EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 20
For the basic EC20S configuration, a few recommendations:
- refer to 7.2 regarding the DC power supply,
- refer to 9.1 regarding the multi-GNSS synchronization source,
- refer to 9.2 and 9.3 regarding the External 1PPS/NMEA synchronization source.
6.5 START-UP SEQUENCE
For a standard configuration implementing the multi-GNSS synchronization source, after the system
initialization sequence, the GNSS receiver locks to the satellites constellations (event reported by the
‘SRC’ LED which switches from red to green), and once the internal oscillator warming up is complete,
the oscillator is disciplined to get the ‘Locked’ conditions (see 10.2). The whole process may take about
15 minutes.
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