INDUSTRY LEADER

What Can DOCSIS PNM Do For Me?

By Brady S. Volpe — Proactive network maintenance (PNM) has been steadily growing in acceptance and popularity over the past several years with adoption amongst cable operators from Tier 1 such as Comcast all the way to the smallest Tier 4 operators.

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An Introduction to PNM

By Ron Hranac — Linear distortions—micro-reflections, amplitude ripple/tilt, and group delay distortion—wreak havoc upon the digital signals carried in our cable networks.

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Frontiers in PNM

By Alberto Campos — Cable has enjoyed advances in HFC network troubleshooting leveraging proactive network maintenance tools. PNM uses the intelligence of transport devices like the cable modem (CM) and the cable modem termination system (CMTS) for network maintenance purposes.

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PNM and Associated Standards

By Chris Bastian — Network architectures and operations have become more complex in the past few decades. When I began working in telecommunications in the mid-1980s, telecom networks were still using circuit switches such as the 5ESS and DMS-100.

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PNM: State-of-The-Art and 2019 Roadmap

By Larry Wolcott — I was recently sorting through some old notebooks and stumbled across a few pages that were dated 2009. The drawings and formulas were the early conception of our PNM (proactive network maintenance) signature matching algorithm.

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PNM at CableLabs®

By Jason Rupe — CableLabs went into high gear with proactive network maintenance (PNM) not long ago and has big plans for the future of PNM. Success will rely on the cable community’s strong focus on furthering PNM in several directions.

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Full-Band Capture Takes the Stage

By Jeff Finkelstein — For anyone who has been in cable a long time, for some of us a very long time, we remember how challenging it was to troubleshoot plant impairments in the headend and field. Not just in finding and correcting, but in dealing with the equipment we used in the day.

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Beyond the Headend — It’s a Game of Numbers

By Sandy Howe – We measure business performance through numbers. They tell us about our customers, guide us in our technology decisions and show us where to improve. Opex. Capex. EBITA. ROI. Number of subscribers. Speed of network. Number of nodes. Peak times. Energy consumption. Energy 2020.

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A Win-Win for Teleste, SOFC.nl and Cable

By Sam Khola – When Teleste and SOFC.nl Holding walked off with awards in the Adaptive Power Challenge at SCTE•ISBE Cable-Tec Expo, it was the culmination of a months-long competition that was designed to spur innovation around reducing energy usage by cable system operators.

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