Symmetricom Announces First DOCSIS Timing Interface (DTI) Server Qualified by CableLabs

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TimeCreator 1000 CableLabs DTI compliant server delivers precise time and frequency network synchronization necessary to support new broadband cable services.

Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency products and services, today announced TimeCreator™ 1000, the first DOCSIS® Timing Interface (DTI) Server. TimeCreator 1000 is a network time synchronization system specifically designed for cable television communications networks. Qualified by Cable Television Laboratories, Inc. (CableLabs®), a nonprofit research and development consortium dedicated to helping cable operator members integrate new cable telecommunications technologies into their business objectives, TimeCreator enables the most reliable and precise time and frequency network synchronization necessary to support new broadband cable services.

“Cable operators are in a market battle to innovate their service platform for future success and are rapidly looking to satisfy consumer demand for video services, voice and high-speed, high-bandwidth networks,” commented Gurdip Jande, senior vice president of marketing at Symmetricom. “Our new TimeCreator 1000 CableLabs qualified DTI Server ensures the most reliable network synchronization to support these new cable services.”

Working with Symmetricom, the cable industry developed the new DTI synchronization protocol to ensure precise time and frequency synchronization for cable networks. CableLabs first began testing TimeCreator in June. The certification process at CableLabs tests the performance and compliance to the DTI specification. This ensures that the TimeCreator 1000 meets the specification requirements and is interoperable with other devices in the network.

”We greatly appreciate Symmetricom’s participation in the M-CMTS initiative. They were valuable contributors to the M-CMTS specification drafting process. The qualification of their TimeCreator 1000 DOCSIS Timing Interface Server demonstrates their strong support of the Cable industry’s initiatives,” said Michelle Kuska, vice president of broadband access at CableLabs.

TimeCreator enables cable operators to deploy new services with flexibility to balance economics, scalability, functionality and carrier class reliability. With optional GPS traceability, redundant clock cards, redundant power supplies and an NTP Server option, TimeCreator 1000 is a fundamental part of a cable operators headened or hub network deploying M-CMTS, DOCSIS 3.0 or Business Services over DOCSIS. The TimeCreator’s integrated DOCSIS Timing Interface Server capabilities ensures that the M-CMTS core, Edge QAM and upstream are synchronized to nanosecond levels to support the existing DOCSIS requirements for frequency and timestamps that existed in traditional CMTS.

In addition to being CableLabs DTI qualified, TimeCreator provides:

  •     Flexibility in a 1RU chassis – 10 standard DTI client connections as well as two dual mode ports that can be used to connect DTI clients or to synchronize the TimeCreator in a slave server mode.
  •     Expandability – TimeCreator can be configured as a root or slave server to support over 100 DTI clients in a headend or hub and supports not only the standard DTI, but has a GPS as well as NTP server output option.
  •     High Reliability – Supports carrier class reliability with full redundant clock cards and power supplies to ensure that the critical synchronization of the network is maintained during equipment failure or reconfiguration.

For more information, click here.

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

DOCSIS and CableLabs are trademarks of Cable Television Laboratories, Inc.


Raychel Marcotte                            



Jeanne Hopkins



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