MRV Communications™, Inc. (OTC Pink Sheets: MRVC) (“MRV” or the “Company”), a leading provider of optical communications network infrastructure equipment and integration and managed services, and Symmetricom®, Inc. (NASDAQ:SYMM), a world-wide leader in precision time and frequency technologies, today announced MRV’s participation in Symmetricom’s SyncWorld™ Ecosystem Program, to support interoperability and ensure the deployment of MRV’s OptiSwitch ® 900 Carrier Ethernet Access Platform, a proven mobile backhaul solution.

In order to meet new synchronization and timing requirements that support the transition to packetized backhaul networks and 4G/LTE mobile platforms, Symmetricom established the SyncWorld™ Ecosystem Program to enable interoperability and cooperation among vendors that will deliver on service providers’ advanced networking requirements.

Today’s mobile backhaul networks are transitioning from TDM to packet-based services because TDM expansion is expensive to implement and lacks the scalability required to meet mobile traffic growth requirements. As mobile backhaul networks are upgraded to Ethernet, the base stations become isolated from the synchronization chain that was carried over TDM infrastructure.

To solve this problem, together MRV and Symmetricom have completed comprehensive timing and synchronization interoperability tests during various industry events which validated deployment scenarios, such as synchronization for LTE mobile backhaul. These tests leveraged MRV’s OptiSwitch 900 Carrier Ethernet Access Platform and Symmetricom’s TimeProvider® 5000 Grand Master clock, ensuring precise synchronization and timing over the Ethernet and IP packet-switched mobile networks.

“We are excited to have MRV join the SyncWorld Ecosystem Program and support interoperability among all the elements of the mobile value chain,” said Manish Gupta, Vice President Marketing for Symmetricom. “Deployments of proven solutions are essential to meet service provider demand for the accelerated introduction of next-generation services.”

“Today timing and synchronization are critical as mobile operators migrate to IP/Ethernet backhaul. The joint MRV-Symmetricom solution ensures the deployment of tested and proven mobile Ethernet backhaul solutions with precise timing and synchronization,” said Zeev Draer, Vice President Strategic Marketing for MRV’s Optical Communications Systems™ (OCS) division. “Our collaboration with Symmetricom enriches our solutions portfolio and allows us to combine a mix of superior timing and synchronization technologies with our field-proven Carrier Ethernet and MPLS access technology in order to deliver a versatile backhaul solution.”

About MRV Communications, Inc.

MRV Communications, Inc. is a leading global provider of carrier Ethernet, WDM optical transport, infrastructure management equipment and solutions, as well as network integration and managed services. MRV’s solutions enable the delivery and provisioning of next-generation optical transport and carrier Ethernet services over any fiber infrastructure. MRV provides equipment and services worldwide to telecommunications service providers, enterprises, and governments, enabling network evolution and increasing efficiency, while reducing complexity and costs. Through its subsidiaries, MRV operates R&D centers in North America and Europe, along with support centers and sales offices around the world. For more information about MRV, visit:

About OptiSwitch®

MRV's OptiSwitch® family is an award-winning line of compact carrier Ethernet switching platforms that range from the OptiSwitch 9000 metro Ethernet aggregation products to the OS900 demarcation series. OptiSwitch products offer service providers a full suite of carrier-grade Ethernet services along with high-availability, enhanced quality of service, security, TDM circuit emulation and Ethernet operation, administration and maintenance (OAM) support. This full suite of OAM tools creates flexible service awareness and rigid SLAs. OptiSwitch products meet IEEE, ITU, IETF standards and MEF specifications, offering complete control to simplify deployment and management while maintaining full interoperability and visibility into customer and provider networks.

About Symmetricom, Inc.

Symmetricom (NASDAQ:SYMM), a world leader in precise time solutions, sets the world's standard for time. The company generates, distributes and applies precise time for the communications, aerospace/defense, IT infrastructure and metrology industries. Symmetricom's customers, from communications service providers and network equipment manufacturers to governments and their suppliers worldwide, are able to build more reliable networks and systems by using the company's advanced timing technologies, atomic clocks, services and solutions. All products support today's precise timing standards, including GPS-based timing, IEEE 1588 (PTP), Network Time Protocol (NTP), Synchronous Ethernet and DOCSIS® timing. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit:

For more information on Symmetricom’s SyncWorld™ Ecosystem Program, visit:

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