GNSS time server meets rugged international environmental standards

Microchip Technology Inc. has announced its GridTime 3000 GNSS Time Server – a software-configurable solution providing substations with a new level of redundancy, security, and resiliency.

The system generates precise time and frequency signals to synchronise analog and digital communication systems. This resilient timing platform includes multiple timing inputs for protection in the event of a GNSS signal disruption induced by severe weather, environmental disturbances or signal jamming or spoofing. Also, three levels of internal holdover options are offered, including a base VCTCXO and an optional high-performance OCXO or Rubidium oscillator option to expand holdover duration and enhance performance.

This precision time server is compliant with IEC 61850-3, the environmental component of IEC 61850, an industry-standard that defines communication protocols for power substations. It is also compliant with IEEE 1613-2009, the international environmental and testing requirements standard for power substations. Compliance to these standards shows high resistance to electrical transients and environmental extremes, including temperature, humidity and other factors and ensures reliability in harsh substation environments.

Including a hardware-based cryptographic assurance module, the system uses industry-standard RSA- and AES-based encryption to protect against unauthorised configuration upload of malicious code.

“Surges, adverse weather and cyberattacks targeting critical infrastructure all require resilient timing architectures and technology to mitigate the threats and ensure continuous timing,” said Randy Brudzinski, vice president, Microchip’s frequency and time systems business unit. “This solution provides our customers a new level of performance, which translates to an enhancement of the reliability of communications network in their digital substations.”

The server includes an internal web browser management interface, CMT. The CMT offers configuration and management for straightforward remote managing and monitoring of the device and a new array of accessories, including a multi-band, multi-constellation GNSS receiver system and cold-swappable power supplies.