Spectra EC22S, Руководство пользователя

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EPSILON CLOCK MODEL EC22S Spectracom Corporation
EPSILON CLOCK User’s Manual 5-8
‘Frequency’: Monitoring of the frequency output signals delivered by the EC22S
a. OK (Green): The signal is delivered at all outputs
b. Alarm (Red): The signal is not delivered at one of the outputs
c. Squelched (Gray): The signal is not delivered; shut off for phase or frequency
accuracy alarm reason
‘1PPS: Monitoring of the 1PPS output signals delivered by the EC22S
a. OK (Green): The signal is delivered at all the outputs
b. Alarm (Red): The signal is not delivered at one of the outputs
c. Squelched (Gray): The signal is not delivered; shut off for phase or frequency
accuracy alarm reason
‘Optional Outputs’: State of the optional signals delivered by the EC22S
a. OK (Green): The signal is delivered at the output
b. Alarm (Red): The signal is not delivered at the output
c. Squelched (Red): The signal is not delivered at the output
d. Disabled (Gray): The signal is not available in this EC22S revision
GPS Status Right/Left board
‘GPS Latitude’: Current latitude of the GPS antenna
‘GPS Longitude’: Current longitude of the GPS antenna
‘GPS Altitude’: Current altitude of the GPS antenna
‘Self Survey’: Not applicable in ‘Manual’ and ‘Mobile’ modes. In ‘Automatic’ mode, the self
survey phase allows the GPS receiver to average continuously the geographical position of
the GPS antenna for a period of one hour to get a precise GPS antenna position. The
following values are then possible:
a. Pending: The calculation of precise GPS antenna position is not done.
b. In progress: The calculation of precise GPS antenna position is in progress.
c. Done: The calculation of precise GPS antenna position is done.
‘Nb of locked Satellites’: Number of locked GPS channels (out of a maximum of 12)
‘ID / SNR’: Satellite number and SNR (Signal over Noise Ratio) of the 8 best satellites
channels tracked by the GPS receiver.