the slave device, which needs to follow up the master clock, by an adjustable VCXO. So it is possible to fine tune the frequency of the distributed clocks, and reduce the drift of clock, which shows great benefit for the clock synchronization. A test measurement shows the synchronization of distribute clocks can be better than 10 ns using this method, which is more accurate than the method realized by software.РKey words PTP, Synchronization, Frequency synchronization, VCXO, work, Distributed data acquisitionРCLC TN393Рfile:///D|/我的资料/Desktop/新建文本文档.txtРAppliance Error (configuration_error)РYour request could not be processed because of a configuration error: "Could not connect to LDAP server."РFor assistance, contact work support team.Рfile:///D|/我的资料/Desktop/新建文本文档.txt2012-07-12 20:42:52