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Chapter 12. Home Networking Protocols > Broadband Internet Access

12.1. Broadband Internet Access

A popular home network application is for sharing of a broadband access service, such as an ADSL line or a cable modem, among multiple PCs and their users in a household. Let us first examine what is involved in connecting a single user to the ADSL service. Figure 12.1 shows the general ADSL installation for a single PC at a household. With the splitterless installation approach, an ADSL modem can be located anywhere in a household as long as a regular RJ-11 telephone jack is available. For this approach, microfilters sometimes might need to be inserted between those RJ-11 jacks and the connected telephone sets to isolate low input impedances of telephone sets at high frequencies from interfering with the proper operation of the ADSL modem. The connection between the ADSL modem and the PC is usually done via a crossover Category 5 patch cable.

Figure 12.1. Broadband Access via ADSL



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