Laserfiche WebLink
NSCC Executive Summary CBG Communications, Inc. <br />The major findings and recommendations of CBG's review are outlined in this Executive <br />Summary, with more detailed information, supporting data and recommendations that <br />will be provided in a Final Report. <br />II. Summary of Major Findings related to Comcast's Residential Network <br />Comcast is operating a Hybrid Fiber Coaxial cable (HFC) network that is designed to <br />provide video (Cable TV), Internet and data services and telephone services to most <br />addresses within the 10 members cities comprising the NSCC service area. <br />CBG reviewed many facets of the subscriber network, including bandwidth (or capacity), <br />system architecture, system performance, system maintenance and monitoring, and <br />system facilities. A high level summary of each of these areas is provided below. <br />• System Design and Architecture <br />Comcast's system uses fiber optic infrastructure to send and receive signals to /from <br />nodes located in neighborhoods, throughout the NSCC area, where forward (or <br />downstream) signals are transformed from light, on the fiber optic infrastructure, to Radio <br />Frequencies (RF) for insertion onto the coaxial cable infrastructure for ultimate <br />transmission and distribution to residents and businesses served by the particular node. <br />Forward (or downstream) services include all analog, standard definition (SD) digital and <br />high definition (HD) digital channels including Video -On- Demand (VOD). Additionally, <br />Internet data, traveling from Comcast's headend or hub to subscribers, and telephone or <br />voice service to subscribers is carried on the forward /downstream portion of the network. <br />In addition, the nodes receive RF signals from subscribers via the coaxial infrastructure <br />which feeds these signals into the node. The node converts these signals to light for <br />transmission, via the fiber optic infrastructure, to Comcast's headend or hub. Some <br />return signals include upstream data, ordering information for VOD and other video <br />services as well as telephone traffic. <br />15 <br />