XLi IEEE 1588 Grandmaster

Having the XLi Grandmaster operate as a slave is extremely useful for network time transfer accuracy measurements involving a 1588 slave separated from the XLi Grandmaster by network elements or topology. The remote slave 1PPS is compared to the remote GPS receiver 1PPS in the XLi Grandmaster using the standard Time Interval function. This enables accurate measurements to be made of the network between the GPS referenced 1588 Grandmaster and the remote slave. Operating as a 1588 slave also means accurate time can be transferred over Ethernet to the XLi Grandmaster and, for example, output as IRIG B time code.

The XLi Grandmaster can also be configured with two 1588 ports. These ports can operate as two independently configured Grandmasters or as a Grandmaster and a slave. The master and slave configuration is an excellent 1588 network element or topology measurement solution. Synchronize the slave to the master with network elements or topology in-between, then measure the slave 1PPS to the master using the standard Time Interval function in the Grandmaster. This is very useful in characterizing the time degradation effects of delay and jitter introduced by any network element or topology before deployment.

Optional TimeMonitor Analyzer software collects and analyzes Time Interval data from the XLi Grandmaster. Statistics, histograms, mean time interval error charts, and much more are quickly and easily computed on small to extremely large datasets.