Installing the External ethernet ADSL Modem and filters

This short document will instruct you on setting up your new external ADSL Modem making sure that it acquires "sync".

Step 1: Preparing your phones

Because your DSL service is provisioned through the phone lines in your home, it is necessary to install filters for every phone in your home. Otherwise, voice communication becomes difficult due to the noise of the DSL signal that can be heard over the telephone and also the signal strength of your DSL service degrades sharply. At one end of the filter is a simple RJ-11 male plug that will plug into either your telephone jack or one jack on a splitter. The other end of the filter has a RJ-11 female end that the line from your telephone or telephony device will plug into.

Step 2: Setting up the ADSL Modem

Once all your phones have been properly filtered, we can setup your ADSL Modem.

On the back of the ADSL Modem there are different plugs and jacks that can be attached. Plug the DC power adapter into the appropriate plug on the modem. Next, take the RJ-45 network cable and plug one end into the 10Base-T port on the back of the modem, and the other end into the similar port in the back of your computer. Finally, plug the standard telephone cable that you were given and plug one end into the ADSL port on the back of the modem, and the other end into your telephone jack on your wall, or one end of the splitter if you installed one.

Step 3: Powering on the ADSL Modem for the first time

On the front of the modem we are interested in the ADSL light. When you first turn the modem on it will be dark for a few moments. Then the light will start to flash. The light will flash for approximately 15 seconds to a minute and then stay constantly lit. At that point you have synchronization and can proceed with installing the PPPoE software.

If, however, the ADSL Modem does not sync within one minute there are several things you can do to correct the problem.

  1. Verify there is NO line filter attached to the ADSL Modem, or the line connecting it to your telephone jack or splitter. The filters are meant to block the DSL signal so that you do not hear them on your phone and therefore prevent the ADSL Adapter from picking up the signal.
  2. Verify that there is a filter on every phone within your home that is on the same line as your DSL service. Not having a filter on a telephone line is enough to split the signal strength to the point where the ADSL Modem will not be able to synchronize with the service. This goes for FAX machines and any other device that makes use of the telephone line.
  3. Make sure the connection from the ADSL Modem to the telephone jack on your wall is securely in place. Make sure that the connection isn't loose or has been pulled out by error.
  4. If all else fails, contact Istop.com's technical support by email at support@istop.com