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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 />21 <br />