Expected next investor conference call information:
Conference Call Date: 11/9/2009
Conference Call Time (ET): 5:00 PM
Conference Call URL: http://ir.mrv.com

Light Reading's Ethernet Expo 2009 will be held Nov. 3-4 at The Hilton New York in New York City. Now in its ninth year, this year's event will bring together experts from the service provider, supplier and analyst communities to explore the hottest trends in Ethernet technology. The conference will feature informative presentations, keynotes and panel discussions about all aspects of the growing and evolving Ethernet market. MRV will be exhibiting in booth #120.

"Carrier Ethernet is one of the fastest moving segments in the telecommunications industry today and MRV is paving the way for service providers with its innovative optical networking solutions," said Noam Lotan, chief executive officer of MRV Communications. "Brandon is an expert in optical technologies and his deep understanding of this market allow him to bring a valuable perspective to this panel discussion."

As CTO, Optical Networks, Pemberton is responsible for shaping MRV's product portfolio and go-to-market strategy to ensure MRV Communications continues to lead the market in innovation of optical transport and Carrier Ethernet solutions. Joining the company in 2005 as a Systems Engineer, he is an expert in the telecommunications industry, with experience in WDM, Sonet, fiber optics, transport, and Ethernet. He has held other positions within the company, including Senior Director of Market Development, Regional Director of Sales, and Director of Business Development. Prior to joining MRV, Brandon served in several senior engineering positions at AboveNet, TelCove, and MCI/Worldcom. He also served in the U.S. Marine Corps in the communications and intelligence sector.

About MRV Communications, Inc.

MRV Communications, Inc. is a leading provider of packet switching, packet optical (P-OTS), physical layer and out-of-band networking equipment, services and optical components for high-speed carrier and enterprise networks and specialized aerospace, defense and other communications networks. Through its wholly owned SourcePhotonics, Inc. subsidiary, the company provides optical communications components for access and fiber-to-the-premises applications. MRV markets and sells its products worldwide, with operations in Europe that provide network system design, integration and distribution. For more information please call (978) 431-5011 or visit our websites at www.mrv.com and www.sourcephotonics.com.

SOURCE: MRV Communications, Inc.

MRV Communications, Inc. 
David Rodewald, 805-494-9508 
pr@mrv.com

About MRV Communications, Inc.

MRV Communications, Inc. is a leading networking company with a full line of packet-optical transport ("POTS"), carrier Ethernet, 40G and out-of-band networking equipment, services and optical components for high-speed carrier and enterprise networks and specialized aerospace, defense and other communications networks. MRV's networking business provides equipment for commercial customers, governments and telecommunications service providers. MRV markets and sells its products worldwide, with operations in Europe that provide network system design, integration and distribution. The Company's optical components business which provides optical communications components for access and Fiber-to-the-Premises applications operates under the Source Photonics brand. For more information about MRV and its products, please call (818) 773-0900 or visit www.mrv.com and www.sourcephotonics.com.

SOURCE: MRV Communications, Inc.

MRV Communications, Inc. 
Investor Relations, 818-886-MRVC (6782) 
ir@mrv.com 
or 
The Blueshirt Group for MRV 
Maria Riley, 415-217-2631 
maria@blueshirtgroup.com

Expected next investor conference call information:
Conference Call Date: 11/9/2009
Conference Call Time (ET): 5:00 PM
Conference Call URL: http://ir.mrv.com