PowerDsine Power over Ethernet Midspans Offer MGE End-to-End Back-up Power for Internet Protocol Phones, Wireless LAN Access Points and Network Security Cameras

Business Wire, March 1, 2005

FARMINGDALE, N.Y. & HOD HASHARON, Israel -- PowerDsine Ltd. (NASDAQ:PDSN), a Power over Ethernet (PoE) pioneer has been selected by MGE UPS Systems, a leading uninterruptible power supply (UPS) vendor, to incorporate PoE Midspans into MGE's end-to-end back-up solution for mission critical applications such as Voice over IP, Wireless LANs and network security cameras.

PoE is a technology provides the electrical power necessary for the operation of each end-device connected to the Ethernet network 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.

A UPS powering the network switches, when used in conjunction with a Midspan ensures the supply of electrical operating power to end devices connected to the network, even during power outages. The PowerDsine Midspan deployed with the MGE UPS, includes remote power management capabilities that monitor, configure and regulate the supply of power to end-devices based on parameters established by the customer. This feature, for example, can be set to shut down lower-priority network devices in an emergency, in order to conserve power and maintain the supply to critical VoIP phones.

"PowerDsine's Midspan solution used in conjunction with a UPS, addresses problems that can arise with critical applications such as VoIP, Wireless LAN Access Points (WLAN APs) and network security cameras during power failures," explains Igal Rotem, CEO of PowerDsine. "The use of a PoE Midspan together with a UPS provides a seamless service with close to no downtime in the event of a power failure."

IP phones backed up by a UPS system are easy to deploy, economical and reliable. "By adding Midspans to our portfolio, we can provide to our customers an equivalent level of availability of service from their VoIP architecture as they experience today with their traditional circuit switched system," confirms Patrick Brouhon, MGE's Enterprise Network Marketing Director.

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

About MGE UPS Systems

MGE UPS Systems is one of the world's leading manufacturers of global high availability power solutions for enterprise networks, telecoms, data (processing) centres, critical processes and public infrastructures.

MGE's total Quality Management and MGE PowerServices(TM) program enable MGE to provide its customers services of the highest level of quality for the whole lifetime of their installations.

With 37 subsidiaries and a presence in more than 150 countries, MGE UPS SYSTEMS meets the expectations of its customers and follows changes in their needs throughout the world.

Forward Looking Statements

Statements made in this press release that are not historical facts, including statements regarding our expectations of future events or our future financial performance, are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions about PowerDsine and the matters covered in this release. You should not place undue reliance on these statements. Actual events or results may differ materially. Many factors may cause our actual results to differ materially from any forward looking statement, including acceptance of new products, costs relating to such products and other factors detailed in PowerDsine's filings with the Securities and Exchange Commission, including its Registration Statement on Form F-1. The forward-looking statements are made as of this date and PowerDsine does not undertake any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

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