Time and Frequency dissemination with the best accuracy and stability and extreme resilience to external perturbations.
A time signal referenced to INRIM is disseminated using optical fibers. Different architectures and different techniques are available to meet user needs. An accuracy beyond the GPS level can be achieved through open source techniques (White Rabbit) and the more innovative Modulated Coherent Time (MCT).
Advanced Timing provision with best accuracy and stability
Superior resilience to interference and attacks to ensure safety requirements and integrity.
The reference time signal generated at INRIM is encoded by modulating the amplitude of a laser radiation, then routed on a commercial optical fiber network. The user is equipped with a receiver that demodulates the incoming light generating a set of useful reference signals for time stamping and frequency reference (1PPS and 10 MHz). The accuracy of the time reference is better than 1 ns with respect to the INRIM timescale UTC(IT). A set of Key Performance Indicators monitors the system and the performances at the user-end.