Note: When selecting NTP as an input reference, do not select another ref-
erence (such as GNSS, IRIG, etc.) to work with NTP as a reference. NTP
should always be selected as both the Time and 1PPS input when it is
desired to use NTP as an input reference.
Example 4 – Time set manually by the User. Other references may or may
not be available
Note: In order for a manually set time to be considered valid and used to syn-
chronize VersaSync, a “User” needs to be created and enabled in the Refer-
ence Priority table. "The "User/User" Reference" on page158.
In this use case, the objective is to use a hand-set time, in combination with VersaSync's
oscillator as a 1PPS source as valid references.
Step-by-step procedure:
1.
If necessary (see NOTE above), create a “User.”
2.
Move the reference which has “User 0” in the Time column and “User 0” in the
1PPS column to the top of the table, with a Priority value of 1. Click the Enabled
checkbox.
3.
For all other references, uncheck the Enabled checkbox, so that they are all dis-
abled.
If the objective is to use a manually set time as a
backup
to other references (such as
GNSS or IRIG):
1.
Move the "User/User" reference to a place in the table that has a priority lower than
the references the "User/User" reference will be backing up. Make sure the
Enabled checkbox is selected.
2.
With “User/User” enabled, if no other higher priority references are enabled or avail-
able (or if the higher priority references have since been lost), you can now manually
set the System time to the desired value (MANAGEMENT > OTHER: Time Man-
agement > System Time > Manual Time Set). See "System Time" on page138
for more information. VersaSync will go into synchronization using this set time once
you click the Submit button.
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CHAPTER 3 • VersaSync User Manual Rev. 7.0
3.3 Managing References