Annexes; Annex 1: Synchronisation; Primary Source / Secondary Source - Bodet NETSILON 7 User Manual

9. ANNEXES

9.1 Annex 1: synchronisation

9.1.1. Primary source / secondary source

Scenario 1: loss of synchronisation from the primary then secondary sources
>
Freerun on product start-up
1
>
Synchronisation with the primary source (e.g. GPS)
>
Loss of synchronisation from the primary source
>
Holdover
2
>
Synchronisation with the secondary source (e.g. NTP)
>
Loss of synchronisation from the secondary source
>
Holdover
>
No synchronisation detected
>
Freerun
Statuses : Freerun
3
Notifications: Synchronised
Scenario 2: synchronisation with the secondary source after loss of the primary source
>
Freerun on product start-up
>
Synchronisation with the primary source (e.g. GPS)
>
Loss of synchronisation from the primary source
>
Holdover
>
Re-synchronisation with the primary source
Statuses: Freerun
Notifications: Synchronised
t his is a status in which Netsilon can transmit a time signal without any guarantee of its precision. The precision of the
1
time zone is no longer guaranteed.
reminder: holdover mode duration can be set via the web server.
2
these statuses are shown on the Netsilon LCD screen.
3
Synchronised
Holdover
(primary)
Holdover
Synchronised
Holdover
(primary)
Holdover
Synchronised
(secondary)
Change
Holdover
of source
Synchronised
End of holdover / resumption of
synchronisation
Holdover Freerun
Loss of synchronisation
then switch to freerun
(primary)
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