The Status window displays the following settings:
Reference ID: If you have only one IRIG card installed, SecureSync will number that
card 0 and it will be identified as irg0. Additional cards will be numbered irg1 or
above.
Validity: If the IRIG input is not present, or is not considered valid and qualified, the
“1PPS Validity” and “Time Validity” fields will be considered “Not Valid” (Orange).
Once the IRIG input has been supplied and the signal is considered valid and qual-
ified, the two indicators will then turn “Valid” (Green).
Format: Identifies the formatting of the IRIG input signal, as defined by the IRIG gen-
erator time source. The possible values are:
IRIG A
IRIG B
IRIG G
NASA-36
Modulation Type: Identifies the type of input signal modulation. The possible values
are:
IRIG DCLS—A TTL (Phase) modulated signal.
IRIG AM—An amplitude modulated signal.
Frequency—The IRIG modulation frequency. This is determined by the con-
figuration of Format and Modulation Type. See also: "IRIG Carrier Fre-
quencies" on page546.
SecureSync 2400 User Manual 413
APPENDIX
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