com/projects/cablehome/specifications/.
6. PacketCable specifications may be found at the CableLabs PacketCable website:
www.packetcable.com/specifications/.
7. Various articles, Cable Digital News (February 2002, February 2003, May 2003,
June 2006, October 2006, April 2007): www.cabledigitalnews.com.
8. John, Brouse, ???Fiber Access Network: A Cable Operator??™s Perspective,??? ITU-T All
Star Network Access Workshop, June 2004: www.itu.int/ITU-T/worksem/asna/
index.html.
163
Chapter 7
Passive Optical Networks (PONs)
by Marek Hajduczenia, Glen Kramer, and Lowell Lamb
Passive optical networks (PONs) are poised to address the first mile in the telecommunication
infrastructure, spanning between the service provider central office (CO)/point
of presence (POP) and residential/business customers. Currently, the access network
structure consists predominantly, in residential areas, of copper telephone wires or
coaxial cable television (CATV) cables, whereas in metropolitan areas, where there is
a high concentration of business customers, it also includes high-capacity synchronous
optical network (SONET/ATM) rings, optical T3 lines, and copper-based T1s.
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