Symmetricom Announces Invited Speaker for ISPCS 2008 and IEEE 1588 Version 2 Precise Time Protocol (PTP) Demonstrations for Plug-Fest : Symmetricom's TimeProvider™ 5000 and XLi Grand Master Clock Highlighted at ISPCS 2008 – September 22-26, 2008 – Ann Harbor, MI

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Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency technologies that accelerate the deployment and enable the management of next generation networks, today announced the company is demonstrating its XLi Grand Master Clock and its TimeProvider™ 5000 carrier-class IEEE 1588v2 grand master clock during ISPCS 2008’s Plug-Fest, Monday, September 22 – Tuesday, September 23, 2008 in Ann Arbor, MI. Vendors participating in Plug-Fest can test and validate their IEEE 1588 Precision Time Protocol (PTP) version 2.0 products using Symmetricom products that will serve as the PTP grand master or slave clock. Greg Dowd, staff scientist is also presenting, “Characterizing Network Synchronization Potential with the minTDEV Statistic,” on Friday, September 26, 2008 during the conference’s symposium.

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Characterizing Network Synchronization Potential with the minTDEV Statistic


  Demonstrations and interoperability testing of Symmetricom's XLi Grand Master Clock and TimeProvider(TM) 5000, Symmetricom's carrier-class IEEE 1588v2 grand master clock during ISPCS's Plug-Fest on Monday, September 22 - Tuesday, September 23, 2008   Greg Dowd, staff scientist, presenting, "Characterizing Network Synchronization Potential with the minTDEV Statistic," on Friday, September 26, 2008, 8:45 a.m. EDT   WHERE:

University of Michigan, Rackham Building, 915 E. Washington St., Ann Arbor, MI The XLi Grand Master Clock is an ultra precise PTP clock supporting the latest IEEE 1588 Version 2.0 specifications as defined by the standards body. The solution also incorporates peer to peer time delay measurements to facilitate instantaneous calibration of network delays targeted at the industrial automation and power utility markets. TimeProvider 5000 is a "purpose built" IEEE 1588 Version 2 carrier-class grandmaster clock designed to meet the most stringent timing and synchronization requirements of next generation network applications including Ethernet backhaul, circuit emulation and passive optical networks (PON).

The aim of the symposium is to provide a forum for researchers and practitioners from industry, academia, and government involved in the area of Precision Clock Synchronization using IEEE 1588 or similar techniques and protocols. ISPCS (International IEEE Symposium of Precision Clock Synchronization for Measurement, Control and Communication) is sponsored by IEEE Instrumentation and Measurement Society.

For more information on ISPCS 2008, visit:

About Symmetricom, Inc.

As a worldwide leader in precise time and frequency products and services, Symmetricom provides "Perfect Timing" to customers around the world. Since 1985, the company's solutions have helped define the world's time and frequency standards, delivering precision, reliability and efficiency to wireline and wireless networks, instrumentation and testing applications and network time management. Deployed in more than 90 countries, the company's synchronization solutions include primary reference sources, building integrated timing supplies (BITS), GPS timing receivers, time and frequency distribution systems, network time servers and ruggedized oscillators. Symmetricom also incorporates technologies including Universal Timing Interface (UTI), Network Time Protocol (NTP), Precision Time Protocol (IEEE 1588), and others supporting the world's migration to Next Generation Networks (NGN). Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit

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Raychel Marcotte
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