EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 48
Monitored status of internal 1PPS generated from oscillator frequency:
- OK 1PPS driver operational.
- Alarm 1PPS driver failure.
13.3.2.2 SYNCHRONIZATION
12. PHASE ACCURACY
Status of the estimated phase accuracy during a holdover period:
- OK The phase accuracy is below the Alarm Phase Threshold (see
13.7.3).
- Alarm The phase accuracy is above the Alarm Phase Threshold (see
13.7.3).
13. FREQUENCY ACCURACY
Status of the estimated frequency accuracy during a holdover period:
- OK The frequency accuracy is below the Alarm Frequency Threshold
(see 13.7.3).
- Alarm The frequency accuracy is above the Alarm Frequency Threshold
(see 13.7.3).
13.3.2.3 GNSS SOURCE
14. GNSS LOCK
Performance of the 1PPS signal of the GNSS receiver:
- OK 1PPS signal of the GNSS receiver can be used as 1PPS reference
signal for disciplining operation.
- Alarm 1PPS signal of the GNSS receiver can’t be used as 1PPS
reference signal for disciplining operation.
15. ANTENNA STATUS
State of the connection to the GNSS antenna:
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