US Robotics usr8000a Guida All'Installazione

8

There are two main reasons why you would want to use either an analogue or ISDN modem with the 

Broadband Router:
•

You use Dial-up Internet service instead of Cable or DSL Internet service.

•

You have Cable or DSL Internet service but want to have an analogue or ISDN backup in case 
your broadband Internet service is unavailable.

The following graphic is a representation of your system topology before the installation of the Broad-
band Router.

Perform the following steps to connect an analogue or ISDN modem, manually change the WAN type, 
and properly configure the Broadband Router:

1

Turn off your PC and your analogue or ISDN modem. 

 If your analogue or ISDN modem is connected to 

your PC using a USB cable, disconnect the USB cable 
from both your PC and from your analogue or ISDN 
modem.

Connect a serial modem cable to your analogue or ISDN 
modem and to the COM port on the Broadband Router.

2

Connect one end of an Ethernet cable to your PC’s Ether-
net adapter. Connect the other end to one of the LAN 

ports on the Broadband Router.