Vitesse Enhances Fiber Media Support in Dual Media Gigabit Ethernet Transceiver Roadmap

CAMARILLO, Calif.—(BUSINESS WIRE)—March 13, 2007— Vitesse Semiconductor Corporation (Pink Sheets:VTSS), a leader in Gigabit Ethernet IC solutions, today announced it will include Fast Fiber (100BASE-FX or 100FX) support in all future multi-port, dual media, Gigabit Ethernet transceivers (PHYs). The native support of both 100FX and 1000BASE-X in future dual media PHYs reduces the implementation and management costs of networking installations. The availability of 100FX support begins with Vitesse's new Octal PHY, the VSC8658, which is now in production and offers a highly integrated and cost-effective solution for 10/100/1000BASE-T, 100BASE-FX and 1000BASE-X applications.

Allowing the flexible selection of a media interface in Ethernet applications enables customers to deploy switching in various environments. While copper Gigabit Ethernet transceivers provide cost-effective high-speed uplink and cascading capabilities up to a 100m reach distance, Ethernet ports supporting pluggable optical Gigabit Ethernet interfaces allow network extensions over large distances that can exceed 80 kilometers on a singlemode fiber-optic link. The SerDes interface resources on every port of Vitesse's new dual media PHYs will enable 802.3u compliant 100FX communications on ordinary multimode fiber-optic (MMF) link spans up to 2 kilometers long. Furthermore, the flexible selection of media interfaces enables the connection of existing equipment, such as 100FX print servers, and eliminates the need for intern media converters, such as 10/100TX to 100FX converters.

"Vitesse is focused on providing IC solutions that accelerate the transition from 10/100 to Gigabit Ethernet and, at the same time, reduce the implementation and management costs of networking installations by supporting backwards compatibility. With the introduction of the VSC8658, we take total savings a step further by reducing the costs of ownership through our technology expertise in cable diagnostics, integration and low power dissipation," said Sean Michaud, director of marketing at Vitesse.

The VSC8658 leverages the industry-leading feature set of the VSC8558 device, which eliminated 500 components and saved 12 square inches of board space in 48-port systems by integrating MAC and media-side terminations. Other distinguishing features of this highly-integrated, feature-rich, Enterprise PHY include:

-- Simplifies networking installations by offering Auto-Media Sense (AMS) and auto crossover handling. The AMS feature intelligently detects and configures itself to support copper or fiber media on a per port basis

-- Auto MDI-II/MDI-X detection on each port automatically detects and corrects for crossover connection. The automated crossover handling allows direct switch-to-switch or switch-to-hub connections during network installation without the need for crossover cables or patches

-- Supports Vitesse's VeriPHY(TM) Cable Diagnostics that prevents manufacturing fallout and erroneous equipment return due to defective or improperly installed cables

-- Consumes less than 500mW of power per port when operating in its lowest power mode.

About Vitesse

Vitesse designs, develops and markets a diverse portfolio of high-performance, cost-competitive semiconductor solutions for communications and storage networks worldwide. Engineering excellence and dedicated customer service distinguish Vitesse as an industry leader in Gigabit Ethernet LAN, Ethernet-over-SONET, Fibre Channel, Serial Attached SCSI, Optical Transport, and other applications. Vitesse innovation empowers customers to deliver superior products for Enterprise, Access, Metro, and Core applications. Additional company and product information is available at

Vitesse is a registered trademark and VerifPHY is a trademark in the United States and/or other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders.

Safe Harbor

Statements made in this release that are not historical facts are "forward-looking" statements (as defined in the Private Securities Litigation Reform Act of 1995) that involve risks and uncertainties and are subject to change at any time. These forward-looking statements may include, but are not limited to, statements containing words such as "anticipate," "believe," "plan," "estimate," "expect," "hope," "intend," and similar expressions. Factors that could cause actual results to differ are identified in the public filings made by Vitesse with the Securities and Exchange Commission and include the fact that we have disclosed that you should not rely upon our published financial statements and the fact that we have not filed all of our reports required by the Securities Exchange Act of 1934. More information on factors that could affect our business and financial results are included in our public filings made with the Securities and Exchange Commission, which are available on the web site of the Securities and Exchange Commission,

The forward-looking statements involve known and unknown risks, uncertainties and other factors that are, in some cases, beyond our control. We caution investors that any forward-looking statements made by us are not guarantees of future performance. We disclaim any obligation to update any such factors or to announce publicly the results of any revisions to any of the forward-looking statements to reflect future events or developments.


Ronda Grech, +1-805-388-3700
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