DOCSIS Digital Library

DOCSIS Digital Document Library | Your source for critical DOCSIS documents, test and measurement technology notes, guides & specificaitons.

The DOCSIS Digital Document Library documents are standard reading for any broadband engineer / technician.  I have posted this documents in the document library as a quick reference.  They are freely available in other sources, but sometimes it is nice to have them all in one location.  Please also see our blog for numerous posts on all thing DOCSIS.  We also feature our DOCSIS tutorials which are openly available.

DOCSIS 3.0 Based Specifications

DOCSIS 3.1 Based Specifications

Proactive Network Maintenance (See More at Nimble This)

  • PNM Best Practices: HFC Networks (DOCSIS 3.0) – As cable networks evolve, and many diverse services such as telephony, data, video, business and advanced services (e.g., tele-medicine, remote education, home monitoring) are carried over those networks, the demand for maintaining a high level of reliability for services increases. To achieve such high reliability, operators should fix problems before they have any impact on service.

    Upstream Priorities for Reliable Proactive Network Maintenance – A PNM Working Group Point of View. Prepared by, PNM Working Group

ANSI/SCTE Specifications

  • ANSI/SCTE 07 2013 Digital Transmission Standard for Cable Television.  This standard describes the framing structure, channel coding, and channel modulation for a digital multi-service television distribution system that is specific to a cable channel. The system can be used transparently with the distribution from a satellite channel, as many cable systems are fed directly from satellite links. The specification covers both 64 and 256 QAM. Most features of both modulation schemes are the same. Where there are differences, the specific details for each modulation scheme is covered.
  • SCTE 280The DOCSIS® 3.0 specification introduced full band capture (FBC), a groundbreaking feature that enables cable modems to report radio frequency (RF) spectrum data, revolutionizing how cable operators monitor RF performance. This Industry Reference (IR) explores cable RF fundamentals, spectrum analysis tools, and practical techniques to identify and resolve common cable impairments such as damaged cables, faulty amplifiers, and loose connectors. Designed for technicians, engineers, and operational teams, it aims to improve RF spectrum interpretation, repair times, and reduce rework. Applicable to DOCSIS 3.0 and higher devices with FBC functionality, the IR provides a consistent framework for maintaining coaxial cable networks and ensuring reliable service delivery.

Application Documents

  • Agilent Spectrum Analysis Basics AN-150
    This app note from Agilent is a premier tutorial on spectrum analyzer basics, but does not stop there.  It goes into much of the mathematical details of how correction coefficients are calculated for digital signals.  This is a must read for anyone in broadband communications.
  • Spectrum Analyzer Measurements and Noise
    When using a spectrum analyzer to make measurements in any system, it is likely that one will attempt to measure signals which are very close to the noise floor.  Making these measurements close to the noise floor will cause errors.  This document explains why and how to correct for the errors.

DOCSIS Documents are the Courtesy of the Authors

DOCSIS Cable Modem

DOCSIS CMTS

RF Primer

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