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Broadband FAQs

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>	What is Broadband?
	Broadband is high-speed Internet access with high rate of data transmission. Broadband in telecommunications means a wide range of frequencies that are available to transmit information. This ultimately means that the wider the range of frequencies available, the high the amount of information that can be sent at one given time.
>	How does broadband work?
	Broadband Internet connects your computer to the Internet using your regular household telephone lines (DSL Internet) or cable modem (Cable Internet). Wireless broadband connects a home or business to the Internet using a radio link between the customer's location and the service provider's facility.
>	How broadband is different from dial-up?
	Broadband Internet is 10 to 100 times faster than a 56 kbps Dial-up connection. Broadband Internet is more reliable than Dial-up as it is "always on" connectivity, users can connect to the internet any time they want.
>	What types of broadband service are there?
	DSL (Digital Subscriber Line) – DSL uses existing copper pair phone line wiring in conjunction with special hardware on the switch and user ends of the line. This special hardware allows for a continuous digital connection over the phone lines. Cable or Cable Modem - Cable operators provides broadband using the same coaxial cables that deliver pictures and sound to your TV set. They provide transmission speeds of 1.5 Mbps or more. Wireless - Wireless Internet is a High Speed Internet access using a radio link between the customer's location and the service provider's facility. Satellite - Just as satellites orbiting the earth provide necessary links for telephone and television service, they can also provide links for broadband. Satellite broadband is another form of wireless broadband, also useful for serving remote or sparsely populated areas.
>	What types of DSL service are there?
	ADSL (Asymmetric Digital Subscriber Line) employs two different transmission speeds, with the downstream speed (from the provider to the user) usually being much higher than the upstream speed (from the user to the corporate host). ADSL can achieve downstream data rates up to 8 Mbps and upstream rates to 1 Mbps. IDSL (ISDN Digital Subscriber Line) is a form of DSL that uses ISDN provisioning and testing, and can coexist with current analog and ISDN services. IDSL is usually limited to 144 Kbps upstream and downstream, but can sometimes provide further reach than other DSL solutions because it does not have the same distance limitations. VDSL (Very High Speed Digital Subscriber Line) promises even higher speeds than ADSL, although over much shorter distances. Standardization on speeds and technological specifications are currently in progress. RADSL (Rate Adaptive Digital Subscriber Line) adjusts the data transmission rate to match the quality of the phone line. RADSL users get the very best performance their telephone line is conditioned to provide, providing transmission rates of up to 7 Mbps downstream and 1 Mbps upstream. HDSL/SDSL (High Data Rate Digital Subscriber Line/Symmetric Digital Subscriber Line) utilize two standard phone lines for 1.5 Mbps transmission speeds and offer the capability to combine three phone lines for 2.0 Mbps speeds. HDSL and SDSL are intended as lower cost replacements for dedicated and fractional T-1 lines 2 .

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