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time server

In many communication and production processes, time accuracy and synchronization are crucial for the functionality of the systems, for example in communication and information technology, data transmission and network technology, in process sequences in production technology, satellite technology or the synchronization of clocks. Time servers are responsible for the distribution of high-precision time signals

. Time servers can be dedicated or part of another server, they can be public or proprietary. As network components, they transmit high-precision time signals and time stamps to synchronize networks, computers

, and system components with time-accurate synchronization signals.

Time Server with Clients and Time Server Protocol

Time Server with Clients and Time Server Protocol

Time servers are distribution servers for high-precision time references, which they receive from atomic frequency standards, from the GPS system or from the time reference signal of the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig via radio transmission. The PTB time signal is transmitted via the long-wave transmitter DCF77

. Time stamps from other time servers can also be used as time reference.

NTP time server for GPS signals, Photo: Meinberg

NTP time server for GPS signals, Photo: Meinberg

As far as the distribution of time signals and time stamps is concerned, this is done via time server protocols such as the Network Time Protocol (NTP), the simpler version, the Simple Network Time Protocol (SNTP) or the highly precise Precision Time Protocol (PTP).

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Englisch: time server
Updated at: 09.05.2014
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