Bodet NETSILON 7, Руководство пользователя

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67
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
1
on product start-up
>
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
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
1
this is a status in which Netsilon can transmit a time signal without any guarantee of its precision. The precision of the
time zone is no longer guaranteed.
2
reminder: holdover mode duration can be set via the web server.
3
these statuses are shown on the Netsilon LCD screen.
Statuses
3
:
Notifications: Synchronised
Change
of source
Holdover Holdover
Loss of synchronisation
then switch to freerun
Freerun
Synchronised
(primary)
Synchronised
(secondary)
Holdover Holdover Freerun
Statuses:
Notifications: Synchronised
End of holdover / resumption of
synchronisation
Holdover
Freerun
Synchronised
(primary)
Synchronised
(primary)
Holdover