The results of pilot operation of the subsystem of universal time provision for military consumers based on the precise time servers Microsemi Time Provider 4100

Abstract

As part of the operation of the military segment of the Service of Universal Time and Reference Frequencies, the results of the pilot operation of the subsystem for providing universal time for military consumers are presented, which is built on the basis of the national measurement standard of time and frequency, the output standard of the Armed Forces of Ukraine of time and frequency using precise time servers (Microsemi Time Provider 4100) and fiber-optic technologies for transmitting time synchronization signals via PTP and NTP protocols over packet data networks – Ethernet.Studies have confirmed the possibility of transmitting reference signals of time and frequency synchronization using modern digital and fiber-optic technologies from the national measurement standard of time and frequency to the reference standard of the units of time and frequency of the Armed Forces of Ukraine with the root mean square deviation (RMS) of error not exceeding 30 ns. RMS from the mean value of the reference signal of frequency 1 РРS of the slave server of the communication center (Kyiv) when transmitting reference signals for synchronizing time from the reference standard of the units of time and frequency of the Armed Forces of Ukraine (Kharkiv) in the observation interval of 30 days (with periodic daily switching on the servers located in the ICEC of the Armed Forces of Ukraine) did not exceed 100 ns. With a continuous operating mode (2 days), the RMS was not more than 65 ns.The research results make it possible to formulate basic requirements for the composition, technical characteristics, functional capabilities and operating modes of the equipment of the military consumer time synchronization system using the PTP and NTP protocols over packet data networks – Ethernet in order to ensure its reliability and accuracy.