In general, units that do not have a GNSS reference will look to the time ref-
erences as they are ordered in the Reference Priority to obtain their time ref-
erences. If NTP is enabled and valid, it will discipline the unit's system time when
it is the highest valid reference.
2.15.15 NTP Expert Mode
Advanced NTP configuration is possible via the NTP Expert Mode, which allows
you to write directly into the NTP.conf file (the syntax is similar to the one used
with CISCO routers).
Caution: NTP Expert Mode should only be utilized by advanced
users, as incorrectly altering the NTP.conf file can cause NTP to stop
working (if NTP is configured as an input reference, SecureSync
could lose synchronization).
To access the NTP Expert Mode, navigate to MANAGEMENT > NTP Setup. The
switch for the NTP Expert Mode is in the panel NTP Services.
Caution: Any configurations made in NTP Expert Mode will be lost as
soon as NTP Expert Mode is disabled.
NTP utilizes the NTP.conf file for its configuration. Normally, configuration of this
file is indirectly performed by a user via the integrated configuration pages of the
SecureSync Web UI. However, it may be desired in certain circumstances to edit
this file directly, instead of using the web-based setup screens. When Expert
Mode is enabled, the user has direct access to the NTP.conf file.
Caution: Safran Tech Support does not support the editing of the
NTP configuration files while in the Expert Mode. For additional
information on editing the NTP.conf file, please refer to
http://www.ntp.org/.
Note: IMPORTANT: If an undesirable change is made to the NTP.-
conf file that affects the NTP operation, the NTP.conf file can be
manually changed back as long as the previous configuration was
known.
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CHAPTER 2 • SecureSync 2400 User Manual Rev. 5.2
2.15 Configure NTP
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