CableLabs® Certifies Two
DOCSIS® 2.0 Modems

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CableLabs® announced recently that it has awarded DOCSIS® 2.0 and DOCSIS 1.1 certified status to cable modems from Motorola and Terayon in the recently completed Certification Wave 30. CableLabs also announced that it had recertified a DOCSIS 1.1 modem from Electroline that is equipped with technology to help cable operators gauge network reliability on cable systems.

There are hundreds of DOCSIS (Data over Cable Service Interface Specification) cable modems and cable modem termination systems that have been certified or qualified, respectively.

DOCSIS 2.0 adds advanced digital modulation capabilities to cable modems and headend equipment enabling cable companies to increase the speed of the return (or upstream) path of their networks. DOCSIS 2.0 provides not only significantly higher channel capacity, but also better robustness against the impairments found in noisy cable plants. It is backward compatible with earlier versions of DOCSIS products.

DOCSIS 1.1 enables the existence of high-speed Internet service tiers, via techniques known as data fragmentation and concatenation. Those techniques allow cable providers to deliver high-speed Internet services simultaneously over the same plant with guaranteed quality-of-service (QoS). Equipment built to comply with the DOCSIS 1.1 specification becomes the foundation for an expanding list of advanced IP-based cable services offered by cable providers, including home networking through CableLabs’ CableHome® project, and packet telephony and multimedia services through CableLabs’ PacketCable™ project.

CableLabs® Certified™ or CableLabs Qualified means that the device has passed a series of tests for compliance with the indicated version of the specification and has thus demonstrated interoperable functionality with any other "CableLabs certified/qualified" device. Many of these devices provide other functions or are designed to comply with other specifications, in each case tailored by the manufacturer to meet the growing needs of consumers or cable operators in an evolving communication/entertainment sector. While CableLabs encourages such innovation and diversity, the phrase CableLabs certified/qualified should not be understood as an endorsement of these other attributes (or that the product is certified to other specifications or versions), which are solely the responsibility of the company making the additional claims.

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