Spectracom SecureSync - Page 456

STANAG 4430 Standard Time Message (STM)
ICD-GPS-060A BCD Time Code
ICD-GPS-060A HAVE QUICK
DOD-STD-1399 BCD Time Code
Electrical Type: Selects synchronization to either RS-485 or TTL (supporting up to 10V
levels) signal lines.
Offset: Provides the ability to account for STANAG Line (TOD1 and TOD2 inde-
pendently) cable delays or other latencies in the STANAG input. Available Offset range
is –500 to +500ms in 5ns steps.
TFOM Threshold: Under the STANAGprotocol, the TFOM (Time Figure of Merit)
threshold value can be utilized as a means to validate timing data based on the TFOM.
For more information on TFOM, see "Configuring the Oscillator" on page215.
1PPS Input Settings tab
1PPS Offset: Used to account for 1PPS cable delays or other latencies in the 1PPS input.
Available Offset range is –500 to +500ms in 5ns steps
PPS Edge: The operator can select if the output signal is a rising or falling edge pulse.
PPS Electrical Format: Selects synchronization to either RS-485 or TTL (supporting up to
10V levels) signal lines.
STANAG Input: Status Window
To view the current settings of a STANAG Input (also referred to as ‘Reference’), go to its Status
window. For instructions, see: "Viewing Input/Output Configuration Settings" on page347.
The Web UI list entries for this card are: STANAG In and STANAG In, Isolated.
440 SecureSync User Reference Guide
APPENDIX