more details). Using ADSL2+, the ZyXEL Device can
attain a maximum downstream rate of about 44 Mbps.
1
Note: The standard your ISP supports determines the maximum upstream and
downstream speeds attainable. Actual speeds attained also depend on the
distance from your ISP, line quality, etc.
1.2
Ways to Manage the ZyXEL Device
Use any of the following methods to manage the ZyXEL Device.
1.
This is the theoretical maximum rate under ideal conditions.
WLAN
WLAN
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Chapter 1 Introducing the ZyXEL Device
P-663HN-51 User’s Guide
23
•
Web Configurator. Use this for everyday management of the ZyXEL Device using
a (supported) web browser.
•
SNMP. The device can be monitored by an SNMP manager. See the SNMP
chapter in this User’s Guide.
1.3
Good Habits for Managing the ZyXEL Device
Do the following things regularly to make the ZyXEL Device more secure and to
manage the ZyXEL Device more effectively.
•
Change the password. Use a password that’s not easy to guess and that consists
of different types of characters, such as numbers and letters.
•
Write down the password and put it in a safe place.
•
Back up the configuration (and make sure you know how to restore it).
Restoring an earlier working configuration may be useful if the device becomes
unstable or even crashes. If you forget your password, you will have to reset the
ZyXEL Device to its factory default settings. If you backed up an earlier
configuration file, you would not have to totally re-configure the ZyXEL Device.
You could simply restore your last configuration.
1.4
Hardware Connections
See the Quick Start Guide for the ZyXEL Device’s main hardware connections.
1.4.1
Connecting POTS Splitters
Use POTS (Plain Old Telephone Service) splitters to separate the telephone and
ADSL signals. This allows simultaneous Internet access and telephone service on
the same line. A splitter also eliminates the destructive interference conditions
caused by telephone sets.
Install the POTS splitters at the point where the telephone lines enter your
premises.
1
Connect the side labeled “Phone” to your telephone.
2
Connect the side labeled “Modem” or “DSL” to your ZyXEL Device.
3
Connect the side labeled “Line” to the telephone wall jack.
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24
1.4.2
Telephone Microfilters
Telephone voice transmissions take place in the lower frequency range, 0 - 4KHz,
while ADSL transmissions take place in the higher bandwidth range, above 4KHz.
A microfilter acts as a low-pass filter, for your telephone, to ensure that ADSL
transmissions do not interfere with your telephone voice transmissions. The use of
a telephone microfilter is optional.
1
Locate and disconnect each telephone.
2
Connect a cable from the wall jack to the “wall side” of the microfilter.
3
Connect the “phone side” of the microfilter to your telephone as shown in the
following figure.
4
After you are done, make sure that your telephone works. If your telephone does
not work, disconnect the microfilter and contact either your local telephone
company or the provider of the microfilter.
Figure 3
Connecting a Microfilter
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25
1.5
System Startup and LEDs
After you are done making the hardware connections, press the power button to
the
ON
position. Look at the LEDs (lights) on the front panel. The following figure
shows the ZyXEL Device’s LEDs.
Figure 4
Front Panel

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