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Cable Vs. V.90 Modems - School Essays

Cable Vs. V.90 Modems

Cable modems emerged in consumer markets as an alternative to ISDN and regular modems only a couple of years ago. Promises like speed up 30 Mbps to connect to the internet sounds very attractive given that the service charge is only $35-$55 a month. But the whole thing has been overhyped in my opinion, none of the cable companies mention that the subscribers share the bandwidth plus most cable modems use 10BaseT interface to connect to the PC or Mac which automatically limits the connection to 10 Mbps. Another limitation of cable modems is that ISP’s are connected to the internet back-bone using T1 lines which puts an absolute limits on speed of cable connection to 1.5 Mbps The cable modem ...

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which was developed by MCNS, CabeLabs, Arthur D. Little and consortium of North American MCOs. Later that year CableLabs established certification program that would ensure interoperability among the equipment from different vendors. Certified cable modems are expected to appear in second quarter of 1999.
While waiting for the certificates vendor already started to develop the products that would meet new DOCSIS specification version 1.1 (not finalized yet). Also MCNS together with Broadcom and Terayon are working on implementing an IEEE 802.14 endorsed advanced PHY technology into the DOCSIS spec. The emerging standard will be known as DOCSIS 1.2. The technology will provide a more robust upstream and enable support for more business class applications. DOCSIS 1.0 is able to have download speed 27-36 Mbps per 6 Mhz channel (depends on modulation) and upload speed from 320 Kbps to 10 Mbps. DOCSIS will support Universal Serial Bus (USB) and IEEE 1394 (FireWire) technologies in ...

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Cable Vs. V.90 Modems. (2006, December 5). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Cable-Vs-V-90-Modems/56619

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Added: 12/5/2006 08:06:00 AM
Category: Science & Nature
Type: Premium Paper
Words: 1217
Pages: 5

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