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CableLabs Certifies Two DOCSIS 2.0 Modems.


LOUISVILLE, Colo. -- CableLabs(R) announced today that it has awarded DOCSIS (Data Over Cable Service Interface Specification) A cable modem standard from the CableLabs research consortium (www.cablelabs.com), which provides equipment certification for interoperability. (R) 2.0 and DOCSIS 1.1 certified status to cable modems cable modem

Modem used to convert analog data signals to digital form and vise versa, for transmission or receipt over cable television lines, especially for connecting to the Internet.
 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 (communications, networking) Data Over Cable Service Interface Specification - (DOCSIS) ITU-approved interface requirements for cable modems involved in high-speed data distribution over a cable television network. ) cable modems and cable modem termination systems A cable modem termination system or CMTS is equipment typically found in a cable company's headend, or at cable company hubsite and is used to provide high speed data services, such as cable internet or Voice over IP, to cable subscribers.  that have been certified or qualified, respectively.

DOCSIS 2.0 adds advanced digital modulation The altering of a carrier by a digital signal. See modulation and carrier.  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 Refers to hardware or software that is compatible with earlier versions of the product. Also called "downward compatible." Contrast with forward compatible.

backward compatible - backward compatibility
 with earlier versions of DOCSIS products.

DOCSIS 1.1 enables the existence of high-speed Internet See broadband.  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(R) project, and packet telephony Synonymous with IP telephony and voice over IP (VoIP), in which a digital voice stream is broken up into small chunks (packets) and transmitted over a packet-switched network. See IP telephony and packet switching.  and multimedia services through CableLabs' PacketCable(TM) project.

CableLabs(R) Certified(TM) 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.

Founded in 1988 by members of the cable television industry, Cable Television Laboratories is a non-profit research and development consortium that is dedicated to pursuing new cable telecommunications technologies and to helping its cable operator members integrate those advancements into their business objectives. Cable operators from around the world are members. CableLabs maintains web sites at www.cablelabs.com; www.packetcable.com; www.cablemodem.com; www.cablenet.org; and www.opencable.com.

CableLabs(R), DOCSIS(R), CableHome(R), PacketCable(TM), OpenCable(TM), OCAP OCAP Ontario Coalition Against Poverty (Canada)
OCAP Open Cable Application Platform (middleware software specification)
OCAP Out of Control Action Plan
(TM), CableCARD(TM), Go2Broadband(SM) and CableNET(TM) are marks of Cable Television Laboratories, Inc. All other marks are the property of their respective owners.
COPYRIGHT 2004 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2004, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Aug 16, 2004
Words:464
Previous Article:CableLabs Announces Four PacketCable Certifications.
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