Timescale: Used to select the time base for the incoming time code data. The
entered Timescale is used by the system to convert the time in the incoming
data stream to UTC time for use by the System Time. The available choices
are:
UTC—Coordinated Universal Time ("temps universel coordonné"), also
referred to as ZULU time
TAI—Temps Atomique International
GPS—The raw GPS time as transmitted by the GNSS satellites (as of 5-
August-2019, this is 18 seconds ahead of UTC time)
A local clock set up through the Time Management Page—Refer to
"The Time Management Screen" on page136 for more information
on how to configure and read the System Time. Local timescale allows
a Local Clock to apply a time offset for Time Zone and DST correction.
Offset (ns): Provides the ability to account for STANAG Line (TOD1 and
TOD2 independently) cable delays or other latencies in the STANAG output.
Available Offset range is –500 to +500ms in 5ns steps.
3.
Click Submit.
2.7.5 Signature Control
Signature Control is a user-set parameter that controls under which output states an out-
put will be present. This feature allows you to determine how closely you want to link an
output to the status of the active input reference e.g., by deactivating it after holdover
expiration. It is also offers the capability to indirectly send an input-reference-lost-alarm to
a downstream recipient via the presence of the signal.
E X A M P L E S :
You can setup Signature Control such that VersaSync's built in 1PPS output becomes disabled
the moment its input reference is lost (e.g., if a valid GNSS signal is lost).
Or, you can setup your output signal such that remains valid while VersaSync in holdover mode,
but not in free run.
The available options are:
I.
Output Always Enabled—The output is present, even if VersaSync is not syn-
chronized to its references (VersaSync is free running).
II.
Output Enabled in Holdover—The output is present unless VersaSync is not syn-
chronized to its references (VersaSync is in Holdover mode).
60
CHAPTER 2 • VersaSync User Manual Rev. 7.0
2.7 Configuring Inputs/Outputs
To Next Page
Loading...
Need help?
General