PowerDsine Files Patent Infringement Suit Against Red Hawk

    Business Editors/High-Tech Editors

    FARMINGDALE, N.Y. & HOD HASHARON, Israel--(BUSINESS WIRE)--April 29, 2005--PowerDsine Ltd. (Nasdaq:PDSN), a pioneer in Power over Ethernet (PoE) solutions, announced today that it has filed a suit against Belden CDT Inc. and its subsidiary Red Hawk Network Essentials, Inc.
    PowerDsine commenced an action before the Federal District Court for the Eastern District of New York alleging that certain products manufactured and sold by Belden CDT and Red Hawk infringe PowerDsine's U.S. Patent No. 6,473,608 (the '608 Patent).
    The United States Patent and Trademark Office issued the '608 Patent, entitled "Structure Cabling System," to PowerDsine on October 29, 2002. The '608 Patent covers certain Power over Ethernet (PoE) products that are compliant with the IEEE 802.3af standard.
    Simon Kahn, PowerDsine's Director of Intellectual Property stated, "PowerDsine resorts to this type of action only once it is convinced that its efforts to reach an amicable resolution of the matter have failed."

    About PowerDsine

    PowerDsine(TM) (NASDAQ:PDSN) designs, develops and supplies integrated circuits, modules and systems that enable the implementation of Power over Ethernet in local area networks, providing the capability to deliver and manage electrical power over data network cables. PowerDsine offers integrated products and system solutions to communications equipment manufacturers in the telecom and datacom industries who incorporate them into, or bundle them with, their products. PowerDsine is a founding member of the IEEE 802.3af Task Force. For more information, please visit http://www.powerdsine.com

    PowerDsine is a registered trademark of PowerDsine Ltd. All other trade names are the property of their respective owners.

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CONTACT: PowerDsine North America by Merritt Group John Conrad, 703-390-1538 conrad@merrittgrp.com

KEYWORD: NEW YORK ISRAEL INTERNATIONAL AFRICA/MIDDLE EAST INDUSTRY KEYWORD: HARDWARE LEGAL/LAW NETWORKING ENERGY SOURCE: PowerDsine North America

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