MRV LX 7304 INTEGRATES HIGH DENSITY SENSOR MANAGEMENT AND REMOTE MANAGEMENT CAPABILITIES INTO SINGLE PLATFORM

June 19th, 2007

MANAGES UP TO 128 ALARM POINTS WITH REMOTE DEVICE MANAGEMENT
AND POWER CONTROL

CHATSWORTH, CA ? June 19, 2007 ? MRV COMMUNICATIONS, INC. (Nasdaq: MRVC), a leading provider of products and services for out-of-band networking, WDM and optical transport, metro Ethernet, fiber optic components, 10GE and other service aware networking products, today announced the
LX 7304 Sensor Manager platform, which further expands MRV?s out-of-band networking solutions for telecommunication service providers and carriers. The LX 7304 will be first demonstrated at the NXTcomm 2007 tradeshow (June 19-21 in Chicago) in booth 7824.

The LX 7304 Sensor Manager is a modular, four-slot chassis ideally suited for wireless network sites, remote telecom locations, manufacturing facilities and data centers where space, power and remote management are key issues. When deployed at unstaffed facilities that require lights-out management, the LX 7304 can be used to alert technical staff to everything from a door opening, to power outages, to fuel levels in a back-up power generator and can manage up to 128 alarm ports supporting both wet and dry contacts, analog sensors, and control outputs.

The device provides access to locally attached devices via RS-232, Ethernet andor V.92 modem connections. In addition to the unit?s sensor and alarm management capabilities, the LX 7304 provides remote network connectivity to serially attached devices such as switches, routers and servers. The device also provides intelligent power management to monitor power utilization, enabledisable outlets, or to reboot remote devices. Leveraging the industry leading software features of the LX Series console servers, a number of security mechanisms including RADIUS, SecurID, TACACS+, SSHv2, SNMPv3, and SSL are supported ensuring secure communications from any location.

?This new member of the LX product family provides a great value-add for our sensor customers, as it combines the functionality of our highly successful LX Series console servers with the innovative trigger-and-action capabilities of our sensor management solutions in a single system,? said Noam Lotan, President and CEO of MRV Communications. ?This versatile device is a highly cost-effective solution and a further demonstration of MRV?s commitment to comprehensive out-of-band networking solutions.?

Utilizing MRV?s unique Trigger/Action capability, the LX 7304 is able to notify network administrators via cell phone (SMS), pager and/or SNMP traps. In addition to notifications, automated actions can be configured to activate devices such as relays, generators, lights, sirens, etc., in response to any triggering event from an attached sensor device. These actions can be used to enable additional heatingcooling, surveillance cameras, backup generators and/or other alarm systems.

The LX 7304 is available with redundant AC or DC power. The supported option modules provide 32 ports of sensor inputs, eight ports of control output, or eight ports of analog loop connectivity. NEBS Level 3 Certification and RoHS compliance, along with a wide range of international certifications, allow the LX 7304 to be deployed in a wide range of applications.

About the LX Series
The LX Series of out-of-band networking products provides the redundancy and security features to deploy a complete, end-to-end solution in which network and system administrators can proactively respond to all remote management, configuration and data acquisition needs as though they were physically present. The flagship LX 4000T Series console servers are available in 8, 16, 32 and 48_port models. In addition to remotely accessible console servers, the solution includes intelligent power sources and sensor networking capabilities.

Pricing and Availability
The LX 7304 Sensor Managers are available immediately at prices starting at $3,745. Customers interested in LX Series product and their capabilities can find more information on the MRV website at www.mrv.com.

About MRV Communications, Inc.
MRV Communications, Inc. (?MRV?) is a leading provider of network equipment and services, and optical components. MRV?s networking business provides equipment used by commercial customers, governments and telecommunications service providers, and includes switches, routers, physical layer products and out-of-band management products as well as specialized networking products for aerospace, defense and other applications including voice and cellular communication. MRV?s optical components business provides optical communications components for metropolitan, access and Fiber-to-the-Premises applications, through its wholly owned subsidiary LuminentOIC, Inc. MRV markets and sells its products worldwide through a variety of channels, including a dedicated direct sales force, manufacturers' representatives, value-added-resellers, distributors and systems integrators. MRV also has operations in Europe that provide network system design, integration and distribution services that include products manufactured by third-party vendors, as well as internally developed and manufactured products. Publicly traded since 1992, MRV is listed on the NASDAQ Global Market under the symbol MRVC. For more information about MRV and its products, please call (818) 773-0900 or visit our websites at www.mrv.com and www.luminentoic.com.

Media Relations
MRV Communications, Inc.
David Rodewald
(805) 494-9508
pr@mrv.com