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Grandmaster clock delivers precise time over Ethernet

Posted: 29 Sep 2009 ?? ?Print Version ?Bookmark and Share

Keywords:grandmaster clock? Ethernet? GPS?

Symmetricom has released the XLi IEEE 1588 PTP v2 Grandmaster, a GPS referenced grandmaster clock and IEEE 1588 measurement and validation tool supporting Precision Time Protocol (PTP) Version 2.

Delivering ultra-precise time and frequency synchronization over Ethernet networks, the XLi IEEE 1588 Grandmaster contains a dedicated 1588 time stamp processor and functions as an IEEE 1588 slave with the ability to measure PTP client performance by assessing time transfer accuracy across a network.

According to Ron Holm, product marketing manager at Symmetricom, it operates at 100 Base-T line speed with deep time stamp packet buffers, and supports over 50 slave delay requests per second.

Ideal for measurement purposes, the grandmaster also operates as a 1588 slave, extremely useful for network time transfer accuracy measurement involving a 1588 slave separated from the XLi Grandmaster by network elements or topology.

The XLi Grandmaster can be configured with two 1588 ports, operating as two independently configured grandmasters or as a grandmaster and slave. Optional Symmetricom TimeMonitor software collects and analyzes time interval data from the XLi Grandmaster.

The XLi IEEE 1588 PTP v2 Grandmaster will be available in December 2009.

- Bernard Cole
Embedded.com

For application notes on clocks click here.





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