You can delete logs at any time, see "Clearing All Logs" on page252.
4.6.2.1 Types of Logs
VersaSync generates log files for the following event categories:
Alarms Log
Displays log entries for the Timing System, for example:
The Unit has Rebooted: VersaSync was either rebooted or power cycled.
In Holdover: Input references were available, but all input references have since
been lost. If the references are not restored before the Holdover period expires,
time sync will be lost.
No longer in Holdover: Input references were lost at one point (or declared not
valid), but have since been restored OR the Input references were not restored
before the Holdover period expired (Time Sync alarm is asserted).
In Sync: VersaSync is synchronized to its selected Time and 1PPS reference inputs.
Not In Sync: VersaSync is not synchronized to its Time and 1PPS inputs and is not
currently in Holdover. NTP will indicate to the network that it is Stratum 15 and so
the time server likely be ignored as a time reference.
Frequency Error: The oscillator’s frequency was measured and the frequency error
was too large. Or, the frequency couldn’t be measured because a valid input ref-
erence was not available.
Reference change: VersaSync has selected a different Time and 1PPS input ref-
erence for synchronization. Either the previously selected input reference was
declared not valid (or was lost), so a lower priority reference (as defined by the Refer-
ence Priority Setup table) is now selected for synchronization OR a valid reference
with higher priority than the previous reference is now selected for synchronization.
E X A M P L E :
GNSS is the highest priority reference with IRIG input being a lower priority. VersaSync is
synced to GNSS and so GNSS is the selected reference. The GNSS antenna is disconnected and
IRIG becomes the selected reference. The Reference change entry is added to this log.
Authentication Log
Displays log entries for authentication events (e.g., unsuccessful login attempts, an incor-
rectly entered password, etc.) that are made to VersaSync’s command line interfaces (such
as telnet, SSH, FTP, etc.).
4.6 Quality Management
CHAPTER 4 • VersaSync User Manual Rev. 7.0
243
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