Frequently Asked Questions

Why is Asymmetric Digital Subscriber Line (ADSL) called Asymmetric?click for answer
What are the benefits of ADSL over analog modems?click for answer

What is USB?

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Will my modem constantly connect near the maximum speed?click for answer
Can I use my modem during thunderstorm?click for answer
Do I need to install additional telephone lines in order to use ADSL?click for answer
Will my old PC be fast enough for ADSL?click for answer
How can I send/receive fax as well as surf the Internet at the same time?click for answer
Do I need to use Micro-Filter when using ADSL?click for answer
How do I know that I have successfully installed my modem driver? click for answer
I am not able to connect to the Internet.click for answer
What is the function of the CSA icon that is on my system tray? click for answer
How do I add or remove the CSA iconon my system tray? click for answer
How do I monitor the performance of my modem? click for answer
My line connection speed indicated at the Modem dial-up status dialog box is different from the actual speed. click for answer

I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from my desktop or/and the DSL500U ADSL USB Modem Dial-Up icon from the Dial-up Networking / Network and Dial-up Connections window. How should I get it back?

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How do I remove (uninstall) my modem driver? click for answer
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Why is Asymmetric Digital Subscriber Line (ADSL) called Asymmetric?
It is called asymmetric because more bandwidth is reserved for receiving data than for sending data. This is useful because many users of the Internet receive much more data than they send.  

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What are the benefits of ADSL over analog modems ?
Besides the high-speed advantage, ADSL connection is always on. There is no longer a need to log on and off, no more busy signals and no more waiting for the connection to establish - it is always there. On top of these, you can use the phone even when the data connection is on. You do not need to switch between surfing the Net and talking over the phone.  

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What is USB?
USB stands for Universal Serial Bus. It is a new peripheral bus standard developed by PC and Telecom leaders. It allows connection for low to medium speed computer peripherals. USB features high throughput I/O transfer rate of 12Mbit/sec and support up to 127 devices.

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Will my modem constantly connect near the maximum speed?

At ADSL speeds, the limitations depend on the performance or load of the ADSL Service Provider that you are trying to reach, as well as the line condition specific to your location.  

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Can I use my modem during thunderstorm?
ADSL modems can be damaged by thunderstorms. Our product warranty does not apply to damage caused by lightning. If your area is frequent in thunderstorms, you are advised to use a surge protector. Certain surge protectors have been reported to reduce download speed, so you are advised to test your speed before and after installation to make sure that it adds no problems to your line.  

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Do I need to install additional telephone lines in order to use ADSL?

No, you do not need to do so. ADSL and standard voice telephones operate at different sets of frequencies. The difference in frequencies allows both IP (Internet) traffic and voice traffic to co-exist on the same physical phone line.  

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Will my old PC be fast enough for ADSL?
Yes. Limitation comes in only when the ADSL line is used to view video-on-demand or other memory and processor hungry content. Your old PC may be too slow in such cases.  

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How can I send/receive fax as well as surf the Internet at the same time?

To send/receive fax, you may connect your fax machine to the TEL  jack via a Micro-Filter, similar to the Telephone Set connection as illustrated in Step 1 of the manual.

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Do I need to use Micro-Filter when using ADSL?

Micro-Filter is required if you are sharing your ADSL line with your telephone. The Micro-Filter will eliminate noise on the telephone line to ensure the best possible phone performance. If the ADSL uses a different line and not sharing with your Telephone Set, then a Micro-Filter will not be necessary.

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How do I know that I have successfully installed my modem driver?
  1. Ensure that your computer is powered on.

For Windows® 98SE / Me
- From your Windows desktop, right-click on My computer icon and select Properties.
- Select the Device Manager tab. Double-click on Network adapters.

For Windows® XP
(instructions are based on default Start menu)
- Click Start. Right-click on My Computer and select Properties.
- Click on the Hardware tab and Device Manager button.

For Windows® 2000
- From your Windows desktop, right-click on My computer icon and select Properties.

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Click on the Hardware tab and Device Manager button.

  1. You should see DSL500U ADSL USB Modem listed. This means that your modem has been installed successfully.

If you see an exclamation mark displayed besides your modem device, it means that you have not installed your driver properly. Click on the device and select Remove. Install your driver again.

If your modem device is not listed at all, it also means that you did not install the driver properly. Install your driver again.

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I am not able to connect to the Internet.

Run the diagnostics (DSL Test) that comes with your modem package.

  1. Ensure that your modem is powered on. 

  2. On your Windows desktop, double-click on DSL Test icon. (The shortcut icon was created when you have installed the modem driver successfully). 

You will see 4 tests with 4 black boxes.  Click Start Test. System will perform all 4 tests automatically.

  1. Upon successful tests, all the black boxes will turn green. 

You may click View Log to view the errors if encountered. The view log screen shown below confirms that there are no errors found if all tests are successful.

If errors are encountered, click View Log to view the errors and rectify it shown below.

Errors would be displayed in the View log screen as shown above. Click on the "Fix it" button to rectify the errors. The following screen appears. Click OK to proceed.

You would encounter the following screen below after all errors are rectified.

If all else fails, please contact your ADSL Service Provider for assistance.

 

  1. Click Close to exit.

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What is the function of the CSA icon that is on my system tray?
Selecting the CSA icon allows you to monitor the performance of your modem. For details, see 'How do I monitor the performance of my modem'.

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How do I add or remove the CSA icon on my system tray?

To add or remove the CSA icon, click Start > Programs > DSL500U ADSL USB Modem.  (For Windows® XP: Click Start > All Programs > DSL500U ADSL USB Modem). Select either Add CSA Tray Icon to add the CSA icon on your system tray or Remove CSA Tray Icon to remove the CSA icon from your system tray. 

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How do I monitor the performance of my modem?

  1. Once the driver has been properly installed, you will see an CSA icon 
    on your Windows system tray.

  2. Double-click on the icon.

The ADSL Control and Status monitors the ADSL link connection status.  To be able to dial-up to the Internet, the Connection Status must show ADSL link connected.  If not, click Connect.  

The Modem Performance shows the transmitting and receiving rate during the data transfer.

  1. Click Close to exit.

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My line connection speed indicated at the Modem dial-up status dialog box is different from the actual speed.
The Media parameters and ATM Media parameters which stores the detailed information about a specified call does not store the link speed. Thus, the speed that you see may differ.

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I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from my desktop or/ andthe DSL500U ADSL USB Modem Dial-Up icon from the Dial-up Networking / Network and Dial-up Connections window. How should I get it back?

Solution : Run the DSL Diagnostics Test. You will encounter several "fail" error messages during the test (this is normal). Click on "FIXIT" and the icon will be automatically created.

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How do I remove (uninstall) my modem driver?

  1. To remove your modem driver, click Start > Programs DSL500U ADSL USB Modem > Remove Modem Driver.
  2. At the prompt for restart, remove the USB cable connection and restart your system.

Alternatively, you may remove your modem driver from your Control Panel (Start > Settings).  Double-click on Add/Remove Programs and select DSL500U ADSL USB Modem. Click Remove to uninstall the modem driver. Follow any on-screen instructions to complete the uninstallation.

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