Cable Modem Service Broadband Internet Access. Cable Modem Service Service of Cable Television Companies –Deliver 10 Mbps downstream to the home –Capacity.

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Presentation transcript:

Cable Modem Service Broadband Internet Access

Cable Modem Service Service of Cable Television Companies –Deliver 10 Mbps downstream to the home –Capacity is shared by multiple subscribers, so real speed is more limited –Limited to about 64 kbps to 256 kbps upstream –Does not tie up telephone line –Always available Cable TV Network Cable TV Network Also ISP Functions Also ISP Functions Cable Modem Cable Modem

Cable Modem Sharing in Perspective Sharing is Not as Extreme as it May First Appear –Usually, shared within Blocks of 500 Houses –Only Some Households in Block will Subscribe –Only Some Subscribers will be Online at Any Moment –Only Some of Online Subscribers will Send and Receive at Any Moment –Only these will Share the Capacity So Sharing Does Not Reduce Speed Unless the Adoption Rate is Large

Cable Modem Service Cost is about $50 per Month –Includes ISP service! –Installation usually costs $100 to $150 and includes a cable modem and a network interface card –Best alternative today beyond V.90 modem –Cost-competitive with adding a second phone line to handle your modem communication