3ah-
2004, October 2004.
2. ???Single-Pair High-Speed Digital Subscriber Line (SHDSL) Transceivers,???
International Telecommunication Union, ITU-T G.991.2, December 2003.
3. ???Single-Pair High-Speed Digital Subscriber Line (SHDSL) Transceivers,???
International Telecommunications Union, ITU-T G.991.2, March 2001.
4. ???Very High Speed Digital Subscriber Line (VDSL) Transceiver,??? International
Telecommunications Union, ITU-T G.993.1, June 2004.
5. ???Asymmetric Digital Subscriber Line (ADSL) Transceivers,??? International
Telecommunications Union, ITU-T G.992.5, April, 2004.
6. ???Very High Speed Digital Subscriber Line (VDSL) Transceiver,??? International
Telecommunications Union, ITU-T G.993.2, May 2006.
147
Chapter 6
Hybrid Fiber-Coax
by Greg White
The predominant technology used to provide Ethernet service over the hybrid fibercoax
cable plant is the Data-Over-Cable Service Interface Specification, or DOCSIS,
standard. The DOCSIS standard provides for a very cost-effective solution when overlaid
on a cable system designed to carry analog and digital video signals. By design, a
DOCSIS network coexists easily with native video services as well as with video settop
box return channels (used for addressability, pay-per-view, video-on-demand, and
so on), and can provide quality of service guarantees that can be used to offer voice
service or service to business customers.
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