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NSCC Executive Summary CBG Communications, Inc. <br /> • Status Monitoring <br /> Comcast has deployed numerous tools to monitor the operation of the network in real- <br /> time. These tools monitor all of the cable modems in the system showing areas of the <br /> system that are not responding and that,therefore, are experiencing an outage. Other <br /> monitoring tools provide data on the performance of the network. For instance,the signal <br /> to noise ratio or C/N and other distortions can be measured and monitored throughout the <br /> system via cable modems at subscribers' homes and businesses. Other monitoring tools <br /> can measure the health of power supplies in the system and alert Comcast when issues <br /> arise that need further troubleshooting and repair. These tools can provide Comcast with <br /> data showing where problems occur and often times staff can react to, and repair, <br /> problems before the network user knows of the problem. <br /> As stated above, Comcast employs several tools to perform ongoing monitoring of its <br /> residential network. These tools are at least comprable to monitoring systems in place in <br /> other cable systems throughout the country. <br /> • Compliance with the National Electrical Code(NEC) and National Electrical <br /> Safety Code (NESC) <br /> CBG performed an independent system drive-out to note any problems with the system <br /> plant and drops to residences and businesses pertaining to the condition of underground <br /> and aerial appurtenances, grounding and bonding, as well as clearance and attachment <br /> issues. If a system is not properly maintained,problems will arise with the aesthetics of <br /> the system,but more important, such issues result in potential safety problems. In <br /> addition to appearance and safety issues, the integrity of the cable plant is important for <br /> proper operation of the network and its ability to deliver high quality signals in a reliable <br /> manner. <br /> CBG performed an inspection of a representative sampling of areas throughout each of <br /> the 10 member cities. During this sampling, we identified approximately 300 issues that <br /> are either violations of NEC or NESC codes or are simply outside of good engineering <br /> practices. Examples of our findings include: <br /> viii <br />