Minor and Major Alarms
There are several conditions that can cause the Web UI status lights to indicate a Minor alarm has been asserted. These conditions include:
- Too few GPS satellites, 1st threshold: The GNSS receiver has been tracking less than the minimum number of satellites for too long of a duration. Refer to Troubleshooting GNSS Reception for information on troubleshooting GNSS reception issues.
There are several conditions that can cause the Web UI status lights to indicate a Major alarm has been asserted. These conditions include:
- Frequency error: Indicates a jump in the oscillator’s output frequency has been detected. Contact Tech Support for additional information.
- 1PPS is not in specification: The 1PPS input reference is either not present or is not qualified.
- System Sync: A Major alarm is asserted when the Timing System is not in sync (Input references are not available and the unit is not in Holdover). Examples of not being synced include:
- When the Timing System has just booted-up and has not yet synced to a reference.
- When all input references were lost and Holdover Mode has since expired.
- Timing System Error: A problem has occurred in the Timing System. Contact Spectracom technical support if the error continues.