Use of Time Fault Discrete: There are two options:
Enabled: The TFD input signal is used to validate the STANAG input.
Disabled (default): The TFD input signal is ignored.
Time Fault Discrete State: If this is valid, the indicator will be green. If it is
not valid, the indicator will be orange.
Use of Bit Synchronization (BS): There are two options:
Enabled: The second STANAG input (TOD 2) is used to receive the
BS (Bit Stream) signal used with STANAG 4430-STM. When BS is act-
ive, the configuration of TOD2 is superseded and only used for BS.
Disabled: The second STANAG input (TOD 2) can be used to receive
an independent TOD.
Reference Selection: Indicates which TOD signal is used for syn-
chronization. This will be either TOD 1 or TOD 2.
The incoming input time information may be provided as local time, but System
Time may be configured as UTC time, so internal computations need to be per-
formed. With the Timescale field set to “Local”, select the name of a previously
created Local Clock. The Time Zone and DST rules, as configured in the Local
Clock will be applied to the front panel time display. Refer to for more inform-
ation on Local Clocks.
Under Time of Day Inputs:
TOD Format: The user-selectable format being used. Available formats
include:
STANAG 4246 HAVE QUICK I
STANAG 4246 HAVE QUICK II
STANAG 4372 HAVE QUICK IIA
STANAG 4430 Extended HAVE QUICK
STANAG 4430 Standard Time Message (STM)
ICD-GPS-060A BCD Time Code
ICD-GPS-060A HAVE QUICK
DOD-STD-1399 BCD Time Code
SecureSync 2400 User Manual 469
APPENDIX
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