TimeSource Enhanced PRTC (ePRTC) Safeguards Against GNSS Vulnerabilities
TimeSource Enhanced PRTC
Massive deployment of GNSS as a timing source for synchronizing wired and wireless telecommunications networks has created security risks to a point where governments, major telecommunications/mobile operators and enterprises are now urgently looking to protect their networks against both regional GNSS issues as well as the potential of a global GNSS outage.
Microsemi’s new TimeSource Enhanced PRTC (ePRTC) is a new system enabling telecommunications and mobile operators to meet the new International Telecommunication Union (ITU) G.8272.1 standard, while safeguarding against serious threats stemming from global navigation satellite system (GNSS) vulnerabilities.
TimeSource Enhanced PRTC “generates time” by producing its own independent time scale aligned with GNSS, while its phase, time and frequency signal outputs remain autonomous. This provides customers within the communications, defense and security markets with a secure infrastructure, reducing dependency on GNSS and enabling network operators to retake control of the timing source used for network synchronization. The new system is also designed to meet the stringent new ITU recommendation G.8272.1, which requires accuracy of less than 30 ns.
Microsemi’s TimeSource Enhanced PRTC works with the company’s cesium clocks to ensure time is generated in an autonomous manner. Specifically, the TimeSource Enhanced PRTC’s “source of time” aligns accurately with GNSS time without being dependent upon it—avoiding any vulnerability to threats caused by jamming and spoofing.