Electrical Format: Selects signaling on either RS-485 or TTL (supporting up to
10V levels) signal lines.
Time Scale: Used to set the desired time scale (UTC, TAI, GPS, or Local). See
above.
Offset (ns): Provides the ability to account for STANAG Line (TOD1 and TOD2
independently) cable delays or other latencies in the STANAG output. Available Off-
set range is –500 to +500ms in 5ns steps.
STANAG TFOM: The Time Figure of Merit for the output.
Under 1PPS Output, the following settings are displayed:
PPS Signature Control: Indicates whether the signal will be present. This function
allows the modulation to stop under certain conditions, see "Signature Control" on
page161.
PPS Offset (ns): Used to account for 1PPS cable delays or other latencies in the
1PPS output. Available Offset range is –500 to +500ms in 5ns steps.
PPS Edge: Indicates whether the output signal is a rising or falling edge pulse.
PPS Pulse Width: Indicates the Pulse Width of the 1PPS output. The Pulse Width is
entered and displayed in nanoseconds (the default Pulse Width is 200 ms).
PPS Electrical Format: Indicates signaling on either RS-485 or TTL (supporting up
to 10V levels) signal lines.
5.2.5.4 STANAG In [1204-1D, -24]
The STANAG Input option cards 1204-1D and 1204-24 STANAG provide (2) configurable
STANAG inputs and (1) 1PPS input for the SecureSync platform.
STANAG In [1204-1D, -24]: Specifications
Inputs: (2) STANAG Inputs, (1) 1PPS Input
Signal Type and Connector: TTL or RS-485 level (user selectable) for STANAG
and 1PPS input. DB25.
Formats Supported:
STANAG 4246 HAVE QUICK I
STANAG 4246 HAVE QUICK II
STANAG 4372 HAVE QUICK IIA
SecureSync 2400 User Manual 425
APPENDIX
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