Facebook company Posted Earnings related to the creation of PCIE fees for Current time synchronization server organization, including the implementation of miniature Atomic clock and GNSS receiver. Specifications, Schemes, BOM, GERBER, PCB and CAD files required for the production of the board, Published on GitHub. The board is originally designed as a modular device that allows the use of various finished atomic clock chips and GNSS modules, such as SA5X, MRO-50, SA.45S and U-BLOX RCB-F9T. Production of finished boards based on prepared specifications intends to start OROLIA.
Board Time Card develops as part of a more global project Time Appliance aimed at providing Components for the creation of the primary (Time Master) of the exact time servers ( Open Time Server , which can be deployed in their infrastructure and be used, for example, to organize time synchronization in data centers. Using a separate server allows you to independently depend on external networks for synchronization of exact time, and the presence of built-in atomic clocks provide a high level of autonomy in the event of data acquisition failures from satellite systems (for example, due to weather conditions or attacks).
Project feature is that to build a primary accurate server server, you can use a regular server based on the X86 architecture, which includes a typical network card and Time Card. In such a server, information about the exact time is taken from satellites through GNSS, and atomic clocks act as a highly stable oscillator, which allows maintaining a high level of accuracy in case of a failure to obtain information via GNSS. Possible deviation from the exact time in case of the impossibility of obtaining data through the GNSS in the proposed board is estimated at about 300 nanoseconds per day.
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