Note that the System Time affects not only NTP output, but also all other aspects of time man
agement e.g., time distributed via channels other than NTP, logging, and time displayed on the
unit front panel and in the Web UI.
If SecureSync is operated as a Stratum2 server, i.e. as a client to a Stratum1 server (see "Con
figuring "NTP Stratum Synchronization"" on page98 ), the other server will override
SecureSync's System Timescale, should it be different.
Note: IMPORTANT: Make sure you select your desired timescale! Using the
wrong timescale will inevitably result in an undesired time error in your NTP cli
ents.
To change the system timescale SecureSync will use for its NTP output (and other outputs):
1.
Navigate to MANAGEMENT > OTHER: Time Management:
2.
In the System Time panel, click the GEAR icon.
3.
In the Edit System Time window, select the System Timescale SecureSync will be in:
UTC: The network PCs will receive UTC time via NTP.
TAI: The network PCs will receive TAI time via NTP.
GPS: The network PCs will receive GPS time via NTP.
Note: When the Timescale is set to “GPS”, the GPS to UTC Offset
must be set correctly. As of July 2015, the offset between UTC and
GPS is 17 seconds.
96
CHAPTER 2 • SecureSync User Reference Guide Rev. 23
2.15 Configuring NTP
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