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Broadband ADSL Modem Setup


Please also refer to the Filter Setup Guide to ensure that your other devices are properly connected.



Fig. 1 shows the back of a typical Broadband modem/router - as you can see there are a few different sockets. For you to be able to use your Broadband Internet service, your Broadband modem/router needs at least the following:

  • A connection to a telephone outlet
  • A connection to a mains power outlet
  • A network connection to at least internet-enabled device (e.g. computer, PDA)


For example, in the case of Fig. 1 above you would:

  • Connect the modem/router's ADSL socket to a telephone outlet with a phone cable
  • Connect the modem/router's Power socket to a mains power outlet with the supplied Power Supply Unit (PSU)
  • Connect either (not both!) the modem/router's USB or Ethernet sockets to a computer using one of the supplied cables (as appropriate)

Below are some of the different terms and connection methods you will encounter when setting up your Broadband modem/router.

Network Connections

Ethernet (RJ45)

Ethernet is the preferred method for connecting your computer to your modem/router and should be used if available - it is by far the most reliable connection type, and the easiest to set up.

A big advantage of using Ethernet is that you do not need to install any software for your modem/router to be able to communicate with your computer.


Fig. 3 - RJ45 vs RJ11

It can be easy to confuse an Ethernet connection with a regular phone connection as they are very similar in shape and appearance. Ethernet connections are slightly larger with more pins (Fig. 3). The cable also tends to be thicker, and may also sometimes be coloured (e.g. blue, red or yellow) and/or labelled.

USB (Universal Serial Bus)

USB sockets are commonly found on almost all newer computers, and used by a huge range of devices - for example your mouse, keyboard, printer, digital camera or MP3 player can probably all be connected via a USB cable (Fig. 4 & 5).

However, your broadband modem/router needs software 'drivers' for it to be able to communicate with your computer which makes USB more difficult to set up more prone to errors/connection issues. Other factors such as a large number of other USB devices, or an old/slow computer, may also contribute to these issues.

Telephone connection (RJ11/12)

This is the plug type used for connecting devices to a wall outlet, such as a normal telephone handset or your broadband modem/router. As shown in Fig. 3 above, the connector is smaller and has fewer pins than an Ethernet cable.

'605' Sockets
605 is the older '3-pin' style wall outlet commonly found in older houses. If you have this type of outlet, you will need an adapter to connect an RJ11/12 cable - click here for more information.


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