Siemens selects Datum for synchronization of voice and data integrating synchronous optical network systems

Datum, Inc., (Nasdaq: DATM) a global supplier of carrier-class synchronization solutions, announced an agreement to provide the synchronization technology for the Optical Networks division of Siemens Information and Communications Networks (ICN).

Under this agreement, Siemens customers will benefit from Datum's synchronization equipment, including Cesium clocks, GPS clocks and Synchronization Supply Units. As a result, stable and reliable SONET/SDH backbone infrastructures are controlled under the Siemens Transport Network Management System (TNMS), negating the need for separate transmission and synchronization supplier management functions. This will also allow Siemens a faster time to market by focusing on the company's main product expertise.

Siemens Information and Communication Networks unifies voice and data into an integrated IP-based architecture enabling SONET/SDH-based transport networks for enterprises, carriers and service providers. The products that Datum will provide to Siemens include the SSU-2000e, OfficeTime-21 ETSI series, PRS-50 and RubiSource-2000 timing sources. These Rubidium, Cesium and GPS-based timing sources ensure precise edge, access and core wireless network synchronization.

About Datum Inc.:

Headquartered in Irvine, Calif., Datum designs, manufactures and markets advanced network synchronization, timing and frequency solutions for telecommunications, computer networks, satellite systems, and test and measurement applications. For more information, visit www.datum.com.

About Siemens:

Siemens Information and Communication Networks Group (ICN) is a provider of integrated voice and data networks for enterprises, carriers and service providers. For more information, visit www.ic.siemens.com.