PowerDsine Receives Spare Pair Powering Patent in China

11/1/2004 - PowerDsineTM Ltd. (NASDAQ: PDSN), a pioneer in Power over Ethernet (PoE) solutions, announced it has been awarded a "spare pair powering" patent in China that further extends PowerDsine's patent portfolio in PoE technology.

The patent #ZL 99815577.2, issued under certificate 161478 in China, pertains to PowerDsine's PoE stand- alone midspan products that connect to an Ethernet switch to PoE-enable an enterprise network. The PoE midspan is the first system on the market that supplies reliable, uninterrupted power to IP phones, wireless LAN access points, network cameras, and other devices using existing Ethernet cabling infrastructure. Additionally, when used in conjunction with a centralized Uninterrupted Power Supply (UPS), the PoE midspan ensures continuous operation, even during power failures, to increase the overall performance and reliability of the network.

"This patent from China reinforces PowerDsine's pioneering efforts in Power over Ethernet technology. We believe that there is tremendous growth potential for PoE in the Chinese market and receipt of this patent will enable PowerDsine to further pursue these potential opportunities. We have engaged a high- profile vendor to sell and market our midspan products in the Chinese market and are currently pursuing additional vendor relationships in an effort to maximize PowerDsine's reach within China," said Igal Rotem, CEO of PowerDsine.

The Chinese patent for "spare pair powering" will add another block to PowerDsine's history of PoE innovation. In October 2002, the United States Patent and Trademark Office awarded patent #6,473,608 that pertains to PowerDsine's structured cabling system invention. The U.S. patent, much like the Chinese patent, addresses the process that detects all "power enabled" elements in the Ethernet LAN so that power can be distributed safely via data Ethernet cabling infrastructure to those elements without affecting legacy devices.

About Power-over-Ethernet Technology
PoE is a technology for wired Ethernet, the most widely installed local area network technology in use today. PoE allows the electrical power necessary for the operation of each end-device, to be carried by data cables rather than by separate power cords. It minimizes the number of wires that must be used in order to install the network, resulting in lower cost, less downtime, easier maintenance and greater installation flexibility.

About PowerDsine
PowerDsineTM (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.

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