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Page 51 / 110 Scroll up to view Page 46 - 50
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4:Configuration
50
Upstream:
Display current upstream rate of your ADSL line.
Downstream:
Display current downstream rate of your ADSL line.
Advanced Options
ADSL Parameters help to interpret your ADSL line statistics.
SNR Margin:
It is known as Signal to Noise Ration Margin. It is the relative of DSL strength to Noise
ratio. This margin is measured in decibels (dB).
Higher the dB figures better the DSL strength and better
chance to get faster speed. THE HIGHER THE BETTER
Line Attenuation:
it measures the signal loss in decibel (dB) between the CO DSLAM. Lower the
attenuation dB figures better the DSL strength/speed.
THE LOWER THE BETTER.
CRC Errors:
It is known as Cyclic Redundancy Check Error.
Its checksum is to detect the transmission
error.
Latency:
It includes two channels, Fast and Interleaved. It displays the channel adapted by your ISP.
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4:Configuration
51
System
There are six items within the
System
section:
Time Zone, Remote Access, Firmware Upgrade,
Backup/Restore, Restart
and
User Management.
Time Zone
The router does not have a real time clock on board; instead, it uses the Simple Network Time Protocol
(SNTP) to get the current time from an SNTP server outside your network. Choose your local time zone,
click
Enable
and click the
Apply
button. After a successful connection to the Internet, the router will
retrieve the correct local time from the SNTP server you have specified. If you prefer to specify an SNTP
server other than those in the list, simply enter its IP address as shown above. Your ISP may provide an
SNTP server for you to use.
Daylight Saving
is also known as
Summer Time Period.
Many places in the world
adapt it during
summer time to move one hour of daylight from morning to the evening in local standard time.
Check
Automatic
box to auto set your local time.
Resync Period
(in minutes) is the periodic interval the router will wait before it re-synchronizes the
router’s time with that of the specified SNTP server. In order to avoid unnecessarily increasing the load
on your specified SNTP server you should keep the poll interval as high as possible – at the absolute
minimum every few hours or even days.
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4:Configuration
52
DO NOT power down the router or interrupt the firmware upgrading while
it is still in process.
Improper operation could damage the router.
Remote Access
To temporarily permit remote administration of the router (i.e. from outside your LAN), select a time
period the router will permit remote access for and click
Enable.
You may change other configuration
options for the web administration interface using
Device Management
options in the
Advanced
section of the GUI.
If you wish to permanently enable remote access, choose a time period of
0
minutes.
Firmware Upgrade
Your router’s “firmware” is the software that allows it to operate and provides all its functionality. Think of
your router as a dedicated computer, and the firmware as the software it runs. Over time this software
may be improved and modified, and your router allows you to upgrade the software it runs to take
advantage of these changes.
Clicking on
Browse
will allow you to select the new firmware image file you have downloaded to your
PC. Once the correct file is selected, click Upgrade to update the firmware in your router.
Warning
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4:Configuration
53
Backup / Restore
These functions allow you to save and backup your router’s current settings to a file on your PC, or to
restore a previously saved backup. This is useful if you wish to experiment with different settings,
knowing that you have a backup handy in the case of any mistakes. It is advisable to backup your
router’s settings before making any significant changes to your router’s configuration.
Press
Backup
to select where on your local PC to save the settings file. You may also change the name
of the file when saving if you wish to keep multiple backups.
Press
Browse
to select a file from your PC to restore. You should only restore settings files that have
been generated by the Backup function, and that were created when using the
current version
of the
router’s firmware.
Settings files saved to your PC should not be manually edited in any way.
After selecting the settings file you wish to use, pressing
Restore
will load those settings into the router.
Restart Router
Click
Restart
with option
Current Settings
to reboot your router (and restore your last saved
configuration).
If you wish to restart the router using the factory default settings (for example, after a firmware upgrade
or if you have saved an incorrect configuration), select
Factory Default Settings
to reset to factory
default settings.
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4:Configuration
54
You may also reset your router to factory settings by holding the small Reset pinhole button more than 6
seconds on the back of your router.
Caution: After pressing the RESET button for more than 6 seconds, to be sure you power cycle the device
again.
User Management
In order to prevent unauthorized access to your router’s configuration interface, it requires all users to
login with a password. You can set up multiple user accounts, each with their own password.
You are able to
Edit
existing users and
Create
new users who are able to access the device’s
configuration interface. Once you have clicked on
Edit,
you are shown the following options:
You can change the user’s
password
, whether their account is active and
Valid
, as well as add a
comment to each user account. These options are the same when creating a user account, with the
exception that once created you cannot change the username. You cannot delete the default admin
account, however you can delete any other created accounts by clicking
Delete
when editing the user.
You are strongly advised to change the password on the default “
admin
” account when you receive your
router, and any time you reset your configuration to Factory Defaults.

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